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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 12077694 B1

PDFFull Text
Date of Patent:
Sep. 03, 2024

Filed:

Sep. 27, 2019

Pressure-sensitive adhesive sheet for surface protection

Applicants:

Arakawa Chemical Industries, Ltd., Osaka, JP;

Nitto Denko Corporation, Ibaraki, JP;

Inventors:

Keita Kume, Osaka, JP;

Yuki Hashimoto, Osaka, JP;

Akihiro Yamazaki, Osaka, JP;

Toru Higashimoto, Osaka, JP;

Eiichi Imoto, Ibaraki, JP;

Yoshio Nakagawa, Ibaraki, JP;

Shota Tanaka, Ibaraki, JP;

Kenichi Nishikawa, Ibaraki, JP;

Chihiro Yoshida, Ibaraki, JP;

Assignees:

ARAKAWA CHEMICAL INDUSTRIES, LTD., Osaka, JP;

NITTO DENKO CORPORATION, Ibaraki, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Scott R Walshon

Int. Cl.
CPC ...
C09J 7/38 (2018.01); C08F 220/14 (2006.01); C08F 220/18 (2006.01); C08F 220/20 (2006.01); C08G 18/12 (2006.01); C08G 18/24 (2006.01); C08G 18/32 (2006.01); C08G 18/40 (2006.01); C08G 18/61 (2006.01); C08G 18/62 (2006.01); C08G 18/78 (2006.01); C08G 77/16 (2006.01); C09J 7/29 (2018.01);
U.S. Cl.
CPC ...
C09J 7/385 (2018.01); C08F 220/14 (2013.01); C08F 220/1804 (2020.02); C08F 220/20 (2013.01); C08G 18/12 (2013.01); C08G 18/246 (2013.01); C08G 18/3206 (2013.01); C08G 18/4063 (2013.01); C08G 18/61 (2013.01); C08G 18/6254 (2013.01); C08G 18/7831 (2013.01); C08G 18/7837 (2013.01); C08G 77/16 (2013.01); C09J 7/29 (2018.01); C08G 2170/00 (2013.01); C09J 2203/306 (2013.01); C09J 2203/354 (2020.08); C09J 2301/162 (2020.08); C09J 2301/302 (2020.08); C09J 2301/414 (2020.08); C09J 2433/00 (2013.01); C09J 2475/00 (2013.01); C09J 2483/00 (2013.01);
Abstract

A surface-protective PSA sheet capable of reducing adherend damage and well maintaining appearance, etc is provided. The surface-protective PSA sheet capable of reducing adherend damage and well maintaining appearance, etc., comprises a surface layer, a resin substrate layer and a PSA layer, and has a multilayer structure with the resin substrate layer placed between the surface layer and the PSA layer, wherein the surface layer is a layer obtainable by curing a heat-curable composition comprising the following components:

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