Extraction of polyoxyalkylene surfactants for phenolic foam stab

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4283144, 4283184, 521 94, 521181, B32B 326

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045228779

ABSTRACT:
Polyoxyalkylene foam stabilizing surfactants can be prepared by reacting a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid under free radical polymerization conditions in the presence of a free radical initiator, and by subjecting the reaction product obtained to a solvent extraction. The isolated components can be utilized as surfactants in producing cellular foams.

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