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.:
Date of Patent:
Sep. 17, 2024
Filed:
May. 16, 2018
Daicel Corporation, Osaka, JP;
Akira Yamakawa, Himeji, JP;
Naoko Tsuji, Himeji, JP;
DAICEL CORPORATION, Osaka, JP;
Abstract
The present invention is to provide a curable composition for adhesive agents that cures at a low temperature and that can form a cured article having excellent heat resistance, crack resistance, and adhesive properties and tight bonding properties for adhereds. The present invention provides a curable composition for adhesive agents containing a polyorganosilsesquioxane (A) having a constituent unit represented by Formula (1) below; a mole ratio of a constituent unit represented by Formula (I) below to a constituent unit represented by Formula (II) below (constituent unit represented by Formula (I)/constituent unit represented by Formula (II)) being from 20 to 500; a proportion of the constituent unit represented by Formula (1) below and a constituent unit represented by Formula (4) below being from 55 to 100 mol % relative to a total amount (100 mol %) of siloxane constituent units; a number average molecular weight being from 2500 to 50000; and a molecular weight dispersity (weight average molecular weight/number average molecular weight) being from 1.0 to 4.0.