发明授权
US4505834A Lubricating oil compositions containing graft copolymer as viscosity
index improver-dispersant
失效
含有接枝共聚物的润滑油组合物作为粘度指数改进剂分散剂
- 专利标题： Lubricating oil compositions containing graft copolymer as viscosity index improver-dispersant
- 专利标题（中）： 含有接枝共聚物的润滑油组合物作为粘度指数改进剂分散剂
-
申请号： US201515申请日： 1980-10-27
-
公开(公告)号： US4505834A公开(公告)日： 1985-03-19
- 发明人: Andrew G. Papay , Joseph P. O'Brien
- 申请人： Andrew G. Papay , Joseph P. O'Brien
- 申请人地址： MO St. Louis
- 专利权人： Edwin Cooper, Inc.
- 当前专利权人： Edwin Cooper, Inc.
- 当前专利权人地址： MO St. Louis
- 主分类号： C10M149/18
- IPC分类号： C10M149/18 ; C08F8/32 ; C10M143/02 ; C10N20/04 ; C10N30/02 ; C10N30/04 ; C10N40/25 ; C10M1/32
摘要：
Lubricating oil dispersant VI improvers are made by grafting maleic anhydride to an ethylene/.alpha.-olefin-non-conjugated diene terpolymer in a hydrogen-treated mineral oil solvent using a free radical and then reacting the grafted intermediate with an amine containing only one primary amine group, 1-6 amino nitrogen atoms and 20-36 carbon atoms.
公开/授权文献
- US5017342A Device for immunoassay determinations 公开/授权日：1991-05-21
信息查询
IPC分类:
