Fluorine-containing block copolymer

Details Fluorine-containing block copolymer Fluorine-containing block copolymer

1990-09-18

1991-09-17

Seccuro, Carman J.

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

Synthetic resins

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

525276, 525273, C08F25908, C08F29300

Patent

active

050496220

ABSTRACT:
CF.sub.2 .dbd.CF.sub.2 and CF.sub.3 OCF.dbd.CF.sub.2 are subjected to copolymerization reaction in the presence of an organic compound containing at least one of iodine and bromine, and then CF.sub.2 .dbd.CF.sub.2 and CH.sub.2 .dbd.CF.sub.2 are supplied to the reaction system to continue the polymerization reaction.
The thus obtained fluorine-containing block copolymer is of a low vinylidene fluoride content type and has a good solvent resistance.

REFERENCES:
patent: 4158678 (1979-06-01), Tatemoto et al.
patent: 4469846 (1984-09-01), Khan et al.
patent: 4487882 (1984-12-01), Ueta et al.
patent: 4861836 (1989-08-01), Tatemoto et al.

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