Method for extending the pot-life of polyol-polyisocyanate mixtu

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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528 84, 525127, C08G 1842, C08G 1834, C08L 7500

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active

051571005

ABSTRACT:
A method for extending the pot-life of a curable composition comprising a mixture of at least one active hydrogen-containing material, such as a polyol or polyamine, and a polyisocyanate, which method comprises incorporating within the mixture a pot-life extending amount of a polyanhydride having an average of at least two anhydride groups per molecule.

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