Title:
POLYESTER RESIN AND METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION, MOLDED BODY, AND OPTICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2023/058632
Kind Code:
A1
Abstract:
A polyester resin having a molecular weight dispersity (Mw/Mn; Mw represents the weight-average molecular weight and Mn represents the number-average molecular weight) of 2.3-2.5 that includes a unit (A) derived from a dicarboxylic acid ester represented by general formula (1), a unit (B) derived from a diol having a ring structure, and a unit (C) derived from a diol having a straight-chain alkyl structure. (In general formula (1), R1 represents a C1-3 alkyl group. R2 represents a C4-8 alkyl group. m represents an integer of 0-8.)
Inventors:
HIRAKAWA MANABU (JP)
HONDA EIICHI (JP)
YOSHIMURA YASUAKI (JP)
SATAKE YUICHIRO (JP)
HONDA EIICHI (JP)
YOSHIMURA YASUAKI (JP)
SATAKE YUICHIRO (JP)
Application Number:
PCT/JP2022/037066
Publication Date:
April 13, 2023
Filing Date:
October 04, 2022
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G63/199; C08G63/83; C08L67/02; G02B1/04
Foreign References:
| JPH05105747A | 1993-04-27 | |||
| JPH05222172A | 1993-08-31 | |||
| JPH0752347A | 1995-02-28 | |||
| JP2002187939A | 2002-07-05 | |||
| JPH08127642A | 1996-05-21 | |||
| JP2001240660A | 2001-09-04 | |||
| JP2001302776A | 2001-10-31 | |||
| JPH09302077A | 1997-11-25 | |||
| JPH09188751A | 1997-07-22 | |||
| JPH08169940A | 1996-07-02 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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