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. 27, 1980
Filed:
Jul. 26, 1978
Applicant:
Inventors:
Hiroyuki Morikawa, Amimachi, JP;
Shooji Kitazume, Amimachi, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585367 ; 585368 ; 585507 ;
Abstract
A process of the production of isoprene cyclic trimers, i.e., 1, 5, 9- and 1, 6, 9-trimethylcyclododecatriene-(1, 5, 9) through a catalytic oligomerization of isoprene by employing a catalyst prepared by a combination of a tri-valent titanium compound, an organoaluminum compound, an oxygen-containing compound such as carbonyl and ether compounds, and a compound such as a sulfur-containing compound and a nitrile compound.