DE69007790D1 - Verfahren zur herstellung geschäumter gegenstände mit bereichen verschiedener härte. - Google Patents

Verfahren zur herstellung geschäumter gegenstände mit bereichen verschiedener härte.

Info

Publication number
DE69007790D1
DE69007790D1 DE90907275T DE69007790T DE69007790D1 DE 69007790 D1 DE69007790 D1 DE 69007790D1 DE 90907275 T DE90907275 T DE 90907275T DE 69007790 T DE69007790 T DE 69007790T DE 69007790 D1 DE69007790 D1 DE 69007790D1
Authority
DE
Germany
Prior art keywords
areas
different hardness
producing foamed
foamed items
items
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.)
Expired - Fee Related
Application number
DE90907275T
Other languages
English (en)
Other versions
DE69007790T2 (de
Inventor
Michael Brown
Werner Lidy
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.)
Polyol International BV
Original Assignee
Polyol International BV
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 Polyol International BV filed Critical Polyol International BV
Application granted granted Critical
Publication of DE69007790D1 publication Critical patent/DE69007790D1/de
Publication of DE69007790T2 publication Critical patent/DE69007790T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
    • B29C44/0476—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other by pouring more than one composition into an open mould
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
DE69007790T 1989-05-18 1990-05-09 Verfahren zur herstellung geschäumter gegenstände mit bereichen verschiedener härte. Expired - Fee Related DE69007790T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898911457A GB8911457D0 (en) 1989-05-18 1989-05-18 Process for preparing multihardness foam articles
PCT/GB1990/000719 WO1990014215A1 (en) 1989-05-18 1990-05-09 Process for preparing multihardness foam articles

Publications (2)

Publication Number Publication Date
DE69007790D1 true DE69007790D1 (de) 1994-05-05
DE69007790T2 DE69007790T2 (de) 1994-07-07

Family

ID=10656976

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69007790T Expired - Fee Related DE69007790T2 (de) 1989-05-18 1990-05-09 Verfahren zur herstellung geschäumter gegenstände mit bereichen verschiedener härte.

Country Status (9)

Country Link
US (1) US5273695A (de)
EP (1) EP0472574B1 (de)
JP (1) JPH04505295A (de)
BR (1) BR9007368A (de)
CA (1) CA2016361A1 (de)
DE (1) DE69007790T2 (de)
ES (1) ES2051015T3 (de)
GB (1) GB8911457D0 (de)
WO (1) WO1990014215A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5604267A (en) * 1995-08-30 1997-02-18 Arco Chemical Technology, L.P. Process for producing froth polyurethane foam
US5786394A (en) * 1996-12-04 1998-07-28 Lear Corporation Durable, energy-absorptive EPP/PUR structural composites
GB9625594D0 (en) * 1996-12-10 1997-01-29 Polyol Int Bv Process for manufacturing multilayered foam articles
US6050579A (en) * 1998-04-21 2000-04-18 Aeroquip Corporation Automotive running board
US6444303B1 (en) 1999-11-01 2002-09-03 Lear Corporation Fabric-less part and method of making same
US6635688B2 (en) * 2000-06-28 2003-10-21 World Properties, Inc. Composite polyurethane foams and method of manufacture thereof
ES2367611B1 (es) * 2009-05-07 2012-09-13 Centro Tecnológico De Grupo Copo, S.L.U. Procedimiento de obtención de una pieza espumada , dispositivo para la puesta en práctica del mismo y pieza obtenida.
MX2015006236A (es) * 2012-11-23 2015-08-14 Bayer Materialscience Ag Procedimiento de produccion de espumas de pu moldeadas flexibles.
JP6971519B2 (ja) * 2016-10-28 2021-11-24 コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag ポリウレタンフォーム成形品の製造方法
WO2018077914A1 (en) 2016-10-28 2018-05-03 Covestro Deutschland Ag Method for producing a polyurethane foam molded article
US11571843B2 (en) * 2017-05-16 2023-02-07 Archem Inc. Foam molding mold and method for manufacturing foam molding body

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1194660A (en) * 1981-06-27 1985-10-08 Rudolf J. Tenhagen Process for making polyurethane foam
GB2161375A (en) * 1984-07-09 1986-01-15 Milsco Mfg Co Composite foam-seat cushion and method of preparation
DE3506244C1 (de) * 1985-02-22 1986-08-14 Grammer Sitzsysteme GmbH, 8450 Amberg Vorrichtung zur Herstellung von Gegenstaenden,insbesondere von Sitz- oder Rueckenlehnenpolstern aus Kunststoffschaum
JPS61290013A (ja) * 1985-06-19 1986-12-20 Honda Motor Co Ltd 異硬度層を有するシ−トクツシヨンパツドの製造方法
JPS6266911A (ja) * 1985-09-19 1987-03-26 Tokyo Seat Kk 複層発泡成形品の製造方法
JPS62105612A (ja) * 1985-11-05 1987-05-16 Bridgestone Corp 積層構造を有する発泡体製品の製造方法
CA1309220C (en) * 1985-12-25 1992-10-27 Tetsuo Kita Process for producing laminated resin foam and mold therefor
FR2598967B1 (fr) * 1986-05-23 1988-11-25 Roth Sa Freres Procede de fabrication de matelassures moulees en mousse de polyurethane comportant plusieurs zones de souplesses differentes et matelassures ainsi realisees
JPS6313718A (ja) * 1986-07-04 1988-01-21 Nanba Press Kogyo Kk 多層異硬度発泡体の製造方法

Also Published As

Publication number Publication date
BR9007368A (pt) 1992-04-28
US5273695A (en) 1993-12-28
GB8911457D0 (en) 1989-07-05
ES2051015T3 (es) 1994-06-01
EP0472574B1 (de) 1994-03-30
DE69007790T2 (de) 1994-07-07
WO1990014215A1 (en) 1990-11-29
CA2016361A1 (en) 1990-11-18
EP0472574A1 (de) 1992-03-04
JPH04505295A (ja) 1992-09-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee