Title:
POLYCARBONATE COPOLYMER, COATING LIQUID, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING POLYCARBONATE COPOLYMER, AND ELECTRICAL EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2021/201226
Kind Code:
A1
Abstract:
This polycarbonate copolymer has a repeating unit A represented by formula (1) and a repeating unit B represented by formula (2), and is obtained using at least one among bischloroformate oligomers represented by formula (1A) and formula (2A) as a raw material, wherein an average number n1 of the bischloroformate oligomers represented by formula (1A) is 1.0-1.3, and an average number n2 of the bischloroformate oligomers represented by formula (2A) is 1.0-1.3. Ar1 in formula (1) is a group represented by formula (3), and Ar2 in formula (2) is a group represented by formula (4). Ar1 in formula (1A) is the same as Ar1 in formula (1), Ar2 in formula (2A) is the same as Ar2 in formula (2), and n1 and n2 each represent an average number of oligomers.
Inventors:
HIRATA KENGO (JP)
CHIBA KAZUNORI (JP)
HIKOSAKA TAKAAKI (JP)
MORISHITA HIRONOBU (JP)
CHIBA KAZUNORI (JP)
HIKOSAKA TAKAAKI (JP)
MORISHITA HIRONOBU (JP)
Application Number:
PCT/JP2021/014162
Publication Date:
October 07, 2021
Filing Date:
April 01, 2021
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C08G64/04; C08G64/12; C09D169/00; G03G5/05
Domestic Patent References:
| WO2013125229A1 | 2013-08-29 | |||
| WO2010150888A1 | 2010-12-29 | |||
| WO2014192633A1 | 2014-12-04 |
Foreign References:
| JPH0656982A | 1994-03-01 | |||
| JPH1138648A | 1999-02-12 | |||
| JPS62104835A | 1987-05-15 | |||
| JPH05163339A | 1993-06-29 | |||
| JP2011026574A | 2011-02-10 | |||
| JPH08328285A | 1996-12-13 | |||
| JPH0943873A | 1997-02-14 |
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
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