Internal mold release agents for polyisocyanurate systems

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...

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25218218, 25218224, 25218227, 2643281, 2643286, 4273855, 524728, C08L 7504

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active

049469223

ABSTRACT:
Disclosed are active hydrogen compositions comprising: (A) an organic polyol having a molecular weight of from about 100 to about 4,000 wherein at least about 40 percent of the available hydroxyl groups are primary; and (B) from about 0.5 to about 10 pph of (A) of a polyamide formed from the reaction of a C.sub.2 to C.sub.30 aliphatic monocarboxylic acid and a relatively high molecular weight amine terminated polyether.
Also disclosed are the molded polyisocyanurate polymers prepared from the above compositions and organic polyisocyanates.

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