Compatabilization of internal mold release agents

Details Compatabilization of internal mold release agents Compatabilization of internal mold release agents

C - Chemistry, Metallurgy

08

G

C08G 18/66 (2006.01) C08G 18/28 (2006.01) C08K 5/00 (2006.01) C08K 5/04 (2006.01)

Patent

CA 2337908

The disclosed invention relates to isocyanate reactive systems which have internal mold release agents having improved stability. The isocyanate reactive system includes (1) at least one compound containing a plurality of isocyanate-reactive groups and (2) an internal mold release system comprising (a) a carboxylic acid and (b) a compound selected from the group consisting of a fatty polyester, a fatty acid ester and a fatty amide, and a surfactant selected from the group consisting of ethoxylated alcohols, propoxylated alcohols or blends thereof.

La présente invention concerne des systèmes isocyanate réactifs renfermant des agents de démoulage internes dotés d'une stabilité améliorée. Le système isocyanate réactif précité comprend (1) au moins un composé contenant une pluralité de groupes isocyanate réactifs et (2) un système de démoulage interne renfermant (a) un acide carboxylique et (b) un composé choisi dans le groupe composé d'un polyester gras, un ester d'acide gras et un amide gras, et un tensio-actif choisi dans le groupe composé des éthoxy alcools, des alcools propoxylés et de mélanges de ces derniers.

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