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:
Mar. 13, 1979
Filed:
Jan. 03, 1977
Applicant:
Inventors:
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428334 ; 428220 ; 428422 ; 428523 ; 4272 / ; 427302 ; 526 13 ; 526 19 ; 252426 ; 252428 ; 260544 ; 526 26 ;
Abstract
Perfluorinated functionalized materials are disclosed which are prepared by simultaneous perfluorination and functionalization. A wide variety of materials can be used including polymers and other branched or straight chain hydrocarbons. The material to be perfluorinated is placed in a direct fluorination apparatus and a mixture of fluorine and oxygen is passed over the material using La-Mar direct fluorination techniques. With materials such as polyethylene or polypropylene, pendant alkyl groups are converted to either acid fluoride groups or perfluoroalkyl groups, with the exact ratio of each being dependent upon the specific fluorine-to-oxygen ratio used.