Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic -co- compound
Reexamination Certificate
2008-05-20
2008-05-20
Griffin, Walter D. (Department: 1797)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic -co- compound
C508S452000
Reexamination Certificate
active
07375061
ABSTRACT:
A composition of matter is disclosed wherein the composition comprises a hydrazide compound of the formula:wherein:R1is selected from the group consisting of alkyl, alkyl ether, and phenyl;R2, R3, R4, R5, and R6are independently selected from the group consisting of hydrogen, alkyl, alkyl ether, and aryl; andn is an integer of from 0 to 10;and wherein:when R1is phenyl, it is of the structure:wherein R7, R8, and R9are independently selected from the group consisting of hydrogen, alkyl, alkyl ether, and aryl, or R7can be combined with R8to 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.
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Batorewicz Wadim
Duyck Karl J.
Nalesnik Theodore E.
Campanell Francis C
Crompton Corporation
Griffin Walter D.
Sher Jaimes
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