Title:
THERMOPLASTIC RESIN AND OPTICAL MEMBER CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2023/181695
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a polycarbonate resin which can satisfy all of a refractive index, an Abbe number, heat resistance, and birefringence; and an optical member containing the same. This thermoplastic resin contains repeating units represented by formula (1), formula (2) and formula (3), contains 60 mol% or more of repeating units represented by formula (1), and has a refractive index of more than 1.600 and not more than 1.660. (In formula (1), R1 to R4 each independently denote a hydrogen atom or a hydrocarbon group having 1-10 carbon atoms.) (In formula (3), n falls within the range 1-8, R5 and R6 each independently denote a hydrogen atom or a hydrocarbon group having 1-10 carbon atoms, and R7 denotes a hydrogen atom or an alkyl group having 1-3 carbon atoms.)
Inventors:
ISHIHARA YOSHIHIRO (JP)
SATO KEISUKE (JP)
SATO KEISUKE (JP)
Application Number:
PCT/JP2023/004638
Publication Date:
September 28, 2023
Filing Date:
February 10, 2023
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
C08G64/16; G02B1/04
Domestic Patent References:
| WO2020166408A1 | 2020-08-20 | |||
| WO2021182217A1 | 2021-09-16 | |||
| WO2022004239A1 | 2022-01-06 | |||
| WO2019188702A1 | 2019-10-03 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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