Patent ID: 7709098

Claim:
A multi-layered thermally conductive sheet comprising: a first cross-linked acrylic thermally conductive sheet layer, and a second cross-linked acrylic thermally conductive sheet layer disposed on one or both surfaces of the first acrylic thermally conductive sheet layer; the first cross-linked acrylic thermally conductive sheet layer having an Asker C hardness of 60 or more, the first crosslinked acrylic thermally conductive sheet layer being obtained by cross-linking a cross-likable acrylic composition containing 10% by volume or more of a metal hydrate, the second cross-linked acrylic thermally conductive sheet layer having an Asker C hardness of 50 or less, the second cross-linked acrylic thermally conductive sheet layer being obtained by cross-linking a cross-linkable acrylic composition containing 5% by volume or more of a metal hydrate, and the first cross-linked acrylic thermally conductive sheet layer having half or less thickness with respect to thickness of the whole sheet.