| 摘要 |
PROCESS FOR THE PREPARATION OF CARBOXYLATED AMIDE BINDERS The invention provides a process for the preparation of water-reducible carboxylated amide binders comprising the consecutive steps: A. reacting: 1. a substantially epoxy-free compound of general formula <IMG> (I) wherein A is the organic residue of a ring opening reaction of a vicinal epoxy group of a polyepoxide with ammonia or an amine having at least two amino hydrogens, R1, R3 and R4 each is hydrogen or a C1-6 alkyl group, with the proviso that at least one of R1, R3 and R4 is hydrogen, R2 is a C2-12 alkylene group, x is 0 or 1 and y is a number from 0 to 4, with 2. a carboxyl group-containing mono- or polyester compound derived from a di- or polycarboxylic acid and a polyhydric alcohol having at least one glycol group per molecule, with the proviso that only one carboxyl group per molecule of di- or polycarboxylic acid has been esterified and the or each ester group is a .beta.-hydroxyester group, at a temperature in the range of from 80 to 160 .degree.C, and B. neutralizing the carboxylic groups or the residual amine groups in the product of step A.
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