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. 18, 1980
Filed:
Mar. 09, 1978
Applicant:
Inventor:
Richard J Lee, Downers Grove, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 / ; 252 / ; 2605 / ;
Abstract
High molecular weight alkylated phenols, in which the alkyl substituent has an average molecular weight of from about 300 to about 100,000 are nitrosated with nitrous acid anhydride gas, in the presence of an acid catalyst, and the nitrosated product reacted with an amine compound having at least one HN< group to obtain oil-soluble amine derivatives of such nitrosated alkylated phenols suitable as lubricating oil additives having dispersancy properties.