| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a process for preparing an additive with at least one property of corrosion reduction, dispersibility or detergency. <P>SOLUTION: The process for preparing an additive comprises steps of: (1) reacting a polymer derived from of an olefin containing 2 to 8 carbon atoms with an acylating agent to form an acylated polymer; and (2) reacting the acylated polymer of step (1) in a medium substantially free of to free of sulfur with: (a) ammonia or an amine to form a succinimide product; or (b) water to form a hydrolyzed product, wherein the mole ratio of the acylating agent to polymer in step (1) is from 0.3:1 to 1.6:1. The invention further relates to compositions containing the additive and its use. <P>COPYRIGHT: (C)2013,JPO&INPIT |
