Method for monitoring degradation of lubricating oils
    8.
    发明公开
    Method for monitoring degradation of lubricating oils 有权
    Verfahren zurDegradationsüberwachungvonSchmierölen

    公开(公告)号:EP1672052A1

    公开(公告)日:2006-06-21

    申请号:EP05257455.5

    申请日:2005-12-03

    Abstract: A method for monitoring degradation of lubricating oils. The method comprises steps of (a) adding to a lubricating oil at least one compound having formula (I)

    wherein R 1 and R 2 independently are hydrogen, hydroxy, OR 11 , amino or NR 11 R 12 ; R 3 and R 5 independently are alkyl, aryl, aralkyl, heteroalkyl or heterocyclic; R 4 and R 6 independently are hydrogen or alkyl; R 7 , R 8 , R 9 and R 10 independently are cyano, nitro, amide, carboxyl, ester, alkyl or hydrogen; R 11 is alkyl, aryl, aralkyl, heteroalkyl, heterocyclic or alkanoyl; R 12 is hydrogen or alkyl; provided that said at least one compound of formula (I) has at least one substituent selected from among cyano, nitro, hydroxy, hydroxyalkyl, amide, carboxyl, ester and unsaturated alkyl; and (b) measuring a spectroscopic property of the oil to determine degradation of said at least one compound.

    Abstract translation: 一种监测润滑油降解的方法。 该方法包括以下步骤:(a)向润滑油中加入至少一种具有式(I)的化合物,其中R 1和R 2独立地是氢,羟基,OR 11,氨基或NR 11 R 12; R 3和R 5独立地是烷基,芳基,芳烷基,杂烷基或杂环基; R 4和R 6独立地是氢或烷基; R 7,R 8,R 9和R 10独立地为氰基,硝基,酰胺,羧基,酯,烷基或氢; R 11是烷基,芳基,芳烷基,杂烷基,杂环或烷酰基; R 12是氢或烷基; 条件是所述至少一种式(I)化合物具有至少一个选自氰基,硝基,羟基,羟烷基,酰胺,羧基,酯和不饱和烷基中的取代基; 和(b)测量油的光谱性质以确定所述至少一种化合物的降解。

    Method for marking liquid petroleum hydrocarbons
    9.
    发明公开
    Method for marking liquid petroleum hydrocarbons 审中-公开
    Verfahren zum Markieren vonflüssigenPetroleumkohlenwasserstoffen

    公开(公告)号:EP1426435A1

    公开(公告)日:2004-06-09

    申请号:EP03257279.4

    申请日:2003-11-18

    Inventor: Ho, Kim Sang

    Abstract: A method for marking a liquid petroleum hydrocarbon; said method comprising adding to said liquid petroleum hydrocarbon at least one dye having an unsaturated cyclic nucleus comprising at least nine ring atoms, and having at least one (CN) 2 C= substituent and at least one Ar-N= substituent; wherein Ar is a substituted aryl group.

    Abstract translation: 一种液体石油烃标记方法; 所述方法包括向所述液体石油烃中加入至少一种具有包含至少9个环原子的不饱和环核并且具有至少一个(CN)2C =取代基和至少一个Ar-N =取代基的染料; 其中Ar是取代的芳基。

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