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. 12, 1974
Pierleone Girotti, San Donato Milanese, IT;
Renato Tesei, San Donato Milanese, IT;
Telemaco Floris, San Donato Milanese, IT;
Snam Progetti S.p.A., San Donato Milanese, IT;
Abstract
A liquid polymer having a very high viscosity of between 250 cSt and 15,000 cSt at 210.degree.F, is prepared by polymerizing one, or a mixture of more than one, n-alpha olefine represented by the formula R - CH = CH.sub.2, in which R is an alkyl radical containing from 6 to 8 carbon atoms, in the presence of a catalyst system formed at a temperature in the range of 0.degree.-150.degree.C by a catalyst consisting of TiCl.sub.4 and a polyiminoalane having the formula: ##EQU1## IN WHICH N IS A WHOLE NUMBER NOT GREATER THAN 50 AND R is an isopropyl radical, and in an atmosphere consisting essentially of an inert gas. The liquid polymer of very high viscosity so formed is useful as a lubricant.