Polytetrafluoroethylene thin film with polydopamine adhesive layer
US9914152B2 · kind B2 · utility
1Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2014 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Jul 7, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y30/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
One aspect of the present invention relates to a method of fabricating a low friction, wear resistant, polydopamine/polytetrafluoroethylene layered film. In one embodiment, the method comprises the deposition of a polydopamine film on a stainless steel substrate through an oxidative polymerization process, the deposition of a polytetrafluoroethylene nanoparticle film on top of the polydopamine film, and heat treating the layered film to remove moisture and fuse the particles together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.