发明授权
- 专利标题: Ethylene polymer useful as a lubricating oil viscosity modifier
- 专利标题(中): 乙烯聚合物可用作润滑油粘度调节剂
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申请号: US682286申请日: 1984-12-17
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公开(公告)号: US4575574A公开(公告)日: 1986-03-11
- 发明人: Edward N. Kresge , Gary W. Ver Strate
- 申请人: Edward N. Kresge , Gary W. Ver Strate
- 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: C08F210/00
- IPC分类号: C08F210/00 ; C08F4/00 ; C08F4/60 ; C08F4/62 ; C08F210/16 ; C08F210/18 ; C10M143/14 ; C10N20/02 ; C10N30/02 ; C07C2/02
摘要:
An ethylene ter- or tetrapolymer useful as a viscosity modifier and a process for preparing the polymer. The polymer comprises ethylene, an alpha-olefin, a non-conjugated diene and, optionally, a cationically polymerizable monoolefin. The polymerization catalyst comprises a Ziegler catalyst in conjunction with a cationic polymerization catalyst.
公开/授权文献
- US5835801A Simultaneous metering modes in cameras using audio output 公开/授权日:1998-11-10
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