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Title:
ULTRAVIOLET CURABLE SILICONE ADHESIVE COMPOSITION AND CURED PRODUCT OF SAME
Document Type and Number:
WIPO Patent Application WO/2020/116127
Kind Code:
A1
Abstract:
An ultraviolet curable silicone adhesive composition which contains (A) an organopolysiloxane represented by formula (1) (wherein each R1 represents a polymerizable group or a monovalent hydrocarbon group having 1-20 carbon atoms, provided that at least one of the R1 moieties represents a polymerizable group; R2 represents 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 R3 3SiO1/2 unit (wherein R3 represents a monovalent hydrocarbon group having 1-10 carbon atoms) and (b) an SiO4/2 unit, 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.

Inventors:
KITAGAWA TAICHI (JP)
MATSUMOTO NOBUAKI (JP)
OTAKE KOHEI (JP)
Application Number:
PCT/JP2019/044825
Publication Date:
June 11, 2020
Filing Date:
November 15, 2019
Export Citation:
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Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C09J183/07; C09J7/38; C09J11/04; C09J11/06; C09J11/08
Domestic Patent References:
WO2012036209A12012-03-22
WO2019009026A12019-01-10
Foreign References:
JP2016190977A2016-11-10
JP2007191637A2007-08-02
JP2005075959A2005-03-24
JP2004155832A2004-06-03
JP5825738B22015-12-02
JP2631098B21997-07-16
JP5234064B22013-07-10
JP5989417B22016-09-07
Other References:
FENG, X. ET AL.: "Competing fracture in kinetically controlled transfer printing", LANGMUIR, vol. 23, no. 25, December 2007 (2007-12-01), pages 12555 - 12560, XP055716752
JOHN A. ROGERS: "Nature Materials", vol. 6, 11 December 2005, NATURE PUBLISHING GROUP, article "Transfer printing by kinetic control of adhesion to an elastomeric stamp", pages: 33 - 38
Attorney, Agent or Firm:
PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (JP)
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