Nippon Valqua Industries, Ltd.

Valqua, Ltd.

Hirohisa Imada

Naoki Osumi

Tomomitsu Mochizuki

Tomoaki Yokota

Provided are an elastomer composition including a first fluoroelastomer that is a copolymer of tetrafluoroethylene and perfluoro (alkoxyvinyl ether) and a second fluoroelastomer different from the first fluoroelastomer, and a sealing material including a crosslinked product of the elastomer composition.

Elastomer composition and sealing material

A thermally conductive resin composition containing (A1) a fluorine-based compound having one to two terminal SiH group(s), in which a content of molecules having two such groups is 60 to 100 mole %, (B1) a fluorine-based compound having one to two terminal alkenyl group(s), in which a content of molecules having two such groups is 60 to 100 mole %, (A2) a fluorine-based compound in which a content of molecules having two terminal SiH groups is 0 to 40 mole %, (B2) a fluorine-based compound in which a content of molecules having two terminal alkenyl groups is 0 to 40 mole %, and (C) a thermally conductive filler, and satisfying, in connection with the content of the fluorine-based compounds, relation of [(A1)+(B1)]/[(A2)+(B2)]=20/80 to 80/20, (A1)/(B1)=20/80 to 80/20, and (A2)/(B2)=20/80 to 80/20, as well as a thermally conductive sheet including the same are provided.

Thermally conductive resin composition and thermally conductive sheet including the same

A shaped product obtained by allowing a polymer (A) and a compound (B) to undergo hydrosilylation reaction, the polymer (A) and the compound (B) being contained in an uncrosslinked composition including the polymer (A), the compound (B) and a functional filler (C), wherein the polymer (A) is crosslinked by the compound (B) and the resulting crosslinked product is filled with the functional filler (C) dispersed therein, the polymer (A) includes (A1) a polymer of a perfluoropolyether skeleton having one alkenyl group and (A2) a polymer of a perfluoropolyether skeleton having two hydrosilyl [SiH] groups, the compound (B) includes (B1) a compound having two alkenyl groups and/or (B2) a compound having three hydrosilyl groups, and in the uncrosslinked composition, the content of the polymer (A) is 50 to 98 parts by weight based on 100 parts by weight of the total amount of the polymer (A) and the compound (B), and the content of the functional filler (C) is 50 to 500 parts by weight based on 100 parts by weight of the total amount of the polymer (A) and the compound (B).

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Gojo, Japan

Hirohisa Imada