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:
Feb. 01, 1977
Filed:
Apr. 15, 1976
Applicant:
Inventors:
Hiroshi Isa, Yachiyo, JA;
Hiroshi Mandai, Chiba, JA;
Toshiyuki Ukigai, Yachiyo, JA;
Anri Tominaga, Tokyo, JA;
Tatsuji Yamashita, Chiba, JA;
Assignee:
Lion Fat & Oil Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ;
Abstract
Liquid polyolefin oil having a kinematic viscosity of about 500 centistokes or more at 100.degree. F, a high viscosity index, a good shearing stability and a low pour point can be prepared by polymerizing an olefin having 6 or more carbon atoms in the presence of a catalyst mixture of (a) a dicarbonyl compound selected from a group consisting of acyclic or cyclic diketones and ketoesters and (b) an aluminum halide in an amount of 0.7 - 5 mole per one carbonyl group or ester bond of said dicarbonyl compound. Said catalyst mixture may contain an alkyl halide.