Internal mold release agents and the use thereof in the production of molded products
US5125974A · kind A · utility
5Cited by
26References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1991 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Apr 22, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2125/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a novel internal release agent for the production of polyurethane and/or polyurea elastomers, to an isocyanate reactive composition containing that release agent and to the use of the release agent in a RIM process. The release agent is the reaction product of i) a transester of a) a polyester derived from a polymerized fatty acid and either neopentyl glycol or 2,2,4-trimethyl-1,3-pentane diol and b) an acetoacetate and ii) an aliphatic monoisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.