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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 11407925 B1

PDFFull Text
Date of Patent:
Aug. 09, 2022

Filed:

Apr. 04, 2018

Adhesive sheet and method of applying adhesive sheet to rough surface

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Hidetoshi Abe, Yamagata, JP;

Kengo Imamura, Tokyo, JP;

Katsuya Ono, Yamagata, JP;

Yoshihiko Takeda, Miyagi, JP;

Takeo Yamamoto, Yamagata, JP;

Assignee:

3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);

Attorney:

Vincent Pham

Primary Examiner:

Patricia L Nordmeyer

Int. Cl.
CPC ...
C09J 7/38 (2018.01); C09J 7/25 (2018.01); C08F 220/18 (2006.01); C08F 220/06 (2006.01); C08K 3/22 (2006.01); C09J 133/08 (2006.01); C09J 7/29 (2018.01); C08K 7/16 (2006.01); C08F 236/20 (2006.01);
U.S. Cl.
CPC ...
C09J 7/385 (2018.01); C08F 220/06 (2013.01); C08F 220/1808 (2020.02); C08F 236/20 (2013.01); C08K 3/22 (2013.01); C09J 7/255 (2018.01); C09J 7/29 (2018.01); C09J 7/38 (2018.01); C09J 133/08 (2013.01); C08K 7/16 (2013.01); C08K 2003/2237 (2013.01); C09J 2301/124 (2020.08); C09J 2301/16 (2020.08); C09J 2301/20 (2020.08); C09J 2301/302 (2020.08); C09J 2301/408 (2020.08); C09J 2301/412 (2020.08); C09J 2400/163 (2013.01); C09J 2433/00 (2013.01); C09J 2467/001 (2013.01); C09J 2467/006 (2013.01); Y10T 428/2891 (2015.01);
Abstract

An adhesive sheet of an embodiment of the present disclosure is an adhesive sheet including: a rigid resin film having a thickness of 80 micrometers to 500 micrometers, and a first pressure sensitive adhesive layer being disposed on or above a surface of the rigid resin film, wherein the first pressure sensitive adhesive layer includes elastic resin microspheres having a volume average particle diameter of 110 micrometers or greater and a tacky binder, and the first pressure sensitive adhesive layer has an uneven surface due to the presence of the microspheres.

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