Process for preparation of brominated styrene polymer particles

Details Process for preparation of brominated styrene polymer particles Process for preparation of brominated styrene polymer particles

1993-09-29

1995-07-04

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528494, 528497, 528498, C08F 622

Patent

active

054301262

ABSTRACT:
There are provided brominated styrene polymer particles whose hue is good and handling is easy and which contain fine particles and big particles only in a small amount. Such polymer particles are prepared by adding to a latex of a polymer obtained by emulsion polymerization of brominated styrene a specific amount of (A) an organic solvent sparingly soluble in water and capable of dissolving the polymer and a specific amount of (B) an organic solvent miscible with the organic solvent (A) in any ratio but sparingly soluble in water and incapable of dissolving the polymer and mixing the mixture, and then adding a coagulant and heat treating the mixture.

REFERENCES:
patent: 4977241 (1990-12-01), Sugimori et al.
Database WPI Derwent Publications, Ltd., London, GB; AN 90-243604[32] & JP-A-2 170 806 (Idemitsu Petrochem. KK.) 2 Jul. 1990.

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