Melamine cured polyurethane foam with improved properties
US4757094A · kind A · utility
6Cited by
40References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1987 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | May 21, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/34922
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Flexible polyurethane foam forming compositions comprising a polyether polyol, an organic isocyanate compound, a blowing agent, and a curing agent, preferably melamine, in an amount effective to rapidly cure the resultant foam and improve the compression set properties of the foam, the amount of curing agent generally ranging from about 0.25 up to about 4 parts by weight based on 100 parts polyether polyol. Also, the composition of polyurethane foams and methods of forming same from such foam-forming compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.