Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8450224
APP PUB NO 20100099318A1
SERIAL NO

12578839

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Abstract

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The present invention provides a water-dispersed acrylic PSA composition suitable for forming a PSA sheet. The PSA composition contains 100 parts by weight of an acrylic copolymer with a Tg of −70° C. to −50° C. obtained by polymerization of a monomer starting material containing 60 wt % or more of an alkyl (meth)acrylate with a C8-12 alkyl group and 5 wt % or less of a radical polymerizable monomer with a carboxyl group. When an adhesive sheet is formed therefrom, it exhibits an average SUS adhesive strength of 11 N/20 mm or greater, PP adhesive strength of 8.5 N/20 mm or greater, 80° C. hold time of 1 hour or longer, and gap height of 10 mm or less in a curved surface adhesion test.

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Patent Owner(s)

  • NITTO DENKO CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Suzuki, Toshihide Ibaraki, JP 80 509
Takahashi, Akiko Ibaraki, JP 72 303
Tosaki, Yutaka Ibaraki, JP 21 196
Wada, Shouhei Ibaraki, JP 13 46
Yamamoto, Kenichi Ibaraki, JP 178 1809

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