Title:
METHOD FOR PRODUCING SILICONE PARTICLES
Document Type and Number:
WIPO Patent Application WO/2022/220022
Kind Code:
A1
Abstract:
The present invention is a method for producing silicone particles having oxyalkylene groups on the surface, the silicone particles including dialkylsiloxane units according to general formula (1): R4
2SiO2/2 (R4 is a C1-6 monovalent hydrocarbon group), and poly(oxyalkylene)methylsiloxane units according to general formula (2): (R1 is a hydrogen atom or a C1-6 monovalent hydrocarbon group, R2 is a C1-6 divalent aliphatic group, and n is a number satisfying 1≤n≤50), wherein the production method involves polymerizing a composition containing (A) an organopolysiloxane having radical polymerization reactive groups, (B) a polyoxyalkylene-modified silicone having radical polymerizable groups, and (C) a redox-based radical polymerization initiator, at a low temperature of 50°C or lower while the composition is dispersed in water. Provided thereby is a method for producing silicone particles having hydrophilic groups that can be dispersed easily in aqueous materials without using a dispersant or surfactant.
Inventors:
TAKEWAKI KAZUYUKI (JP)
Application Number:
PCT/JP2022/013059
Publication Date:
October 20, 2022
Filing Date:
March 22, 2022
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08F290/06
Domestic Patent References:
| WO2019026651A1 | 2019-02-07 | |||
| WO2018190158A1 | 2018-10-18 | |||
| WO2015128636A1 | 2015-09-03 |
Foreign References:
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Attorney, Agent or Firm:
YOSHIMIYA Mikio et al. (JP)
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