Reaction injection molded polyureas employing high molecular weight amine-terminated polyethers
US4642320A · kind A · utility
44Cited by
28References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1985 |
| Grant date | Feb 10, 1987 |
| Priority date | — |
| Expiry date | Jun 19, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/902
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Reaction injection molded polyurethanes prepared from a composition comprising (A) a relatively high molecular weight polyol, (B) a chain extender and (C) an aliphatic polyisocyanate or polyisothiocyanate are improved by replacing a portion of the relatively high molecular weight polyol with an aminated or partially aminated polyoxyalkylene material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.