发明名称 |
Gear oil additive compositions and gear oils containing the same |
摘要 |
Gear oil additive concentrates and lubricant compositions containing a combination of additives which minimize noise and vibration that occasionally develop in limited slip axles. The additive combinations include (i) an oil-soluble succinimide of the formula <IMAGE> wherein R1 is alkyl or alkenyl having 8 to 50 carbon atoms, and R2, R3 and R4 are hydrogen atoms or alkyl or alkenyl groups having up to about 4 carbon atoms; and (ii) a boronated or non-boronated carboxylic derivative composition produced by reacting a substituted succinic acylating agent with (a) amine having at least one primary or secondary amino group in the molecule, or (b) at least one alcohol, or (c) a combination of (a) and (b). The substituent of the succinic acylating agent is derived from polyalkene having a number average molecular weight of about 500 to about 100,000. The additive concentrates and lubricant compositions are devoid of any metal-containing component.
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申请公布号 |
US5225093(A) |
申请公布日期 |
1993.07.06 |
申请号 |
US19920984951 |
申请日期 |
1992.12.03 |
申请人 |
ETHYL PETROLEUM ADDITIVES, INC. |
发明人 |
CAMPBELL, DONALD G.;NORMAN, STEPHEN;CONARY, GREGORY S. |
分类号 |
C10M133/00;C10M133/52;C10M141/10 |
主分类号 |
C10M133/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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