Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus acids or salts thereof
Reexamination Certificate
2008-05-06
2008-05-06
Eyler, Yvonne (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Phosphorus acids or salts thereof
C562S026000, C568S014000
Reexamination Certificate
active
10702808
ABSTRACT:
In general terms, the present invention includes a process for producing a new zinc dialkyldithiophosphate (ZDDP) offering improved seal compatibility characteristics in engine and transmission oil packages. The present invention additionally includes zinc dialkyldithiophosphate produced in accordance with the disclosed methodologies, and oil additives, lubricants, and engines and transmission comprising the zinc dialkyldithiophosphate of the present invention.
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Dudding Christopher James
Growcott Peter
Kadkhodayan Abbas
Sheets Roger M.
Thomson Paul M.
Afton Chemical Corporation
Eyler Yvonne
MH2 Technology Law Group LLP
Valenrod Yevgeny
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