Title:
LIQUID COMPOSITION FOR SILICONE RUBBER SPHERICAL PARTICLES, SILICONE RUBBER SPHERICAL PARTICLES AND PRODUCTION METHOD THEREFOR, AND SILICONE COMPOSITE PARTICLES AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/276648
Kind Code:
A1
Abstract:
The present invention is a liquid composition for silicone rubber spherical particles, the liquid composition comprising: (A) a polysiloxane represented by general formula (1) and having at least two alkenyl groups per molecule thereof; (B) an organohydrogenpolysiloxane represented by general formula (2) and having at least two hydrogen atoms bonded to a silicon atom per molecule thereof; and (C) a hydrosilylation reactive catalyst. Consequently, provided are silicone rubber spherical particles that are decomposed by cleaving a crosslinked structure due to an external stimulus or the like in the natural environment. (1) [R1 is an alkenyl group. R2 is a divalent hydrocarbon group. R3 is an alkyl group or an alkenyl group. X is an ester group. n satisfies 1≤n≤1,000.] (2) [R4 is a hydrogen atom, a monovalent hydrocarbon group, or an alkoxy group. R5 is a monovalent hydrocarbon group. p, q, and r satisfy 0≤p≤200, 1≤q≤200, and 0≤r≤200.]
Inventors:
OKI TAKAHITO (JP)
INOKUCHI YOSHINORI (JP)
AOKI SHUNJI (JP)
KIMURA TSUNEO (JP)
INOKUCHI YOSHINORI (JP)
AOKI SHUNJI (JP)
KIMURA TSUNEO (JP)
Application Number:
PCT/JP2022/023749
Publication Date:
January 05, 2023
Filing Date:
June 14, 2022
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08L83/07; C08G77/44; C08G77/48; C08G81/00; C08J3/12; C08J7/04; C08L83/05
Domestic Patent References:
| WO2017191798A1 | 2017-11-09 | |||
| WO2019124418A1 | 2019-06-27 | |||
| WO2019189394A1 | 2019-10-03 | |||
| WO2021220625A1 | 2021-11-04 | |||
| WO2022019179A1 | 2022-01-27 |
Foreign References:
| JPS6312489B2 | 1988-03-19 | |||
| JPH0655805B2 | 1994-07-27 | |||
| JPH02102263A | 1990-04-13 | |||
| JPH0812546A | 1996-01-16 | |||
| JPH0812545A | 1996-01-16 | |||
| JPH0417162B2 | 1992-03-25 | |||
| JPH0466446B2 | 1992-10-23 | |||
| JPS58219218A | 1983-12-20 | |||
| JPH0885753A | 1996-04-02 | |||
| JPS63297313A | 1988-12-05 | |||
| JPH0812524A | 1996-01-16 | |||
| JPH0920631A | 1997-01-21 | |||
| US3220972A | 1965-11-30 | |||
| US3159601A | 1964-12-01 | |||
| US3159662A | 1964-12-01 | |||
| US3775452A | 1973-11-27 |
Attorney, Agent or Firm:
YOSHIMIYA Mikio et al. (JP)
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