C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 27/20 (2006.01) C08L 27/18 (2006.01) C08L 29/10 (2006.01) H05B 3/10 (2006.01) C08L 27/12 (2006.01)
Patent
CA 2116184
ABSTRACT A composition which contains 35 to 85% by weight of a copolymer of tetrafluoroethylene and hexafluoropropylene (FEP), 10 to 60% by weight of a copolymer of tetrafluoroethylene and perfluoropropylvinyl ether (PFA), and 5 to 60% by weight of melt-processable polytetrafluoroethylene (PTFE). The composition is particularly suitable for use as an insulating material on a substrate such as a resistive element in a conductive polymer heating cable. The composition has good physical properties, low creep, and low secondary crystallization, and exhibits little stress-cracking when exposed to elevated temperatures.
Chu Edward F.
Reddy Vijay
Saltman Robert P.
Fetherstonhaugh & Co.
Raychem Corporation
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