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. 03, 1998
Filed:
Jun. 02, 1995
Carl George Krespan, Wilmington, DE (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
The compounds CF.sub.3 CHFCHFCF.sub.2 CF.sub.3, CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.3, CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3, CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3, CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3, CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3, CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3, CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3, CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3, CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3, CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3, CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3, and CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ; and compositions thereof. Catalytic processes using Group VIII metals are disclosed for reacting selected olefinic starting materials with hydrogen to produce as the major products dihydropolyfluoroalkanes or trihydropolyfluoroalkanes wherein the hydrogens are positioned on two adjacent carbon atoms; as are processes using iodine and/or hydrogen iodide in the reduction of selected olefinic starting materials to dihydropolyfluoroalkanes or trihydropolyfluoroalkanes.