GB1451132A - Foam materials and the preparation thereof - Google Patents
Foam materials and the preparation thereofInfo
- Publication number
- GB1451132A GB1451132A GB274974A GB274974A GB1451132A GB 1451132 A GB1451132 A GB 1451132A GB 274974 A GB274974 A GB 274974A GB 274974 A GB274974 A GB 274974A GB 1451132 A GB1451132 A GB 1451132A
- Authority
- GB
- United Kingdom
- Prior art keywords
- foam
- styrene
- acrylonitrile
- particles
- expandable
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/35—Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments
Landscapes
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
1451132 Foams derived from expandable styrene/acrylonitrile copolymers DOW CHEMICAL CO 21 Jan 1974 2749/74 Headings C3C and C3R A foam comprises a matrix of an open cell flexible foam, the matrix having dispersed in all or portion thereof a plurality of closed cell expanded particles of a copolymer of 92-60% by wt. styrene and 8-40% by wt. acrylonitrile which has been cross-linked to the extent that when unexpanded particles of the polymer containing no foaming agent are placed in dimethylformamide at 25‹ C. they form a coherent gel and show a swelling ratio (i.e. the ratio of the wt. of the swollen gel to the wt. of the unswollen particle) of 10-50. The crosslinked copolymers may be formed by polymerizing styrene and acrylonitrile in the presence of divinylbenzene or by treating a styrene/ acrylonitrile copolymer with the diglycidyl ether of bisphenol A and the expanded particles are made from expandable particles of the crosslinked copolymer containing a volatile fluid foaming agent, e.g. dichlorodifluoromethane, trichlorofluoromethane and/or trifluorotrichloroethane. The foam is made by mixing a selfreacting exothermic open cell foam forming composition, e.g. a polyurethane forming composition comprising a polypropylene oxide triol, water, a silicone surfactant and toluene diisocyanate with optionally trichlorofluoromethane, with the above expandable particles which form a closed cell foam, and casting or moulding the mixture into a desired shape while the expandable particles foam. The foams may be used as a filler for cushions, furniture and toys.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB274974A GB1451132A (en) | 1974-01-21 | 1974-01-21 | Foam materials and the preparation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB274974A GB1451132A (en) | 1974-01-21 | 1974-01-21 | Foam materials and the preparation thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1451132A true GB1451132A (en) | 1976-09-29 |
Family
ID=9745168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB274974A Expired GB1451132A (en) | 1974-01-21 | 1974-01-21 | Foam materials and the preparation thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1451132A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2298424A (en) * | 1995-02-28 | 1996-09-04 | Laszlo Kovacs | Composite foam building material |
WO2006010520A1 (en) * | 2004-07-27 | 2006-02-02 | Vismara Antonio | Composite material with improved energy-absorbing properties and method for producing this material |
WO2011061178A1 (en) * | 2009-11-20 | 2011-05-26 | Basf Se | Resin foams containing microballoons |
US8937106B2 (en) | 2010-12-07 | 2015-01-20 | Basf Se | Melamine resin foams with nanoporous fillers |
-
1974
- 1974-01-21 GB GB274974A patent/GB1451132A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2298424A (en) * | 1995-02-28 | 1996-09-04 | Laszlo Kovacs | Composite foam building material |
WO2006010520A1 (en) * | 2004-07-27 | 2006-02-02 | Vismara Antonio | Composite material with improved energy-absorbing properties and method for producing this material |
WO2011061178A1 (en) * | 2009-11-20 | 2011-05-26 | Basf Se | Resin foams containing microballoons |
CN102639620A (en) * | 2009-11-20 | 2012-08-15 | 巴斯夫欧洲公司 | Resin foams containing microballoons |
JP2013511583A (en) * | 2009-11-20 | 2013-04-04 | ビーエーエスエフ ソシエタス・ヨーロピア | Resin foam containing fine hollow spheres |
US9056961B2 (en) | 2009-11-20 | 2015-06-16 | Basf Se | Melamine-resin foams comprising hollow microbeads |
US8937106B2 (en) | 2010-12-07 | 2015-01-20 | Basf Se | Melamine resin foams with nanoporous fillers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1270351A (en) | Composite cellular material | |
US3878133A (en) | Cushioning and materials therefor | |
US4433029A (en) | Expandable thermoplastic polymer beads with method of producing same | |
CA1120649A (en) | Process for producing expandable thermoplastic resin beads using polypropylene as nucleus | |
ES456084A1 (en) | Soft ethylenic polymer foams | |
KR850007406A (en) | Method for producing foamable synthetic dendritic thermoplastic particles | |
JPS5923731B2 (en) | Polypropylene resin pre-expanded particles | |
US2714747A (en) | Manufacture of cellular bodies | |
GB1209243A (en) | Shaped polyurethane foams | |
GB1434502A (en) | Expandable thermoplastic styrene-based polymeric compositions | |
GB1270352A (en) | Polyether polyol compositions | |
GB1451132A (en) | Foam materials and the preparation thereof | |
GB997332A (en) | Improvements relating to foamed cellular materials | |
US3511764A (en) | Crosslinked polyacrylamide foam | |
US3840628A (en) | Manufacture of resilient compound foams | |
GB1447273A (en) | Isocyanate compositions | |
JPS5829331B2 (en) | Open-cell foam with expandable synthetic resin particles | |
JPS56155642A (en) | Preparation of water-absorbing foamed material | |
FR2282988A1 (en) | Expanded moulded polyvinyl chloride bodies prepn. - obviating adhesives, using polymer pearls impregnated with porogenic agents | |
US3242022A (en) | Gelled nitroalkane compositions for blasting | |
GB1524102A (en) | Amine-crossinkable viny halide-bis(hydrocarbyl) vinylphosphonate copolymer compositions | |
ES441948A1 (en) | Process for the preparation of flexible polyurethane foams | |
FR2088648A5 (en) | Foamable (co) polyvinyl chloride blends with - as foaming aid | |
CA1120650A (en) | Process for producing expandable thermoplastic resin beads | |
FR2259115A1 (en) | Expandable styrene-acrylonitrile copolymer particles - used dispersed in a foam matrix for upholstery |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940120 |