Shin-Etsu Chemical Co., Ltd.

Yasuhisa Ishihara

Toshiyuki Ozai

Akihiro Endo

Hisaharu Yamaguchi

Junichi Tsukada

Takahiro Maruyama

Masahiro Moteki

Takanori Ito

Takumi Fukamachi

Yuya Hironaka

Toru Tsuchiya

Katsuyuki Tanaka

The present invention is a cured material of a thermal conductive silicone composition, the composition containing: 6 to 40 volume % of an organopolysiloxane as a component (A), and 60 to 94 volume % of a heat conductive filler as a component (B), the heat conductive filler containing; (B-i) unsintered crushed aluminum nitride having an average particle size of 40 μm or more and having 1 mass % or less of a fine powder with a particle size of 5 μm or less, and (B-ii) a heat conductive material other than the unsintered crushed aluminum nitride having an average particle size of 1 μm or more, where the component (B-ii) content is 30 to 65 volume %. This provides a cured material of a thermal conductive silicone composition excellent in handling properties and having a high thermal conductivity.

Cured material of thermal conductive silicone composition

A thermal conductive composite silicone rubber sheet includes a thermal conductive silicone rubber sheet and a thermosoftening silicone resin layer with a thickness of 0.5 to 10 μm on one side of the thermal conductive silicone rubber sheet, the thermosoftening silicone resin layer having an viscosity at 70° C. of 700 Pa·s or lower, where the thermosoftening silicone resin layer has adhesion of 0.5 N/25 mm or higher at a normal temperature and the thermal conductive composite silicone rubber sheet has a thermal resistance lower than a value obtained by adding 0.3 cm2·K/W per one layer of one side of the thermosoftening silicone resin layer to a thermal resistance of the thermal conductive silicone rubber sheet. A thermal conductive composite silicone rubber sheet provided with an adhesive layer on one side of a thermal conductive silicone rubber sheet, makes it possible to impart adhesion without sacrificing thermal conductivity.

Thermal conductive composite silicone rubber sheet

A thermally conductive sheet in which a cured layer of a thermally conductive silicone composition is laminated on one or both sides of a synthetic resin film layer of aromatic polyimide, etc. having excellent heat resistance, electrical insulation, and mechanical strength, wherein good thermal conductivity, good insulation, and strong interlayer adhesion are provided because the thermally conductive silicone composition includes 250 to 600 wt. % of an aspherical thermally conductive filler material, which contains no more than 80 ml/100 g of a DOP oil absorption amount and an organic silicon compound component including an adhesion imparting agent, relative to 100 wt. % of the organic silicon compound component, and moreover the thermally conductive sheet with no brittleness during use can be made using continuous molding.

Thermally conductive sheet

A thermoconductive silicone composition which has (A) an organopolysiloxane as a base polymer and includes (B) a thermoconductive filler, wherein the thermoconductive filler is 60-85 vol % of the thermoconductive silicone composition, and 40-60 vol % of the thermoconductive filler is aluminum nitride having an average particle diameter of at least 50 &#x3bc;m.

Thermoconductive silicone composition

Provided is a thermally conductive composite silicone rubber sheet formed by laminating an acrylic pressure-sensitive adhesive layer on one side of a non-pressure-sensitive adhesive/high-hardness thermally conductive silicone rubber sheet, wherein the acrylic pressure-sensitive adhesive layer is a cured product of an acrylic pressure-sensitive adhesive composition containing: an acrylic pressure-sensitive adhesive made of a polymer of a monomer mixture in which 5-50 mol % of hydroxyl group-containing monomers are contained in all of the constituent monomers; and 0.05-5 parts by mass of a chelate-based curing agent with respect to 100 parts by mass of the acrylic pressure-sensitive adhesive, and the thermally conductive silicone rubber sheet has a thermally conductive silicone rubber layer which, as a cured product of a thermally conductive silicone composition containing a thermally conductive filler, has a durometer A hardness of 60-96.

Thermally conductive composite silicone rubber sheet and method for manufacturing same

A heat conductive sheet comprising a cured product layer of a heat conductive silicone composition on one or both surfaces of a glass cloth sealed using a cured product of a heat conductive resin composition. The heat conductive silicone composition includes an organic silicon compound component and an aspherical heat conductive filler. The amount of the heat conductive filler is 250 to 600 parts by mass with respect to 100 parts by mass of the organic silicon compound component, and the heat conductive filler has a DOP oil absorption of not more than 80 ml/100 g. The heat conductive sheet can be continuously manufactured by coating molding and wound into a roll even with the use of an inexpensive aspherical heat conductive filler, and has high heat conductivity, low thermal contact resistance, and high insulating properties.

Heat conductive sheet

A thermally conductive sheet including a glass cloth filled with a thermally conductive resin composition, one or both surfaces of the glass cloth being layered with a cured, thermally conductive silicone composition, wherein the thermally conductive silicone composition comprises a silicone component and thermally conductive filler (C) of an amount of 1,200 to 2,000 parts by mass, relative to 100 parts by mass of the silicone component, the thermally conductive filler (C) has an average particle size smaller than 15 &#x3bc;m, and an amount of particles having a particle size of 45 &#x3bc;m or larger is 0 to 3 mass % and an amount of particles having a particle size of 75 &#x3bc;m or larger is 0 to 0.01 mass %, based on an amount of the thermally conductive filler (C).

Provided by the present invention are a thermally conductive sheet feeder and a method for feeding a thermally conductive sheet, which are a thermally conductive sheet feeder and a method for feeding a thermally conductive sheet using an emboss carrier tape, wherein the emboss carrier tape provided on its surface with a plurality of pockets, each having one thermally conductive sheet accommodated therein, and a cover film to protect surface of the emboss carrier tape are rolled up in a reel-like form.

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Annaka, Japan

Yasuhisa Ishihara