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US5094766A Dispersant-antioxidant viscosity index improver 失效
分散剂 - 抗氧化剂粘度指数改进剂

Dispersant-antioxidant viscosity index improver
Abstract:
Dispersant and antioxidant viscosity index improvers for lubricating oils containing an EPR or EPT polymer onto which has been graft polymerized with vinyl azlactone and thereafter reacted with N-phenyl-p-phenylene diamine.
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