The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 1998
Filed:
Nov. 21, 1995
Applicant:
Inventor:
Thomas Ronald Thomas, Dingwall, GB;
Assignee:
British Technology Group, Ltd., London, GB;
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; C08J / ;
U.S. Cl.
CPC ...
427490 ; 427245 ; 4272556 ; 427307 ; 427534 ; 427536 ; 427538 ;
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.