Polytetrafluoroethylene coating of polymer surfaces
US4855162A · kind A · utility
44Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1987 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Jul 17, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2427/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Adherent, PTFE coatings on polymer surfaces can be produced at temperatures well below the sintering temperature of PTFE, by contacting the surface with a dilute dispersion of PTFE particles and heating the surface to its softening point (in the vicinity of its glass transition temperature) to dry it and to cause the individual particles to become embedded in and surrounded by the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.