US20040168399A1 - Method of producing a work using a jointing compound or plaster for construction elements - Google Patents
Method of producing a work using a jointing compound or plaster for construction elements Download PDFInfo
- Publication number
- US20040168399A1 US20040168399A1 US10/795,356 US79535604A US2004168399A1 US 20040168399 A1 US20040168399 A1 US 20040168399A1 US 79535604 A US79535604 A US 79535604A US 2004168399 A1 US2004168399 A1 US 2004168399A1
- Authority
- US
- United States
- Prior art keywords
- plaster
- filling
- jointing compound
- mineral filler
- silicone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000011505 plaster Substances 0.000 title claims abstract description 134
- 150000001875 compounds Chemical class 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 title claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 38
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 30
- 239000012764 mineral filler Substances 0.000 claims abstract description 24
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 17
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000008346 aqueous phase Substances 0.000 claims abstract description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 9
- 239000002421 finishing Substances 0.000 claims description 21
- 239000000123 paper Substances 0.000 claims description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 10
- 229920002554 vinyl polymer Polymers 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 229920000881 Modified starch Polymers 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 235000019426 modified starch Nutrition 0.000 claims description 6
- 239000010451 perlite Substances 0.000 claims description 6
- 235000019362 perlite Nutrition 0.000 claims description 6
- 229920001897 terpolymer Polymers 0.000 claims description 6
- -1 vinyl maleate Chemical compound 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 239000000454 talc Substances 0.000 claims description 5
- 229910052623 talc Inorganic materials 0.000 claims description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 229920006243 acrylic copolymer Polymers 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- 241001643597 Evas Species 0.000 claims description 2
- 125000005376 alkyl siloxane group Chemical group 0.000 claims description 2
- 229920013822 aminosilicone Polymers 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229920001519 homopolymer Polymers 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- 150000004756 silanes Chemical class 0.000 claims description 2
- 125000005625 siliconate group Chemical group 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 4
- 238000001035 drying Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 239000000654 additive Substances 0.000 description 4
- 239000012748 slip agent Substances 0.000 description 4
- 239000003139 biocide Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000004447 silicone coating Substances 0.000 description 2
- 102100026891 Cystatin-B Human genes 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 101000912191 Homo sapiens Cystatin-B Proteins 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 238000012505 colouration Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
- E04F13/04—Bases for plaster
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
- C04B2111/00672—Pointing or jointing materials
Definitions
- the present invention relates to a jointing compound or plaster for construction elements, particularly paper-faced plasterboards, and to a method of producing a work such as a partition, a wall covering or a ceiling.
- plasterboards for producing partitions, coverings for vertical or inclined elements, or for producing ceilings, whether suspended or not.
- These boards generally consist of a core, essentially made of plaster, covered on each of its sides with a sheet, which serves both as reinforcement, and as facing and which may consist of paperboard or of mineral fibres.
- such a plaster is a finishing plaster, which means that it cannot be used for filling the space between two boards, especially because it does not allow good bonding and adhesion of the jointing tape. It is therefore necessary to have two plasters: a first plaster, called filling plaster, used to fill the space between two boards, and a second plaster, called finishing plaster, which finishes off the junction between the two boards.
- the colour of the finishing plaster is important as it must be as close as possible to that of the facing of the plasterboard. But it is not necessary for the shrinkage of the finishing plaster after drying to be very low, since this plaster is applied only with a small thickness.
- the aforementioned application WO-A-9702395 therefore does not address the problem of shrinkage after drying, since this does not matter for the application as a finishing plaster.
- a negligible shrinkage after drying for example, less than 20% as determined by the ring test
- a hydrophobic agent which is a silicone derivative
- a second subject of the present invention is a method of preparing the plaster, in which the constituents of the plaster are mixed in any order.
- a third subject of the present invention is a method of producing a work, comprising the juxtaposition of construction elements, the filling of the space between the construction elements by means of a filling plaster, the laying of a tape and the covering of the tape by means of a finishing plaster and is characterized in that the same plaster is used as filling plaster and as finishing plaster.
- the plaster according to the invention therefore comprises, in percentages by weight with respect to the total weight of plaster:
- any mineral filler commonly employed for the manufacture of a jointing compound or plaster may be used.
- the mineral filler will be light in colour, preferably white, and the mean diameter d 50 of which is in general between 5 and 35 microns, so that the plaster after drying gives a smooth finish corresponding to that of the facing of the board.
- mineral filler examples include calcium carbonate, anhydrous or dihydrated calcium sulphate, magnesium carbonate, dolomite, silicas, silicates, aluminates and other such materials.
- calcium carbonate CaCO 3 is used.
- the mineral filler preferably represents between 50 and 70% of the total weight of the plaster.
- the binder/silicate-based agent weight ratio is between 0.5 and 2.
- the binder/hydrophobic agent weight ratio is between 1.5 and 10.
- the mineral filler furthermore includes perlite, preferably expanded and even more preferably hydrophobic perlite.
- the amount of perlite is then generally between 2 and 5%.
- organic binder dispersible in an aqueous phase mention may be made of polyvinyl acetate homopolymers (plasticized or unplasticized), ethylene/vinyl acetate copolymers (plasticized or unplasticized EVAs), ethylene/vinyl versatate copolymers, vinyl acetate/vinyl versatate copolymers, polyacrylics, vinyl acetate/acrylic copolymers, styrene/acrylic copolymers, styrene/butadiene copolymers, vinyl acetate/vinyl versatate/vinyl maleate terpolymers, vinyl acetate/vinyl versatate/acrylic terpolymers, acrylic terpolymers and blends thereof.
- polyvinyl acetate homopolymers plasticized or unplasticized
- ethylene/vinyl acetate copolymers plasticized or unplasticized EVAs
- ethylene/vinyl versatate copolymers vinyl acetate
- the proportion of organic binder is preferably between 2 and 12% of the total weight of the plaster.
- the silicate-based agent (different from the mineral filler) preferably comprises talc and/or mica and/or a clay. Preferably, a mixture of talc and mica is used.
- the proportion of silicate-based agent is preferably between 3 and 10% of the total weight of the plaster.
- the hydrophobic agent is a silicone derivative.
- silicon derivatives mention may be made of siliconates, silanes, hydrogenated silicone oils, silicone emulsions, aminosilicone emulsions, alkylsiloxane resins, such as hydrogenomethyl-polysiloxane and aminated polydimethyl-siloxane, and mixtures thereof.
- a resin of the aminated polydimethyl-siloxane type is used as silicone derivative.
- the proportion of silicone derivative is preferably between 0.5 and 3% of the total weight of the plaster.
- the proportion of silicone derivative is chosen so as to allow a joint to be produced which has the same surface properties as those of the facing paper.
- These surface properties are decolouration or colouration owing to the effect of the natural colour, reflectance and surface water absorption.
- These properties are described in detail in application WO-A-9702395 (the content of which is incorporated as reference), to which reference may be made for further details. It is understood that the technical characteristics described in that application apply mutadis mutandis to the present application.
- the proportion of polyvinyl alcohol is preferably between 0.05 and 1% of the total weight of the plaster.
- the plaster furthermore includes starch and/or a starch derivative.
- the proportion of starch and/or starch derivative is in general between 0.05 and 5%, preferably between 0.1 and 1%, of the total weight of the plaster.
- the plaster according to the invention may be prepared by mixing its constituents in any order.
- the plaster according to the invention can be used for producing, by means of plasterboards, many types of work, such as partitions, wall coverings or ceilings, whether suspended or not.
- the plaster according to the invention is particularly suitable for producing a work by means of paper-faced plasterboards.
- the plaster according to the invention may be used merely as a finishing plaster, a conventional plaster providing the function of a filling plaster.
- the production of a work by means of plasterboards generally comprises the juxtaposition of plasterboards, the filling of the space between the boards by means of a filling plaster, the laying of a tape, the covering of the tape by means of the filling plaster and the covering of the filling plaster with a finishing plaster.
- plasterboards which have a paper facing, the silicone content of the coating of which is between 0.1 and 1%, are joined together.
- the content of the hydrophobic or silicone agent of the plaster is between 0.5 and 3%.
- the plaster content/facing content weight ratio is between 3 and 10 for the optimization described above.
- EP 521 804 in the name of the Applicant describes a paper for covering plasterboards, and the plasterboards covered with this paper. These boards are very suitable for use with the plaster according to the invention.
- a control plaster the composition of which is in accordance with the aforementioned international application WO-A-9702395, and plasters A to F according to the invention were prepared.
- the shrinkage of the plaster according to the invention is less than that of the control.
- the plaster according to the invention may be a setting plaster or a drying plaster; preferably it is a drying plaster.
- the drying plaster is advantageously a plaster called ready-mix plaster, that is to say one into which water has already been incorporated.
Abstract
A jointing compound or plaster for construction elements, particularly paper-faced plasterboards. This plaster includes, in percentages by weight with respect to the total weight of plaster 50 to 85% of a mineral filler; 1 to 20% of an organic binder dispersible in an aqueous phase; 1 to 15% of a silicate-based agent other than the mineral filler; 0.2 to 5% of a hydrophobic agent which is a silicone derivative; 0.05 to 5% of polyvinyl alcohol; and water to make up to 100%. A method of producing a work such as a partition, a wall covering ox a ceiling is also disclosed.
Description
- The present application is a continuation of PCT International Application No. PCT/FR01/02269, filed in France on Jul. 12, 2001, which claims the priority of French Patent Application No. 00 09 393, filed in France on Jul. 18, 2000, the entire contents of both applications are hereby incorporated herein by reference.
- The present invention relates to a jointing compound or plaster for construction elements, particularly paper-faced plasterboards, and to a method of producing a work such as a partition, a wall covering or a ceiling.
- It is well known to use plasterboards for producing partitions, coverings for vertical or inclined elements, or for producing ceilings, whether suspended or not.
- These boards generally consist of a core, essentially made of plaster, covered on each of its sides with a sheet, which serves both as reinforcement, and as facing and which may consist of paperboard or of mineral fibres.
- The subject matter of the international application published under number WO-A-9702395 is a method of constructing finishings, in which plasterboards are joined together with a first plaster and the joints between the boards are finished off with a complementary plaster having the following composition:
- 50 to 85% of a mineral filler;
- 1 to 20% of an organic binder dispersible in an aqueous phase;
- 0.2 to 5% of a hydrophobic agent;
- 1 to 15% of a workability agent (water-retaining agent/thickener);
- 0.1 to 2% of a slip agent;
- 1 to 12% of a complementary slip agent;
- 0.1 to 5% of a dispersant;
- 0.001 to 0.015% of a pigment;
- 0.1 to 0.3% of a biocide;
- 0.1 to 0.3% of an antifoam agent; and
- water.
- The colour of this plaster is matched as best as possible to that of the facing paper.
- However, such a plaster is a finishing plaster, which means that it cannot be used for filling the space between two boards, especially because it does not allow good bonding and adhesion of the jointing tape. It is therefore necessary to have two plasters: a first plaster, called filling plaster, used to fill the space between two boards, and a second plaster, called finishing plaster, which finishes off the junction between the two boards.
- Furthermore, such a plaster has too great a shrinkage after hardening. The colour of the filling plaster is of little matter as it will be covered with the finishing plaster. On the other hand, it must, after drying, have a negligible shrinkage as it is applied with a significant thickness.
- However, the colour of the finishing plaster is important as it must be as close as possible to that of the facing of the plasterboard. But it is not necessary for the shrinkage of the finishing plaster after drying to be very low, since this plaster is applied only with a small thickness. The aforementioned application WO-A-9702395 therefore does not address the problem of shrinkage after drying, since this does not matter for the application as a finishing plaster.
- It would therefore be beneficial to have a plaster, which could serve both as filling plaster and as finishing plaster. Such a plaster would therefore have to have one or more, preferably all, of the following properties:
- good adhesion to the paper constituting the facing of the plaster board;
- good bonding and good adhesion of the jointing tape;
- a colour identical to that of the facing paper;
- a negligible shrinkage after drying (for example, less than 20% as determined by the ring test);
- water absorption as close as possible to that of the facing paper, so as to avoid having to use a primer coat before wallpapering or painting;
- moderate adhesion of the paper constituting the wallpaper, so as to make it possible for it to be stripped off subsequently one or more times;
- easy paintability.
- The Applicant has therefore carried out extensive research for the purpose of developing such a plaster.
- It has now succeeded in doing so and consequently proposes a plaster having the following composition: in percentages by weight with respect to the total weight of plaster:
- 50 to 85% of a mineral filler;
- 1 to 20% of an organic binder dispersible in an aqueous phase;
- 1 to 15% of a silicate-based agent;
- 0.2 to 5% of a hydrophobic agent which is a silicone derivative;
- 0.05 to 5% of polyvinyl alcohol; and
- water to make up to 100%.
- A second subject of the present invention is a method of preparing the plaster, in which the constituents of the plaster are mixed in any order.
- A third subject of the present invention is a method of producing a work, comprising the juxtaposition of construction elements, the filling of the space between the construction elements by means of a filling plaster, the laying of a tape and the covering of the tape by means of a finishing plaster and is characterized in that the same plaster is used as filling plaster and as finishing plaster.
- Further characteristics and advantages of the invention will now be described in detail in the description, which follows.
- Plaster According to the Invention
- The plaster according to the invention therefore comprises, in percentages by weight with respect to the total weight of plaster:
- 50 to 85% of a mineral filler;
- 1 to 20% of an organic binder dispersible in an aqueous phase;
- 1 to 15% of a silicate-based agent;
- 0.2 to 5% of a hydrophobic agent which is a silicone derivative;
- 0.05 to 5% of polyvinyl alcohol; and
- water to make up to 100%.
- As mineral filler, any mineral filler commonly employed for the manufacture of a jointing compound or plaster may be used. In general, the mineral filler will be light in colour, preferably white, and the mean diameter d50 of which is in general between 5 and 35 microns, so that the plaster after drying gives a smooth finish corresponding to that of the facing of the board.
- As examples of mineral filler, mention may be made of calcium carbonate, anhydrous or dihydrated calcium sulphate, magnesium carbonate, dolomite, silicas, silicates, aluminates and other such materials.
- Preferably, calcium carbonate CaCO3 is used.
- The mineral filler preferably represents between 50 and 70% of the total weight of the plaster.
- According to one embodiment, the binder/silicate-based agent weight ratio is between 0.5 and 2.
- According to one embodiment, the binder/hydrophobic agent weight ratio is between 1.5 and 10.
- According to an advantageous embodiment of the invention, the mineral filler furthermore includes perlite, preferably expanded and even more preferably hydrophobic perlite. The amount of perlite is then generally between 2 and 5%.
- As organic binder dispersible in an aqueous phase, mention may be made of polyvinyl acetate homopolymers (plasticized or unplasticized), ethylene/vinyl acetate copolymers (plasticized or unplasticized EVAs), ethylene/vinyl versatate copolymers, vinyl acetate/vinyl versatate copolymers, polyacrylics, vinyl acetate/acrylic copolymers, styrene/acrylic copolymers, styrene/butadiene copolymers, vinyl acetate/vinyl versatate/vinyl maleate terpolymers, vinyl acetate/vinyl versatate/acrylic terpolymers, acrylic terpolymers and blends thereof.
- The proportion of organic binder is preferably between 2 and 12% of the total weight of the plaster.
- The silicate-based agent (different from the mineral filler) preferably comprises talc and/or mica and/or a clay. Preferably, a mixture of talc and mica is used.
- The proportion of silicate-based agent is preferably between 3 and 10% of the total weight of the plaster.
- The hydrophobic agent is a silicone derivative. As silicon derivatives, mention may be made of siliconates, silanes, hydrogenated silicone oils, silicone emulsions, aminosilicone emulsions, alkylsiloxane resins, such as hydrogenomethyl-polysiloxane and aminated polydimethyl-siloxane, and mixtures thereof.
- Preferably, a resin of the aminated polydimethyl-siloxane type is used as silicone derivative.
- The proportion of silicone derivative is preferably between 0.5 and 3% of the total weight of the plaster.
- Advantageously, the proportion of silicone derivative is chosen so as to allow a joint to be produced which has the same surface properties as those of the facing paper. These surface properties are decolouration or colouration owing to the effect of the natural colour, reflectance and surface water absorption. These properties are described in detail in application WO-A-9702395 (the content of which is incorporated as reference), to which reference may be made for further details. It is understood that the technical characteristics described in that application apply mutadis mutandis to the present application.
- The proportion of polyvinyl alcohol is preferably between 0.05 and 1% of the total weight of the plaster.
- According to an advantageous embodiment, the plaster furthermore includes starch and/or a starch derivative.
- The proportion of starch and/or starch derivative is in general between 0.05 and 5%, preferably between 0.1 and 1%, of the total weight of the plaster.
- The plaster according to the invention may be prepared by mixing its constituents in any order.
- Of course, provided that the proportions assigned to each of the essential constituents are respected, it is possible to introduce into the plaster according to the invention, as secondary ingredients, additives normally used to facilitate the processing of the other constituents or for conferring additional particular properties on the plaster. By way of examples of such additives, mention may be made of water-retaining agents or thickeners, slip agents, dispersants, antigels, pigments, biocides and antifoams. These additives are described, for example, in the application WO-A-9702395 (the content of which is incorporated by reference), to which reference may be made for further details.
- The plaster according to the invention can be used for producing, by means of plasterboards, many types of work, such as partitions, wall coverings or ceilings, whether suspended or not.
- The plaster according to the invention is particularly suitable for producing a work by means of paper-faced plasterboards.
- Of course, the plaster according to the invention may be used merely as a finishing plaster, a conventional plaster providing the function of a filling plaster.
- Method According to the Invention
- The production of a work by means of plasterboards generally comprises the juxtaposition of plasterboards, the filling of the space between the boards by means of a filling plaster, the laying of a tape, the covering of the tape by means of the filling plaster and the covering of the filling plaster with a finishing plaster.
- Surprisingly, the Applicant has succeeded in producing a work using, as filling plaster and as finishing plaster, one and the same plaster. This is achieved by:
- (1) the plaster that has been developed and has been described hereinabove; and/or
- (2) by matching the content of hydrophobic agent (silicone) of the finished or completed joint (namely filled and finished) with the content of hydrophobic agent (silicone) of the facing of the board; and/or
- (3) by increasing the binder content of the plasters of the type of those described in the application WO-A-9702395 and, optionally, the content of silicate-based agents (other than the mineral filler).
- With regard to point (1), the plaster has been described in detail above.
- With regard to point (2), the matching of the silicone contents of the facing and of the plaster was not clearly demonstrated in the application WO-A-9702395. The invention therefore proposes to optimize the plaster content/facing content weight ratio, of between 3 and 10, with preferred content values for the facing and the board.
- With regard to point (3), the adhesion to tape was not discussed and not demonstrated in the application WO-A-9702395, since the adhesion to tape is not a criterion for finishing plasters. The invention therefore proposes to increase the binder content and/or to add polyvinyl alcohol to plasters of the type described in that application WO-A-9702395 in order to optimize the adhesion to tape (without the other properties being affected).
- According to an additional and advantageous characteristic of the invention, plasterboards which have a paper facing, the silicone content of the coating of which is between 0.1 and 1%, are joined together. According to another characteristic, the content of the hydrophobic or silicone agent of the plaster is between 0.5 and 3%. The plaster content/facing content weight ratio is between 3 and 10 for the optimization described above.
- This therefore constitutes an excellent compromise between easy painting, effective retention of the wallpaper, strippability of the wallpaper and good adhesion of the plaster to the facing of the plasterboard, as will become apparent on reading the examples which follow.
- European Patent Application No. EP 521 804 in the name of the Applicant describes a paper for covering plasterboards, and the plasterboards covered with this paper. These boards are very suitable for use with the plaster according to the invention.
- The following examples are given purely by way of illustration and imply no limiting character.
- A control plaster, the composition of which is in accordance with the aforementioned international application WO-A-9702395, and plasters A to F according to the invention were prepared.
- The various plasters were composed, apart from the essential constituents, of additives normally used in the manufacture of plasters and well known to those skilled in the art.
- The composition of the various plasters is given in the following table:
Constituents Plasters Function Nature Control A B C D E F Mineral filler CaCO3 55.722 56.522 56.322 55.622 56.022 55.122 56.522 Mineral filler Perlite(1) 3.535 3.535 3.535 3.535 3.535 3.535 3.535 Binder EVA resin 3.6 3.6 3.6 4.5 3.6 4.5 3.6 Hydrophobic agent Siloxane(2) 2.0 2.0 2.0 2.0 2.0 2.0 1.0 Workability agent Talc 1.35 1.35 1.35 1.35 1.35 1.35 1.35 Water-retaining Ether(3) 0.45 0.45 0.45 0.45 0.45 0.45 0.45 agent/thickener Slip agent Mica 3.6 3.6 3.6 3.6 3.6 3.6 3.6 Dispersant/Antigel Ethylene 0.577 0.577 0.577 0.577 0.577 0.577 0.577 glycol Pigment Iron oxide 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Biocide Mixture(4) 0.084 0.084 0.084 0.084 0.084 0.084 0.084 Antifoam agent Nonionic 0.072 0.072 0.072 0.072 0.072 0.072 0.072 surfactant Cohesion resin EVOH 0 0.2 0.4 0.2 0.2 0.2 0.2 Adhesion promoter Starch 0 0 0 0 0.5 0.5 0 derivative Balance to 100 Water 29 28 28 28 28 28 29 TOTAL 100 100 100 100 100 100 100 - Tests were carried out on the adhesion of the PREGYLISS 35 setting plaster from the Lafarge Plâtres range to boards as described in the aforementioned application EP-A-521 804, having:
- a) a coating containing 0% silicone;
- b) a coating containing 0.2% silicone;
- c) a coating containing 0.4% silicone.
- It was found that too high a silicone content in the coating was unfavourable to good bonding of the conventional setting plaster (adhesion value at best 0.25 MPa).
- Adhesion tests were carried out under the conditions described in paragraph 6.5 of the draft European Standard CEN241N175 of January 1998, which covers the characteristics of coatings on specimens of the control plaster and plasters A to F of Example 1, with boards having a silicone content in the coating of 0.4%.
- The tape adhesion was determined under the conditions described in “Guide Technique—Enduits de traitement des joints entre plaques de plâtre—Modalités d'essais” [Technical Guide—Plasters for treating joints between plasterboards—Test methods] of Specialist Group No. 9 of the Commission of the CSTB responsible for drawing up technical literature (January 1999).
- The results are given in the table below.
Plasters Type of test Control A B C D E F Adhesion Values 0.249 0.362 0.418 0.433 0.336 0.397 0.418 (MPa) Shore C 60 67 71 71 66 73 70 hardness A2P ® Mass 376 1052 1357 1331 1148 1763 1326 (g) tape Delamination 0 0 45 10 5 65 15 bonding (%) SOROPA ® Mass 522 1160 1425 1366 1278 1585 1360 (g) tape Delamination 0 20 75 50 35 100 85 bonding (%) - It is clearly apparent that all the plasters according to the invention have a higher performance than the control plaster.
- Joints as indicated in Example 3 were produced. A wallpaper was then pasted onto them in the conventional way.
- Next, for the purpose of determining the impact of the silicone content of the coating of the facing paper of the boards on the stripping behaviour, a steam-stripping test was carried out.
- It was found that stripping was more difficult when the boards have a coating containing no silicone.
- Thus, wallpaper was applied and then removed several times. The results are the same as for the first stripping. However, it was noted that, on boards with a silicone coating, at each stripping operation markedly more adhesive was removed than on boards with a non-silicone coating.
- A test was carried out to determine the shrinkage after drying. The following results were obtained:
Plaster Control A B Shrinkage (%) 21 17 17 - The shrinkage of the plaster according to the invention is less than that of the control.
- A test was carried out under the conditions described in the application WO-A-9702395 in order to determine the L*, a* and b* values (CIE 1976 standard, Minolta CR310 apparatus). The following values were obtained, the middle column giving the average value for the plasters according to the invention and the right-hand column for the board according to application EP-A-521 804 used in Example 3.
Plaster Board L* 86 to 88.2 86.5 to 88.7 a* −0.5 to −0.7 −0.3 to −0.6 b* 3.7 to 4.1 2.8 to 3.8 - The differences between the plaster and the board are imperceptible to the eye. The surface characteristics, as expressed according to the aforementioned application WO-A-9702395, are therefore very good.
- The plaster according to the invention may be a setting plaster or a drying plaster; preferably it is a drying plaster. In the latter case, the drying plaster is advantageously a plaster called ready-mix plaster, that is to say one into which water has already been incorporated.
- Although only preferred embodiments are specifically illustrated and described herein, it will be appreciated that many modifications and variations of the present invention are possible in light of the above teachings and within the purview of the appended claims without departing from the spirit and intended scope of the invention.
Claims (23)
1. A jointing compound or plaster for construction elements comprising, in percentages by weight with respect to the total weight of plaster:
50 to 85% of a mineral filler;
1 to 20% of an organic binder dispersible in an aqueous phase;
1 to 15% of a silicate-based agent other than the mineral filler;
0.2 to 5% of a hydrophobic agent which is a silicone derivative;
0.05 to 5% of polyvinyl alcohol; and
water to make up to 100%.
2. The jointing compound or plaster according to claim 1 , which furthermore includes starch or a starch derivative.
3. The jointing compound or plaster according to claim 2 , in which the proportion of starch or starch derivative is between 0.05 and 5%.
4. The jointing compound or plaster according to claim 1 , in which the silicate-based agent comprises talc or mica or a clay.
5. The jointing compound or plaster according to claim 4 , in which the silicate-based agent is a talc/mica mixture.
6. The jointing compound or plaster according to claim 1 , in which the binder/silicate-based agent weight ratio is between 0.5 and 2.
7. The jointing compound or plaster according to claim 6 , in which the binder/hydrophobic agent weight ratio is between 1.5 and 10.
8. The jointing compound or plaster according to claim 1 , in which the mineral filler furthermore includes perlite.
9. The jointing compound or plaster according to claim 8 , in which the mineral filler comprises between 2 and 5% perlite with respect to the total weight of the plaster.
10. The jointing compound or plaster according to claim 1 , in which the organic binder dispersible in an aqueous phase is chosen from the group consisting of polyvinyl acetate homopolymers (plasticized or unplasticized), ethylene/vinyl acetate copolymers (plasticized or unplasticized EVAs), ethylene/vinyl versatate copolymers, vinyl acetate/vinyl versatate copolymers, polyacrylics, vinyl acetate/acrylic copolymers, styrene/acrylic copolymers, styrene/butadiene copolymers, vinyl acetate/vinyl versatate/acrylic terpolymers, vinyl acetate/vinyl versatate/vinyl maleate terpolymers, acrylic terpolymers and blends thereof.
11. The jointing compound or plaster according to claim 1 , in which the silicone derivative is chosen from the group consisting of siliconates, silanes, hydrogenated silicone oils, silicone emulsions, aminosilicone emulsions, alkylsiloxane resins, such as hydrogenomethylpolysiloxane and aminated polydimethylsiloxane, and mixtures thereof.
12. The jointing compound or plaster according to claim 1 , in which the mineral filler comprises calcium carbonate CaCO3.
13. The jointing compound or plaster according to claim 1 , comprising, in percentages by weight with respect to the total weight of plaster:
50 to 70% of a mineral filler;
2 to 12% of an organic binder dispersible in an aqueous phase;
3 to 10% of a silicate-based agent;
0.5 to 3% of a hydrophobic agent which is a silicone derivative;
0.05 to 1% of polyvinyl alcohol;
0.1 to 1% of starch and/or a starch derivative; and
water to make up to 100%.
14. A method of preparing a jointing compound or plaster according to claim 1 , comprising mixing the constituents of the plaster in any order.
15. A method of producing a work, comprising juxtaposing plasterboards having a paper facing, filling a space between the boards with a filling plaster, laying a tape between the boards, covering the tape with the filling plaster, and covering the filling plaster with a finishing plaster, wherein a silicone content of the finishing plaster/silicone content of the facing weight ratio is between 3 and 10.
16. The method according to claim 15 , wherein the silicone content of the coating of the facing paper is between 0.1 and 1%.
17. The method according to claim 15 , wherein the same plaster is used as filling and finishing plaster.
18. The method according to claim 17 , wherein the plaster has a binding agent content such that the binder/silicate-based agent weight ratio is between 0.5 and 2.
19. The method according to claim 17 , wherein the plaster has a binding agent content such that the binder/hydrophobic agent weight ratio is between 1.5 and 10.
20. The method according to claim 17 , wherein the plaster used is a plaster comprising in percentages by weight with respect to the total weight of the plaster:
50 to 85% of a mineral filler;
1 to 20% of an organic binder dispersible in an aqueous phase;
1 to 15% of a silicate-based agent other than the mineral filler;
0.2 to 5% of a hydrophobic agent which is a silicone derivative;
0.05 to 5% of polyvinyl alcohol; and
water to make up to 100%.
21. The method according to claim 17 , wherein the plaster used is a plaster comprising in percentages by weight with respect to the total weight of the plaster:
50 to 70% of a mineral filler;
2 to 12% of an organic binder dispersible in an aqueous phase;
3 to 10% of a silicate-based agent;
0.5 to 3% of a hydrophobic agent which is a silicone derivative;
0.05 to 1% of polyvinyl alcohol;
0.1 to 1% of starch and/or a starch derivative; and
water to make up to 100%.
22. A method of producing a work, comprising juxtaposing plasterboards having a paper facing, filling a space between the boards with a filling plaster, laying a tape between the boards, covering the tape with the filling plaster, and covering the filling plaster with a finishing plaster, wherein the filling and finishing plaster is a plaster according to claim 1 .
23. A method of producing a work, comprising juxtaposing plasterboards having a paper facing, filling a space between the boards with a filling plaster, laying a tape between the boards, covering the tape with the filling plaster, and covering the filling plaster with a finishing plaster, wherein the filling and finishing plaster is a plaster according to claim 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/795,356 US20040168399A1 (en) | 2000-07-18 | 2004-03-09 | Method of producing a work using a jointing compound or plaster for construction elements |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0009393A FR2811978B1 (en) | 2000-07-18 | 2000-07-18 | JOINT COATING FOR A CONSTRUCTION ELEMENT, METHOD FOR PREPARING SAME AND METHOD FOR PRODUCING A STRUCTURE |
FR0009393 | 2000-07-18 | ||
PCT/FR2001/002269 WO2002006183A1 (en) | 2000-07-18 | 2001-07-12 | Pointing compound for structural element, method for preparing same and method for producing a structure |
US10/345,141 US7047701B2 (en) | 2000-07-18 | 2003-01-16 | Jointing compound or plaster for construction elements and its method of preparation |
US10/795,356 US20040168399A1 (en) | 2000-07-18 | 2004-03-09 | Method of producing a work using a jointing compound or plaster for construction elements |
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US10/345,141 Division US7047701B2 (en) | 2000-07-18 | 2003-01-16 | Jointing compound or plaster for construction elements and its method of preparation |
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US (2) | US7047701B2 (en) |
EP (1) | EP1303463B2 (en) |
JP (1) | JP2004504519A (en) |
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CN (1) | CN100395207C (en) |
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ES (1) | ES2295189T3 (en) |
FR (1) | FR2811978B1 (en) |
IL (1) | IL153610A0 (en) |
MX (1) | MXPA03000208A (en) |
NO (1) | NO20030240L (en) |
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UA (1) | UA75603C2 (en) |
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- 2001-07-12 CN CNB018125158A patent/CN100395207C/en not_active Expired - Fee Related
- 2001-07-12 IL IL15361001A patent/IL153610A0/en unknown
- 2001-07-12 EP EP01955413.8A patent/EP1303463B2/en not_active Expired - Lifetime
- 2001-07-12 PL PL359558A patent/PL204510B1/en unknown
- 2001-07-12 ES ES01955413T patent/ES2295189T3/en not_active Expired - Lifetime
- 2001-07-12 AU AU7758401A patent/AU7758401A/en active Pending
- 2001-07-12 DE DE60131748.3T patent/DE60131748T3/en not_active Expired - Lifetime
- 2001-07-12 RU RU2003104815/04A patent/RU2241726C2/en not_active IP Right Cessation
- 2001-07-12 CA CA2418308A patent/CA2418308C/en not_active Expired - Lifetime
- 2001-07-12 JP JP2002512090A patent/JP2004504519A/en active Pending
- 2001-07-12 WO PCT/FR2001/002269 patent/WO2002006183A1/en active IP Right Grant
- 2001-07-12 AT AT01955413T patent/ATE380167T1/en not_active IP Right Cessation
- 2001-07-12 BR BR0112994-5A patent/BR0112994A/en not_active Application Discontinuation
- 2001-07-13 AR ARP010103354A patent/AR028801A1/en unknown
- 2001-12-07 UA UA2003021408A patent/UA75603C2/en unknown
-
2003
- 2003-01-08 ZA ZA200300187A patent/ZA200300187B/en unknown
- 2003-01-16 US US10/345,141 patent/US7047701B2/en not_active Expired - Lifetime
- 2003-01-17 KR KR1020037000759A patent/KR100727585B1/en active IP Right Grant
- 2003-01-17 NO NO20030240A patent/NO20030240L/en not_active Application Discontinuation
-
2004
- 2004-03-09 US US10/795,356 patent/US20040168399A1/en not_active Abandoned
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AU2007200986B2 (en) * | 2006-03-07 | 2011-08-25 | Usg Boral Building Products Pty Limited | A plaster jointing compound |
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WO2009133316A3 (en) * | 2008-04-22 | 2010-02-25 | Lafarge Gypsum International | Finishing compound suitable for an acoustic support |
WO2009133316A2 (en) * | 2008-04-22 | 2009-11-05 | Lafarge Gypsum International | Finishing compound suitable for an acoustic support |
CN101959826A (en) * | 2008-04-22 | 2011-01-26 | 拉法基石膏国际公司 | Be applicable to the arrangement mixture of acoustics matrix |
US20110034608A1 (en) * | 2008-04-22 | 2011-02-10 | Lafarge Gypsum International | Finishing compound suitable for an acoustic support |
FR2930256A1 (en) * | 2008-04-22 | 2009-10-23 | Lafarge Platres Sa | FINISHING FINISH SUITABLE FOR ACOUSTIC SUPPORT |
US8227537B2 (en) | 2008-04-22 | 2012-07-24 | Lafarge Gypsum International | Finishing compound suitable for an acoustic support |
AU2009241972B2 (en) * | 2008-04-22 | 2014-02-27 | Holcim Technology Ltd | Finishing compound suitable for an acoustic support |
KR101612571B1 (en) | 2008-04-22 | 2016-04-14 | 라파즈 집생 인터내셔날 | Finishing compound suitable for an acoustic support |
KR101612572B1 (en) | 2008-04-22 | 2016-04-14 | 라파즈 집생 인터내셔날 | Finishing compound suitable for an acoustic support |
WO2016102031A1 (en) * | 2014-12-22 | 2016-06-30 | Knauf Gips Kg | Composition for a pasty filler material, pasty filler, and method for producing a pasty filler material |
ITUB20160758A1 (en) * | 2016-02-15 | 2017-08-15 | Cavalieri Luisa | Composition for the treatment of wall surfaces |
Also Published As
Publication number | Publication date |
---|---|
EP1303463B1 (en) | 2007-12-05 |
ZA200300187B (en) | 2003-08-04 |
EP1303463B2 (en) | 2016-05-04 |
ES2295189T3 (en) | 2008-04-16 |
DE60131748D1 (en) | 2008-01-17 |
IL153610A0 (en) | 2003-07-06 |
MXPA03000208A (en) | 2005-02-17 |
BR0112994A (en) | 2003-07-01 |
KR20030036616A (en) | 2003-05-09 |
US20030153651A1 (en) | 2003-08-14 |
RU2241726C2 (en) | 2004-12-10 |
CA2418308A1 (en) | 2002-01-24 |
CA2418308C (en) | 2011-06-07 |
CN100395207C (en) | 2008-06-18 |
FR2811978B1 (en) | 2002-10-11 |
US7047701B2 (en) | 2006-05-23 |
DE60131748T2 (en) | 2008-10-30 |
AU2001277584B2 (en) | 2005-09-01 |
PL204510B1 (en) | 2010-01-29 |
FR2811978A1 (en) | 2002-01-25 |
EP1303463A1 (en) | 2003-04-23 |
WO2002006183A1 (en) | 2002-01-24 |
KR100727585B1 (en) | 2007-06-14 |
CN1441753A (en) | 2003-09-10 |
ATE380167T1 (en) | 2007-12-15 |
JP2004504519A (en) | 2004-02-12 |
NO20030240L (en) | 2003-03-18 |
AR028801A1 (en) | 2003-05-21 |
NO20030240D0 (en) | 2003-01-17 |
DE60131748T3 (en) | 2016-09-15 |
UA75603C2 (en) | 2006-05-15 |
PL359558A1 (en) | 2004-08-23 |
AU7758401A (en) | 2002-01-30 |
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