Process for preparing thermoplastic hydrogen-containing fluoropolymers

Process for preparing thermoplastic hydrogen-containing fluoropolymers

Cyclopentanes alkyl-substitued with one or more C1-C6 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 DEG and +30 DEG C, for preparing thermoplastic hydrogen-containing fluor...

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Bibliographische Detailangaben
1. Verfasser: JULIO A. ABUSLEME,SHELDON J. KIRSCH
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:Cyclopentanes alkyl-substitued with one or more C1-C6 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 DEG and +30 DEG 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.