Manufacture of heat-stable brominated oligomers of monovinyl-aro

Details Manufacture of heat-stable brominated oligomers of monovinyl-aro Manufacture of heat-stable brominated oligomers of monovinyl-aro

1976-07-14

1978-02-14

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260667, 526 25, 526 26, 526 43, 528487, C08F 820, C08F 822, C08F 804

Patent

active

040740323

ABSTRACT:
A process for the manufacture of heat-stable, brominated oligostyrenes by brominating selectively hydrogenated oligostyrenes in halogenated solvents in the presence of Lewis acids at from -25.degree. to +20.degree. C. The brominated oligomers are highly heat-stable and can be processed, by themselves or as components of mixtures with other thermoplastics, to give various shaped articles.

REFERENCES:
patent: 3039977 (1962-06-01), Ingram
patent: 3607989 (1971-09-01), Sonnabend

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