发明授权
US5021177A Dispersant-antioxidant multifunctional viscosity index improver 失效
分散剂 - 抗氧化剂多功能粘度指数改进剂

Dispersant-antioxidant multifunctional viscosity index improver
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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