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Title:
SOLVENT-TYPE CURABLE ORGANOPOLYSILOXANE COMPOSITION, RELEASE SHEET, AND METHOD FOR PRODUCING RELEASE SHEET
Document Type and Number:
WIPO Patent Application WO/2019/124419
Kind Code:
A1
Abstract:
[Problem] To provide: a solvent-type curable organopolysiloxane composition which has excellent handling workability including transportability in a state in which the content of an organic solvent is low, has excellent wettability/coatability to sheet-like substrates such as plastic films even when diluted with a large amount of organic solvent in a release sheet production process, and is capable of forming a release coating layer having a good release force and excellent stability over time; a release sheet using the composition; and a method for producing the release sheet. [Solution] The present invention provides a solvent-type curable organopolysiloxane composition containing: (A) an organopolysiloxane having at least three C4-12 alkenyl groups in the molecule and a viscosity of 5,000-100,000 mPa⋅s; (B) an organohydrogenpolysiloxane; (C) a hydrosilylation catalyst; (D) a hydrosilylation reaction inhibitor; and (E) an organic solvent, wherein the content of a vinyl (CH2=CH-) moiety in the alkenyl group is 0.1-5.0 mass%.

Inventors:
TANAKA Hidefumi (2-2, Chigusakaiga, Ichihara-shi Chiba 08, 〒2990108, JP)
ENDO Syuji (2-2, Chigusakaiga, Ichihara-shi Chiba 08, 〒2990108, JP)
NISHIJIMA Kazuhiro (2-2, Chigusakaiga, Ichihara-shi Chiba 08, 〒2990108, JP)
ONODERA Satoshi (2-2, Chigusakaiga, Ichihara-shi Chiba 08, 〒2990108, JP)
TANI Toshikazu (5-1, Otemachi 1-chom, Chiyoda-ku Tokyo 04, 〒1000004, JP)
Application Number:
JP2018/046704
Publication Date:
June 27, 2019
Filing Date:
December 19, 2018
Export Citation:
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Assignee:
DOW TORAY CO., LTD. (2-24, Higashi-Shinagawa 2-Chome Shinagawa-k, Tokyo 17, 〒1408617, JP)
International Classes:
C08L83/07; C08J7/04; C08L83/05; C09D5/00; C09D7/40; C09D183/05; C09D183/07; B32B27/00; C09D7/61; C09D7/63
Domestic Patent References:
WO2016138660A12016-09-09
Foreign References:
JP2015124262A2015-07-06
JP2017503903A2017-02-02
JP2015532312A2015-11-09
JP2015532311A2015-11-09
JP2011026582A2011-02-10
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