申请人:The Lubrizol Corporation
公开号:EP0778333A2
公开(公告)日:1997-06-11
This invention relates to compositions which are useful as additives in lubricants and fuels, and more particularly, to additives which are chlorine-free or contain only minor amounts of chlorine. More particularly, carboxylic compositions are described which are prepared by reacting a terpolymer derived from a mixture of monomers comprising ethylene, an alpha-olefin containing 3 to about 20 carbon atoms, and a non-conjugated polyene with an alpha,beta-monounsaturated dicarboxylic acid or reactive derivative thereof. These carboxylic compositions may be used in lubricating oil or fuel compositions or may be used to form carboxylic derivative compositions which are useful in lubricating oil and fuel compositions. Such useful carboxylic derivative compositions can be prepared by reacting at least one of the above-described carboxylic compositions with a reactant selected from the group consisting of (A) amines characterized by the presence within their structure of at least one H-N< group, (B) alcohols, (C) reactive metal or reactive metal compounds, and (D) a combination of two or more of any one of (A) through (C), the components of (D) being reacted with one or more of the carboxylic compositions simultaneously or sequentially in any order. In another embodiment, the carboxylic composition may be prepared by reacting a mixture of an alpha-olefin polymer, the above-described terpolymer, and an alpha,beta-monounsaturated dicarboxylic acid or reactive derivative thereof.
本发明涉及可用作润滑油和燃料添加剂的组合物,特别是不含氯或仅含少量氯的添加剂。更具体地说,本发明描述了一种羧基组合物,其制备方法是将由乙烯、含 3 至约 20 个碳原子的α-烯烃和非共轭多烯单体混合物衍生的三元共聚物与α、β-单不饱和二羧酸或其反应衍生物反应。这些羧基组合物可用于润滑油或燃料组合物中,也可用于形成在润滑油和燃料组合物中有用的羧基衍生物组合物。这种有用的羧酸衍生物组合物可以通过将上述羧酸组合物中的至少一种与选自以下组别的反应物反应来制备 (A) 氨基,其特征是在其结构中存在至少一个 H-N< 基团、(B) 醇,(C) 活性金属或活性金属化合物,以及 (D) (A) 至 (C) 中任何一种的两种或两种以上的组合,(D) 的组分以任何顺序同时或依次与一种或多种羧基组合物反应。在另一个实施方案中,羧基组合物可以通过使α-烯烃聚合物、上述三元共聚物和 α、β-单不饱和二羧酸或其反应衍生物的混合物反应来制备。