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润滑科技信息平台
机械工程学会摩擦学分会 固体润滑国家重点实验室 摩擦学学报
Tetraaromatic diamine compounds as antioxidants
专利摘要

Tetraaromatic diamine compounds having the general formula:are provided wherein a is 0-3; b, c and d independently are integers from 0-5, R1 and R2 together with the carbon atoms to which they are bonded are joined together to form a substituted or unsubstituted C3 to about C30 ring, saturated, partially unsaturated or fully unsaturated, optionally substituted with one or more heteroatoms, a is 0-3; b, c and d independently are integers from 0-5, R3, R4, R5 and R6 are independently hydrogen, a straight or branched C1-C30 alkyl or alkylene group optionally substituted with one or more substituents, a substituted or unsubstituted C3-C12 cycloalkyl, a substituted or unsubstituted C5-C25 aryl, a substituted or unsubstituted C6-C25 arylalkyl, a straight or branched C1-C30 alkoxy group optionally substituted with one or more substituents or two R4 substituents and/or two R5 substituents and/or two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith can be joined together to form a substituted or unsubstituted C3 to about C30 ring, saturated, partially unsaturated or fully unsaturated, optionally substituted with one or more heteroatoms. Lubricating oil compositions containing the tetraaromatic diamine compound additives are also provided. ......

基本信息
  • 专利类型:

    发明专利

  • 申请/专利号:

    US11/706116

  • 申请日期:

    2007-02-13

  • 专利申请人:

    科聚亚公司

  • 分类号:

    ["C10L1/22","C10M133/00"]

  • 发明/设计人:

    MA, QINGGAO

  • 权利要求: 1. A tetraaromatic diamine compound having the general formula:wherein a is 0-3;b, c and d independently are integers from 0-5,R1 and R2 together with the carbon atoms to which they are bonded are joined together to form a saturated or partially saturated C3 to about C30 ring,R3, R4, R5 and R6 are independently hydrogen, a straight or branched C1-C30 alkyl or alkylene group optionally substituted with one or more substituents, a substituted or unsubstituted C3-C12 cycloalkyl, a substituted or unsubstituted C5-C25 aryl, a substituted or unsubstituted C6-C25 arylalkyl, a straight or branched C1-C30 alkoxy group optionally substituted with one or more substituents.2. The tetraaromatic diamine compound of claim 1, wherein R1 and R2 are joined together to form a saturated 5-, 6-, or 7-membered ring.3. The tetraaromatic diamine compound of claim 1, wherein R1 and R2 are joined together to form a partially unsaturated 5-, 6-, or 7-membered ring.4. The tetraaromatic diamine compound of claim 1, wherein two R4 substituents and two R5 substituents and two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith are joined together to form a saturated or partially unsaturated C3 to about C30 ring.5. The tetraaromatic diamine compound of claim 1, wherein two substituents and two R5 substituents and two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith are joined together to form a saturated 5-, 6-, or 7-membered ring.6. The tetraaromatic diamine compound of claim 1, wherein two R4 substituents and two R5 substituents and two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith are joined together to form a partially unsaturated 5-, 6-, or 7-membered ring.7. The tetraaromatic diamine compound of claim 1, wherein R1 and R2 are joined together to form a saturated or partially unsaturated 5-, 6-, or 7-membered ring and two R4 substituents and two R5 substituents and two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith are joined together to form a substituted or unsubstituted and saturated or partially unsaturated 5-, 6-, or 7-membered ring.8. A lubricating oil composition comprising(a) at least one oil of lubricating viscosity and(b) an antioxidant improving effective amount of at least one tetraaromatic diamine compound having the general formula:wherein a is 0-3;b, c and d independently are integers from 0-5,R1 and R2 together with the carbon atoms to which they are bonded are joined together to form a saturated or partially saturated C3 to about C30 ringR3, R4, R5 and R6 are independently hydrogen, a straight or branched C1-C30 alkyl or alkylene group optionally substituted with one or more substituents, a substituted or unsubstituted C3-C12 cycloalkyl, a substituted or unsubstituted C5-C25 aryl, a substituted or unsubstituted C6-C25 arylalkyl, a straight or branched C1-C30 alkoxy group optionally substituted with one or more substituents.9. The lubricating oil composition of claim 8, wherein in the tetraaromatic diamine compound R1 and R2 are joined together to form a saturated 5-, 6-, or 7-membered ring.10. The lubricating oil composition of claim 8, wherein in the tetraaromatic diamine compound R1 and R2 are joined together to form a partially unsaturated 5-, 6-, or 7-membered ring.11. The lubricating oil composition of claim 1, wherein two R4 substituents and two R5 substituents and two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith are joined together to form a saturated or partially unsaturated C3 to about C30 ring.12. The lubricating oil composition of claim 8, wherein in the tetraaromatic diamine compound R1 and R2 are joined together to form a saturated or partially unsaturated 5-, 6-, or 7-membered ring and two R4 substituents and two R5 substituents and two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith are joined together to form a saturated or partially unsaturated 5-, 6-, or 7-membered ring.13. The lubricating oil composition of claim 8, wherein the at least one oil of lubricating viscosity is selected from the group consisting of engine oils, transmission fluids, hydraulic fluids, gear oils, marine cylinder oils, compressor oils, refrigeration lubricants and mixtures thereof.14. The lubricating oil composition of claim 8, further comprising at least one lubricating oil additive selected from the group consisting of antioxidants, anti-wear agents, detergents, rust inhibitors, dehazing agents, demulsifying agents, metal deactivating agents, friction modifiers, pour point depressants, antifoaming agents, co-solvents, package compatibilisers, corrosion-inhibitors, ashless dispersants, dyes, extreme pressure agents and mixtures thereof.15. The lubricating oil composition of claim 8, further comprising at least one lubricating oil additive selected from the group consisting of an alkylated diphenylamine, alkylated hindered phenolic, alkylated substituted or unsubstituted phenylenediamine, alkylated oil soluble copper compound, alkylated sulfur containing compound known to impart oxidation stability and mixtures thereof.16. The lubricating oil composition of claim 15, wherein the alkylated sulfur containing compound known to impart oxidation stability is selected from the group consisting of phenothiazines, sulfurized olefins, thiocarbamates, sulfur bearing hindered phenolics, zinc dialkyldithiophosphates and mixtures thereof.17. The lubricating oil composition of claim 8, having a phosphorous content of less than about 0.1 weight percent.18. An additive package comprising about 1 to about 75 weight of at least one tetraaromatic diamine compound of claim 1.19. A stabilizer-containing composition comprising (a) an organic material subject to oxidative, thermal, and/or light-induced degradation and in need of stabilization to prevent or inhibit such degradation; and (b) a stabilization effective amount of at least one tetraaromatic diamine compound of claim 1.20. A method for stabilizing an organic material subject to oxidative, thermal, and/or light-induced degradation and in need of stabilization to prevent or inhibit such degradation, the method comprising adding to the organic material a stabilizing amount of at least one tetraaromatic diamine compound of claim 1.21. The tetraaromatic diamine compound of claim 1, wherein two R4 substituents and/or two R5 substituents and/or two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith are joined together to form a saturated or partially saturated C3 to about C30 ring.22. The lubricating oil composition of claim 8, wherein two R4 substituents and/or two R5 substituents and/or two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith are joined together to form a saturated or partially saturated C3 to about C30 ring.
原文

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