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:
Apr. 13, 1976
Filed:
Mar. 09, 1970
Applicant:
Inventors:
Isao Hirose, Mitaka, JA;
Kazutoshi Funabashi, Hino, JA;
Takeshi Fujii, Iwakuni, JA;
Kiyoshi Kawajiri, Hiroshima, JA;
Assignee:
Teijin Ltd., Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
2606 / ; 2605 / ; 2606 / ; 260634 ;
Abstract
A process for the manufacture of an alkylene glycol having 2 - 4 carbon atoms, which comprises oxidizing an unsubstituted aliphatic olefin having 2 - 4 carbon atoms by contact with a water-soluble thallic salt in the presence of water, characterised in that at least one kind of ions selected from ions of chlorine and bromine is present in the reaction system in an amount such that the atomic ratio of the said ion or ions to thallium atom is at least 5, and said oxidation is carried out at a temperature of 120.degree.- 200.degree.C.