Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic compound containing boron
Reexamination Certificate
2007-11-06
2007-11-06
Jagannathan, Vasu (Department: 1714)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic compound containing boron
C508S168000, C546S013000
Reexamination Certificate
active
10848303
ABSTRACT:
Disclosed are borate and boronate compounds of the formulaewhereR1, R2and R3are independently hydrogen, straight or branched chain alkyl of 1 to 24 carbon atoms, straight or branched chain alkenyl of 2 to 24 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aryl of 6 to 10 carbon atoms, aralkyl of 7 to 15 carbon atoms, alkaryl of 7 to 15 carbon atoms; Ar is substituted or unsubstituted aryl of 6 to 10 carbon atoms; and R4and R5are independently defined as for R1and may also be hydroxyphenyl or alkylated hydroxyphenyl, or R4and R5together with the —OBO— group form a substituted or unsubstituted 5 or 6 membered ring. The borate and boronate compounds are effective as antiwear, extreme pressure, and friction modifying additives for lubricating oils and fuels.
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Levine Jeffrey A.
Wu Si
Ciba Specialty Chemicals Corporation
Goloboy James
Jagannathan Vasu
Stevenson Tyler A.
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