Lubricating Composition Including Esterified Copolymer And Low Dispersant Levels Suitable For Driveline Applications
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United States of America Patent
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Feb 11, 2016
app pub date -
Aug 22, 2013
filing date -
Feb 17, 2012
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Abstract
A lubricating composition, method of making, and method of use are disclosed. The lubricant includes an esterified copolymer including a backbone that includes units derived from a vinyl aliphatic monomer and units derived from a carboxylic acid monomer, the carboxylic acid monomer comprising an α,β-ethylenically unsaturated dicarboxylic acid or derivative thereof. The lubricating composition also includes an oil of lubricating viscosity. The lubricating composition includes no more than 2.5 wt. % of dispersant for dispersing oxidation products, other than the esterified copolymer.
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