Title:
TRANSPARENT TWO-SIDED ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2011/129200
Kind Code:
A1
Abstract:
Disclosed is a transparent two-sided adhesive sheet which has excellent traceability for uneven or lumpy surfaces of printed parts when the adhesive sheet is adhered onto a material of interest, and also has excellent workability such as cutting properties.
The transparent two-sided adhesive sheet is characterized by comprising an intermediate resin layer (A) and pressure-sensitive adhesive agent layers (B) that serve as a front surface layer and a back surface layer, wherein each of the layers contains at least one (meth)acrylic acid ester (co)polymer as a base resin, the intermediate resin layer (A) has a larger shear storage modulus (G'(A)) than those of the pressure-sensitive adhesive agent layers (B) at a temperature of 0 to 100˚C and a frequency of 1 Hz, and the indentation hardness (Asker C2 hardness) of the whole of the sheet is 10 to 80.
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Inventors:
NIIMI, Kahoru (Inc. 5-8, Mitsuya-cho, Nagahama-sh, Shiga 60, 〒5268660, JP)
新美 かほる (〒60 滋賀県長浜市三ツ矢町５番８号 三菱樹脂株式会社長浜工場内 Shiga, 〒5268660, JP)
YOSHIKAWA, Hidejirou (Inc. 5-8, Mitsuya-cho, Nagahama-sh, Shiga 60, 〒5268660, JP)
吉川 秀次郎 (〒60 滋賀県長浜市三ツ矢町５番８号 三菱樹脂株式会社長浜工場内 Shiga, 〒5268660, JP)
新美 かほる (〒60 滋賀県長浜市三ツ矢町５番８号 三菱樹脂株式会社長浜工場内 Shiga, 〒5268660, JP)
YOSHIKAWA, Hidejirou (Inc. 5-8, Mitsuya-cho, Nagahama-sh, Shiga 60, 〒5268660, JP)
吉川 秀次郎 (〒60 滋賀県長浜市三ツ矢町５番８号 三菱樹脂株式会社長浜工場内 Shiga, 〒5268660, JP)
Application Number:
JP2011/058410
Publication Date:
October 20, 2011
Filing Date:
April 01, 2011
Export Citation:
Assignee:
MITSUBISHI PLASTICS, INC. (1-2-2, Nihonbashi-Hongokucho Chuo-k, Tokyo 21, 〒1030021, JP)
三菱樹脂株式会社 (〒21 東京都中央区日本橋本石町１丁目２番２号 Tokyo, 〒1030021, JP)
NIIMI, Kahoru (Inc. 5-8, Mitsuya-cho, Nagahama-sh, Shiga 60, 〒5268660, JP)
新美 かほる (〒60 滋賀県長浜市三ツ矢町５番８号 三菱樹脂株式会社長浜工場内 Shiga, 〒5268660, JP)
YOSHIKAWA, Hidejirou (Inc. 5-8, Mitsuya-cho, Nagahama-sh, Shiga 60, 〒5268660, JP)
三菱樹脂株式会社 (〒21 東京都中央区日本橋本石町１丁目２番２号 Tokyo, 〒1030021, JP)
NIIMI, Kahoru (Inc. 5-8, Mitsuya-cho, Nagahama-sh, Shiga 60, 〒5268660, JP)
新美 かほる (〒60 滋賀県長浜市三ツ矢町５番８号 三菱樹脂株式会社長浜工場内 Shiga, 〒5268660, JP)
YOSHIKAWA, Hidejirou (Inc. 5-8, Mitsuya-cho, Nagahama-sh, Shiga 60, 〒5268660, JP)
International Classes:
C09J7/02; B32B27/00; B32B27/30; C09J133/04
Attorney, Agent or Firm:
TAKEUCHI, ICHIZAWA & ASSOCIATES (6F. Akasaka 2-chome Annex, 19-8 Akasaka 2-chome, Minato-k, Tokyo 52, 〒1070052, JP)
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