Title:
THERMOPLASTIC RESIN, COMPOSITION, MOLDED ARTICLE, OPTICAL LENS, AND METHOD FOR PRODUCING THERMOPLASTIC RESIN
Document Type and Number:
WIPO Patent Application WO/2022/065329
Kind Code:
A1
Abstract:
The problem of the present invention is to provide: a thermoplastic resin having excellent heat resistance and excellent flame retardancy and having a siloxane constituent unit, particularly a thermoplastic resin suitable for optical applications; a composition containing the thermoplastic resin; and others. The problem is solved by a thermoplastic resin containing a structural unit (A) represented by general formula (I). (In general formula (I), Ra to Rd independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms in total and optionally having a substituent, or an aryl group having 6 to 30 carbon atoms in total and optionally having a substituent; Xa and Xb independently represent an alkyl group having 1 to 20 carbon atoms in total and optionally having a substituent, or an aryl group having 6 to 30 carbon atoms in total and optionally having a substituent; the substituent is any one of a halogen atom, a cyano group, an alkenyl group, an alkynyl group and an alkoxy group; and m represents an integer of 1 to 3.)
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Inventors:
TAGUCHI DAISUKE (JP)
KAMATANI KOHEI (JP)
AKIMOTO HISATO (JP)
UERA KAZUYOSHI (JP)
KAMATANI KOHEI (JP)
AKIMOTO HISATO (JP)
UERA KAZUYOSHI (JP)
Application Number:
PCT/JP2021/034678
Publication Date:
March 31, 2022
Filing Date:
September 22, 2021
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G64/08; C08G65/40; C08G77/52; C08L69/00; C08L83/14; G02B1/04
Domestic Patent References:
| WO2001030787A1 | 2001-05-03 | |||
| WO2020196343A1 | 2020-10-01 |
Foreign References:
| JPH0347842A | 1991-02-28 | |||
| US4026827A | 1977-05-31 | |||
| JPS396400B1 | 1964-05-04 | |||
| JP2016532733A | 2016-10-20 | |||
| JPH08502537A | 1996-03-19 | |||
| JP2015512999W | ||||
| JP2016183422A | 2016-10-20 |
Other References:
DUNNAVANT W R, MARKLE R A, STICKNEY P B, BATTELLE, OL ?, CURRY J E, J D: "Synthesis of polyaryloxysilanes by melt-polymerizing dianilino- and diphenoxysilanes with aromatic diols", JOURNAL OF POLYMER SCIENCE, vol. 5, no. 4, 1 January 1967 (1967-01-01), pages 707 - 724, XP055915019
JOURNAL OF POLYMER SCIENCE, vol. 18, 1980, pages 3119 - 3127
See also references of EP 4219589A4
JOURNAL OF POLYMER SCIENCE, vol. 18, 1980, pages 3119 - 3127
See also references of EP 4219589A4
Attorney, Agent or Firm:
KOBAYASHI Hiroshi et al. (JP)
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