Internal release agents, active hydrogen containing mixtures which contain such agents and the use thereof in a process for the production of molded products
US5208268A · kind A · utility
6Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1992 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Sep 25, 2012 |
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, a mixture of isocyanate reactive materials containing the release agent and a RIM process using the release agent. The novel release agent is the reaction product of i) an ester prepared by reacting a specific tetrol with a mixture of saturated and unsaturated acids, and ii) a neutralizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.