Polyurea rim systems
US5219973A · kind A · utility
35Cited by
23References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1990 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Dec 7, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a RIM process and an isocyanate reactive composition for use therein. The isocyanate composition includes an amine terminated chain extender and an aromatic amine terminated polyether of the formula: ##STR1## wherein R is an n-valent group obtained by the removal of hydroxyl groups from an n-hydroxy group containing polyhydroxyl compound having a molecular weight of from about 300 to about 12,000, PA0 R.sub.1 represents hydrogen or an inert substituent, PA0 R.sub.2 represents hydrogen, an amine group, or an inert substituent, and PA0 n represents an integer from 2 to 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.