Back to results
US 5,294,582 AGranted
Urea-superacid salts and their use as a curing catalyst of epoxy resins
AssigneeNippon Paint Co., Ltd.
InventorsTadafumi Miyazono, Koji Tabuchi
Life of this patent
Estimating the term…
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.
Claims9
A superacid salt of an N,N'-di- or;
- N,N,N'-trisubstituted urea produced by reacting an organic isocyanate and a primary or secondary amine, at least one of said isocyanate or said amine being monofunctional.
Dependencies are inferred from the claim text.