Invention Grant
US09175240B2 Ethylene-based copolymers, lubricating oil compositions containing the same, and methods for making them 有权
乙烯系共聚物,含有它们的润滑油组合物及其制造方法

Ethylene-based copolymers, lubricating oil compositions containing the same, and methods for making them
Abstract:
Provided are ethylene-based copolymers, methods of preparing the same, lubricating oil compositions including the same, methods for preparing such lubricating oil compositions, and end uses for such ethylene-based copolymers and lubricating oil compositions. The ethylene-based copolymers may include from about 35 wt. % to about 60 wt. % of units derived from ethylene and at least 1.0 wt. % of one or more alpha-olefin comonomers having 3 to 20 carbon atoms. The ethylene-based copolymers are substantially amorphous and have a polydispersity index of about 2.8 or less.
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