Settable fluoridated copolymer in powder form, its method of pro

Details Settable fluoridated copolymer in powder form, its method of pro Settable fluoridated copolymer in powder form, its method of pro

1994-05-13

1995-10-24

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

118621, C08F 1422, C08F 1426

Patent

active

054611300

ABSTRACT:
The present invention provides hardenable fluoridated copolymers that are prepared by (a) copolymerizing tetrafluoroethylene, vinylidene fluoride, and an allylic monomer of the formula ##STR1## wherein R is an unsaturated linear, branched, or cyclic alkyl chain having 2 to 12 carbon atoms, each of R1, R2, R3, and R4 is independently selected from the group consisting of H, CH.sub.3, CH.sub.2 CH.sub.3, OH, and CH.sub.2 OH, n is 0 or 1, and p is a value from 0 to 3, in the presence of a copolymerization initiator and in a solvent medium, and subsequently (b) extracting the copolymer from the reaction medium by precipitation in a liquid that is not a solvent of the copolymer but is miscible with the solvent of the reaction medium. The fluoridated copolymers so prepared are useful in powder form for electrostatic spray coating applications.

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FR 92-14035 (abstract EP599712) Nov. 23, 1992.

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