IDiyas

For the Inventor, By the Inventor

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 10696880 B1

PDFFull Text
Date of Patent:
Jun. 30, 2020

Filed:

Jan. 16, 2015

Polyester adhesive composition and adhesive sheet

Applicant:

Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;

Inventors:

Satomi Yoshie, Ibaraki, JP;

Shigeki Ishiguro, Ibaraki, JP;

Akiko Tanaka, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Osaka, JP;

Attorney:

Knobbe Martens Olson & Bear, LLP

Primary Examiner:

Elizabeth A Robinson

Assistant Examiner:

Thomas A Mangohig

Int. Cl.
CPC ...
C09J 175/06 (2006.01); C08G 18/36 (2006.01); C08G 18/79 (2006.01); C08G 18/42 (2006.01); C09J 167/02 (2006.01); C08G 18/80 (2006.01); C09J 7/38 (2018.01); C08J 7/04 (2020.01); C08G 18/66 (2006.01); C08G 63/16 (2006.01);
U.S. Cl.
CPC ...
C09J 175/06 (2013.01); C08G 18/36 (2013.01); C08G 18/4233 (2013.01); C08G 18/4252 (2013.01); C08G 18/6662 (2013.01); C08G 18/792 (2013.01); C08G 18/8009 (2013.01); C08G 63/16 (2013.01); C08J 7/0427 (2020.01); C09J 7/38 (2018.01); C09J 167/02 (2013.01); C08G 2170/40 (2013.01); C08J 2375/06 (2013.01); C09J 2201/618 (2013.01); C09J 2203/318 (2013.01); C09J 2467/00 (2013.01); C09J 2467/006 (2013.01);
Abstract

Provided are a polyester-based pressure-sensitive adhesive composition having high wetting ability and superior adherability and light peelability, and a pressure-sensitive adhesive sheet produced with such a pressure-sensitive adhesive composition. The polyester-based pressure-sensitive adhesive composition includes a polyester obtained by polycondensation of a difunctional or polyfunctional carboxylic acid and a diol; a fatty acid ester; and a crosslinking agent, wherein the polyester has a weight average molecular weight of 8,500 to 50,000, and the fatty acid ester has no additional functional group and has a molecular weight of 200 to 700. The polyester-based pressure-sensitive adhesive composition contains 10 to 150 parts by weight of the fatty acid ester based on 100 parts by weight of the polyester.

Find Patent Forward Citations

Loading…