MX3047A - Aditivo mejorador del indice de viscosidad de los polimeros de olefinas, util en las composiciones de aceites - Google Patents

Aditivo mejorador del indice de viscosidad de los polimeros de olefinas, util en las composiciones de aceites

Info

Publication number
MX3047A
MX3047A MX304786A MX304786A MX3047A MX 3047 A MX3047 A MX 3047A MX 304786 A MX304786 A MX 304786A MX 304786 A MX304786 A MX 304786A MX 3047 A MX3047 A MX 3047A
Authority
MX
Mexico
Prior art keywords
additive
useful
improve
viscosity index
oil compositions
Prior art date
Application number
MX304786A
Other languages
English (en)
Inventor
David Yen-Lung Chung
Original Assignee
Exxon Chemical Patents Inc
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 Exxon Chemical Patents Inc filed Critical Exxon Chemical Patents Inc
Publication of MX3047A publication Critical patent/MX3047A/es

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/46Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/82Cooling
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2800/00Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00Chemical modification of a polymer
    • C08F2810/10Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
MX304786A 1985-07-08 1986-07-07 Aditivo mejorador del indice de viscosidad de los polimeros de olefinas, util en las composiciones de aceites MX3047A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/752,627 US4749505A (en) 1985-07-08 1985-07-08 Olefin polymer viscosity index improver additive useful in oil compositions

Publications (1)

Publication Number Publication Date
MX3047A true MX3047A (es) 1993-06-01

Family

ID=25027105

Family Applications (1)

Application Number Title Priority Date Filing Date
MX304786A MX3047A (es) 1985-07-08 1986-07-07 Aditivo mejorador del indice de viscosidad de los polimeros de olefinas, util en las composiciones de aceites

Country Status (10)

Country Link
US (1) US4749505A (es)
EP (1) EP0208525B1 (es)
JP (1) JPS6257404A (es)
AR (1) AR243905A1 (es)
AU (1) AU599319B2 (es)
BR (1) BR8603178A (es)
CA (1) CA1276385C (es)
DE (1) DE3650313T2 (es)
MX (1) MX3047A (es)
ZA (1) ZA864955B (es)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715975A (en) * 1984-08-20 1987-12-29 Texaco Inc. Oil containing dispersant VII olefin copolymer
US4693838A (en) * 1985-10-29 1987-09-15 Exxon Chemical Patents Inc. Multifunctional viscosity index improver
JPS63196690A (ja) * 1987-02-12 1988-08-15 Mitsui Petrochem Ind Ltd 潤滑油組成物
US4804794A (en) * 1987-07-13 1989-02-14 Exxon Chemical Patents Inc. Viscosity modifier polymers
US4921625A (en) * 1988-06-27 1990-05-01 Shell Oil Company Method for preparing functionalized block copolymers
US5277833A (en) * 1988-08-01 1994-01-11 Exxon Chemical Patents Inc. Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid lubricant dispersant additives
US5759967A (en) * 1988-08-01 1998-06-02 Exxon Chemical Patents Inc Ethylene α-olefin/diene interpolymer-substituted carboxylic acid dispersant additives
CA2034759C (en) * 1988-08-01 2003-06-03 Won R. Song Novel ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives
US5229022A (en) * 1988-08-01 1993-07-20 Exxon Chemical Patents Inc. Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920)
US5266223A (en) * 1988-08-01 1993-11-30 Exxon Chemical Patents Inc. Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid dispersant additives
US5350532A (en) * 1988-08-01 1994-09-27 Exxon Chemical Patents Inc. Borated ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives
GB8824037D0 (en) * 1988-10-13 1988-11-23 Shell Int Research Modified dispersant v i improver
US5244590A (en) * 1989-10-12 1993-09-14 Exxon Chemical Patents Inc. Viscosity index improver
US5073600A (en) * 1989-10-12 1991-12-17 Shell Oil Company Dispersant viscosity index improvers
EP0422857A3 (en) * 1989-10-12 1991-12-11 Exxon Chemical Patents Inc. Multifunctional viscosity index improver
US5118433A (en) * 1989-10-12 1992-06-02 Exxon Chemical Patents Inc. Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties
CA2025992A1 (en) * 1989-10-12 1991-04-13 David Y. Chung Multifunctional viscosity index improver derived from polyamine containing one primary amine group and at least one tertiary amine group and degraded ethylene copolymer
US5068047A (en) * 1989-10-12 1991-11-26 Exxon Chemical Patents, Inc. Visosity index improver
CA2036862A1 (en) * 1990-02-23 1991-08-24 Tony L. Caines Continuous process for producing adducted epm or epdm oil solution
US5244971A (en) * 1991-07-22 1993-09-14 Exxon Chemical Patents Inc. Graft polymers for use in engineering thermoplastic blends
DE4139601C2 (de) * 1991-11-30 1994-09-08 Hoechst Ag Copolymerisate und ihre Verwendung als Gleit- und Trennmittel für die Verarbeitung thermoplastischer Kunststoffe
US5424367A (en) * 1991-12-13 1995-06-13 Exxon Chemical Patents Inc. Multiple reaction process in melt processing equipment
US5552096A (en) * 1991-12-13 1996-09-03 Exxon Chemical Patents Inc. Multiple reaction process in melt processing equipment
US5290954A (en) * 1992-08-13 1994-03-01 Eastman Kodak Company High clarity emulsions containing high melt viscosity maleated polypropylene wax
CA2110649C (en) * 1992-12-17 2004-10-26 Jacob Emert Gel-free alpha-olefin dispersant additives useful in oleaginous compositions
US5643859A (en) 1992-12-17 1997-07-01 Exxon Chemical Patents Inc. Derivatives of polyamines with one primary amine and secondary of tertiary amines
CA2110463C (en) * 1992-12-17 2005-02-08 Jacob Emert Gel-free ethylene interpolymer dispersant additives useful in oleaginous compositions
US5420303A (en) * 1993-12-16 1995-05-30 Eastman Chemical Company Process for the maleation of polyethylene waxes
US5578682A (en) * 1995-05-25 1996-11-26 Exxon Chemical Patents Inc. Bimodalization of polymer molecular weight distribution
NO304383B1 (no) * 1996-09-06 1998-12-07 Norske Stats Oljeselskap FremgangsmÕte ved nedbryting av plast og/eller annet polymermateriale
US6060584A (en) * 1998-05-13 2000-05-09 Eastman Chemical Company Process for the degradation of polyolefins
IT1304499B1 (it) * 1998-12-22 2001-03-19 Enichem Spa Procedimento per ridurre il peso molecolare di copolimeri eterpolimeri dell'etilene.
US6433133B1 (en) 1999-11-16 2002-08-13 Eastman Chemical Company Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products
JP4966463B2 (ja) 1999-12-22 2012-07-04 エクソンモービル・ケミカル・パテンツ・インク プロピレン−ベース−接着剤組成物
CA2438024C (en) * 2003-08-14 2013-05-28 Bayer Inc. Peroxide curable butyl formulations
JP2005099712A (ja) * 2003-08-28 2005-04-14 Sharp Corp 表示装置の駆動回路および表示装置
CA2465407C (en) * 2004-04-28 2012-11-13 Rui Resendes Peroxide curable butyl formulations
CA2487906A1 (en) * 2004-11-18 2006-05-18 Lanxess Inc. Rubber composition comprising modified filler
US20060076705A1 (en) * 2004-10-11 2006-04-13 Fowler J N Multiple extruder assembly and process for continuous reactive extrusion
CA2488105A1 (en) * 2004-11-18 2006-05-18 Lanxess Inc. Peroxide cured butyl rubber compositions and a process for making peroxide cured butyl rubber compositions
US7482312B2 (en) * 2005-04-01 2009-01-27 Shell Oil Company Engine oils for racing applications and method of making same
US20100010140A1 (en) * 2005-08-26 2010-01-14 Lanxess Inc. Peroxide curable rubber compound containing high multiolefin halobutyl ionomers
ATE541893T1 (de) * 2005-08-26 2012-02-15 Lanxess Inc Peroxidhärtbare kautschukmasse, enthaltend halobutylionomere mit hohem multiolefingehalt
KR20080039436A (ko) * 2005-08-26 2008-05-07 란세스 인크. 퍼옥시드 경화성 고 멀티올레핀 할로부틸 이오노머의 제조방법
CA2640515C (en) * 2006-02-24 2014-06-10 Ciba Holding Inc. Viscosity breaking process for olefin polymers
CA2578583C (en) * 2006-03-14 2014-06-03 Lanxess Inc. Butyl ionomer having improved surface adhesion
CA2598342C (en) * 2006-09-08 2014-10-14 Lanxess Inc. Peroxide cured thermoplastic vulcanizates comprising butyl rubber
EP2574635A1 (en) 2011-09-28 2013-04-03 Lanxess Inc. Process for continuous production of halogen-free thermoplastic elastomer compositions
EP2814921B1 (en) 2012-02-17 2017-11-08 The Lubrizol Corporation Mixtures of olefin-ester copolymer with polyolefin as viscosity modifier
SG11201404851VA (en) 2012-02-17 2014-09-26 Lubrizol Corp Lubricating composition including esterified copolymer and low dispersant levels suitable for driveline applications
WO2014047017A1 (en) 2012-09-24 2014-03-27 The Lubrizol Corporation Lubricant comprising a mixture of an olefin-ester copolymer with an ethylene alpha-olefin copolymer
AU2014228218B2 (en) 2013-03-15 2017-06-08 Castrol Limited Multiple function dispersant viscosity index improver
US20230107759A1 (en) * 2020-02-20 2023-04-06 Georgia Tech Research Corporation Mechanocatalytic Depolymerization of Plastics

Family Cites Families (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744069A (en) * 1952-04-29 1956-05-01 Shell Dev Compounded lubricating compositions
US2807643A (en) * 1953-02-09 1957-09-24 Shell Dev Preparation of aromatic acids and salts thereof
GB786167A (en) * 1954-09-27 1957-11-13 Shell Res Ltd Improvements in or relating to the preparation of basic oil-soluble polyvalent metalsalts of organic acids and solutions of said basic salts in oils, and the resultingsalts
GB832193A (es) * 1955-12-09 1960-04-06
DD20232A (es) * 1957-01-09 1900-01-01
BE577836A (es) * 1958-04-18
DE1248643B (de) * 1959-03-30 1967-08-31 The Lubrizol Corporation, Cleveland, Ohio (V. St. A.) Verfahren zur Herstellung von öllöslichen aeylierten Aminen
BE602059A (es) * 1959-05-07
US3150088A (en) * 1962-03-23 1964-09-22 Continental Oil Co Highly basic calcium-containing additive agent
NL255193A (es) * 1959-08-24
NL124842C (es) * 1959-08-24
US3087936A (en) * 1961-08-18 1963-04-30 Lubrizol Corp Reaction product of an aliphatic olefinpolymer-succinic acid producing compound with an amine and reacting the resulting product with a boron compound
US3154560A (en) * 1961-12-04 1964-10-27 Monsanto Co Nu, nu'-azaalkylene-bis
DE1234499B (de) * 1962-02-06 1967-02-16 Morgaardshammars Mek Verkst S Einrichtung zur Lagerung und/oder zum Antrieb von Trommeln u. dgl.
GB983040A (en) * 1962-10-08 1965-02-10 Shell Int Research Ashless lubricant additives, their preparation and lubricants containing them
NL137371C (es) * 1963-08-02
US3216936A (en) * 1964-03-02 1965-11-09 Lubrizol Corp Process of preparing lubricant additives
NL130536C (es) * 1964-05-19
US3316177A (en) * 1964-12-07 1967-04-25 Lubrizol Corp Functional fluid containing a sludge inhibiting detergent comprising the polyamine salt of the reaction product of maleic anhydride and an oxidized interpolymer of propylene and ethylene
US3574576A (en) * 1965-08-23 1971-04-13 Chevron Res Distillate fuel compositions having a hydrocarbon substituted alkylene polyamine
NL6607078A (es) * 1966-05-24 1967-11-27
US3442808A (en) * 1966-11-01 1969-05-06 Standard Oil Co Lubricating oil additives
US3786077A (en) * 1967-10-12 1974-01-15 Exxon Research Engineering Co Process for forming monocarboxylic acid
GB1244435A (en) * 1968-06-18 1971-09-02 Lubrizol Corp Oil-soluble graft polymers derived from degraded ethylene-propylene interpolymers
GB1184020A (en) * 1968-12-19 1970-03-11 Shell Int Research Salts of Polyvalent Metals and Alkylsalicylic Acids
US3687905A (en) * 1970-03-16 1972-08-29 Lubrizol Corp Reaction product of carboxylic acid with degraded ethylene-propylene interpolymer
US3862265A (en) * 1971-04-09 1975-01-21 Exxon Research Engineering Co Polymers with improved properties and process therefor
JPS5222988B2 (es) * 1971-08-20 1977-06-21
CA992529A (en) * 1971-12-06 1976-07-06 Exxon Research And Engineering Company Degraded olefin polymer useful as a viscosity index improving additive for lubricating oil
CA991792A (en) * 1971-12-22 1976-06-22 Thomas E. Johnston Continuous process for the manufacture of oil soluble ethylene-propylene copolymers for use in petroleum products
US4092255A (en) * 1974-12-12 1978-05-30 Entreprise De Recherches Et D'activites Petrolieres (E.R.A.P.) Novel lubricating compositions containing nitrogen containing hydrocarbon backbone polymeric additives
US4170561A (en) * 1974-12-12 1979-10-09 Entreprise De Recherches Et D'activities Petrolieres (E.R.A.P.) Lubricating compositions with lactam or thiolactam-containing copolymers
US4068058A (en) * 1975-03-05 1978-01-10 Exxon Research And Engineering Company Aminated polymeric additives for fuel and lubricants
US4068056A (en) * 1975-03-05 1978-01-10 Exxon Research And Engineering Company Aminated polymeric additives for fuel and lubricants
US4068057A (en) * 1975-03-05 1978-01-10 Exxon Research And Engineering Company Aminated polymeric additives for fuel and lubricants
US4160072A (en) * 1975-03-20 1979-07-03 Sekisui Kagaku Kogyo Kabushiki Kaisha Foamable and crosslinkable polyethylene composition, process for its production, and process for producing crosslinked polyethylene foams using said composition
AU498559B2 (en) * 1975-06-25 1979-03-15 Exxon Research And Engineering Company Lubricating oil concentrate
CA1088694A (en) * 1975-07-31 1980-10-28 Robert L. Stambaugh Polyolefin grafted with polymers of nitrogen containing monomers and lubricants and fuel compositions containing same
US4235731A (en) * 1976-10-18 1980-11-25 Shell Oil Company Modified terpolymer dispersant - VI improver
US4113639A (en) * 1976-11-11 1978-09-12 Exxon Research & Engineering Co. Lubricating oil composition containing a dispersing-varnish inhibiting combination of an oxazoline compound and an acyl nitrogen compound
US4161452A (en) * 1977-01-28 1979-07-17 Rohm And Haas Company Polyolefinic copolymer additives for lubricants and fuels
US4144181A (en) * 1977-04-29 1979-03-13 Exxon Research & Engineering Co. Polymeric additives for fuels and lubricants
US4137185A (en) * 1977-07-28 1979-01-30 Exxon Research & Engineering Co. Stabilized imide graft of ethylene copolymeric additives for lubricants
DE2748159C2 (de) * 1977-10-27 1984-06-20 Brown Boveri Reaktor GmbH, 6800 Mannheim Einrichtung zur Begasung vom Primärkühlmittel einer wassergekühlten Kernreaktoranlage
US4160739A (en) * 1977-12-05 1979-07-10 Rohm And Haas Company Polyolefinic copolymer additives for lubricants and fuels
CA1200235A (en) * 1979-01-09 1986-02-04 Gary W. Ver Strate Oil compositions containing ethylene copolymers
US4382007A (en) * 1981-02-02 1983-05-03 Texaco Inc. Novel dispersant-VI improvers and lubricating oil containing same
US4517104A (en) * 1981-05-06 1985-05-14 Exxon Research & Engineering Co. Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions
US4552930A (en) * 1981-08-22 1985-11-12 Showa Denko Kabushiki Kaisha Visbroken propylene-ethylene random copolymers, process and films
US4440659A (en) * 1982-02-19 1984-04-03 Ethyl Corporation Lubricating oil ashless dispersant and lubricating oils containing same
US4743391A (en) * 1983-03-28 1988-05-10 Chevron Research Company Method for oxidatively degrading an olefinic polymer
US4557847A (en) * 1983-11-21 1985-12-10 Exxon Research & Engineering Co. Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions
US4578430A (en) * 1984-12-19 1986-03-25 Shell Oil Company Controlled degradation or cracking of alpha-olefin polymers
JPH0536274A (ja) * 1990-08-30 1993-02-12 Nec Corp 半導体メモリ装置

Also Published As

Publication number Publication date
AR243905A1 (es) 1993-09-30
DE3650313T2 (de) 1995-10-19
EP0208525A3 (en) 1987-10-21
ZA864955B (en) 1988-07-27
EP0208525B1 (en) 1995-05-03
CA1276385C (en) 1990-11-13
AU5979386A (en) 1987-01-15
AU599319B2 (en) 1990-07-19
EP0208525A2 (en) 1987-01-14
JPS6257404A (ja) 1987-03-13
DE3650313D1 (de) 1995-06-08
BR8603178A (pt) 1987-02-24
US4749505A (en) 1988-06-07

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