Multiple coat non-stick coating system and articles coated with same
US6846570B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2001 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Sep 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3175
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Multiple coat non-stick coating systems, as well as articles coated with such non-stick coating systems, are provided. The primer (22a) of the multiple coat system includes a fluoropolymer (14a) copolymer, such as a fluoropolymer terpolymer including tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride monomers, which fluoropolymer copolymers are referred to collectively as THV. The multiple coat system exhibits excellent substrate adhesion and release properties, and the primer exhibits excellent primer-substrate adhesion and primer-topcoat adhesion. The multiple coat system is additionally resistant to separation failure at the interface between the binder (12) and fluoropolymer components of the primer, exhibits excellent adhesion to smooth substrates (16), and may also include a high level of fillers to provide increased damage resistance without compromising the above benefits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.