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:
Dec. 19, 2000
Filed:
Jan. 18, 2000
Applicant:
Inventors:
Tetsuo Nakajo, Kawasaki, JP;
Masatoshi Hotta, Kawasaki, JP;
Hiromoto Ohno, Kawasaki, JP;
Toshio Ohi, Kawasaki, JP;
Yusaku Takita, Oita, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62D / ; B01D / ; C01B / ;
U.S. Cl.
CPC ...
588205 ; 588206 ; 588238 ; 588242 ; 588244 ; 588246 ; 423210 ; 4232 / ; 423659 ;
Abstract
A method for decomposing a perfluorocarbon in the presence of water vapor or water vapor and molecular oxygen in gas phase, in which a catalyst of a phosphate comprising at least one element selected from the group consisting of aluminum, boron, alkali earth metal, titanium, zirconium, lanthanum, cerium, yttrium, rare earth metal, vanadium, niobium, chromium, manganese, iron, cobalt and nickel, and phosphorus oxide, is used.