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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10703941 B1

PDFFull Text
Date of Patent:
Jul. 07, 2020

Filed:

Sep. 26, 2014

Electrically peelable adhesive composition and electrically peelable pressure sensitive adhesive sheet, and method for using electrically peelable pressure sensitive adhesive sheet

Applicant:

Lintec Corporation, Itabashi-ku, JP;

Inventors:

Haruya Yamada, Warabi, JP;

Kiichiro Kato, Saitama, JP;

Assignee:

LINTEC CORPORATION, Itabashi-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Scott R Walshon

Int. Cl.
CPC ...
C09J 133/08 (2006.01); C09J 9/00 (2006.01); C08F 220/18 (2006.01); C08L 71/02 (2006.01); C09J 133/14 (2006.01); C08L 63/00 (2006.01); C09J 7/20 (2018.01); B32B 7/06 (2019.01); B32B 7/12 (2006.01); C09J 5/00 (2006.01);
U.S. Cl.
CPC ...
C09J 133/08 (2013.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); C08F 220/18 (2013.01); C08L 63/00 (2013.01); C08L 71/02 (2013.01); C09J 5/00 (2013.01); C09J 7/20 (2018.01); C09J 9/00 (2013.01); C09J 133/14 (2013.01); B32B 2307/202 (2013.01); B32B 2307/748 (2013.01); B32B 2405/00 (2013.01); B32B 2451/00 (2013.01); C08G 2650/50 (2013.01); C09J 2201/606 (2013.01); C09J 2203/31 (2013.01); C09J 2205/302 (2013.01); C09J 2433/00 (2013.01); C09J 2471/00 (2013.01);
Abstract

An electrically peelable pressure sensitive adhesive sheet has a pressure sensitive adhesive layer formed of an electrically peelable pressure sensitive adhesive composition comprising an acrylic copolymer (A) comprising 1 to 99 mass % of a constituent unit (a1) derived from a compound represented by the following general formula (a1), and a surfactant (B). The electrically peelable pressure sensitive adhesive sheet has high adhesion before voltage application, but the adhesion can be effectively decreased by voltage application for a short time. wherein Rrepresents a hydrogen atom or a methyl group, Rrepresents an alkylene group having 1 to 5 carbon atoms that is unsubstituted or has a substituent, and Rrepresents an alkyl group having 1 to 8 carbon atoms that is unsubstituted or has a substituent; and a value of n is an integer of 1 or more.

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