ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRIS..MTNORS..SM..................JDIM360 Ver 2.15 (14 Jul 2008) - 1620000/02161325EUROPEAN PATENT APPLICATIONA320100407EP09168516.420090824enenen19996820080828US2010040720101420100310201010C10M 137/10 20060101AFI20091208BHEP deSchmiermittelformulierungen und Verfahren zum Schmieren eines Verbrennungssystems zum Erreichen einer erhöhten Haltbarkeit des EmissionskatalysatorsenLubricant formulations and methods of lubricating a combustion system to achieve improved emissions catalyst durabilityfrFormulations de lubrifiant et procédés de lubrification d'un système de combustion pour obtenir une plus grande durabilité du catalyseur d'émissionsAfton Chemical Corporation04949640AFTON-1050EP500 Spring StreetRichmond, VA 23219USSheets, Roger M. 10905 Tray WayGlen Allen, VA 23060USGuinther, Gregory H. 3100 Old Brookewood WayRichmond, VA 23233USLoper, John T. 1703 Habwood LaneRichmond, VA 23238USDunleavy, Kevin James00078764Knoble & Yoshida LLC p/o De Vries & Metman Overschiestraat 1801062 XK AmsterdamNLATBEBGCHCYCZDEDKEEESFIFRGBGRHRHUIEISITLILTLULVMCMKMTNLNOPLPTROSESISKSMTRALBARS20100407201014

Different zinc dialkyldithiophosphate (ZDDPs) exhibit different volatilities and have different effects on automotive emissions control catalysts. The ZDDPs and their respective decomposition fragments that have low volatility will have a correspondingly lower detrimental effect on combustion emissions control systems, because there are simply fewer phosphorous atoms that will pass through the combustion system to reach the emissions control system. Specifically, it has been discovered that ZDDPs that contain a significant fraction of MIBC ZDDP exhibit significantly lower volatility than other ZDDPs.