Lubricant compositions and processes for preparing same
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United States of America Patent
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Apr 22, 2014
Grant Date -
Dec 5, 2013
app pub date -
Jun 1, 2012
filing date -
Jun 1, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a method for stabilizing a dispersion of a carbon nanomaterial in a lubricating oil basestock. The method includes providing a lubricating oil basestock; dispersing a carbon nanomaterial in the lubricating oil basestock; and adding at least one block copolymer thereto. The at least one block copolymer has two or more blocks includes at least one alkenylbenzene block and at least one linear alpha olefin block. The at least one block copolymer is present in an amount sufficient to stabilize the dispersion of the carbon nanomaterial in the lubricating oil basestock. Also provided is a lubricating engine oil having a composition including: a lubricating oil base stock; a carbon nanomaterial dispersed in the lubricating oil basestock; and at least one block copolymer.
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