Copolymers of allyl iminodiacetic acid with unsaturated carboxylic acids and their use as complexing agents, peroxide stabilizers, builders in cleaning and cleaning products, and dispersants

摘要

PCT No. PCT/EP93/01694 Sec. 371 Date Dec. 29, 1994 Sec. 102(e) Date Dec. 29, 1994 PCT Filed Jul. 1, 1993 PCT Pub. No. WO94/01477 PCT Pub. Date Jan. 20, 1994 IMAGE (I) Polymers consisting of (a) 1-50% weight of N-allyliminodiacetic acid and its salts; (b) 50-99% weight of one or several unsaturated, polymerisable carboxylic acids having the formula (I), in which R1 stands for hydrogen, C1-C4 alkyl or COOM, R2 stands for hydrogen or C1-C4 alkyl, R3 stands for hydrogen, C1-C4 alkyl or CH2COOM and M stands for hydrogen, ammonium, an alkali metal or an alkaline earth metal; and (c) 0-40% by weight water soluble monomers copolymerisable with (a) and (b). These polymers preferably contain acrylic acid, methacrylic acid and maleic acid as unsaturated polymerisable carboxylic acids. Also disclosed are the use of these polymers as complexing agents, as peroxide stabilizers and builders in washing products, as dispersing agents and hardness stabilizers.