发明授权
- 专利标题: Lubricating oil compositions containing ethylene-alpha-olefin polymers of controlled sequence distribution and molecular heterogeneity
- 专利标题(中): 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
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申请号: US564018申请日: 1983-12-21
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公开(公告)号: US4507515A公开(公告)日: 1985-03-26
- 发明人: John E. Johnston , Ricardo Bloch , Gary W. Ver Strate , W. R. Song
- 申请人: John E. Johnston , Ricardo Bloch , Gary W. Ver Strate , W. R. Song
- 申请人地址: NJ Florham Park
- 专利权人: Exxon Research & Engineering Co.
- 当前专利权人: Exxon Research & Engineering Co.
- 当前专利权人地址: NJ Florham Park
- 主分类号: C08F210/16
- 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
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.
公开/授权文献
- US5705878A Flat scanning stage for scanned probe microscopy 公开/授权日:1998-01-06
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