Title:
CATIONIC ELECTRODEPOSITION COATING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/019034
Kind Code:
A1
Abstract:
The present invention provides a cationic electrodeposition coating composition capable of having low-temperature curability and maintaining coating film performance. The present invention provides a cationic electrodeposition coating composition containing an aminated resin and a blocked polyisocyanate curing agent. The blocked polyisocyanate curing agent is contained in the amount of 50-80 mass% in a coating resin solid content. A blocking agent forming the blocked polyisocyanate curing agent includes a combination of (a) a monool compound and (b) a polyol compound and/or an amine having a hydroxy group. The amount of an OH functional group remaining in a formed electrodeposition coating film is 0.4-1.6 (meq/gram of solid content). The present invention also provides a coating film obtained from the cationic electrodeposition coating composition.
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Inventors:
SHARAF MAHA (JP)
AKAGI SAKI (JP)
HARA TAKESHI (JP)
IWAHASHI YUTO (JP)
AKAGI SAKI (JP)
HARA TAKESHI (JP)
IWAHASHI YUTO (JP)
Application Number:
PCT/JP2021/023644
Publication Date:
January 27, 2022
Filing Date:
June 22, 2021
Export Citation:
Assignee:
NIPPON PAINT AUTOMOTIVE COATINGS CO LTD (JP)
International Classes:
C09D5/44; C09D163/00; C09D201/02
Domestic Patent References:
| WO2013035765A1 | 2013-03-14 |
Foreign References:
| JP2007246806A | 2007-09-27 | |||
| JPS62295972A | 1987-12-23 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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