Title:
CURABLE FLUOROPOLYETHER-BASED RUBBER COMPOSITION AND OPTICAL COMPONENT
Document Type and Number:
WIPO Patent Application WO/2020/100544
Kind Code:
A1
Abstract:
Provided are: a curable fluoropolyether-based rubber composition from which a cured product having good light transmissivity and excellent rubber strength is produced; and an optical component having a cured product layer of said composition. The curable fluoropolyether-based rubber composition contains: (A) a linear polyfluoro compound having at least two alkenyl groups in one molecule and a perfluoropolyether structure in a main chain; (B) a fluorine-containing organohydrogen siloxane which has at least two hydrogen atoms directly bonded to a silicon atom (SiH group) and has a monovalent perfluoroalkyl group or a monovalent perfluorooxyalkyl group or a divalent perfluoroalkylene group or a divalent perfluorooxyalkylene group in one molecule; (C) sodium fluoride; and (D) a platinum group metal-based catalyst in an amount of 0.1-2,000 ppm in terms of the mass of a platinum group metal atom with respect to component (A).
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Inventors:
KOSHIKAWA HIDENORI (JP)
Application Number:
PCT/JP2019/041600
Publication Date:
May 22, 2020
Filing Date:
October 24, 2019
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08K3/013; C08L71/00; C08K3/16; C08K5/56; C08L83/05
Foreign References:
| JP2014005328A | 2014-01-16 | |||
| JP2016216679A | 2016-12-22 | |||
| JP2010202857A | 2010-09-16 | |||
| JP2007012637A | 2007-01-18 | |||
| JP2990646B2 | 1999-12-13 | |||
| JP5246190B2 | 2013-07-24 | |||
| JP3239717B2 | 2001-12-17 | |||
| JP5459033B2 | 2014-04-02 | |||
| JP3562578B2 | 2004-09-08 | |||
| JP5653877B2 | 2015-01-14 | |||
| JP5956391B2 | 2016-07-27 | |||
| JP5735457B2 | 2015-06-17 |
Other References:
See also references of EP 3882313A4
Attorney, Agent or Firm:
PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (JP)
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