公开(公告)号：US4632769A

公开(公告)日：1986-12-30

申请号：US679471

申请日：1984-12-07

申请人： Antonio Gutierrez ,  Darrell W. Brownawell ,  Ricardo Bloch ,  Jack E. Johnston

发明人： Antonio Gutierrez ,  Darrell W. Brownawell ,  Ricardo Bloch ,  Jack E. Johnston

IPC分类号： C08F8/32 ,  C10M145/10 ,  C10M133/16

CPC分类号： C10M145/10 ,  C08F8/32 ,  C10M2205/00 ,  C10M2205/02 ,  C10M2205/022 ,  C10M2209/08 ,  C10M2209/082 ,  C10M2209/086 ,  C10M2215/04 ,  C10M2215/042 ,  C10M2215/08 ,  C10M2215/082 ,  C10M2215/086 ,  C10M2215/12 ,  C10M2215/22 ,  C10M2215/221 ,  C10M2215/225 ,  C10M2215/226 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2215/30 ,  C10M2217/046 ,  C10M2217/06 ,  C10M2219/085 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/104 ,  C10N2240/106 ,  C10N2270/02

摘要： Oil soluble viscosity index improving ethylene copolymers, such as copolymers of ethylene and propylene; and ethylene, propylene and diolefin; etc., are reacted or grafted with ethylenically unsaturated carboxylic acid moieties, preferably maleic anhydride moieties, and reacted with polyamines having two or more primary amine groups and a C.sub.22 to C.sub.28 olefin carboxylic acid component, preferably alkylene polyamine and alkenyl succinic anhydride, respectively. These reactions can permit the incorporation of varnish inhibition and dispersancy into the ethylene copolymer while inhibiting cross-linking with resulting viscosity increase, haze or gelling. The aforesaid grafting reaction may be carried out thermally, or more preferably with a free radical initiator such as a peroxide in a mineral lubricating oil, in which case the olefin carboxylic acid component, preferably also acts to solubilize insoluble compounds formed by side reactions, such as maleic anhydride grafted oil molecules reacted with amine, to thereby inhibit haze formation, particularly when preparing oil concentrates of the V.I.-dispersant additive for later addition to lubricating oils.

摘要翻译： 改善乙烯共聚物的油溶性粘度指数，如乙烯和丙烯的共聚物; 和乙烯，丙烯和二烯烃; 与烯键式不饱和羧酸部分，优选马来酸酐部分反应或接枝，并分别与具有两个或多个伯胺基的多胺和C 22至C 28烯烃羧酸组分，优选亚烷基多胺和链烯基琥珀酸酐反应。 这些反应可以允许在乙烯共聚物中引入清漆抑制和分散，同时抑制交联，从而导致粘度增加，雾度或胶凝。 上述接枝反应可以在矿物润滑油中热或更优选用自由基引发剂如过氧化物进行，在这种情况下，烯烃羧酸组分也优选溶解通过副反应形成的不溶性化合物，例如 因为马来酸酐接枝的油分子与胺反应，从而抑制雾霾形成，特别是当制备VI-分散剂添加剂的油浓缩物以便后续添加到润滑油中时。