Internal release agents, active hydrogen containing mixtures whi

Details Internal release agents, active hydrogen containing mixtures whi Internal release agents, active hydrogen containing mixtures whi

1992-09-25

1993-05-04

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 51, 524714, 528 53, 264 51, 2643281, 2643286, 2643288, 560155, 560169, 106 2, 106243, 252 515R, 252 515A, 25218214, 25218218, C08G 1814

Patent

active

052082687

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.

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patent: 4519965 (1985-05-01), Taylor et al.
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patent: 4868224 (1989-09-01), Harasin et al.
patent: 4954537 (1990-09-01), Sanns, Jr.

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