Method for making a reinforced rim elastomer
US4435349A · kind A · utility
20Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1982 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Apr 5, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for making a high strength composite of a reinforcing mat impregnated with reaction injection molded (RIM) polyurethane elastomer is disclosed. The method comprises placing the reinforcing mat in a mold cavity and injecting into the mold cavity a formulation capable of forming a reaction injection molded polyurethane elastomer comprising a polyol of above about 500 equivalent weight, a chain extending agent, a delayed action catalyst and a polyisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.