Polyurethane elastomer derived from graft of ethylenically unsaturated monomer on polyalkylene ether glycol
US4041105A · kind A · utility
7Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1976 |
| Grant date | Aug 9, 1977 |
| Priority date | — |
| Expiry date | Feb 26, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Flexible automobile exterior body parts are molded from a polyurethane elastomer prepared from a reaction mixture comprising: PA1 A. a "graft" polyol prepared by the in situ polymerization of one or more ethylenically unsaturated monomers in a poly(oxypropylene)-poly(oxyethylene) glycol of molecular weight from about 1750 to about 4000 and containing from 15 to 50% oxyethylene groups by weight, PA1 B. methylenebis(4-phenylisocyanate), PA1 C. 1,4-butanediol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.