Polyphosphate and polymaleic anhydride combination for treating

Compositions – Preservative agents – Anti-corrosion

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252 855E, 252181, 106 1412, 106 1414, 106 1415, 106 1418, 210697, 210700, 422 16, 422 17, 422 18, C23F 1118, C23F 1114, C23F 1116

Patent

active

042972370

ABSTRACT:
A method of inhibiting corrosion in an aqueous system comprising treating said system with 1.0 to 300 parts per million by weight of the total aqueous content of said system, of a composition comprising polyphosphate and polymaleic anhydride or amine adducts thereof in a weight ratio of from 10:1 to 1:10.

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