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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 11479621 B1

PDFFull Text
Date of Patent:
Oct. 25, 2022

Filed:

Jun. 12, 2019

Uv-curable composition and adhesive film, adhesive tape and bonding member containing the same

Applicant:

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

Inventors:

Lijing Zhang, Shanghai, CN;

Weigang Lin, Danyang, CN;

Assignee:

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

Attorney:

Jean A. Lown

Primary Examiner:

Jessica Whiteley

Int. Cl.
CPC ...
C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); C09J 7/38 (2018.01); C08F 220/18 (2006.01); C08F 220/32 (2006.01); C08F 220/06 (2006.01); C08F 220/14 (2006.01); C08F 220/20 (2006.01); C08F 220/36 (2006.01); C08F 220/56 (2006.01); C08F 226/06 (2006.01); C08G 59/24 (2006.01); C08K 5/37 (2006.01); C08L 23/08 (2006.01);
U.S. Cl.
CPC ...
C08F 2/50 (2013.01); C08F 220/06 (2013.01); C08F 220/14 (2013.01); C08F 220/1804 (2020.02); C08F 220/1808 (2020.02); C08F 220/20 (2013.01); C08F 220/325 (2020.02); C08F 220/36 (2013.01); C08F 220/56 (2013.01); C08F 226/06 (2013.01); C08G 59/245 (2013.01); C08K 5/37 (2013.01); C08L 23/0853 (2013.01); C09J 7/385 (2018.01); C09J 2301/122 (2020.08); C09J 2301/124 (2020.08); C09J 2301/162 (2020.08); C09J 2301/302 (2020.08); C09J 2301/414 (2020.08); C09J 2423/04 (2013.01); C09J 2431/00 (2013.01); C09J 2433/00 (2013.01);
Abstract

The present disclosure relates to a UV-curable composition and adhesive film, adhesive tape and bonding member containing the same. Said UV-curable composition is a UV-curable composition catalyzable by photobase. Said UV-curable composition comprises (1) acrylic polymer and/or ethylene-vinyl acetate copolymer; (2) curable components, comprising polyfunctional mercaptan and polyfunctional epoxy resin; and a (3) photobase generator. The composition of the present disclosure can be coated into an adhesive tape or adhesive film; such adhesive tape or film possesses initial adhesion before UV curing is carried out and can have the strength of a semi-structural adhesive or a structural adhesive after UV curing is carried out.

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