Colorless, non-toxic, stabilized aqueous solution of a C.sub.1 -

Details Colorless, non-toxic, stabilized aqueous solution of a C.sub.1 - Colorless, non-toxic, stabilized aqueous solution of a C.sub.1 -

1995-09-13

1998-04-14

Smith, Jeffrey T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524556, C08K 516

Patent

active

057391831

ABSTRACT:
A method of stabilizing an aqueous solution of an acid copolymer of maleic acid and a C.sub.1 -C.sub.5 alkyl vinyl ether against degradation in viscosity or molecular weight upon storage for an extended period of time in aqueous solution at ambient conditions, with a single stabilizing agent, which comprises forming the acid copolymer directly from a slurry of corresponding anhydride in an organic solvent by hydrolysis in water, and adding including ethylenediamine tetraacetic acid (EDTA), or salt thereof, as the single stabilizing agent to the solution either before or after hydrolysis.

REFERENCES:
patent: 3531427 (1970-09-01), Kervenski et al.

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