Nitto-Denko Corporation

Hiroki Ieda

Akira Hirao

Tatsuya Suzuki

Kenji Furuta

Akira Chinen

Minami Watanabe

Provided is a laminate sheet in which a first sheet, a PSA layer and a second sheet are laminated in this order. Of the first and second sheets, at least one is a release liner having a release face on the side facing the PSA layer. The PSA layer has a thickness of 200 &#x3bc;m or greater. The first sheet has a tensile modulus of 1000 MPa or greater and the second sheet has a tensile modulus of 500 MPa or less.

Laminate sheet and roll

Provided is a thermally conductive PSA sheet that comprises a PSA layer comprising a thermally conductive filler. The PSA sheet has a thermal resistance less than 6.0 cm&#xb7;K/W, and also has an adhesive strength N1 at 30 minutes of standing at 23&#xb0; C. after applied to a stainless steel plate and an adhesive strength N2 at 23&#xb0; C. after subjected to 5 minutes of heating at 80&#xb0; C. after applied to a stainless steel plate, satisfying N2/N1&#x2265;2.

Thermally conductive pressure-sensitive adhesive sheet

Provided is a PSA sheet that achieves both bonding reliability at a high temperature and reduction of outgassing. The PSA sheet provided by this invention comprises a substrate layer and a PSA layer provided to one face of the substrate layer. The PSA sheet exhibits a 180&#xb0; peel strength of 1 N/20 mm or greater to stainless steel at 60&#xb0; C. It has an amount of thermally released gas of 10 &#x3bc;g/cmor less, determined at 130&#xb0; C. for 30 minutes by GC-MS.

Growing community of inventors

Ibaraki, Japan

Hiroki Ieda