Modified maleic anhydride polymers and the like for use as scale

Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...

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252180, 210701, C02F 512

Patent

active

049198211

ABSTRACT:
Water supplies are treated to inhibit the formation of scale deposits of alkaline earth phosphates, phosphonates, sulphates and carbonates using various hydrocarbon polymers which contain an amido functionality and which have been prepared by post-polymerization derivatization.

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