GB2197659B - Process for preparing polyurethane foams having zones of differing hardness - Google Patents

Process for preparing polyurethane foams having zones of differing hardness

Info

Publication number
GB2197659B
GB2197659B GB8726372A GB8726372A GB2197659B GB 2197659 B GB2197659 B GB 2197659B GB 8726372 A GB8726372 A GB 8726372A GB 8726372 A GB8726372 A GB 8726372A GB 2197659 B GB2197659 B GB 2197659B
Authority
GB
United Kingdom
Prior art keywords
zones
polyurethane foams
preparing polyurethane
differing hardness
differing
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 - Lifetime
Application number
GB8726372A
Other versions
GB2197659A (en
GB8726372D0 (en
Inventor
Werner August 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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals Ltd
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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Publication of GB8726372D0 publication Critical patent/GB8726372D0/en
Publication of GB2197659A publication Critical patent/GB2197659A/en
Application granted granted Critical
Publication of GB2197659B publication Critical patent/GB2197659B/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
    • B29C44/02—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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/18—Seat parts having foamed material included in cushioning part
    • 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
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
GB8726372A 1986-11-20 1987-11-11 Process for preparing polyurethane foams having zones of differing hardness Expired - Lifetime GB2197659B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868627815A GB8627815D0 (en) 1986-11-20 1986-11-20 Preparing polyurethane foams

Publications (3)

Publication Number Publication Date
GB8726372D0 GB8726372D0 (en) 1987-12-16
GB2197659A GB2197659A (en) 1988-05-25
GB2197659B true GB2197659B (en) 1990-01-10

Family

ID=10607679

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868627815A Pending GB8627815D0 (en) 1986-11-20 1986-11-20 Preparing polyurethane foams
GB8726372A Expired - Lifetime GB2197659B (en) 1986-11-20 1987-11-11 Process for preparing polyurethane foams having zones of differing hardness

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868627815A Pending GB8627815D0 (en) 1986-11-20 1986-11-20 Preparing polyurethane foams

Country Status (11)

Country Link
JP (1) JPH0189111U (en)
AU (1) AU589821B2 (en)
BE (1) BE1001195A3 (en)
DE (1) DE3739249A1 (en)
ES (1) ES2005460A6 (en)
FR (1) FR2607061B1 (en)
GB (2) GB8627815D0 (en)
IT (1) IT1223361B (en)
NL (1) NL8702764A (en)
NZ (1) NZ222564A (en)
PT (1) PT86177A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07106167B2 (en) * 1986-12-01 1995-11-15 株式会社ブリヂストン Cushion
US5106548A (en) * 1988-05-26 1992-04-21 Ikeda Bussan Co., Ltd. Method of producing skin-covered pad for seat
GB8825984D0 (en) * 1988-11-07 1988-12-14 Medesign Ltd Therapeutic pillow
GB8827280D0 (en) * 1988-11-22 1988-12-29 Bp Chem Int Ltd Process for making polyurethane foam
US5000515A (en) * 1989-02-14 1991-03-19 Hoover Universal, Inc. Variable density foam vehicle seat
GB8906297D0 (en) * 1989-03-18 1989-05-04 Bp Chem Int Ltd Process for preparing multihardness foam articles
US5400490A (en) * 1993-02-26 1995-03-28 Woodbridge Foam Corporation Method of molding a seat having anchoring means connected thereto
DE10205028C1 (en) * 2002-02-07 2003-08-14 Krauss Maffei Kunststofftech Manufacture of moldings made up of at least two sections of foam with different rigidity uses single female mold with male mold and then with female mold, protective sheet being incorporated into molding
JP5308152B2 (en) * 2006-03-31 2013-10-09 テイ・エス テック株式会社 Cushion body manufacturing method and seat seat manufacturing method
ES2384353B1 (en) * 2009-06-23 2013-06-10 Asociacion De Investigación Centro Tecnológico Del Mueble Y La Madera De La Región De Murcia PROCEDURE FOR OBTAINING RESIN FOAMS.
US9351579B2 (en) * 2012-01-05 2016-05-31 Andres Escobar Uribe Multi-layered anatomical quilted system
EP2887835B1 (en) 2012-08-23 2018-04-18 Lear Corporation Thoracic support structure and a seat with the thoracic support member
WO2014031819A1 (en) * 2012-08-23 2014-02-27 Lear Corporation Thoracic region comfort seating system
NO338505B1 (en) * 2014-09-05 2016-08-29 Torgersen Hans & Soenn Child safety seat
AT519381A2 (en) * 2016-11-24 2018-06-15 Fill Gmbh Process for producing a shaped body
CN114248673B (en) * 2020-09-24 2024-10-15 博泽西德科(上海)汽车系统有限公司 Automobile seat with gradient hardness distribution of foaming materials and manufacturing method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006618A (en) * 1977-09-23 1979-05-10 Metzeler Schaum Gmbh Vehicle seat
GB2039506A (en) * 1979-01-15 1980-08-13 Milsco Mfg Co Multidensity foam article and method of preparation
GB2133800A (en) * 1983-01-20 1984-08-01 Milsco Mfg Co Multidensity foam article and method of preparation
GB2144071A (en) * 1983-08-01 1985-02-27 Dunlop Ltd Method and apparatus for producing upholstery bodies from moulded foam
EP0152130A2 (en) * 1984-01-31 1985-08-21 CLERPREM S.r.l. Process for making a cushion for a seat surface or a back of a car seat or similar applications
EP0068820B1 (en) * 1981-06-27 1985-09-11 BP Chemicals Limited Process for making polyurethane foam
GB2161375A (en) * 1984-07-09 1986-01-15 Milsco Mfg Co Composite foam-seat cushion and method of preparation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3161436A (en) * 1962-03-27 1964-12-15 Davidson Rubber Company Inc Pre-stressed molded foam cushioning element
FR1403374A (en) * 1964-07-25 1965-06-18 Dunlop Sa Reinforced foam molded articles
FR2562882B1 (en) * 1984-04-16 1989-11-17 Nhk Spring Co Ltd SEAT PADDING AND MANUFACTURING METHOD THEREOF

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006618A (en) * 1977-09-23 1979-05-10 Metzeler Schaum Gmbh Vehicle seat
GB2039506A (en) * 1979-01-15 1980-08-13 Milsco Mfg Co Multidensity foam article and method of preparation
EP0068820B1 (en) * 1981-06-27 1985-09-11 BP Chemicals Limited Process for making polyurethane foam
GB2133800A (en) * 1983-01-20 1984-08-01 Milsco Mfg Co Multidensity foam article and method of preparation
GB2144071A (en) * 1983-08-01 1985-02-27 Dunlop Ltd Method and apparatus for producing upholstery bodies from moulded foam
EP0152130A2 (en) * 1984-01-31 1985-08-21 CLERPREM S.r.l. Process for making a cushion for a seat surface or a back of a car seat or similar applications
GB2161375A (en) * 1984-07-09 1986-01-15 Milsco Mfg Co Composite foam-seat cushion and method of preparation

Also Published As

Publication number Publication date
NL8702764A (en) 1988-06-16
GB2197659A (en) 1988-05-25
IT1223361B (en) 1990-09-19
PT86177A (en) 1988-12-15
GB8726372D0 (en) 1987-12-16
AU8135787A (en) 1988-05-26
NZ222564A (en) 1990-09-26
IT8722704A0 (en) 1987-11-19
ES2005460A6 (en) 1989-03-01
BE1001195A3 (en) 1989-08-16
FR2607061A1 (en) 1988-05-27
GB8627815D0 (en) 1986-12-17
DE3739249A1 (en) 1988-05-26
FR2607061B1 (en) 1990-04-20
AU589821B2 (en) 1989-10-19
JPH0189111U (en) 1989-06-13

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931111