(METH)ACRYLATE POLYMERS FOR IMPROVING THE VISCOSITY INDEX

• Main Authors: BARTELS, THORSTEN, KOSCHABEK, RENE, KUENZEL, SANDRA, WEBER, MARKUS, WINCIERZ, CHRISTOPH
• Format: Patent
• Language: English; French
• Published: 06.06.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; FUELS; LUBRICANTS; LUBRICATING COMPOSITIONS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

The invention relates to a (meth)acrylate polymer for improving the viscosity index, which comprises a) from 5 to 60 wt% of repeating units that are derived from (meth)acrylates of formula (I), where R represents hydrogen or methyl and R1 is an alkyl radical having from 1 to 6 carbon atoms, b) from...