发明名称 |
Ashless or reduced ash quaternary detergents |
摘要 |
A composition of an oil-soluble ionic detergent that does not contribute metal ions to the composition, and which comprises a quaternary non-metallic pnictogen cation and an organic anion having at least one hydrocarbyl group of sufficient length to impart oil solubility to the detergent, the detergent having a total base number (TBN) to total acid number (TAN) ratio of at least 2:1 imparts ash-free basicity to a lubricant composition. |
申请公布号 |
US8765650(B2) |
申请公布日期 |
2014.07.01 |
申请号 |
US201013203852 |
申请日期 |
2010.03.01 |
申请人 |
The Lubrizol Corporation |
发明人 |
Delbridge Ewan E.;Carrick Virginia A.;Pudelski John K.;Gieselman Matthew D.;Friend Christopher L.;Mosier Patrick E.;Rogers Michelle M.;Tierney Mark L. |
分类号 |
C10M133/04 |
主分类号 |
C10M133/04 |
代理机构 |
|
代理人 |
Shold, Esq. David M.;Esposito, Esq. Michael F. |
主权项 |
1. A composition comprising an oil-soluble ionic detergent, which detergent comprises
(a) a quaternary ammonium cation and (b) an organic anion having at least one aliphatic hydrocarbyl group of sufficient length to impart oil solubility to the detergent; said oil-soluble ionic detergent having a total base number (TBN) to total acid number (TAN) ratio of at least about 2:1; wherein said oil-soluble ionic detergent exhibits a TBN of at least about 10 arising from a non-metallic base, and wherein said oil-soluble ionic detergent comprises a stoichiometric excess of quaternary ammonium cations of (a) over organic anions of (b) such that said cations and anions are present in an equivalent ratio (a):(b) of at least about 2:1; and wherein the overbased detergent further comprises an oxo-anion which comprises a carbonate, bicarbonate, borate, hydroxide, nitrate, phosphate, sulfate, or carboxylate ion or mixtures thereof, said carboxylate ion containing 5 or fewer carbon atoms. |
地址 |
Wickliffe OH US |