Method for extending the pot-life of polyol/polyisocyanate...

C - Chemistry – Metallurgy – 09 – D

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C09D 175/04 (2006.01) B05D 1/36 (2006.01) C08G 18/08 (2006.01) C08G 18/40 (2006.01) C08G 18/62 (2006.01)

Patent

CA 2076185

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 poly-isocyanate, which method comprises incorporating within the mixture a pot-life extending amount of an anhydride-functional polymer having an average of at least two anhydride groups per molecule.

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