Melt-shapeable fluoropolymer compositions

Details Melt-shapeable fluoropolymer compositions Melt-shapeable fluoropolymer compositions

A - Human Necessities

01

M

31/158, 400/5149

A01M 7/00 (2006.01) C08L 27/12 (2006.01) H01B 1/24 (2006.01) H01C 7/02 (2006.01)

Patent

CA 1278130

S P E C I F I C A T I O N Melt-Shapeable Fluoropolymer Compositions ABSTRACT OF THE DISCLOSURE Melt-shapeable conductive polymer compositions comprise (1) a first fluoropolymer of relatively low crystallinity, e.g. a copolymer of tetrafluoroethylene and a perfluorinated comonomer, (2) a second fluoropolymer of relatively high crystallinity, especially a fluoropolymer obtained by irradiating PTFE or another fluoropolymer which cannot be melt-shaped in the absence of other polymers, and (3) a conductive filler, eg. carbon black. The weight ratio of the first to the second polymer is preferably 0.3:1 to 2.5:1. The compositions preferably exhibit PTC behaviour.

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