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Title:
ULTRAVIOLET CURABLE SILICONE COMPOSITION FOR STEREOLITHOGRAPHY AND CURED PRODUCT OF SAME
Document Type and Number:
WIPO Patent Application WO/2020/026748
Kind Code:
A1
Abstract:
According to the present invention, an ultraviolet curable silicone composition for stereolithography, which contains (A) an organopolysiloxane that has two groups represented by formula (1) (wherein each R1 independently represents a monovalent hydrocarbon group having 1-20 carbon atoms; R2 represents an oxygen atom or the like; R3 represents an acryloyloxyalkyl group or the like; p represents a number satisfying 0 ≤ p ≤ 10; and a represents a number satisfying 1 ≤ a ≤ 3) in each molecule, (B) an organopolysiloxane resin that is composed of (a) a unit represented by formula (2) (wherein R1-R3, a and p are as defined above), (b) an R4 3SiO1/2 unit (wherein each R4 independently represents a monovalent hydrocarbon group having 1-10 carbon atoms) and (c) an SiO4/2 unit, and wherein the molar ratio of the total of the unit (a) and the unit (b) to the unit (c) is within the range of 0.6-1.2:1 and (C) a photopolymerization initiator has a viscosity that is applicable to a stereolithography system such as lifting system and forms a cured product which has excellent physical properties of rubber.

Inventors:
OTAKE KOHEI (JP)
MATSUMOTO NOBUAKI (JP)
KITAGAWA TAICHI (JP)
OZAI TOSHIYUKI (JP)
YAGINUMA ATSUSHI (JP)
Application Number:
PCT/JP2019/027490
Publication Date:
February 06, 2020
Filing Date:
July 11, 2019
Export Citation:
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Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08F290/06; C08F2/50
Domestic Patent References:
WO2018003381A12018-01-04
Foreign References:
JP2016190977A2016-11-10
JP2016191001A2016-11-10
JP2006002087A2006-01-05
JP2007214543A2007-08-23
JP2008074982A2008-04-03
JP2014001341A2014-01-09
JP2016108458A2016-06-20
JP2019085488A2019-06-06
JP2019085489A2019-06-06
JP2012111226A2012-06-14
JP2012506933A2012-03-22
JP2006002087A2006-01-05
Attorney, Agent or Firm:
PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (JP)
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