DE69713799T2 - Verfahren zum herstellen von mehrlagigen schaumstoffgegenständen - Google Patents

Verfahren zum herstellen von mehrlagigen schaumstoffgegenständen

Info

Publication number
DE69713799T2
DE69713799T2 DE69713799T DE69713799T DE69713799T2 DE 69713799 T2 DE69713799 T2 DE 69713799T2 DE 69713799 T DE69713799 T DE 69713799T DE 69713799 T DE69713799 T DE 69713799T DE 69713799 T2 DE69713799 T2 DE 69713799T2
Authority
DE
Germany
Prior art keywords
producing multi
layer foamed
foamed objects
objects
layer
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
DE69713799T
Other languages
English (en)
Other versions
DE69713799D1 (de
Inventor
Maria Casati
J Brown
Patrice Bocquel
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 Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of DE69713799D1 publication Critical patent/DE69713799D1/de
Publication of DE69713799T2 publication Critical patent/DE69713799T2/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
    • 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
    • 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
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/388—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length into moving moulds
DE69713799T 1996-12-10 1997-12-09 Verfahren zum herstellen von mehrlagigen schaumstoffgegenständen Expired - Fee Related DE69713799T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9625594.8A GB9625594D0 (en) 1996-12-10 1996-12-10 Process for manufacturing multilayered foam articles
PCT/GB1997/003395 WO1998025748A1 (en) 1996-12-10 1997-12-09 Process for manufacturing multilayered foam articles

Publications (2)

Publication Number Publication Date
DE69713799D1 DE69713799D1 (de) 2002-08-08
DE69713799T2 true DE69713799T2 (de) 2002-10-17

Family

ID=10804197

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69713799T Expired - Fee Related DE69713799T2 (de) 1996-12-10 1997-12-09 Verfahren zum herstellen von mehrlagigen schaumstoffgegenständen

Country Status (17)

Country Link
US (1) US6358445B1 (de)
EP (1) EP0946346B1 (de)
JP (1) JP2001505834A (de)
KR (1) KR20000069411A (de)
CN (1) CN1239914A (de)
AR (1) AR010750A1 (de)
AT (1) ATE219995T1 (de)
AU (1) AU726439B2 (de)
BR (1) BR9713905A (de)
CA (1) CA2273046A1 (de)
DE (1) DE69713799T2 (de)
ES (1) ES2175490T3 (de)
GB (1) GB9625594D0 (de)
TR (1) TR199901297T2 (de)
TW (1) TW376363B (de)
WO (1) WO1998025748A1 (de)
ZA (1) ZA9710997B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001032392A1 (en) * 1999-10-29 2001-05-10 The Dow Chemical Company Process for manufacturing multilayered foam articles, and thus produced articles
US6635688B2 (en) * 2000-06-28 2003-10-21 World Properties, Inc. Composite polyurethane foams and method of manufacture thereof
FR2818187B1 (fr) * 2000-12-20 2003-08-15 Cera Procede de fabrication d'un element de siege et element de siege ainsi fabrique
US6787078B2 (en) 2001-06-15 2004-09-07 Dow Global Technologies Inc. Process for producing a multi-layered foam article and articles produced therefrom
US20130125313A1 (en) * 2010-07-13 2013-05-23 Ryoko Yamasaki System And Method Of Forming Variable Density Seating Materials
US10011058B2 (en) * 2011-11-28 2018-07-03 Ford Global Technologies, Llc Dual firmness head restraint
DE102013020488A1 (de) * 2013-12-11 2015-06-11 Heyform Bramsche Gmbh Verfahren zum Herstellen eines Sandwich-Verbundbauteils
WO2018077914A1 (en) 2016-10-28 2018-05-03 Covestro Deutschland Ag Method for producing a polyurethane foam molded article
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
IT201700019731A1 (it) * 2017-02-22 2018-08-22 Sapa S R L Metodo multifase di produzione di una cover composita insonorizzata per motori a combustione interna e prodotto così ottenuto.
WO2020102871A1 (pt) * 2018-11-22 2020-05-28 Formtap Interni Sistemas Automotivos S/A Aperfeiçoamento introduzido em processo de obtenção de compósitos termo estruturais
CN113754852A (zh) 2020-06-05 2021-12-07 科思创德国股份有限公司 制备硬质聚氨酯泡沫的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073839A (en) * 1976-04-19 1978-02-14 The Goodyear Tire & Rubber Company Method of zone pouring foam products
US4190697A (en) * 1979-01-15 1980-02-26 Milsco Manufacturing Company Multidensity foam article and method of preparation
US4405681A (en) * 1983-01-20 1983-09-20 Milsco Manufacturing Company Foam article and method of preparation
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
DE3638205A1 (de) * 1986-11-08 1988-05-11 Bayer Ag Verfahren zum herstellen von formteilen, insbesondere polstern, aus mindestens zwei schaumstoffe, insbesondere polyurethan-schaumstoffe, unterschiedlicher elastizitaet bzw. haerte bildenden, fliessfaehigen reaktionsgemischen und anwendung dieses verfahrens fuer die herstellung von fahrzeugsitzpolstern mit seitlichen wangen
DE3727129A1 (de) * 1987-08-14 1989-02-23 Bayer Ag Verfahren zum herstellen von schaumstoffpolstern aus mindestens zwei schaumstoffe, insbesondere polyurethan-schaumstoffe, unterschiedlicher elastizitaet bzw. haerte bildenden, fliessfaehigen, entsprechend unterschiedlichen reaktionsgemischen
DE3727131A1 (de) * 1987-08-14 1989-02-23 Bayer Ag Verfahren zum herstellen von schaumstoffpolstern aus mindestens zwei schaumstoffe, insbesondere polyurethan-schaumstoffe, unterschiedlicher elastizitaet bzw. haerte bildenden, fliessfaehigen, entsprechend unterschiedlichen reaktionsgemischen
GB8911457D0 (en) * 1989-05-18 1989-07-05 Bp Chem Int Ltd Process for preparing multihardness foam articles
GB2233926A (en) * 1989-06-29 1991-01-23 Bp Chem Int Ltd Process for producing multihardness foamed articles

Also Published As

Publication number Publication date
GB9625594D0 (en) 1997-01-29
TW376363B (en) 1999-12-11
ATE219995T1 (de) 2002-07-15
CN1239914A (zh) 1999-12-29
KR20000069411A (ko) 2000-11-25
TR199901297T2 (xx) 2000-01-21
AU726439B2 (en) 2000-11-09
AR010750A1 (es) 2000-07-12
BR9713905A (pt) 2000-02-29
CA2273046A1 (en) 1998-06-18
AU7846198A (en) 1998-07-03
WO1998025748A1 (en) 1998-06-18
ES2175490T3 (es) 2002-11-16
JP2001505834A (ja) 2001-05-08
EP0946346A1 (de) 1999-10-06
US6358445B1 (en) 2002-03-19
ZA9710997B (en) 1999-06-08
EP0946346B1 (de) 2002-07-03
DE69713799D1 (de) 2002-08-08

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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