发明授权
- 专利标题: Dispersant-antioxidant multifunctional viscosity index improver
- 专利标题(中): 分散剂 - 抗氧化剂多功能粘度指数改进剂
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申请号: US513374申请日: 1990-04-23
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公开(公告)号: US5021177A公开(公告)日: 1991-06-04
- 发明人: Maria M. Kapuscinski , Thomas F. Derosa , Robert T. Biggs , Theodore E. Nalesnik
- 申请人: Maria M. Kapuscinski , Thomas F. Derosa , Robert T. Biggs , Theodore E. Nalesnik
- 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: C10M143/00
- IPC分类号: C10M143/00 ; C10M149/04 ; C10M149/06
摘要:
Dispersant viscosity index improvers for lubricating oils contain an EPR or EPT polymer onto which has been graft polymerized with isocyanatoethyl methacrylate and thereafter reacted with N-phenyl-p-phenylene diamine.
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