Basf Se Corporation

The Procter Gamble Company

Ivette Garcia Castro

Wolfgang Grabarse

Markus Hansch

Maxim Peretolchin

Aaron Flores-Figueroa

Stefan Frenzel

Klaus Muehlbach

Irene Troetsch-Schaller

Kai Gumlich

Ludwig Voelkel

Claudia Wood

Jochen Mezger

Markus Scherer

Dieter Faul

Harald Boehnke

Arno Lange

Günter Oetter

Edward Bohres

Eva Wagner

Szilard Csihony

Markus Brym

Rajan Keshav Panandiker

Dieter Hannu Boeckh

Karl Kolter

Sophia Ebert

Maximilian Angel

Son Nguyen Kim

Karl Haeberle

Stephan Hueffer

Andrea Misske

Rainer Dobrawa

Julie Ann Menkhaus

Klemens Mathauer

Cornelia Roeger-Goepfert

Alejandra Garcia Marcos

Frank Huelskoetter

Werner-Alfons Jung

Christoph Fleckenstein

Josef Neutzner

Volker Wendel

Robert Rupaner

Matthias Laubender

Jack Tinsley

Frank-Olaf Maehling

Stefan Stein

Bernhard Fussnegger

Son Nguyen-Kim

Martin Wendker

Ralf Widmaier

Frank-Olaf Mähling

Maria Heuken

Jan Strittmatter

Karin Neubecker

Rene Koschabek

Michael Schroers

Rouven Konrad

Uwe Rebholz

Ludwig Völkel

Harald Böhnke

Pia Baum

Karolin Geyer

Christian Hubert Weidl

Peter Hössel

Karl-Hermann Strube

Klaus Mühlbach

Heike Pfistner

Adam Blanazs

Olga Pinneker

Hannah Maria Koenig

Hermann Ascherl

Bernd De Potzolli

Marvin Karos

Meik Ranft

Christian Tock

Dawid Marczewski

Gabi Winter

Hannah Maria König

Lysander Chrisstoffels

Rolf Werner

Erik Bohrer

Jennifer Anne Jackson

Peter Schmidt

Irene Trötsch-Schaller

Karolin Monz

Anke Oswald

Nicole Meier

Hubertus Peter Bell

Wolfgang Jahnel

Valentin Cepus

Thomas Kaiser

Norbert Gebhardt

Christof Van Sluijs

Cedric Du Fresne Von Hohenesche

Stephan Schenk

Bernhard Lange

Jessica Staub

Manfred Kroll

Hubert Rehberger

Frank Höfer

Jennifer Jackson

The present invention relates to a comb copolymer comprising in polymerized form a PIB macromonomer of the formula (I) and an acrylate monomer of the formula (II). The invention further relates to a method of preparing the PIB macromonomer of the formula (I) where a polyisobutene phenol of the formula (III) is reacted with (meth)acrylic acid anhydride; and to a lubricant comprising a base oil, the comb copolymer, and further lubricant additives; and to a use of the comb copolymer for improving the viscosity index of a lubricating oil.

Viscosity index improver for lubricants based on polyisobutylenephenyl acrylate comb copolymers

The present invention relates to a middle-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C-Calkyl (meth)acrylate, where a monomer mix comprising the ethylene and the acrylate is polymerized at a pressure of 50 to 400 bar and in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to a liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.

Middle-pressure polymerization process for liquid ethylene copolymers

Lubricants with a terpolymer made of diester, olefin and acrylate The invention relates to a lubricant comprising a terpolymer which comprises in polymerized forma diester selected from di(C-Calkyl)ester of maleic acid, fumaric acid, 2-methylmaleic acid, 2,3-dimethylmaleic acid, 2-methylfumaric acid, 2,3-dimethylfumaric acid, or mixtures thereof, an olefin selected from C-Calky-1-ene, and an acrylate selected from C-Calkyl (meth)acrylate. The invention further relates to the terpolymer, a process for preparing the terpolymer comprising the step of polymerizing the diester, the olefin, and the acrylate; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the terpolymer.

Lubricants with a terpolymer made of diester, olefin and acrylate

An olefin-carboxylic acid copolymer, containing at least one free carboxylic acid side group, or a nitrogen compound quaternized with epoxide in the presence of an olefin-carboxylic acid copolymer, containing at least one free carboxylic acid side group, can be used as a fuel additive or lubricant additive. Processes can be used for preparing additives of this kind and fuels and lubricants additized therewith, such as a detergent additive. These additives, fuels, and lubricants can be used for reduction or prevention of deposits in injection systems of direct injection diesel engines, especially in common rail injection systems; for reduction of fuel consumption of direct injection diesel engines, especially of diesel engines with common rail injection systems; and for minimization of power loss in direct injection diesel engines, especially in diesel engines with common rail injection systems. The additives can also be used for gasoline fuels, especially for operation of DISI engines.

Polycarboxylic acid-based additives for fuels and lubricants

The present invention relates to a continuous high-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized for methylene; and a reactive acrylate which is selected from hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, and hydroxybutyl (meth)acrylate, where a monomer feed comprising the ethylene and the reactive acrylate is polymerized in the presence of at least 2 wt % of a chain transfer agent. The present invention also relates to the liquid ethylene copolymer, to a coating material comprising the liquid ethylene copolymer and to a use of the liquid ethylene copolymer to produce a coating material.

Polymerization process for liquid copolymers of ethylene and hydroxyalkyl(meth)acrylate

A method minimizes power loss in a direct injection diesel engine by adding a copolymer to a diesel fuel composition. The copolymer contains, in a copolymerized form, (A) maleic anhydride, (B) an &#x3b1;-olefin having from 12 to 30 carbon atoms, (C) optionally an additional aliphatic or cycloaliphatic olefin which has at least 4 carbon atoms and is different from monomer (B), and (D) optionally an additional copolymerizable monomer other than monomers (A), (B) and (C). Monomer (D) can be a vinyl ester, a vinyl ether, a (meth)acrylic ester of an alcohol having at least 5 carbon atoms, an allyl alcohol or an ester thereof, a N-vinyl compound, an ethylenically unsaturated aromatic, an &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile, a (meth)acrylamide, or an allylamine. Anhydride functionalities present in the copolymer are partly reacted with at least one compound (E) comprising an alcohol group and/or an amino group, and the anhydride functionalities present are hydrolyzed.

Polymers as additives for fuels

The present invention relates to a continuous high-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C-Calkyl (meth)acrylate, where a monomer feed comprising the ethylene and the acrylate is polymerized in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to the liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.

High-pressure polymerization process for liquid ethylene copolymers

The present invention relates to a lubricant comprising a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate. It further relates to the liquid ethylene copolymer; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.

Lubricant comprising a liquid ethylene copolymer

Copolymers comprising Cto Colefins and at least two different olefindicarboxylic esters and optionally maleic acid or maleic acid derivatives. The olefindicarboxylic esters are firstly esters with linear C- to C-alkyl groups and secondly esters with short-chain linear, branched or cyclic alkyl groups, or esters with aromatic groups. The invention further relates to a process for preparing copolymers of this kind and to the use thereof as pour point depressant for crude oil, mineral oil and/or mineral oil products, preferably as pour point depressant for crude oil.

Copolymers comprising a-olefins and olefin dicarboxylic acid esters, production thereof, and use thereof as pour point depressants for crude oils, mineral oils, or mineral oil products

The present invention relates to the use of an olefin-carboxylic acid copolymer, wherein the copolymer comprises at least one free carboxylic acid side group, or of a nitrogen compound quaternized with epoxide in the presence of an olefin-carboxylic acid copolymer, wherein the copolymer comprises at least one free carboxylic acid side group, as a fuel additive or lubricant additive; to processes for preparing additives of this kind, and to fuels and lubricants additized therewith; such as, more particularly, as a detergent additive; for reduction or prevention of deposits in the injection systems of direct injection diesel engines, especially in common rail injection systems, for reduction of the fuel consumption of direct injection diesel engines, especially of diesel engines with common rail injection systems, and for minimization of power loss in direct injection diesel engines, especially in diesel engines with common rail injection systems; and as an additive for gasoline fuels, especially for operation of DISI engines.

Novel uses of copolymers for removing and/or reducing the level of deposits in the fuel system and/or injection system of direct injection diesel and/or gasoline engines are provided. What is provided is the use of particular copolymers as fuel additive or lubricant additive; to processes for preparation of such additives, and fuels and lubricants added therewith, such as, more particularly, as a detergent additive; to use of these copolymers for reducing the level of or preventing deposits in the fuel systems and especially the injection systems of direct injection diesel engines, especially in common rail injection systems, for reducing the fuel consumption of direct injection diesel engines, especially of diesel engines with common rail injection systems, and for minimizing power loss in direct injection diesel engines, especially in diesel engines with common rail injection systems; and as an additive for gasoline fuels, especially for operation of DISI engines.

Copolymers as additives for fuels and lubricants

The present invention relates to a copolymer obtainable by copolymerization of (A) at least one unsaturated dicarboxylic acid or derivatives thereof, (B) at least one &#x3b1;-olefin having from at least 6 up to and including 20 carbon atoms, (C) optionally at least one C- to C-alkyl ester of acrylic acid or methacrylic acid or a mixture of such alkyl esters and (D) optionally one or more further copolymerizable monomers other than monomers (A), (B) and (C), with a molar incorporation ratio of (A):(B):(C):(D) of 1:0.5 to 2.0:0 to less than 0.5:0 to 0.1 followed by the reaction with at least one dialkylamine (E), where the two alkyl radicals in the at least one dialkylamine (E) are independently alkyl radicals having at least 17 up to 30 carbon atoms.

Copolymer and use thereof for reducing crystallization of paraffin crystals in fuels

A method for minimizing power loss, reducing a fuel consumption and/or for reducing and/or avoiding deposits in a fuel system in the direct injection diesel engines. The method contains adding a copolymer to a fuel composition, wherein the copolymer contains, in a copolymerized form: (A) an ethylenically unsaturated mono- or dicarboxylic acid or a derivative thereof, (B) an &#x3b1;-olefin having from 12 to 30 carbon atoms, (C) optionally an additional aliphatic or cycloaliphatic olefin which has at least 4 carbon atoms and is different from monomer (B) and (D) optionally an additional copolymerizable monomers other than monomers (A), (B) and (C), anhydride or carboxylic acid functionalities present in the copolymer are partly reacted with at least one compound (E) comprising an alcohol group and/or an amino group, and the anhydride functionalities present in the copolymer are hydrolysed and/or carboxylic ester functionalities present in the copolymer are partly hydrolyzed.

Copolymers comprising ethylene, vinyl esters, in particular vinyl acetate and esters of (meth)acrylic acid, selected from esters comprising branched alkyl, cyclic alkyl or optionally alkyl substituted aryl moieties and having a weight average molecular weight of 35,000 g/mol to 120,000 g/mol, formulations of such copolymers in organic solvents and their use as pour point depressant, wax inhibitor and flow enhancer for crude oils.

Copolymers comprising ethylene vinyl esters and esters of (meth)acrylic acid, their formulations and use as pour point depressant, wax inhibitor and flow enhancer for crude oils

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Ludwigshafen, Germany

Ivette Garcia Castro