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:
Oct. 17, 1978
Filed:
Mar. 07, 1977
Applicant:
Inventors:
William L Smith, Midland, MI (US);
Jacqueline S Kelyman, Midland, MI (US);
Ladell Jones, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 475 ; 252 / ;
Abstract
Oil soluble polymers corresponding to the formula ##STR1## are ashless oil dispersants in lubricating oils and fuels. In formulas I and II, R is a saturated or substantially saturated polyolefin having a molecular weight of at least about 250; R.sub.1 is hydrogen or ##STR2## wherein R.sub.2 is hydrogen or alkyl of from 1 to about 18 carbon atoms with at least about 60 percent of the R.sub.1 groups being ##STR3## X is ##STR4## Y is a terminal group; and n is from 2 to about 15.