Adhesive composition and adhesive film

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8426543
APP PUB NO 20100069593A1
SERIAL NO

12516363

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An adhesive composition of the present invention includes, as a main component, a polymer produced by copolymerization of a monomer composition including: styrene; a (meth)acrylic acid alkyl ester having a chain structure; a (meth)acrylic acid ester having an aliphatic ring; and a (meth)acrylic acid ester having an aromatic ring, wherein: the styrene is contained in a range of 40 to 69 parts by mass; the (meth)acrylic acid alkyl ester having the chain structure is contained in a range of 20 to 30 parts by mass; the (meth)acrylic acid ester having the aliphatic ring is contained in a range of 10 to 25 parts by mass; and the (meth)acrylic acid ester having the aromatic ring is contained in a range of 1 to 5 parts by mass, where the total amount of the above components is 100 parts by mass. This allows for provision of an adhesive composition having high adhesive strength under high-temperature environment, as well as high heat resistance, high alkali resistance, and easiness in stripping from semiconductor wafers and the like even after high-temperature processing.

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Patent Owner(s)

Patent OwnerAddress
TOKYO OHKA KOGYO CO LTDKANAGAWA KANAGAWA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asai, Takahiro Kawasaki, JP 300 3450
Inao, Yoshihiro Kawasaki, JP 46 445
Misumi, Koichi Kawasaki, JP 68 261
Miyanari, Atsushi Kawasaki, JP 33 429
Nakamura, Akihiko Kawasaki, JP 131 1409

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