Polyurethane foam prepared from a copolymer/polyol composition
US4282331A · kind A · utility
10Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1980 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Feb 19, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/63
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a novel process for producing polymer/polyols characterized by the use of specific amounts of particular monomer combinations and by maintaining a low monomer concentration throughout the reaction mixture during the process. The monomer combinations are acrylonitrile or methacrylonitrile and styrene or alpha-methyl styrene. The process produces novel polymer/polyols characterized by their convertibility to low density, water-blown polyurethane foams having reduced scorch and by the relatively small size of the polymer particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.