Title:
METHOD FOR PRODUCING SILICONE POLYMER
Document Type and Number:
WIPO Patent Application WO/2021/182329
Kind Code:
A1
Abstract:
A production method for obtaining a stable silicone polymer is provided in which no washing step is necessary and, hence, a great improvement in yield is attained. The method for producing a silicone polymer comprises: hydrolyzing at least one silane compound selected from among compounds represented by the general formula RaSi(OR1)4-a (1) (wherein R represents a hydrogen atom or a monovalent organic group, R1 is a monovalent organic group, and a is an integer of 1-2) and compounds represented by the general formula Si(OR2)4 (2) (wherein R2 represents a monovalent organic group) in the presence of a quaternary ammonium compound and water; and thereafter bringing the resultant hydrolysate into contact with a cation-exchange resin.
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Inventors:
KATO HIDETOSHI (JP)
SEKI HIROYASU (JP)
SEKI HIROYASU (JP)
Application Number:
PCT/JP2021/008698
Publication Date:
September 16, 2021
Filing Date:
March 05, 2021
Export Citation:
Assignee:
TORAY FINECHEMICALS CO LTD (JP)
International Classes:
C08G77/06; C08G77/18; C08G77/34
Domestic Patent References:
| WO2019156000A1 | 2019-08-15 | |||
| WO2017030090A1 | 2017-02-23 | |||
| WO2013069449A1 | 2013-05-16 |
Foreign References:
| JP2019203067A | 2019-11-28 | |||
| JP2017048365A | 2017-03-09 | |||
| JP4530113B2 | 2010-08-25 | |||
| JP6256775B2 | 2018-01-10 | |||
| JP2016011411A | 2016-01-21 | |||
| JP4409397B2 | 2010-02-03 |
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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