GB1068283A - Oil additives - Google Patents

Oil additives

Info

Publication number
GB1068283A
GB1068283A GB23083/65A GB2308365A GB1068283A GB 1068283 A GB1068283 A GB 1068283A GB 23083/65 A GB23083/65 A GB 23083/65A GB 2308365 A GB2308365 A GB 2308365A GB 1068283 A GB1068283 A GB 1068283A
Authority
GB
United Kingdom
Prior art keywords
vinyl
monomer
methacrylic acid
polymer
acid esters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB23083/65A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roehm and Haas GmbH
Original Assignee
Roehm and Haas GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Roehm and Haas GmbH filed Critical Roehm and Haas GmbH
Publication of GB1068283A publication Critical patent/GB1068283A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M151/00—Lubricating compositions characterised by the additive being a macromolecular compound containing sulfur, selenium or tellurium
    • C10M151/02—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M149/00—Lubricating compositions characterised by the additive being a macromolecular compound containing nitrogen
    • C10M149/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M149/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amino group
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M149/00—Lubricating compositions characterised by the additive being a macromolecular compound containing nitrogen
    • C10M149/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M149/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrogen-containing hetero ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/026—Butene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/022—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amino group
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/022—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amino group
    • C10M2217/023—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amino group the amino group containing an ester bond
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/024—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amido or imido group
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/028—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrogen-containing hetero ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2221/02—Macromolecular compounds obtained by reactions of monomers involving only carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Lubricants (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

A lubricating oil has dissolved therein a dispersing agent comprising a graft polymer, prepared in the presence of a free radical catalyst, of (1) a preformed oil-soluble homo- or copolymer of acrylic or methacrylic acid esters, and (2) an ethylenically unsaturated monomer containing a tertiary nitrogen atom, the graft polymer containing 2 to 30% by weight, based on the weight of polymer (1), of the monomer (2). In examples (1) is a copolymer of methyl methacrylate and methacrylic acid esters of fatty alcohols and (2) is N-vinyl pyrrolidone.ALSO:A preformed oil-soluble homo- or copolymer of acrylic or methacrylic acid esters is subjected to graft polymerization with an ethylenically-unsaturated monomer containing a tertiary nitrogen atom in the presence of a free-radical catalyst, whereby a graft polymer is formed containing 2 to 30% (based on the weight of preformed polymer) of the said monomer. The preformed polymer may be prepared in bulk or emulsion, followed by dispersion in the N-containing monomer, or prepared in solution e.g. in oil and said monomer added thereto. Specified base polymers are homopolymers of acrylic and methacrylic acid esters of alcohols containing at least 8 carbon atoms and copolymers of these monomers with esters of fumaric or itaconic acid and alcohols containing 8 to 18 carbon atoms, with vinyl acetate, or with compounds of which the homopolymers are oil-insoluble e.g. acrylic and methacrylic acid esters of alcohols with 1 to 4 carbon atoms, or with aminoalkyl esters e.g. dimethyl aminoethyl methacrylate, di-n-butylaminoethyl acrylate, dimethylaminobutyl acrylate and n-butylaminoethyl methacrylate. The tertiary nitrogen-containing monomer is e.g. an N-vinyl lactam such as N-vinyl-2-pyrrolidone, N-vinyl-caprolactam, N - vinyl - 3 - methyl pyrrolidone, N-vinyl - 5 - piperidone and N - vinyl - 4 - n-butyl caprolactam or the corresponding thiolactams. Cyclic N-vinyl imides e.g. N-vinyl succinimide, N-vinyl-a -methyl succinimide and N-vinyl phthalimide may be used as can N-vinyl oxazolidones and N-vinyl carboxylic acid amides e.g. N-vinyl-N-ethylacetamide and N-vinyl-N-methyl benzamide. The free radical catalyst is e.g. azodiisobutyronitrile, tertiary butyl perbenzoate or tertiary butyl hydroperoxide. The aminoalkyl esters specified above may be grafted on to the preformed polymer along with the tertiary nitrogen containing monomer. In the examples, the monomer used is N-vinyl pyrrolidone, together with N-dimethylaminoethyl methacrylate in Example 3. The base polymer is a copolymer of methyl methacrylate and a mixture of methacrylic acid esters of fatty alcohols and the catalyst is tertiary butyl perbenzoate.
GB23083/65A 1964-06-06 1965-05-31 Oil additives Expired GB1068283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER0038086 1964-06-06

Publications (1)

Publication Number Publication Date
GB1068283A true GB1068283A (en) 1967-05-10

Family

ID=7405406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23083/65A Expired GB1068283A (en) 1964-06-06 1965-05-31 Oil additives

Country Status (2)

Country Link
JP (1) JPS5120237B1 (en)
GB (1) GB1068283A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819559A (en) * 1972-12-06 1974-06-25 Gaf Corp Alkyl acrylate-crotonic acid-poly vinyl lactam graft copolymers
US3998910A (en) * 1970-05-14 1976-12-21 Ceskoslovenska Akademie Ved Process for the polymerization and copolymerization of vinyl and diene compounds
US4820776A (en) * 1985-04-24 1989-04-11 Texaco Inc. Hydrocarbon compositions containing polyolefin graft polymers having amine and phenothiazine grafted moieties
US4877415A (en) * 1985-04-24 1989-10-31 Texaco Inc. Hydrocarbon compositions containing polyolefin graft polymers
US4886611A (en) * 1985-04-24 1989-12-12 Texaco Inc. Hydrocarbon compositions containing polyolefin graft polymers
US5188770A (en) * 1989-09-09 1993-02-23 Rphm GmbH Viscosity index improver having detergent properties
EP0750031A2 (en) * 1995-06-19 1996-12-27 The Lubrizol Corporation Dispersant-viscosity improvers for lubricating oil compositions
US5821313A (en) * 1995-06-19 1998-10-13 The Lubrizol Corporation Dispersant-viscosity improvers for lubricating oil compositions
US6124249A (en) * 1998-12-22 2000-09-26 The Lubrizol Corporation Viscosity improvers for lubricating oil compositions
WO2013182581A1 (en) * 2012-06-06 2013-12-12 Evonik Oil Additives Gmbh Fuel efficient lubricating oils
US9080124B2 (en) 2004-07-16 2015-07-14 Evonik Rohmax Additives Gmbh Use of graft polymers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286615U (en) * 1985-11-21 1987-06-02

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998910A (en) * 1970-05-14 1976-12-21 Ceskoslovenska Akademie Ved Process for the polymerization and copolymerization of vinyl and diene compounds
US3819559A (en) * 1972-12-06 1974-06-25 Gaf Corp Alkyl acrylate-crotonic acid-poly vinyl lactam graft copolymers
US4820776A (en) * 1985-04-24 1989-04-11 Texaco Inc. Hydrocarbon compositions containing polyolefin graft polymers having amine and phenothiazine grafted moieties
US4877415A (en) * 1985-04-24 1989-10-31 Texaco Inc. Hydrocarbon compositions containing polyolefin graft polymers
US4886611A (en) * 1985-04-24 1989-12-12 Texaco Inc. Hydrocarbon compositions containing polyolefin graft polymers
US5188770A (en) * 1989-09-09 1993-02-23 Rphm GmbH Viscosity index improver having detergent properties
AU714716B2 (en) * 1995-06-19 2000-01-06 Lubrizol Corporation, The Dispersant-viscosity improvers for lubricating oil compositions
US6639034B2 (en) 1995-06-19 2003-10-28 The Lubrizol Corporation Dispersant-viscosity improvers for lubricating oil compositions
US5821313A (en) * 1995-06-19 1998-10-13 The Lubrizol Corporation Dispersant-viscosity improvers for lubricating oil compositions
US5969068A (en) * 1995-06-19 1999-10-19 The Lubrizol Corporation Dispersant-viscosity improvers for lubricating oil compositions
EP0750031A2 (en) * 1995-06-19 1996-12-27 The Lubrizol Corporation Dispersant-viscosity improvers for lubricating oil compositions
US6881780B2 (en) 1995-06-19 2005-04-19 The Lubrizol Corporation Dispersant-viscosity improvers for lubricating oil compositions
SG79197A1 (en) * 1995-06-19 2001-03-20 Lubrizol Corp Dispersant-viscosity improvers for lubricating oil compositions
EP0750031A3 (en) * 1995-06-19 1997-02-05 Lubrizol Corp
US6294628B1 (en) 1995-06-19 2001-09-25 The Lubrizol Corporation Dispersant-viscosity improvers for lubricating oil compositions
US6331603B1 (en) 1995-06-19 2001-12-18 The Lubrizol Corporation Nitrogen containing acrylic copolymers
US6271184B1 (en) 1998-12-22 2001-08-07 The Lubrizol Corporation Viscosity improvers for lubricating oil-compositions
US6124249A (en) * 1998-12-22 2000-09-26 The Lubrizol Corporation Viscosity improvers for lubricating oil compositions
US9080124B2 (en) 2004-07-16 2015-07-14 Evonik Rohmax Additives Gmbh Use of graft polymers
WO2013182581A1 (en) * 2012-06-06 2013-12-12 Evonik Oil Additives Gmbh Fuel efficient lubricating oils
US9677024B2 (en) 2012-06-06 2017-06-13 Vanderbilt Chemicals, Llc Fuel efficient lubricating oils

Also Published As

Publication number Publication date
JPS5120237B1 (en) 1976-06-23
DE1520696B2 (en) 1972-06-22
DE1520696A1 (en) 1969-04-17

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