Particulate vinyl polymer and water-base coating composition usi

Details Particulate vinyl polymer and water-base coating composition usi Particulate vinyl polymer and water-base coating composition usi

1994-10-06

1996-03-05

Smith, Jeffrey T.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

52631844, C08F 2010

Patent

active

054969042

ABSTRACT:
A particulate vinyl polymer is provided. At least 95 wt. % of its particles have a minor axis A and a major axis B, which are in a relationship of 1.ltoreq.B/A.ltoreq.1.5 and individually range from 30 .mu.m to 400 .mu.m. The polymer has an acid value of from 30 to 150 mg KOH/g. This particulate vinyl polymer is excellent in workability such as the solubility in aqueous medium, and is useful as a raw material for water-base coating compositions having superb dispersion of a pigment and excellent waterproofness.

REFERENCES:
patent: 4320207 (1982-03-01), Watanabe et al.
Database WPI, Derwent Publications Ltd., AN 89 291056, JP-A-1 215 805, Aug. 29, 1989.
Database WPI, Derwent Publications Ltd., AN 90 338101, JP-A-2 242 807, Sep. 27, 1990.
Database WPI, Werwent Publications Ltd., AN 94-132051, JP-A-6 080 711, Mar. 22, 19994.

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