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Title:
ULTRAVIOLET CURABLE ORGANOPOLYSILOXANE COMPOSITION, SILICONE GEL CURED PRODUCT AND METHOD FOR PRODUCING SAME, AND PRESSURE SENSOR
Document Type and Number:
WIPO Patent Application WO/2019/130960
Kind Code:
A1
Abstract:
An ultraviolet curable organopolysiloxane composition which contains: (A) a linear or branched organopolysiloxane which contains, as monovalent substituents bonded to a silicon atom at an end of the molecular chain, at least three groups represented by formula (1) and/or formula (2) in each molecule, while having the main chain composed of repeated diorganosiloxane units (in the formulae, a represents a number of 1-3; and the broken line represents a bonding hand); (B) a linear or branched organopolysiloxane which contains at least two groups represented by formula (3) in each molecule, while having the main chain composed of repeated diorganosiloxane units (in the formula, R1 represents an alkenyl group; R2 represents a monovalent hydrocarbon group; and b represents a number of 1-3); and (C) a photoinitiator. With use of this ultraviolet curable organopolysiloxane composition, the hardness of a cured product obtained therefrom is easily controlled, and good surface curability and good curability in deep portions are achieved even in the presence of oxygen. Consequently, this ultraviolet curable organopolysiloxane composition enables the achievement of a silicone gel (a gel-like cured product) which has been cured at a substantially uniform crosslinking density (with a substantially uniform penetration) without depending on the irradiance of ultraviolet light (the amount of irradiation energy).

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Inventors:
MATSUDA TSUYOSHI (JP)
SAKAMOTO TAKAFUMI (JP)
Application Number:
PCT/JP2018/043727
Publication Date:
July 04, 2019
Filing Date:
November 28, 2018
Export Citation:
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Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08L83/07; C08F299/08; G01L9/00
Domestic Patent References:
WO2009044885A12009-04-09
Foreign References:
JP2016056330A2016-04-21
JPS60118712A1985-06-26
JP2017179083A2017-10-05
JP2005144923A2005-06-09
JPS62212415A1987-09-18
JPH0977951A1997-03-25
JP2007214543A2007-08-23
JP2008195931A2008-08-28
JPH0617435B21994-03-09
JP3894873B22007-03-22
JP2001064593A2001-03-13
JP2005040749A2005-02-17
JP2013253166A2013-12-19
Other References:
See also references of EP 3733779A4
Attorney, Agent or Firm:
PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (JP)
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