发明授权
- 专利标题: Hydrocarbon compositions containing polyolefin graft polymers
- 专利标题(中): 含有聚烯烃接枝聚合物的烃组合物
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申请号: US911612申请日: 1986-09-25
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公开(公告)号: US4764304A公开(公告)日: 1988-08-16
- 发明人: Maria M. Kapuscinski , Christopher S. Liu , William P. Hart
- 申请人: Maria M. Kapuscinski , Christopher S. Liu , William P. Hart
- 申请人地址: NY White Plains
- 专利权人: Texaco Inc.
- 当前专利权人: Texaco Inc.
- 当前专利权人地址: NY White Plains
- 主分类号: C08F8/30
- IPC分类号: C08F8/30 ; C08F8/32 ; C08F255/00 ; C08F255/02 ; C08F257/00 ; C10M149/06 ; C10M149/10 ; C10M149/00
摘要:
Dispersant viscosity index improvers for lubricating oils contain an EPR or EPT polymer onto which has been graft polymerized isocyanatoethyl methacrylate and thereafter reacted with N-methyl piperazine.
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