One-pack coating composition and coating method using the same
US6207235A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1996 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Mar 14, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3435
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A one-pack coating composition is disclosed. The composition comprises (A) an oligomer or polymer containing an acid anhydride group, a blocked hydroxyl group and an epoxy group as indispensable functional groups in the same or different molecules, (B) a heat-potential curing catalyst which comprises a complex of an organometallic compound and an electron-donating compound or an onium salt and which exhibits its activity upon heating, (C) an ultraviolet absorber comprising a triazine or oxalic anilide, and (D) a hindered amine light stabilizer having a piperidine ring of the following structure: ##STR1## wherein R represents R.sup.1 --CO--, a C.sub.2 to C.sub.20 alkyl group or R.sup.1 --O-- (R.sup.1 being a C.sub.2 to C.sub.20 alkyl group), and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 independently from each other represent a C.sub.1 to C.sub.3 alkyl group, or a phenolic antioxidant. A method for coating using this coating composition is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.