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:
May. 01, 2018
Filed:
Jul. 11, 2017
Applicant:
Chevron Oronite Company Llc, San Ramon, CA (US);
Inventor:
William Raymond Ruhe, Jr., Benicia, CA (US);
Assignee:
Chevron U.S.A. Inc., San Ramon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 145/22 (2006.01); C08G 63/685 (2006.01);
U.S. Cl.
CPC ...
C10M 145/22 (2013.01); C08G 63/6856 (2013.01); C10M 2209/102 (2013.01); C10N 2230/02 (2013.01); C10N 2240/102 (2013.01);
Abstract
A polyester composition, suitable for use as a dispersant in lubricating oils, is disclosed. The polyester composition is prepared by reacting (a) an acylating agent selected from an aliphatic-substituted succinic acylating agent, an aromatic polycarboxylic acylating agent, and combinations thereof; and (b) a hydroxyalkyl-substituted tertiary amine compound of the following structure: wherein R' is a Caliphatic group; R in each of the x (RO), y (RO) and z (RO) groups is independently Calkylene; x+y is in a range of 2 to 7; and z is in a range of 1 to 5.