Cationic electrodeposition coating composition and articles coated with the electrodeposition coating
US8293820B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Oct 19, 2007 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Jul 25, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D13/16
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cationic electrodeposition coating composition comprising a cationic resin (A) and a blocked polyisocyanate (B) obtained by reaction between a polyisocyanate compound (b1) with two or more isocyanate groups, castor oil (b2) and a blocking agent (b3). The cationic electrodeposition coating composition has excellent throwing power, suitability for electrodeposition onto hot dip galvanized steel sheets, finished appearance and corrosion resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.