Method of producing adherent coatings on resinous substrates
US7714069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2006 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Oct 10, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2365/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a method of producing an adherent coating over untreated thermoplastic and thermosetting resinous substrates from a coating composition that includes a crosslinkable component and a crosslinking component that are mixed prior to application and applied over the substrate. The crosslinkable component includes a polymeric mix containing at least one crosslinkable copolymer polymerized from a monomer mixture comprising one or more ethylenically unsaturated monomers having on average 1 to 10, preferably 1 to 4 and more preferably 1 to 2 hydroxyl groups and a saturated hydrocarbon polymer. The crosslinkable component includes one or more cycloaliphatic polyisocyanate of the formula:R1—(R2—NCO)n wherein R1 is a substituted or unsubstituted cycloaliphatic group, R2 is independently selected from a direct bond, a straight aliphatic group or branched aliphatic group, and wherein n ranges from 2 to 10. The method is well suited to produce adherent coatings on olefinic substrates such as those used in automotive and general commercial application without any pretreatment of the resinous substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.