Acrylic anticrater additive for electrocoats
US9102784B2 · kind B2 · utility
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13References
15Claims
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Key dates
| Filing date | Mar 16, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Apr 26, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure is directed to an anticrater additive that is useful for providing a smooth surface to a cured layer of an electrocoating composition on a substrate. The anticrater additive comprises the reaction product of a polyisocyanate with an acrylic polymer having one isocyanate reactive functional group. The acrylic polymer can be an acrylic polymer that is terminated with a chain transfer agent. Also disclosed is an electrocoat composition comprising the anticrater additive and a substrate coated with a cured layer of the electrocoat composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.