IT1223361B - Processo per preparare espansi poliuretanici aventi zone di differente durezza - Google Patents
Processo per preparare espansi poliuretanici aventi zone di differente durezzaInfo
- Publication number
- IT1223361B IT1223361B IT22704/87A IT2270487A IT1223361B IT 1223361 B IT1223361 B IT 1223361B IT 22704/87 A IT22704/87 A IT 22704/87A IT 2270487 A IT2270487 A IT 2270487A IT 1223361 B IT1223361 B IT 1223361B
- Authority
- IT
- Italy
- Prior art keywords
- polyurethane foams
- different hardness
- preparing polyurethane
- hardness areas
- areas
- Prior art date
Links
- 229920005830 Polyurethane Foam Polymers 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000011496 polyurethane foam Substances 0.000 title 1
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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB868627815A GB8627815D0 (en) | 1986-11-20 | 1986-11-20 | Preparing polyurethane foams |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8722704A0 IT8722704A0 (it) | 1987-11-19 |
IT1223361B true IT1223361B (it) | 1990-09-19 |
Family
ID=10607679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22704/87A IT1223361B (it) | 1986-11-20 | 1987-11-19 | Processo per preparare espansi poliuretanici aventi zone di differente durezza |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPH0189111U (it) |
AU (1) | AU589821B2 (it) |
BE (1) | BE1001195A3 (it) |
DE (1) | DE3739249A1 (it) |
ES (1) | ES2005460A6 (it) |
FR (1) | FR2607061B1 (it) |
GB (2) | GB8627815D0 (it) |
IT (1) | IT1223361B (it) |
NL (1) | NL8702764A (it) |
NZ (1) | NZ222564A (it) |
PT (1) | PT86177A (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07106167B2 (ja) * | 1986-12-01 | 1995-11-15 | 株式会社ブリヂストン | クツシヨン体 |
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 (de) * | 2002-02-07 | 2003-08-14 | Krauss Maffei Kunststofftech | Verfahren und Vorrichtung zur Herstellung eines Mehrzonen-Schaumstoff-Formkörpers |
JP5308152B2 (ja) * | 2006-03-31 | 2013-10-09 | テイ・エス テック株式会社 | クッション体の製造方法および座席シートの製造方法 |
ES2384353B1 (es) * | 2009-06-23 | 2013-06-10 | Asociacion De Investigación Centro Tecnológico Del Mueble Y La Madera De La Región De Murcia | Procedimiento de obtención de espumas de resinas. |
WO2013102777A1 (es) * | 2012-01-05 | 2013-07-11 | Escobar Uribe Andres | Sistema de acolchados anatómico con capas multinivel |
CN104582535B (zh) | 2012-08-23 | 2018-02-13 | 李尔公司 | 胸区舒适就坐系统 |
US9826840B2 (en) | 2012-08-23 | 2017-11-28 | Lear Corporation | Thoracic region comfort seating system |
NO338505B1 (no) | 2014-09-05 | 2016-08-29 | Torgersen Hans & Soenn | Sikkerhetssete for barn |
AT519381A2 (de) * | 2016-11-24 | 2018-06-15 | Fill Gmbh | Verfahren zur Herstellung eines Formkörpers |
CN114248673A (zh) * | 2020-09-24 | 2022-03-29 | 西德科(上海)汽车座椅有限公司 | 发泡材料硬度呈梯度分布的汽车座椅及其制造方法 |
Family Cites Families (10)
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 (fr) * | 1964-07-25 | 1965-06-18 | Dunlop Sa | Articles moulés en mousse renforcés |
DE7729578U1 (de) * | 1977-09-23 | 1978-01-12 | Metzeler Schaum Gmbh, 8940 Memmingen | Schaumstoffauflage fuer fahrzeugsitze |
US4190697A (en) * | 1979-01-15 | 1980-02-26 | Milsco Manufacturing Company | Multidensity foam article and method of preparation |
CA1194660A (en) * | 1981-06-27 | 1985-10-08 | Rudolf J. Tenhagen | Process for making polyurethane foam |
US4405681A (en) * | 1983-01-20 | 1983-09-20 | Milsco Manufacturing Company | Foam article and method of preparation |
DE3327724A1 (de) * | 1983-08-01 | 1985-02-14 | Dunlop Ag, 6450 Hanau | Verfahren und vorrichtung zur herstellung von polsterkoerpern aus formschaum |
IT1181506B (it) * | 1984-01-31 | 1987-09-30 | Clerprem Srl | Procedimento per la realizzazione di un cuscino per sedile o schienale di autoveicolo o simile in doppio strato di schiuma,con caratteristiche diverse e cuscino ottenuto con dette caratteristiche |
FR2562882B1 (fr) * | 1984-04-16 | 1989-11-17 | Nhk Spring Co Ltd | Rembourrage de siege et son procede de fabrication |
GB2161375A (en) * | 1984-07-09 | 1986-01-15 | Milsco Mfg Co | Composite foam-seat cushion and method of preparation |
-
1986
- 1986-11-20 GB GB868627815A patent/GB8627815D0/en active Pending
-
1987
- 1987-11-11 GB GB8726372A patent/GB2197659B/en not_active Expired - Lifetime
- 1987-11-16 NZ NZ222564A patent/NZ222564A/xx unknown
- 1987-11-18 AU AU81357/87A patent/AU589821B2/en not_active Ceased
- 1987-11-19 BE BE8701311A patent/BE1001195A3/fr not_active IP Right Cessation
- 1987-11-19 DE DE19873739249 patent/DE3739249A1/de not_active Withdrawn
- 1987-11-19 PT PT86177A patent/PT86177A/pt not_active Application Discontinuation
- 1987-11-19 FR FR878716019A patent/FR2607061B1/fr not_active Expired - Fee Related
- 1987-11-19 IT IT22704/87A patent/IT1223361B/it active
- 1987-11-19 NL NL8702764A patent/NL8702764A/nl not_active Application Discontinuation
- 1987-11-20 ES ES8703315A patent/ES2005460A6/es not_active Expired
- 1987-11-20 JP JP1987177475U patent/JPH0189111U/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
NL8702764A (nl) | 1988-06-16 |
GB8726372D0 (en) | 1987-12-16 |
GB2197659B (en) | 1990-01-10 |
GB8627815D0 (en) | 1986-12-17 |
NZ222564A (en) | 1990-09-26 |
JPH0189111U (it) | 1989-06-13 |
AU8135787A (en) | 1988-05-26 |
DE3739249A1 (de) | 1988-05-26 |
IT8722704A0 (it) | 1987-11-19 |
FR2607061A1 (fr) | 1988-05-27 |
ES2005460A6 (es) | 1989-03-01 |
PT86177A (pt) | 1988-12-15 |
GB2197659A (en) | 1988-05-25 |
FR2607061B1 (fr) | 1990-04-20 |
BE1001195A3 (fr) | 1989-08-16 |
AU589821B2 (en) | 1989-10-19 |
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