专利名称：Dispersant additive and lubricating oil
composition containing same
发明人：Nalesnik, Theodore E.,Kapuscinski, Maria
M.,Migdal, Cyril Andrew
申请号：EP92304542.1申请日：19920520公开号：EP0515152B1公开日：19970402
摘要：An additive composition comprising a graft and amine-derivatized copolymerprepared from ethylene and at least one C3 to C10 alpha-monoolefin and, optionally, apolyene selected from non-conjugated dienes and trienes, the copolymer having anumber average molecular weight ranging from 5,500 to 50,000 and having graftedthereon at least 1.8 molecules of a carboxylic acid acylating function per molecule of thecopolymer the grafted copolymer being reacted with an amine substitutedphenothiazine to form the grafted and amine-derivatized copolymer.
申请人：ETHYL ADDITIVES CORP,DSM COPOLYMER
地址：US,US
国籍：US,US
代理机构：Ben-Nathan, Laurence Albert
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