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:
May. 29, 1984
Filed:
Dec. 02, 1982
Patrick Calas, Montpellier, FR;
Patrice Moreau, Saint Gely Du Fesc, FR;
Auguste Commeyras, Clapiers, FR;
PCUK Produits Chimiques Ugine Kuhlmann, Courbevoie, FR;
Abstract
Process for the preparation of true acetylene hydrocarbons with a perfluoro chain, characterized by dehydroiodination with an alkali metal hydroxde in an alcoholic medium of the iodohydrin ##STR1## wherein R.sub.F is a straight or branched perfluoroalkyl chain C.sub.n F.sub.2n+1 -- where n is 1 to 20, and R and R' are identical or different alkyl radicals, followed by distillation, in the presence of solid alkali metal hydroxide, of the resulting acetylenic alcohol obtained to produce a true acetylene hydrocarbon of the formula R.sub.F --C.tbd.CH. The acetylene hydrocarbons are useful for forming compounds having the ability to carry gases such as oxygen for biological purposes.