Polyether urethane polymers prepared from a copolymer of tetrahydrofuran and ethylene oxide
US4120850A · kind A · utility
38Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Sep 6, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2380/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyether urethane polymer which is the reaction product of PA1 (a) a difunctional copolymer of tetrahydrofuran and ethylene oxide or propylene oxide; PA1 (b) an organic diisocyanate; and PA1 (c) an aliphatic diol of 2 to 10 carbon atoms; Useful as an elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.