CA2143291A1 - Method for Preparing Biodegradable Films from Plant-Based Raw Materials - Google Patents
Method for Preparing Biodegradable Films from Plant-Based Raw MaterialsInfo
- Publication number
- CA2143291A1 CA2143291A1 CA 2143291 CA2143291A CA2143291A1 CA 2143291 A1 CA2143291 A1 CA 2143291A1 CA 2143291 CA2143291 CA 2143291 CA 2143291 A CA2143291 A CA 2143291A CA 2143291 A1 CA2143291 A1 CA 2143291A1
- Authority
- CA
- Canada
- Prior art keywords
- plant
- raw materials
- based raw
- films
- preparing biodegradable
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
- B29C48/37—Gear pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/39—Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/55—Screws having reverse-feeding elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/82—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/834—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/762—Vapour stripping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2007/00—Use of natural rubber as moulding material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
Abstract
There is provided a method for preparing biodegradable films from plant-based raw materials in the form of carbohydrates which method is continuous and carried out in one step. In the process the plant-based raw materials are modified and plastified and the films are prepared without interruption and in one step. The advantages of the invention reside in reduced shear stress of the starch molecules and thus in the improved properties of the films as well as in the cost-efficient, time-, energy- and space-saving manufacture.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4228016.8 | 1992-08-24 | ||
DE4228016A DE4228016C1 (en) | 1992-08-24 | 1992-08-24 | Process for producing biodegradable films from vegetable raw materials |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2143291A1 true CA2143291A1 (en) | 1994-03-03 |
CA2143291C CA2143291C (en) | 1999-02-02 |
Family
ID=6466254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002143291A Expired - Lifetime CA2143291C (en) | 1992-08-24 | 1993-08-24 | Method for preparing biodegradable films from plant-based raw materials |
Country Status (19)
Country | Link |
---|---|
US (1) | US5525281A (en) |
EP (1) | EP0656032B1 (en) |
JP (1) | JP3398731B2 (en) |
CN (1) | CN1051273C (en) |
AT (1) | ATE178625T1 (en) |
AU (1) | AU677964B2 (en) |
BR (1) | BR9306957A (en) |
CA (1) | CA2143291C (en) |
CZ (1) | CZ48395A3 (en) |
DE (2) | DE4228016C1 (en) |
DK (1) | DK0656032T3 (en) |
ES (1) | ES2131117T3 (en) |
FI (1) | FI950835A0 (en) |
GR (1) | GR3030189T3 (en) |
MY (1) | MY109052A (en) |
NO (1) | NO950679D0 (en) |
PL (1) | PL307610A1 (en) |
TW (1) | TW303378B (en) |
WO (1) | WO1994004600A1 (en) |
Families Citing this family (56)
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US5709827A (en) | 1992-08-11 | 1998-01-20 | E. Khashoggi Industries | Methods for manufacturing articles having a starch-bound cellular matrix |
US5783126A (en) | 1992-08-11 | 1998-07-21 | E. Khashoggi Industries | Method for manufacturing articles having inorganically filled, starch-bound cellular matrix |
US5810961A (en) | 1993-11-19 | 1998-09-22 | E. Khashoggi Industries, Llc | Methods for manufacturing molded sheets having a high starch content |
US5662731A (en) | 1992-08-11 | 1997-09-02 | E. Khashoggi Industries | Compositions for manufacturing fiber-reinforced, starch-bound articles having a foamed cellular matrix |
US5679145A (en) | 1992-08-11 | 1997-10-21 | E. Khashoggi Industries | Starch-based compositions having uniformly dispersed fibers used to manufacture high strength articles having a fiber-reinforced, starch-bound cellular matrix |
US5844023A (en) | 1992-11-06 | 1998-12-01 | Bio-Tec Biologische Naturverpackungen Gmbh | Biologically degradable polymer mixture |
DE4317696C1 (en) * | 1993-05-27 | 1994-12-22 | Biotec Biolog Naturverpack | Process for the production of granular, thermoplastic starch |
DE4317697C2 (en) * | 1993-05-27 | 1998-06-04 | Biotec Biolog Naturverpack | Building insulation element made from renewable raw materials and process for its production |
US6083586A (en) | 1993-11-19 | 2000-07-04 | E. Khashoggi Industries, Llc | Sheets having a starch-based binding matrix |
US5736209A (en) | 1993-11-19 | 1998-04-07 | E. Kashoggi, Industries, Llc | Compositions having a high ungelatinized starch content and sheets molded therefrom |
US5705203A (en) | 1994-02-07 | 1998-01-06 | E. Khashoggi Industries | Systems for molding articles which include a hinged starch-bound cellular matrix |
US5843544A (en) | 1994-02-07 | 1998-12-01 | E. Khashoggi Industries | Articles which include a hinged starch-bound cellular matrix |
US5776388A (en) | 1994-02-07 | 1998-07-07 | E. Khashoggi Industries, Llc | Methods for molding articles which include a hinged starch-bound cellular matrix |
DE4429269A1 (en) * | 1994-08-18 | 1996-02-22 | K & S Bio Pack Entwicklung | Process for the production of articles from thermoplastic amylose, molding compound for carrying out the process and molded part |
DE4446054A1 (en) * | 1994-12-22 | 1996-06-27 | Biotec Biolog Naturverpack | Biodegradable textile contains thermoplastic starch |
DE19512252C2 (en) * | 1995-03-31 | 2000-05-31 | Fraunhofer Ges Forschung | Process for the production of films from starch and films produced by this process |
ES2201173T3 (en) * | 1995-04-07 | 2004-03-16 | BIO-TEC BIOLOGISCHE NATURVERPACKUNGEN GMBH & CO. KG | BIOLOGICALLY DEGRADABLE POLYMER MIX. |
DE19513808C2 (en) * | 1995-04-12 | 1998-05-28 | Natura Verpackungs Gmbh | Process for the production of woven or knitted webs for the production of biodegradable sacks, bags, nets or the like. |
US20010048176A1 (en) | 1995-04-14 | 2001-12-06 | Hans G. Franke | Resilient biodegradable packaging materials |
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US6168857B1 (en) | 1996-04-09 | 2001-01-02 | E. Khashoggi Industries, Llc | Compositions and methods for manufacturing starch-based compositions |
DE19624641A1 (en) | 1996-06-20 | 1998-01-08 | Biotec Biolog Naturverpack | Biodegradable material consisting essentially of or based on thermoplastic starch |
DE19633476A1 (en) * | 1996-08-20 | 1998-02-26 | Buna Sow Leuna Olefinverb Gmbh | Biodegradable thermoplastically deformable materials for food packaging |
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DE19750846C1 (en) | 1997-11-17 | 2000-01-27 | Biop Biopolymer Gmbh | Process for the production of a component for the production of polymer mixtures based on starch |
US6231970B1 (en) | 2000-01-11 | 2001-05-15 | E. Khashoggi Industries, Llc | Thermoplastic starch compositions incorporating a particulate filler component |
US6573340B1 (en) | 2000-08-23 | 2003-06-03 | Biotec Biologische Naturverpackungen Gmbh & Co. Kg | Biodegradable polymer films and sheets suitable for use as laminate coatings as well as wraps and other packaging materials |
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EP1229075B2 (en) | 2001-02-01 | 2011-08-31 | BIOP Biopolymer Technologies AG | Process for producing a thermoplastic polymer composite based on starch containing integrated nanoscopic particles |
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US4021388A (en) * | 1972-05-18 | 1977-05-03 | Coloroll Limited | Synthetic resin sheet material |
JPS5086557A (en) * | 1973-12-04 | 1975-07-11 | ||
US4076846A (en) * | 1974-11-22 | 1978-02-28 | Sumitomo Bakelite Company Limited | Protein-starch binary molding composition and shaped articles obtained therefor |
JPS5822080B2 (en) * | 1979-06-13 | 1983-05-06 | 住友ベークライト株式会社 | Manufacturing method of film/sheet cleaning agent |
CH669201A5 (en) * | 1986-05-05 | 1989-02-28 | Warner Lambert Co | AT ROOM TEMPERATURES FIXED AND FREE-FLOWING BASIC COMPOSITION FOR PRINTING. |
EP0252270B1 (en) * | 1986-06-10 | 1989-11-08 | Werner & Pfleiderer GmbH | Process and device for the one step manufacture of a half ready product especially of a food product from starch containing raw material |
GB2208651B (en) * | 1987-08-18 | 1991-05-08 | Warner Lambert Co | Shaped articles made from pre-processed starch |
US4965081A (en) * | 1988-11-01 | 1990-10-23 | Haarmann & Reimer Corporation | Dry mix suitable for the preparation of a puffable food product, processes for the use thereof, and the puffable and/or puffed foods products so produced |
IE66735B1 (en) * | 1988-11-03 | 1996-02-07 | Biotec Biolog Naturverpack | Thermoplastically workable starch and a method for the manufacture thereof |
IL93620A0 (en) * | 1989-03-09 | 1990-12-23 | Butterfly Srl | Biodegradable articles based on starch and process for producing them |
AU627589B2 (en) * | 1989-06-01 | 1992-08-27 | Penford Australia Limited | Starch films based on high amylose starch |
FI894735A (en) * | 1989-10-05 | 1991-04-06 | Biodata Oy | BIOLOGISKT NEDBRYTBAR KOMBINATIONSFILM OCH FOERFARANDE FOER ATT FRAMSTAELLA EN SAODAN. |
IT1240503B (en) * | 1990-07-25 | 1993-12-17 | Butterfly Srl | STARCH POLYMERIC MIXTURE PARTICULARLY FOR THE PRODUCTION OF FILMS AND SIMILAR AND PROCEDURE FOR ITS PRODUCTION. |
GB9017300D0 (en) * | 1990-08-07 | 1990-09-19 | Cerestar Holding Bv | Starch treatment process |
CH680925A5 (en) * | 1990-09-03 | 1992-12-15 | Buehler Ag | |
US5412005A (en) * | 1991-05-03 | 1995-05-02 | Novamont S.P.A. | Biodegradable polymeric compositions based on starch and thermoplastic polymers |
DE4117628C3 (en) * | 1991-05-29 | 1999-02-11 | Inventa Ag | Process and device for producing starch melt and products obtainable by this process |
US5254607A (en) * | 1991-06-26 | 1993-10-19 | Tredegar Industries, Inc. | Biodegradable, liquid impervious films |
AU2578192A (en) * | 1991-09-19 | 1993-04-27 | David Aung | Biodegradable packaging film |
US5281276A (en) * | 1992-03-25 | 1994-01-25 | National Starch And Chemical Investment Holding Corporation | Process for making amylase resistant starch from high amylose starch |
US5409542A (en) * | 1992-03-25 | 1995-04-25 | National Starch And Chemical Investment Holding Corporation | Amylase resistant starch product form debranched high amylose starch |
-
1992
- 1992-08-24 DE DE4228016A patent/DE4228016C1/en not_active Expired - Fee Related
-
1993
- 1993-08-24 AU AU49521/93A patent/AU677964B2/en not_active Ceased
- 1993-08-24 WO PCT/EP1993/002270 patent/WO1994004600A1/en active IP Right Grant
- 1993-08-24 BR BR9306957A patent/BR9306957A/en not_active Application Discontinuation
- 1993-08-24 PL PL93307610A patent/PL307610A1/en unknown
- 1993-08-24 AT AT93919153T patent/ATE178625T1/en active
- 1993-08-24 EP EP93919153A patent/EP0656032B1/en not_active Expired - Lifetime
- 1993-08-24 CZ CZ95483A patent/CZ48395A3/en unknown
- 1993-08-24 CA CA002143291A patent/CA2143291C/en not_active Expired - Lifetime
- 1993-08-24 MY MYPI93001692A patent/MY109052A/en unknown
- 1993-08-24 CN CN93109726A patent/CN1051273C/en not_active Expired - Lifetime
- 1993-08-24 DE DE59309503T patent/DE59309503D1/en not_active Expired - Lifetime
- 1993-08-24 DK DK93919153T patent/DK0656032T3/en active
- 1993-08-24 JP JP50592094A patent/JP3398731B2/en not_active Expired - Lifetime
- 1993-08-24 ES ES93919153T patent/ES2131117T3/en not_active Expired - Lifetime
- 1993-08-24 US US08/392,753 patent/US5525281A/en not_active Expired - Lifetime
- 1993-08-27 TW TW082106975A patent/TW303378B/zh active
-
1995
- 1995-02-23 FI FI950835A patent/FI950835A0/en not_active Application Discontinuation
- 1995-02-23 NO NO950679A patent/NO950679D0/en unknown
-
1999
- 1999-05-11 GR GR990401277T patent/GR3030189T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO950679L (en) | 1995-02-23 |
CA2143291C (en) | 1999-02-02 |
DE4228016C1 (en) | 1994-03-31 |
DK0656032T3 (en) | 1999-10-18 |
GR3030189T3 (en) | 1999-08-31 |
US5525281A (en) | 1996-06-11 |
WO1994004600A1 (en) | 1994-03-03 |
JPH08500380A (en) | 1996-01-16 |
AU677964B2 (en) | 1997-05-15 |
JP3398731B2 (en) | 2003-04-21 |
MY109052A (en) | 1996-11-30 |
EP0656032A1 (en) | 1995-06-07 |
CZ48395A3 (en) | 1995-09-13 |
CN1084117A (en) | 1994-03-23 |
FI950835A (en) | 1995-02-23 |
ES2131117T3 (en) | 1999-07-16 |
ATE178625T1 (en) | 1999-04-15 |
PL307610A1 (en) | 1995-06-12 |
TW303378B (en) | 1997-04-21 |
BR9306957A (en) | 1999-01-12 |
EP0656032B1 (en) | 1999-04-07 |
NO950679D0 (en) | 1995-02-23 |
DE59309503D1 (en) | 1999-05-12 |
CN1051273C (en) | 2000-04-12 |
FI950835A0 (en) | 1995-02-23 |
AU4952193A (en) | 1994-03-15 |
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