Title:
POLYESTER CARBONATE RESIN AND OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2020/080199
Kind Code:
A1
Abstract:
The present invention is able to provide a polyester carbonate resin which contains a constituent unit represented by general formula (1), a constituent unit represented by general formula (2) and a constituent unit represented by general formula (3). (In general formula (1), R represents a hydrogen atom or an alkyl group having 1-4 carbon atoms.) (In general formula (2), Q represents one of the groups separately described.) (In the separately described groups, each of n and m independently represents an integer of 0-5.)
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Inventors:
HIRAKAWA MANABU (JP)
KATO NORIYUKI (JP)
HONDA EIICHI (JP)
YOSHIMURA YASUAKI (JP)
SATAKE YUICHIRO (JP)
KATO NORIYUKI (JP)
HONDA EIICHI (JP)
YOSHIMURA YASUAKI (JP)
SATAKE YUICHIRO (JP)
Application Number:
PCT/JP2019/039690
Publication Date:
April 23, 2020
Filing Date:
October 08, 2019
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G63/64; G02B1/04
Domestic Patent References:
| WO2014073496A1 | 2014-05-15 | |||
| WO2016052370A1 | 2016-04-07 | |||
| WO2017047555A1 | 2017-03-23 | |||
| WO2017078074A1 | 2017-05-11 | |||
| WO2017175693A1 | 2017-10-12 | |||
| WO2018181157A1 | 2018-10-04 | |||
| WO2014073496A1 | 2014-05-15 | |||
| WO2017175693A1 | 2017-10-12 |
Foreign References:
| JPH05155964A | 1993-06-22 | |||
| JP2007161917A | 2007-06-28 | |||
| JPH0570584A | 1993-03-23 | |||
| JPH0269520A | 1990-03-08 | |||
| JPH05341124A | 1993-12-24 |
Other References:
See also references of EP 3868811A4
Attorney, Agent or Firm:
KOBAYASHI Hiroshi et al. (JP)
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