Process for preparing thermoplastic hydrogen-containing fluoropo

Details Process for preparing thermoplastic hydrogen-containing fluoropo Process for preparing thermoplastic hydrogen-containing fluoropo

1995-03-16

1996-04-23

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526249, C08F 238

Patent

active

055104355

ABSTRACT:
Cyclopentanes alkyl-substituted with one or more C.sub.1 -C.sub.6 alkyls are used as chain transfer agents in (co)polymerization reactions carried out, either in suspension or in aqueous emulsion, at low temperatures, comprised between -30.degree. and +30.degree. C., for preparing thermoplastic hydrogen-containing fluoropolymers , such as for instance ethylene/chlorotrifluoroethylene and ethylene/tetrafluoroethylene copolymers, or homopolymers and copolymers of vinylidenefluoride. They are transfer agents having high efficiency, which are liquid and thus can be easily handled and dosed, non-toxic, yielding alkyl end groups of high thermal stability.

REFERENCES:
patent: 3053820 (1962-09-01), Wechsler et al.
patent: 3265678 (1966-08-01), Hecht
patent: 3624250 (1971-11-01), Carlson
patent: 3642742 (1972-02-01), Carlson
patent: 3847881 (1974-11-01), Mueller et al.
patent: 3865845 (1975-02-01), Resnick
patent: 3978030 (1976-08-01), Resnick
patent: 4513129 (1985-04-01), Nakagawa et al.
patent: 4524194 (1985-06-01), Dumoulin
patent: 4683274 (1987-07-01), Nakamura et al.
patent: 4739024 (1988-04-01), Moggi et al.
patent: 4789717 (1988-12-01), Giannetti et al.
patent: 4864006 (1989-09-01), Giannetti et al.
patent: 5021516 (1991-06-01), Wheland
patent: 5182342 (1993-01-01), Feiring et al.
patent: 5264530 (1993-11-01), Darmon et al.
Copending U.S. application Ser. No. 08/405,811, filed Mar. 16, 1995, Abusleme et al--"(Co) Polymerization Process in Suspension for Preparing Hydrogen Containing Thermoplastic Fluoropolymers".
Copending U.S. application Ser. No. 08/332,748, Abusleme et al (filing date and title unknown.

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