Chlorination of polymers

Details Chlorination of polymers Chlorination of polymers

1984-12-17

1986-07-22

Ziegler, Jacob

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

Synthetic resins

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

522131, 522133, C08C 1914, C08F 822

Patent

active

046020683

ABSTRACT:
Solid organic polymers are chlorinated with chlorine to give chlorinated polymers in the presence of a solvent which contains from 20 to 100% by weight of phosgene and in which the polymer is dissolved or suspended, at or below the boiling point of the mixture of chlorine and solvent, by initiating the reaction with actinic light or another initiator which produces free radicals. A mixture of not less than 50% by weight of phosgene and a chlorofluorocarbon or chlorofluorohydrocarbon, such as chlorotrifluoromethane, can also be used as the solvent, but phosgene is most suitable.

REFERENCES:
patent: 3597408 (1971-08-01), Trieschmann
patent: 3923473 (1975-12-01), Sandy
patent: 4377459 (1983-03-01), Parker
patent: 4381374 (1983-04-01), Hillman
patent: 4386189 (1983-05-01), Ackerman
patent: 4425206 (1984-01-01), Hutchinson

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