Title:
PRODUCTION OF BROMINATED POLYSTYRENE
Document Type and Number:
Japanese Patent JP3674196
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a brominated polystyrene in a good efficiency and in a high yield, and a white powder without a purifying process, and useful as a flame retarder, etc., by dripping a solution obtained by dissolving a polystyrene and a Lewis acid catalyst with an organic solvent, into a bromine chloride solution and reacting them.
SOLUTION: This brominatied polystyrene is obtained by dripping a solution obtained by dissolving a polystyrene and preferably 0.1-20mol% (based on the charged polystyrene) one or more kinds of Lewis acid catalysts selected from a halogenated antimony, a halogenated titanium, a halogenated boron and a halogenated boron complex into a bromine chloride solution and reacting them.
Inventors:
Hideo
Takumi Kagawa
Takumi Kagawa
Application Number:
JP31665396A
Publication Date:
July 20, 2005
Filing Date:
November 27, 1996
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C08F8/20; (IPC1-7): C08F8/20
Domestic Patent References:
| JP1057684B2 | ||||
| JP7002930A | ||||
| JP7292026A | ||||
| JP55151007A | ||||
| JP9227625A |
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