STAR COPOLYMER AND USE THEREOF AS A VISCOSITY IMPROVER

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United States of America Patent

APP PUB NO 20180066096A1
SERIAL NO

15561532

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is a star copolymer (C) including at least 10 wt. % of units derived from styrene monomer and including arms that include a statistical copolymer (EP) including ethylene units and propylene units, and the method for preparing same. Also disclosed is the use thereof in lubricating compositions, in particular for improving the viscosity index, to the lubricating compositions thus obtained and to the uses thereof.

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Patent Owner(s)

Patent OwnerAddress
TOTAL MARKETING SERVICES24 COURS MICHELET PUTEAUX 92800

International Classification(s)

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  • 2016 Application Filing Year
  • C08F Class
  • 2412 Applications Filed
  • 1861 Patents Issued To-Date
  • 77.16 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
CHAVEROUX, Damien PRIGONRIEUX, FR 1 0
DESCROIX, Gregory BRINDAS, FR 8 19
IOVINE, Raphaele MORNANT, FR 7 31
TASSIN, Jean-Francois CHANGE, FR 2 6

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges5628186214201 - 1011 - 2021 - 3031 - 40050100150200250300350400450500550600650700750800850900

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