Curable film-forming compositions containing encapsulated catalyst components
US9650480B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2015 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Curable film-forming compositions are provided. The compositions comprise (a) a curing agent comprising reactive functional groups; (b) a film-forming compound comprising functional groups reactive with the reactive functional groups in (a); and (c) a catalyst component added to the curable film-forming composition as a dispersion of micelles in a continuous phase. The catalyst component (c) comprises a catalyst compound contained within or encapsulated by a carrier, and the catalyst compound and carrier together form the micelles in the continuous phase. The carrier comprises block copolymers that comprise at least one hydrophobic block derived from hydrophobic monomers and at least one hydrophilic block derived from (1) hydrophilic monomers and/or (2) monomers containing groups that may be rendered hydrophilic after polymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.