Cationic electrodeposition coating composition
US6333367A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2000 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Apr 14, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/8077
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A cationic electrodeposition coating composition containing (A) an acrylic resin obtained by subjecting a mixture of 10 to 60% by weight of a hydroxyl group-containing acrylic monomer (a), 5 to 35% by weight of an amino group-containing acrylic monomer (b), 5 to 55% by weight of an aromatic vinyl monomer (c) and optionally another acrylic monomer (d) to a radical copolymerization reaction; (B) a hydroxyl group-containing acrylic resin-modified epoxy resin obtained by reacting 65 to 95% by weight of a resin composition consisting of 10 to 90% by weight of an epoxy resin (e) and 90 to 10% by weight of a hydroxyl group-containing acrylic resin (f) with 5 to 35% by weight of an amine compound (g); (C) a aliphatic and/or alicyclic blocked polyisocyanate compound, and (D) a bismuth compound component, a mixing ratio of the components (A), (B) and (C) being such that the component (A) is in the range of 40 to 90% by weight, the component (B) is in the range of 5 to 55% by weight and the component (C) is in the range of 5 to 40% by weight based on a total weight of solid contents in the components (A), (B) and (C), the component (D) being contained in such an amount as to be in the range o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.