Patent ID: 8202580
Filing Date: 2012-06-19
Classification: C08G,Y10T

Abstract:
1. A process of curing a composition comprising at least one epoxy compound, said process comprising curing the composition in the presence of a 1,3-substituted imidazolium salt latent catalyst of the formula I in which R1 and R3 independently of one another are an organic radical having 1 to 20 C atoms, R2, R4, and R5 independently of one another are an H atom or an organic radical having 1 to 20 C atoms, it also being possible for R4 and R5 together to form an aliphatic or aromatic ring, X is the anion of a phosphorus oxyacid, selected from the group consisting of hypophosphite, phosphite, metaphosphites, metaphosphate, monoalkylphosphites, monoalkylphosphates, dialkylphosphates, and dimeric or oligomeric compounds formed by elimination of water from the corresponding acids, the monoalkylphosphites and mono- and dialkylphosphates having 1 to 20 C atoms, and n is 1, 2 or 3.