Powder coating composition
US4255553A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1979 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Jun 4, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/686
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A powder coating composition comprising: PA1 (a) a compound having at least two epoxy groups in the molecule; PA1 (b) a compound having at least two carboxyl groups in the molecule; and PA1 (c) a compound of the formula: ##STR1## wherein m and n are each an integer of 1-10.sup.5 provided that m.ltoreq.n; R.sub.1 is a residue of a mono or polybasic carboxylic acid; R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are, the same or different, each an unsubstituted or substituted C.sub.1-30 alkyl, C.sub.6-10 cycloalkylalkyl, C.sub.5-8 cycloalkyl, C.sub.6-20 aryl or C.sub.7-30 aralkyl or at least two of them many form together with nitrogen atom a saturated or unsaturated heterocyclic group, said composition being able to be thermoset at low temperature and form a paint film having excellent surface smoothness without browning of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.