ULTRAVIOLET-CURABLE PRESSURE-SENSITIVE SILICONE ADHESIVE COMPOSITION AND CURED OBJECT OBTAINED THEREFROM

Title:

ULTRAVIOLET-CURABLE PRESSURE-SENSITIVE SILICONE ADHESIVE COMPOSITION AND CURED OBJECT OBTAINED THEREFROM

Document Type and Number:

WIPO Patent Application WO/2020/022140

Kind Code:

A1

Abstract:

A composition comprising: (A) an organopolysiloxane having, in the molecule, two groups represented by formula (1) (R1 represents a C1-20 monovalent hydrocarbon group, R2 represents an oxygen atom, etc., R3 represents an acryloyloxyalkyl group, etc., p is a number of 0-10, and a is a number of 1-3.); (B) a monofunctional (meth)acrylate compound containing no siloxane structure; (C) an organopolysiloxane resin comprising (a) R4 3SiO1/2 units (R4 is a C1-10 monovalent hydrocarbon group) and (b) SiO4/2 units, the molar ratio of the units (a) to the units (b) being (0.4-1.2):1; (D) an organopolysiloxane resin comprising (c) units represented by formula (2) (R1 to R3, a, and p are the same as defined above), (d) R4 3SiO1/2 units (R4 is the same as defined above), and (e) SiO4/2 units, the molar ratio of the sum of the units (c) and the units (d) to the units (e) being (0.4-1.2):1; and (E) a photopolymerization initiator. The composition gives cured objects which, when used as temporary fixers, are excellent in terms of tackiness and modulus.

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Inventors:

OTAKE KOHEI (JP)
KITAGAWA TAICHI (JP)
MATSUMOTO NOBUAKI (JP)
OZAI TOSHIYUKI (JP)
OGAWA YOSHINORI (JP)

Application Number:

PCT/JP2019/028076

Publication Date:

January 30, 2020

Filing Date:

July 17, 2019

Export Citation:

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Assignee:

SHINETSU CHEMICAL CO (JP)

International Classes:

C09J183/07; C08F290/06; C09J11/04; C09J11/06

Domestic Patent References:

WO2018225430A1	2018-12-13
WO2019065398A1	2019-04-04

Foreign References:

JP2002212520A	2002-07-31
JP2008031307A	2008-02-14
JP2010132755A	2010-06-17
JP2016156004A	2016-09-01
JP2012144704A	2012-08-02
JPS5825738B2	1983-05-30
JP2631098B2	1997-07-16
JPS5234064B2	1977-09-01
JPS41882B1	1966-01-27

Other References:

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