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:
Jun. 21, 1977
Filed:
Jul. 22, 1976
Applicant:
Inventors:
Hiroshi Mandai, Chiba, JA;
Toshiyuki Ukigai, Yachiyo, JA;
Anri Tominaga, Higashi-Iko, JA;
Michito Sato, Yokohama, JA;
Assignee:
Lion Fat & Oil Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ;
Abstract
A method of preparing a polyolefin oil in the present invention comprises polymerizing an olefin having 6 or more carbon atoms in the presence of a catalyst mixture consisting of a polyester of polycarboxylic acid and an aluminum halide. The thus prepared polyolefin oil has a low viscosity and a high viscosity index. When the foregoing polymerization is effected by adding aluminum powder to said catalyst mixture, the content of halogen in the resulting polyolefin oil can be decreased all the more.