Polyurethanes prepared from solutions or dispersions of polymers of rigid polyaromatic monomers in polyols
US4745137A · kind A · utility
56Cited by
1References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1987 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jul 14, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The inclusion of a polymer containing rigid moieties in an active hydrogen-containing compound has surprisingly been found to yield significant and unexpected improvements in the physical properties of polyurethane and/or polyurea polymers prepared therefrom. In particular, cellular polyurethane and/or polyureas made from these solutions have excellent firmness and high moduli.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.