Water-soluble copolymer and its preparation

Compositions – Leather or fur treating

Patent

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252 85A, C09K 702

Patent

active

043572456

ABSTRACT:
Outstandingly suitable drilling mud additives are water soluble copolymers consisting essentially of a random distribution of

REFERENCES:
patent: 2775557 (1956-12-01), Morgan
patent: 3296126 (1967-01-01), Diener et al.
patent: 3402222 (1968-09-01), Zutty et al.
patent: 3692673 (1972-09-01), Hoke
patent: 4048077 (1977-09-01), Engelhardt et al.
patent: 4293427 (1981-10-01), Lucas et al.

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