Title:
CURABLE FILM-FORMING COMPOSITIONS DEMONSTRATING INCREASED WET-EDGE TIME
Document Type and Number:
Japanese Patent JP2021119238
Kind Code:
A
Abstract:
To provide a curable film-forming compositions demonstrating increased wet-edge time.SOLUTION: The present invention is directed to a curable film-forming composition comprising: (a) a curing agent comprising reactive isocyanate functional groups; (b) a film-forming compound comprising functional groups reactive with the reactive isocyanate functional groups in (a); (c) a photo-latent catalyst; (d) a β-diketone having a flash point higher than 60° C (140°F); and (e) a β-diketone having a flash point lower than or equal to 60°C (140°F). The invention is further directed to methods of controlling the rate of cure and increasing the wet-edge time of a curable film-forming composition comprising an isocyanate functional curing agent, by adding to the curable film-forming composition a catalyst component comprising: (i) a photo-latent catalyst; (ii) a β-diketone having a flash point higher than 60°C (140°F); and (iii) a β-diketone having a flash point lower than or equal to 60°C (140°F).SELECTED DRAWING: None
Inventors:
TANG GUANGLIANG
MIKHAIL KHUDIAKOV
MIKHAIL KHUDIAKOV
Application Number:
JP2021073948A
Publication Date:
August 12, 2021
Filing Date:
April 26, 2021
Export Citation:
Assignee:
PRC DESOTO INT INC
International Classes:
C08G18/08; C08G18/16; C08L33/04; C08L75/04
Domestic Patent References:
| JP2013504673A | 2013-02-07 | |||
| JP2013504671A | 2013-02-07 | |||
| JP2014518561A | 2014-07-31 |
Attorney, Agent or Firm:
Asamura patent office