公开(公告)号：US5073600A

公开(公告)日：1991-12-17

申请号：US420974

申请日：1989-10-12

申请人： John Eugene Gorman ,  John A. Morris

发明人： John Eugene Gorman ,  John A. Morris

IPC分类号： B01F17/52 ,  C08C19/36 ,  C08F8/32 ,  C09K3/00 ,  C10M149/06 ,  C10M149/22 ,  C10N30/02 ,  C10N30/04 ,  C10N70/00

CPC分类号： C10M149/06 ,  C08C19/36 ,  C08F8/32 ,  C08F2800/20 ,  C10M2205/04 ,  C10M2205/06 ,  C10M2215/04 ,  C10M2215/086 ,  C10M2215/22 ,  C10M2215/221 ,  C10M2215/225 ,  C10M2215/226 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2215/30 ,  C10M2217/024 ,  C10M2217/046 ,  C10M2217/06

摘要： A process is provided according to the present invention comprising the steps of: functionalizing a base polymer by grafting alpha-beta unsaturated carboxylic acid, anhydride or ester to a base polymer, the base polymer being selected from the group of hydrogenated polymer of a conjugated diolefin and a copolymer of conjugated diolefins and monoalkenyl arenes, the grafting being performed in a blending device capable of imparting high mechanical energy and in the presence of 3 to 15 percent by weight, based on base polymer, of a suitable diluent oil; reacting the functionalized polymer with an amine; and recovering an animated polymer. This process results in a lower level of scission, crosslinking and coupling than processes which are essentially oil free. The product of this process is an excellent lubricating oil viscosity index improver and additionally has dispersant characteristics.

公开(公告)号：USH1799H

公开(公告)日：1999-08-03

申请号：US164733

申请日：1993-12-07

申请人： Robert Barnett Rhodes ,  Harvey E. Atwood ,  John Eugene Gorman

发明人： Robert Barnett Rhodes ,  Harvey E. Atwood ,  John Eugene Gorman

IPC分类号： C08F8/00 ,  C08F8/04 ,  C08F297/02 ,  C08F297/04 ,  C08G81/02 ,  C10M143/12

CPC分类号： C10M143/12 ,  C08F297/02 ,  C08F297/044 ,  C08F297/046 ,  C08G81/021 ,  C10M2203/108 ,  C10M2205/04 ,  C10M2205/06 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/104 ,  C10N2240/106

摘要： The present invention includes star polymers which can be used as viscosity index improvers in oil compositions formulated for high performance engines. The star polymers have copolymer arms of hydrogenated polyisoprene and polystyrene with sufficient amounts of polystyrene to be finishable as a polymer crumb.

摘要翻译： 本发明包括可用作为高性能发动机配制的油组合物中的粘度指数改进剂的星形聚合物。 星形聚合物具有氢化聚异戊二烯和聚苯乙烯的共聚物臂，其具有足够量的聚苯乙烯作为聚合物碎屑可完成。