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:
Mar. 22, 1977
Filed:
Jul. 16, 1975
Charles Woo, Sarnia, CA;
Exxon Research and Engineering Company, Linden, NJ (US);
Abstract
Synthetic hydrocarbon lubricating oils with very low pour points and low viscosities are produced by polymerizing alpha-olefins of from 5 to 20, preferably 10 to 14 carbon atoms, at temperatures in the range of 300.degree. to 800.degree. F in the presence of an acidic catalyst of the crystalline aluminosilicate zeolite molecular sieve-type. The products are predominantly of the paraffinic and naphthenic hydrocarbon types. Aromaticity can be introduced by polymerizing the olefins in the presence of aromatic hydrocarbons such as benzene. The products are useful as lubricants in arctic climates and in other applications where low pour points are required, such as for transformer oils.