Betaine copolymers-viscosifiers for water and brine

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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Details

524401, C08K 316

Patent

active

046070761

ABSTRACT:
A water soluble copolymer having the structure: ##STR1## wherein X is about 1 to about 99 mole percent and y is about 99 to about 1 mole percent.

REFERENCES:
patent: 3406155 (1968-10-01), Azorlosa
patent: 4330451 (1982-05-01), Straub
patent: 4490261 (1984-12-01), Heilweil

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