Title:
POLYESTER RESIN, AND COATING COMPOSITION FOR METAL PLATES
Document Type and Number:
WIPO Patent Application WO/2023/157771
Kind Code:
A1
Abstract:
[Problem] To provide a polyester resin having excellent curing properties and, in addition, good processability, retort resistance and dent resistance, and a coating composition using the same. [Solution] A polyester resin that comprises, as copolymerization components, a polyvalent carboxylic acid component and a polyhydric alcohol component and that satisfies the following requirements (i) to (iii). (i) Containing 10 mol% or more of a polyvalent carboxylic acid component having a furan skeleton, in the polyvalent carboxylic acid component constituting the polyester resin. (ii) Containing 10-50 mol% of an alicyclic diol having 6 or more carbon atoms, in the polyhydric alcohol component constituting the polyester resin. (iii) Having a glass transition temperature of lower than 70°C.
Inventors:
GOSHIMA HIDETO (JP)
OKAJIMA HIROKI (JP)
KANDA RYOSUKE (JP)
OKAJIMA HIROKI (JP)
KANDA RYOSUKE (JP)
Application Number:
PCT/JP2023/004612
Publication Date:
August 24, 2023
Filing Date:
February 10, 2023
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08G63/668; B32B15/09; B32B27/26; B65D25/14; C09D7/63; C09D7/65; C09D167/00; C23C26/00
Domestic Patent References:
| WO2015108026A1 | 2015-07-23 |
Foreign References:
| CN110964416A | 2020-04-07 | |||
| US20130095271A1 | 2013-04-18 | |||
| CN110591064A | 2019-12-20 | |||
| CN112592467A | 2021-04-02 |
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