Electrodepositable aqueous coating composition with a component having cyclic urea groups
US5098949A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1989 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Dec 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/901
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a novel curing system which is not associated with decomposition or production of low molecular materials. The curing system employs an aqueous composition which comprises (a) a compound having in one molecule at least two carbonylcyclic urea groups represented by the following formula (1) ##STR1## [wherein n is an integer of 0 to 5, X which may be the same or different and represents oxygen atom, a sulfur atom or --NR.sub.1 -- in which R.sub.1 is a hydrogen atom, an alkyl, hydroxyalkyl or alkylene group having 1 to 5 carbon atoms.] and (b) a basic resin which has a functional group reactive with an isocyanate group and is water soluble or water dispersible by neutralizing. The present invention also provides an aqueous composition comprising a basic resin (c) which has a functional group reactive with an isocyanate group and has in one molecule at least two carbonylcyclic urea groups represented by the following formula (1) ##STR2## wherein n and X are the same as mentioned above, and which is water soluble or water dispersible by neutralizing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.