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. 20, 2008
Filed:
Sep. 08, 2004
Karl J. Duyck, Waterbury, CT (US);
Theodore E. Nalesnik, Hopewell Junction, NY (US);
Wadim Batorewicz, New Haven, CT (US);
Karl J. Duyck, Waterbury, CT (US);
Theodore E. Nalesnik, Hopewell Junction, NY (US);
Wadim Batorewicz, New Haven, CT (US);
Crompton Corporation, Middlebury, CT (US);
Abstract
A composition of matter is disclosed wherein the composition comprises a hydrazide compound of the formula: wherein: Ris selected from the group consisting of alkyl, alkyl ether, and phenyl; R, R, R, R, and Rare independently selected from the group consisting of hydrogen, alkyl, alkyl ether, and aryl; and n is an integer of from 0 to 10; and wherein: when Ris phenyl, it is of the structure: wherein R, R, and Rare independently selected from the group consisting of hydrogen, alkyl, alkyl ether, and aryl, or Rcan be combined with Rto form a ring of 5 or 6 carbon atoms. The hydrazides are useful as stabilizers for lubricants, greases, and polymeric systems, particularly lubricating oils, as are maleated polymers that have been functionalized with them.