Copolymers, their preparation and their use as assistants in det

Details Copolymers, their preparation and their use as assistants in det Copolymers, their preparation and their use as assistants in det

1984-02-16

1985-12-17

Clingman, A. Lionel

Compositions

Water-softening or purifying or scale-inhibiting agents

8137, 252 89, 25217423, 5253274, 525384, 525385, 526271, C08F 814, C08F22006, C11D 337, D06L 302

Patent

active

045591598

ABSTRACT:
Water-soluble copolymers which consist of from 40 to 90% by weight of one or more ethylenically unsaturated monocarboxylic acids of 3 to 5 carbon atoms, from 60 to 10% by weight of one or more ethylenically unsaturated dicarboxylic acids of 4 to 8 carbon atoms and/or of the corresponding dicarboxylic acid anhydride and, if required, not more than 15% by weight, based on the total weight of the carboxyl-containing monomers, of one or more carboxyl-free monomers, and which are esterified with from 2 to 60% by weight, based on the total weight of the carboxyl-containing monomers, of one or more compounds which contain a terminal hydroxyl group and one or more alkylene oxide groups of 2 to 4 carbon atoms, the preparation of such water-soluble copolymers and their use as assistants in detergents, cleansing and dishwashing agents.

REFERENCES:
patent: 3308067 (1967-03-01), Diehl
patent: 3719647 (1973-03-01), Hardy et al.
patent: 4000080 (1976-12-01), Bartolotia et al.

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