专利检索 ap:"W. R. Song" 第 1 页

1.

发明授权
Lubricating oil compositions containing ethylene-alpha-olefin polymers of controlled sequence distribution and molecular heterogeneity 失效
标题翻译：含有控制序列分布和分子异质性的乙烯-α-烯烃聚合物的润滑油组合物

公开(公告)号：US4507515A

公开(公告)日：1985-03-26

申请号：US564018

申请日：1983-12-21

申请人： John E. Johnston , Ricardo Bloch , Gary W. Ver Strate , W. R. Song

发明人： John E. Johnston , Ricardo Bloch , Gary W. Ver Strate , W. R. Song

IPC分类号： C08F210/16 , C08F210/18 , C08L7/00 , C08L21/00 , C08L23/00 , C08L23/16 , C08L33/00 , C08L33/02 , C08L51/00 , C08L51/02 , C08L101/00 , C10M143/00 , C10M143/02 , C10M143/04 , C10N20/02 , C10N20/04 , C10N30/02 , C10M1/18

CPC分类号： C10M143/02 , C08F210/16 , C08L23/16 , C08F210/18 , C08L2203/40 , C08L2205/02 , C10M2205/022 , C10M2205/14 , C10N2220/02

摘要： Ethylene-alpha-olefin copolymers are disclosed being particularly useful as improving the low temperature viscosity and pumpability properties of lubricating oil comprised of a major and minor component each of which have a defined ethylene sequence distribution with respect to the number of ethylenes in sequences of three or more and the percent of ethylene sequences of three or more ethylene units. Ethylene-propylene copolymers are the preferred embodiment.