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

1991-02-25

1992-08-11

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

528 44, 524773, 554163, 554219, 554223, 554224, 554227, 554774, C08K 509, C09F 508, C09F 710, C08G 1806

Patent

active

051379660

ABSTRACT:
The present invention is directed to a novel internal mold release agent for use in a polyurethane(urea) RIM process. The release agent broadly consists of the transesterification product of a fatty acid and a lower alkyl acetoacetate.

REFERENCES:
patent: 3925527 (1975-12-01), Kleimann et al.
patent: 4201847 (1980-05-01), Kleimann et al.
patent: 4254228 (1981-03-01), Kleimann et al.

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