Title:
AQUEOUS COATING MATERIAL COMPOSITION AND COATED METAL BASE BODY
Document Type and Number:
WIPO Patent Application WO/2020/100775
Kind Code:
A1
Abstract:
The present invention pertains to an aqueous coating material composition and a coated metal sheet having a coating film made of the aqueous coating material composition. This aqueous coating material composition contains, as a main agent, a polyester resin having an acid value of not less than 10 mgKOH/g but less than 70 mgKOH/g and a glass transition temperature of 35°C or higher, and a β-hydroxyalkylamide compound as a curing agent, wherein the equivalent ratio (OH group/COOH group molar ratio) of the hydroxy group of the β-hydroxyalkylamide compound to the carboxyl group of the polyester resin is in the range of 0.8-3.0. The aqueous coating material composition has excellent flavor sorption resistance and retort-whitening resistance, and can be used to form a coating film having excellent coating film characteristics such as curability and workability.
Inventors:
KASHIWAKURA TAKUYA (JP)
ZHANG NAN (JP)
SAKURAGI ARATA (JP)
YAMAMOTO HIROMI (JP)
ZHANG NAN (JP)
SAKURAGI ARATA (JP)
YAMAMOTO HIROMI (JP)
Application Number:
PCT/JP2019/044007
Publication Date:
May 22, 2020
Filing Date:
November 08, 2019
Export Citation:
Assignee:
TOYO SEIKAN GROUP HOLDINGS LTD (JP)
International Classes:
B32B27/36; B32B15/09; C09D5/02; C09D167/00
Domestic Patent References:
| WO2019159453A1 | 2019-08-22 |
Foreign References:
| JP2003026992A | 2003-01-29 | |||
| JP2003321646A | 2003-11-14 | |||
| US4390658A | 1983-06-28 | |||
| JPH09505108A | 1997-05-20 | |||
| JP2019157102A | 2019-09-19 | |||
| JP2019183107A | 2019-10-24 | |||
| JP4228585B2 | 2009-02-25 | |||
| JP2003026992A | 2003-01-29 |
Other References:
See also references of EP 3882027A4
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
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