Adhesion promoting compositions and method of improving fuel resistance of a coated article
US11884840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2020 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Jun 8, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2493/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to film-forming compositions comprising: a) a non-chlorinated, linear polyolefin polymer comprising 0.5 to 10 percent by weight residues of an ethylenically unsaturated anhydride or acid; b) an aminoplast; and c) a component comprising: i) at least one non-chlorinated hydrocarbon having at least 18 carbon atoms and optionally aromatic groups and/or oxygen heteroatoms; and/or ii) an alkyd resin. The present invention is also drawn to methods of improving fuel resistance of a coated article, comprising: (1) applying the film-forming composition to a substrate to form a coated substrate; (2) optionally subjecting the coated substrate to a temperature for a time sufficient to cure the film-forming composition; (3) applying at least one curable film-forming composition to the coated substrate to form a multi-layer coated substrate; and (4) subjecting the multi-layer coated substrate to a temperature and for a time sufficient to cure all of the film-forming compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.