Title:
POLYESTER RESIN, AND COMPOSITION FOR COATING METAL PLATE
Document Type and Number:
WIPO Patent Application WO/2023/157840
Kind Code:
A1
Abstract:
PROBLEM TO BE SOLVED: The present invention addresses the issues of providing a polyester resin that has, in addition to excellent curability, processability, retort resistance and dent resistance, and providing a composition, using the resin, for coating a metal plate. SOLUTION: A polyester resin having a polyvalent carboxylic acid component and a polyvalent alcohol component as copolymerization components, and satisfying the following conditions (i)-(iii). (i) At least 10 mol% of the polyvalent carboxylic acid component forming the polyester resin is a polyvalent carboxylic acid component having a furan skeleton. (ii) There are at least two kinds of polyvalent alcohol component forming the polyester resin. (iii) The acid value is 70 eq/t to 400 eq/t, inclusive.
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Inventors:
OKAJIMA HIROKI (JP)
KANDA RYOSUKE (JP)
GOSHIMA HIDETO (JP)
KANDA RYOSUKE (JP)
GOSHIMA HIDETO (JP)
Application Number:
PCT/JP2023/004996
Publication Date:
August 24, 2023
Filing Date:
February 14, 2023
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08G63/668; B32B15/08; B32B15/09; B65D1/00; C09D167/02; C23C26/00
Domestic Patent References:
| WO2019244797A1 | 2019-12-26 |
Foreign References:
| JP2016065123A | 2016-04-28 | |||
| CN107200833A | 2017-09-26 | |||
| JP2020094134A | 2020-06-18 |
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