CA2312950A1 - Multilayer foams - Google Patents

Multilayer foams Download PDF

Info

Publication number
CA2312950A1
CA2312950A1 CA002312950A CA2312950A CA2312950A1 CA 2312950 A1 CA2312950 A1 CA 2312950A1 CA 002312950 A CA002312950 A CA 002312950A CA 2312950 A CA2312950 A CA 2312950A CA 2312950 A1 CA2312950 A1 CA 2312950A1
Authority
CA
Canada
Prior art keywords
composition
foamed
layers
foaming
product
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
Application number
CA002312950A
Other languages
French (fr)
Other versions
CA2312950C (en
Inventor
Jeffrey John Mason
Chau Van Vo
Georges Eschenlauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Global Technologies LLC
Original Assignee
The Dow Chemical Company
Jeffrey John Mason
Chau Van Vo
Georges Eschenlauer
Dow Deutschland Inc.
Dow Global Technologies Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by The Dow Chemical Company, Jeffrey John Mason, Chau Van Vo, Georges Eschenlauer, Dow Deutschland Inc., Dow Global Technologies Inc. filed Critical The Dow Chemical Company
Publication of CA2312950A1 publication Critical patent/CA2312950A1/en
Application granted granted Critical
Publication of CA2312950C publication Critical patent/CA2312950C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/24—Making multilayered articles
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/468—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length in a plurality of parallel streams which unite during the foaming

Abstract

The present invention relates to foamed products and methods for producing them, comprising a plurality of coalesced extruded layers or layers of coalesced strands of a foamed thermoplastic composition having a low density, by (a) providing at least one foamable composition comprising at least one polymer or copolymer and a blowing agent formulation, (b) extruding the composition through a die having a plurality of orifices, (c) foaming the extruded composition at a foaming temperature which is above the glass-transition temperature or the melting temperature of the polymer composition, (d) maintaining the foaming product at an elevated temperature for a sufficient period of time to obtain adhesion between individual foam layers, and (e) allowing the foamed product to cool, characterized in that foamed product is obtained comprising a plurality of adherent foam layers, wherein at least one of these foam layers extends across the whole breadth of the foamed product.
CA002312950A 1997-12-08 1998-11-11 Multilayer foams Expired - Lifetime CA2312950C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97121595.9 1997-12-08
EP97121595A EP0922554B1 (en) 1997-12-08 1997-12-08 Multilayer foams, method of production and use
PCT/US1998/023813 WO1999029483A1 (en) 1997-12-08 1998-11-11 Multilayer foams

Publications (2)

Publication Number Publication Date
CA2312950A1 true CA2312950A1 (en) 1999-06-17
CA2312950C CA2312950C (en) 2007-09-25

Family

ID=8227766

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002312950A Expired - Lifetime CA2312950C (en) 1997-12-08 1998-11-11 Multilayer foams

Country Status (18)

Country Link
US (1) US6440241B1 (en)
EP (1) EP0922554B1 (en)
JP (1) JP2001525266A (en)
KR (1) KR20010032807A (en)
CN (1) CN1317118C (en)
AT (1) ATE243612T1 (en)
CA (1) CA2312950C (en)
DE (1) DE69723086T2 (en)
DK (1) DK0922554T3 (en)
ES (1) ES2196246T3 (en)
HU (1) HU225873B1 (en)
MX (1) MX240051B (en)
NO (1) NO318740B1 (en)
PT (1) PT922554E (en)
RU (1) RU2205754C2 (en)
TR (1) TR200001662T2 (en)
TW (1) TW592930B (en)
WO (1) WO1999029483A1 (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6428297B1 (en) * 1998-10-28 2002-08-06 Dart Container Corporation Apparatus for making a corrugation-free foam
AU2002239402A1 (en) 2000-12-21 2002-07-01 Dow Global Technologies Inc. Blowing agent composition and polymeric foam containing a normally-liquid hydrofluorocarbon and carbon dioxide
MX234823B (en) 2000-12-21 2006-03-13 Dow Global Technologies Inc Blow agent compositions containing hydrofluorocarbons and a low-boiling alcohol and/or low-boiling carbonyl compound.
JP4901026B2 (en) * 2001-06-29 2012-03-21 株式会社ジェイエスピー Manufacturing method of polystyrene resin extruded foam plate and polystyrene resin extruded foam plate
DE60144397D1 (en) * 2001-11-05 2011-05-19 Radio Frequency Systems Inc DIELECTRIC MICROCELLULAR FOAM FOR USE IN TRANSMISSION LINES
US6656797B2 (en) * 2001-12-31 2003-12-02 General Semiconductor, Inc. High voltage power MOSFET having a voltage sustaining region that includes doped columns formed by trench etching and ion implantation
US20050019549A1 (en) * 2003-07-24 2005-01-27 Tai Eva F. Recyclable reinforced polymer foam composition
US8568632B2 (en) 2003-11-26 2013-10-29 Owens Corning Intellectual Capital, Llc Method of forming thermoplastic foams using nano-particles to control cell morphology
US9359481B2 (en) 2003-11-26 2016-06-07 Owens Corning Intellectual Capital, Llc Thermoplastic foams and method of forming them using nano-graphite
EP1704047B1 (en) * 2004-01-06 2009-09-09 Dow Global Technologies Inc. Multilayer polymer sheets
US9187608B2 (en) 2005-09-08 2015-11-17 Owens Corning Intellectual Capital, Llc Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance
EP2136994B1 (en) * 2007-04-03 2018-08-22 Dow Global Technologies LLC Hot film lamination (vacuum assisted) for carpet backing applications
US7887909B2 (en) * 2007-07-26 2011-02-15 Sabic Innovative Plastics Ip B.V. Light transmissive foamed polymer sheet and methods for making the same
US8859091B2 (en) * 2008-11-20 2014-10-14 Sabic Global Technologies B.V. Colored diffusion sheets, methods of manufacture thereof and articles comprising the same
US9260577B2 (en) 2009-07-14 2016-02-16 Toray Plastics (America), Inc. Crosslinked polyolefin foam sheet with exceptional softness, haptics, moldability, thermal stability and shear strength
CN102470573B (en) * 2009-08-05 2014-11-05 陶氏环球技术有限责任公司 Thick dimensionally stable infrared absorbing foam
GB2474431B (en) * 2009-10-13 2012-10-31 Gurit Uk Ltd Production of extruded foam
BE1019203A4 (en) * 2010-02-25 2012-04-03 Nmc Sa PROCESS FOR MAKING SYNTHETIC FOAMED BOARDS
CN104487239A (en) 2012-05-22 2015-04-01 欧文斯科宁知识产权资产有限公司 Laminated foam product and methods for making laminated foam products
ES2632197T3 (en) 2012-07-17 2017-09-11 Basf Se Thermoplastic foam plates with a weld bead thickness from 30 to 200 micrometers
RU2561972C1 (en) * 2014-03-26 2015-09-10 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") Method to produce multi-layer foam plastic
KR20170072285A (en) 2014-10-23 2017-06-26 쓰리엠 이노베이티브 프로퍼티즈 캄파니 Shim-stack foaming die
KR20170071584A (en) * 2014-10-23 2017-06-23 쓰리엠 이노베이티브 프로퍼티즈 캄파니 Laterally-coalesced foam slab
RU2017144275A (en) 2015-05-19 2019-06-19 Басф Се PRODUCT CONTAINING TUBULAR PARTICLES
KR102219992B1 (en) * 2016-04-28 2021-02-25 네이쳐웍스 엘엘씨 Polymer foam insulation structure having a multi-layered sheet covering comprising a heat-resistant polymer layer and a polylactide resin layer
DE102016225335B4 (en) 2016-12-16 2020-02-06 Adidas Ag Sole for a shoe, method and device for the production thereof and shoe with such a sole
EP3456302B8 (en) * 2017-09-15 2020-10-28 Ontex BV Absorbent cores and absorbent articles having anisotropic foam structures
MX2020005325A (en) 2017-11-28 2020-08-13 Dow Global Technologies Llc Polyurethane-based insulation board.
RU2020119817A (en) 2017-11-28 2021-12-16 Дау Глоубл Текнолоджиз Ллк POLYURETHANE / POLYISOCYANURATE FOAM INSULATION PANEL REINFORCED WITH FIBERGLASS
US20200181351A1 (en) * 2018-12-06 2020-06-11 Nike, Inc. Methods of manufacturing articles utilizing foam particles
EP3911488A1 (en) * 2019-01-16 2021-11-24 Evonik Operations GmbH Foaming of blowing agent containing polymers through the use of microwaves
EP3711736A1 (en) * 2019-03-18 2020-09-23 Ontex BVBA Absorbent articles having an anisotropic foam acquisition layer
CN111978881A (en) * 2020-08-11 2020-11-24 湖北祥源新材科技股份有限公司 Foam buffering adhesive tape for electronic product and preparation method thereof

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159920A (en) 1965-06-24 1969-07-30 Monsanto Chemicals Extrusion of Resins.
GB1230978A (en) * 1967-12-08 1971-05-05
US3557265A (en) * 1967-12-29 1971-01-19 Dow Chemical Co Method of extruding laminates
DE1930987A1 (en) 1969-06-19 1970-12-23 Barmag Barmer Maschf Extrusion tool for the production of multilayer blown films
CA931720A (en) * 1969-08-07 1973-08-14 Hayashi Motoshige Synthetic wood and a method for preparation thereof
US3949031A (en) 1970-08-19 1976-04-06 Fmc Corporation Method for making cellular articles
DE2224460A1 (en) * 1972-05-19 1973-11-29 Hoechst Ag METHOD AND DEVICE FOR THE PRODUCTION OF PROFILES FROM FOAMED THERMOPLASTICS
JPS5050473A (en) 1973-09-05 1975-05-06
JPS5731982B2 (en) 1974-01-31 1982-07-08
GB1497701A (en) 1974-06-24 1978-01-12 Dukess J Method of and apparatus for making sandwich-like plastics elements
DE2507274A1 (en) 1975-02-20 1976-09-09 Bayer Ag LAMINATE MADE OF POLYETHYLENE FOAM WITH ANISOTROPIC PORE STRUCTURE
US4206165A (en) 1976-03-26 1980-06-03 Tri-Seal International, Inc. Method of co-extrusion with foam core
US4192839A (en) * 1978-01-03 1980-03-11 Sekisui Kaseihin Kogyo Kabushiki Kaisha Process for producing expanded article of thermoplastic resin
CA1100726A (en) 1978-06-09 1981-05-12 Joseph Dukess Method of co-extrusion with foam core
US4548775A (en) 1984-01-05 1985-10-22 Sekisui Kaseihin Kogyo Kabushiki Kaisha Method for production of thermoplastic resin foams
FR2580542B1 (en) 1985-04-23 1987-07-17 Atochem PROCESS FOR EXTRUDING EXPANDABLE PLASTICS
LU86659A1 (en) 1985-11-19 1987-05-04 Marquet & Cie Noel AIR AND IMPACT SOUND INSULATION PLATE IN FOAM PLASTIC FOR FLOATING SCREEDS OR FLOATING WOODEN FLOORS
US4773448A (en) 1987-02-26 1988-09-27 Francis Norman L Freeze-resistant plastic pipe and method for its manufacture
US4919864A (en) * 1988-02-26 1990-04-24 Packaging Industries Group, Inc. Method for making multicolored foam
IT1229290B (en) 1989-04-28 1991-08-08 Brabor Srl EXTRUSION HEAD FOR EXPANDED MATERIAL, IN PARTICULAR FOR EXPANDED MATERIAL BASED ON POLYVINYLCHLORIDE.
IT1230130B (en) 1989-04-28 1991-10-14 Brabor Srl EXTRUSION HEAD FOR EXPANDED MATERIAL, IN PARTICULAR FOR EXPANDED MATERIAL BASED ON POLYVINYL CHLORIDE
JPH0755531B2 (en) * 1990-04-12 1995-06-14 積水化成品工業株式会社 Method for producing thermoplastic polyester resin foam
US5215691A (en) * 1990-09-05 1993-06-01 The Dow Chemical Company Method of forming a coextruded foam composite
HU213639B (en) * 1991-03-25 1997-08-28 Dow Chemical Co Process for making nondistorted polyolefin foam structure
JPH07112480A (en) 1993-10-19 1995-05-02 Showa Denko Kk Resin molded product having foam
JPH08183082A (en) * 1994-12-28 1996-07-16 Sekisui Plastics Co Ltd Thermoplastic resin foam body

Also Published As

Publication number Publication date
EP0922554A1 (en) 1999-06-16
JP2001525266A (en) 2001-12-11
DK0922554T3 (en) 2003-10-20
DE69723086T2 (en) 2003-12-24
MXPA00005644A (en) 2001-02-01
MX240051B (en) 2006-09-05
CN1317118C (en) 2007-05-23
HUP0004435A2 (en) 2001-04-28
RU2205754C2 (en) 2003-06-10
PT922554E (en) 2003-11-28
ES2196246T3 (en) 2003-12-16
CN1281401A (en) 2001-01-24
HU225873B1 (en) 2007-11-28
NO20002905D0 (en) 2000-06-07
US6440241B1 (en) 2002-08-27
ATE243612T1 (en) 2003-07-15
TR200001662T2 (en) 2000-10-23
HUP0004435A3 (en) 2006-04-28
DE69723086D1 (en) 2003-07-31
CA2312950C (en) 2007-09-25
EP0922554B1 (en) 2003-06-25
NO318740B1 (en) 2005-05-02
TW592930B (en) 2004-06-21
WO1999029483A1 (en) 1999-06-17
KR20010032807A (en) 2001-04-25
NO20002905L (en) 2000-08-07
US20020026977A1 (en) 2002-03-07

Similar Documents

Publication Publication Date Title
CA2312950A1 (en) Multilayer foams
CA2050708C (en) Coextruded foam composite
US4824720A (en) Coalesced polyolefin foam having exceptional cushioning properties
EP0055437B1 (en) A continuous process for the production of polystyrene foamed articles
US5206082A (en) Nondistorted polyethylene foam structures and process for making
US4801484A (en) Highly loaded coalesced foam
KR20010032537A (en) Blow-molded foam and process for producing the same
HUP0100074A2 (en) Low density strand foams
RU2000118230A (en) MULTILAYER FOAM
KR930700590A (en) Polypropylene foam sheet
KR20110053927A (en) Method of producing composite sheet having polyolefin foam layer
CA2240774A1 (en) Thermoplastic foam and process for producing it using carbon dioxide
EP0279668B1 (en) Foam structure of coalesced foam strands of profiles
KR100195552B1 (en) Nondistorted polyethylene foam structures and process for making
JP4198207B2 (en) Molded article comprising thermoplastic synthetic foam, its production method and use thereof
US3966373A (en) Apparatus for the continuous extrusion of small cross-section thermoplastic foam profiles
GB1439438A (en) Laminates of foamed polymeric material
JP2001179805A (en) Method for producing foamed multi-layer polyethylene resin molding
DE10105591A1 (en) Production of composite material, e.g. for interior vehicle parts, involves extruding uncrosslinked, high-melt strength polypropylene foam through a sheet die and laminating with thermoplastic polyolefin elastomer
JP3459177B2 (en) Method for producing polypropylene resin foam
JPS6011330A (en) Manufacture of hollow molded item with foamed layer
JP2005081796A (en) Propylene-based resin foamed sheet and container
JPH0755531B2 (en) Method for producing thermoplastic polyester resin foam
JPH02196618A (en) Production of resin foamed sheet
JP2001026079A (en) Laminate

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20181113