发明公开
EP0475560A1 Lubricating oil compositions containing novel combination of stabilizers
失效
Neue Stabilisierungsmittelmischung enthaltendeSchmierölzusammensetzungen。
- 专利标题： Lubricating oil compositions containing novel combination of stabilizers
- 专利标题（中）： Neue Stabilisierungsmittelmischung enthaltendeSchmierölzusammensetzungen。
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申请号： EP91301979.0申请日： 1991-03-11
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公开(公告)号： EP0475560A1公开(公告)日： 1992-03-18
- 发明人: Cohen, STEPHEN Cedric,
- 申请人： PETRO CANADA
- 申请人地址： 5140 Yonge Street, Suite 200 North York, Ontario M2N 616 CA
- 专利权人： PETRO CANADA
- 当前专利权人： PETRO CANADA
- 当前专利权人地址： 5140 Yonge Street, Suite 200 North York, Ontario M2N 616 CA
- 代理机构： W.P. Thompson & Co.
- 优先权： CA2025416 19900914
- 主分类号： C10M141/10
- IPC分类号： C10M141/10
摘要：
The invention relates to a lubricant composition comprising a major amount of lubricating oil selected from a group consisting of hydrotreated oil, poly-α-olefin and paraffinic white oil, and an antioxidant amount of a synergistic mixture of:
(a) a low-volatility, hydrolytically stable, organically substituted phosphite or diphosphite, wherein the substituent groups are alkyl, aryl or alkylaryl, and the phosphite contains substantially no hydroxy groups, and
(b) tris (2-hydroxyethyl-3,5-di-tert-butyl-hydroxy-cinnamate) isocyanurate or tris (3,5-di-tert-butyl)-4-hydroxybenzyl isocyanurate.
(a) a low-volatility, hydrolytically stable, organically substituted phosphite or diphosphite, wherein the substituent groups are alkyl, aryl or alkylaryl, and the phosphite contains substantially no hydroxy groups, and
(b) tris (2-hydroxyethyl-3,5-di-tert-butyl-hydroxy-cinnamate) isocyanurate or tris (3,5-di-tert-butyl)-4-hydroxybenzyl isocyanurate.
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