Process for brominating aromatic resins

Details Process for brominating aromatic resins Process for brominating aromatic resins

1989-08-10

1990-12-04

Lipman, Bernard

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253324, 5253333, 5253334, 525355, 525356, 5253591, C08F 822

Patent

active

049754963

ABSTRACT:
Styrenic polymers are brominated by a process comprising dispersing at least one Lewis acid catalyst in at least one inert halogenated solvent and contacting said Lewis acid catalyst dispersion with a solution of at least one ring-brominatable styrenic polymer in at least one inert halogenated solvent and at least one brominating agent.

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patent: 4352909 (1982-10-01), Barda et al.
patent: 4360455 (1982-11-01), Lindenschmidt et al.
patent: 4636554 (1987-01-01), Tada et al.

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