Title:
PHOTO-CATIONICALLY CURABLE SILICONE COMPOSITION, SILICONE CURED PRODUCT, AND OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/038795
Kind Code:
A1
Abstract:
The present invention is a photo-cationically curable silicone composition comprising (A) an epoxy silicone represented by general formula (1) (where Me is a methyl group, Ph is a phenyl group, RE is a monovalent substituent containing a C2-16 epoxy group, R1 is a C1-12 monovalent hydrocarbon group having no aliphatic unsaturated bond, R2 is a methyl group or a phenyl group, R3 is a C1-5 divalent hydrocarbon group or an oxygen atom, h is an integer of 1-10, I is an integer of 0-10, j is an integer of 0-10, and k is an integer of 1-100) and (B) a photocationic polymerization initiator, wherein the content of phenyl groups bonded to silicon atoms in the component (A) is not less than 40 mol% with respect to the total number of monovalent substituents bonded to silicon atoms in the component (A). Thus, provided is a silicone composition that has a high refractive index, that can be cured with ultraviolet irradiation, and that provides a cured product having excellent hardness and strength.
Inventors:
UCHIDA SEIYA (JP)
ASAKURA ERI (JP)
KOBAYASHI YUKITO (JP)
ASAKURA ERI (JP)
KOBAYASHI YUKITO (JP)
Application Number:
PCT/JP2023/028843
Publication Date:
February 22, 2024
Filing Date:
August 08, 2023
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08G59/30; C08G59/40; C08G59/68; C08G77/50; C08L63/00
Domestic Patent References:
| WO2021127246A1 | 2021-06-24 | |||
| WO2012117929A1 | 2012-09-07 |
Foreign References:
| JP2007100005A | 2007-04-19 | |||
| JP2012001668A | 2012-01-05 | |||
| JP2017508008A | 2017-03-23 |
Attorney, Agent or Firm:
YOSHIMIYA Mikio et al. (JP)
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