Additive package and lubricating oil composition

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United States of America Patent

PATENT NO 10640724
SERIAL NO

15611842

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An additive package is disclosed for preparing an automotive crankcase lubricating oil composition for an internal combustion engine. The additive package is made by admixing:

    (i) 50 mass % or less of an oil of lubricating viscosity;(ii) 50 mass % or less of at least one overbased metal detergent, preferably at least one overbased metal hydroxybenzoate detergent;(iii) 50 mass % or less of an oil-soluble block or graft co-polymer of at least one polymeric block A which is derived from a hydroxycarboxylic acid and at least one polyalkylene block B which is a residue of a polyalkylene glycol, and(iv) optionally, at least one further additive selected from a dispersant, an antioxidant and/or an antiwear agent.

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Patent Owner(s)

Patent OwnerAddress
INFINEUM INTERNATIONAL LIMITEDMILTON HILL BUSINESS AND TECHNOLOGY CENTRE MILTON HILL ABINGDON OXFORDSHIRE OX13 6BD

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Strong, Anthony J Oxford, GB 12 22
Woodward, Philip J Berkshire, GB 12 29

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