AQUEOUS DISPERSIONS OF EPOXY COMPOUNDS

摘要

An aqueous dispersion of an epoxide compound comprising water, one or more water-insoluble 1,2-epoxide compounds having mol weights Mn of from between 150 and 3000 and an emulsifying system comprising: (A) from 9.5 to 35% by weight of at least one polyester resin containing carboxyl groups having an acid number of from 10 to 50 mg KOH/g substance and a molecular weight Mn of from 400 to 4000, at least 30% of the carboxyl groups being neutralized; (B) from 0.5 to 25% by weight of at least one emulsifier having an HLB-value>/=15 and represented by the formula: wherein R1 represents a C1-C16-alkyl group, R2 represents H or a C1-C16-alkyl group, R3 represents H or methyl, n represents a number from 10 to 50; (C) from 40 to 90% by weight of at least one emulsifier having an HLB-value of 15 and the general formula: wherein R2 is previously defined, R4 represents C1-C4-alkyl group, x is a number of from 2 to 3, and m is a number from 15 to 100, the total of the percentage contents from A, B, and C being 100%.