Applying a fluoropolymer film to a body
US5773098A · kind A · utility
26Cited by
21References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1995 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Nov 21, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/11
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A thin fluoropolymer film is covalently bonded to a microporous ptfe film to make a bilayer for separation, filtration or reverse osmosis, by exposing the microporous film to perfluorocyclohexane under plasma. The perfluorocyclohexane molecules undergo scission and the fragments combine on the substrate to make a fluoropolymer film wherein the pores of the substrate have not been completely closed by the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.