Polyurethane foams using a polyurea polymer polyol
US4296213A · kind A · utility
31Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1980 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Oct 31, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyurea polymer polyol made by the reaction of a hydroxyl-containing amine, a polyether polyol of about 3,000 to 8,000 molecular weight and an organic polyisocyanate is disclosed. This polyurea polymer polyol may be used in the manufacture of flexible polyurethane foams which are firmer and stronger than similar products using conventional polyols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.