Colorless, non-toxic, stabilized aqueous solution of a C1-C5 alk

Details Colorless, non-toxic, stabilized aqueous solution of a C1-C5 alk Colorless, non-toxic, stabilized aqueous solution of a C1-C5 alk

1995-10-13

1997-04-15

Nazario-Gonzalez, Porifirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C 6900, C07C 69007, C07C 6901

Patent

active

056211368

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, preferably directly from a slurry of corresponding anhydride in an organic solvent by hydrolysis in water, and adding superoxide dismutase as the single stabilizing agent to the solution either before or after hydrolysis.

REFERENCES:
patent: 3531427 (1970-09-01), Kervenski et al.
patent: 4129644 (1978-12-01), Kalopissis et al.
CA119:34113e (1993).
CA122:114628d (1995).

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