Bis-(N-alkylaminocyclohexyl)methanes as curing agents in polyurethane and polyurea flexible foam manufacture
US5470890A · kind A · utility
13Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1994 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jun 17, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Flexible foam resistant to both photochemical and oxidative degradation result from the use of bis(N-alkylaminocyclohexyl)methanes as curing agents for polyisocyanates or polyisocyanate prepolymers. The chain extenders may be used alone or in combination with other polyamines and with polyols. Where the polyisocyanate or polyisocyanate prepolymer is also aliphatic there is outstanding resistance to yellowing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.