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:
Jan. 21, 2014
Filed:
Jul. 29, 2009
Jan Elsa Eugenia Carty, Sugar Land, TX (US);
Dennis Borisovich Kruchinin, Ince Chester, GB;
Mark Clift Southby, Ince Chester, GB;
Susan Jane Smith, Chester, GB;
Nigel Peter Tait, Chester, GB;
Jan Elsa Eugenia Carty, Sugar Land, TX (US);
Dennis Borisovich Kruchinin, Ince Chester, GB;
Mark Clift Southby, Ince Chester, GB;
Susan Jane Smith, Chester, GB;
Nigel Peter Tait, Chester, GB;
Shell Oil Company, Houston, TX (US);
Abstract
The present invention provides a poly(hydroxycarboxylic acid) amide salt derivative having formula (III): [Y—CO[O-A-CO]—Z—R]pX(III) wherein Y is hydrogen or an optionally substituted hydrocarbyl group, A is a divalent optionally substituted hydrocarbyl group, n is from 1 to 100, preferably from 1 to 10, m is from 1 to 4, q is from 1 to 4 and p is an integer such that pq=m, Z is an optionally substituted divalent bridging group which is attached to the carbonyl group through a nitrogen atom, R+ is an ammonium group and Xq− is a non-sulphur-containing anion. Furthermore, the present invention provides a lubricating composition and a fuel composition containing the poly(hydroxycarboxylic acid) amide salt derivative and the use of the poly(hydroxycarboxylic acid) amide salt derivative for decreasing the phosphorus volatility of a fluid.