C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 27/16 (2006.01) C08J 5/00 (2006.01) C08K 3/04 (2006.01) C08L 27/22 (2006.01) C08L 33/12 (2006.01) C09D 127/16 (2006.01) C09D 133/12 (2006.01)
Patent
CA 2486702
The present invention relates to a composition comprising, by weight, the total being 100%: A) ~40 to 80% of vinylidene fluoride homopolymers or copolymers, (PVDF); B) ~10 to 40% of PMMA; and C) ~10 to 40% of a conductive filler. wherein PMMA is methyl methacrylate homopolymers and copolymers containing at least 50 wt% methyl methacrylate. This composition has a PTC effect and is advantageously used in the form of a film (paint) covering a substrate. The composition of the invention is dissolved in a solvent and then spread over a substrate and the solvent evaporated. The metal terminals for connection to the electrical circuit may be placed at the ends of the coating before or after application. The invention also relates to a composite, namely the substrate covered with the PTC composition described above.
Bonnet Anthony
Caupin Henri-Jean
Korzhenko Alexander
Lechartier Corinne
Rivas Nadine
Atofina
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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