Urea-superacid salts and their use as a curing catalyst of epoxy

Details Urea-superacid salts and their use as a curing catalyst of epoxy Urea-superacid salts and their use as a curing catalyst of epoxy

1993-06-14

1994-03-15

Krass, Frederick

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502167, 528 88, 528 89, 528 90, 528 91, 528 92, 528 93, 528 94, 528361, 528393, 528408, 528409, 528410, 5253273, 564 8, 564 47, 564 48, 564 55, 564 56, 564 57, 564 58, B01J 3100

Patent

active

052945820

ABSTRACT:
As a curing catalyst of epoxy resins, superacid salts of an N,N'-di- or N,N',N'-trisubstitued urea, the urea component of which is produced by reacting an organic isocyanate and a primary or secondary amine, at least one of which is monofunctional, are soluble in conventional organic solvents compatible with epoxy resins and catalyze the cationic polymerization reaction of epoxy resins at room temperature.

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