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:
May. 19, 2026
Filed:
Nov. 15, 2019
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
An ultraviolet curable silicone adhesive composition which contains (A) an organopolysiloxane represented by formula (1) (wherein each Rrepresents a polymerizable group or a monovalent hydrocarbon group having 1-20 carbon atoms, provided that at least one of the Rmoieties represents a polymerizable group; Rrepresents an oxygen atom or an alkylene group having 1-20 carbon atoms; and m and n represent numbers satisfying m≥0, n≥1 and 1≤(m+n)≤1,000), (B) an organopolysiloxane resin which is composed of (a) an RSiOunit (wherein Rrepresents a monovalent hydrocarbon group having 1-10 carbon atoms) and (b) an SiOunit, with the molar ratio of the unit (a) to the unit (b) being 0.6-1.2:1, (C) a fine silica powder and (D) a photopolymerization initiator, and which does not contain a (meth)acrylate compound that does not have a siloxane structure. This ultraviolet curable silicone adhesive composition enables the achievement of a cured product that has good shape retainability and little curing shrinkage, while exhibiting excellent adhesiveness if used as a provisional fixing material.