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BR8603178A - Processo para reduzir o peso molecular de um polimero de olefina,compreendendo a degradacao de um copolimero de etileno soluvel em oleo,e,para formar um aditivo dispersante de v:i.para oleo lubrificante,e,composicao de oleo lubrificante - Google Patents

Processo para reduzir o peso molecular de um polimero de olefina,compreendendo a degradacao de um copolimero de etileno soluvel em oleo,e,para formar um aditivo dispersante de v:i.para oleo lubrificante,e,composicao de oleo lubrificante

Info

Publication number
BR8603178A
BR8603178A BR8603178A BR8603178A BR8603178A BR 8603178 A BR8603178 A BR 8603178A BR 8603178 A BR8603178 A BR 8603178A BR 8603178 A BR8603178 A BR 8603178A BR 8603178 A BR8603178 A BR 8603178A
Authority
BR
Brazil
Prior art keywords
lubricating oil
degradation
understanding
molecular weight
reduce
Prior art date
Application number
BR8603178A
Other languages
English (en)
Inventor
David Yen-Lung Chung
John Eric Johnston
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 BR8603178A publication Critical patent/BR8603178A/pt

Links

Classifications

    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/46—Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal 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
    • B29C48/82—Cooling
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
    • 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
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/10—Chemical 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)
BR8603178A 1985-07-08 1986-07-08 Processo para reduzir o peso molecular de um polimero de olefina,compreendendo a degradacao de um copolimero de etileno soluvel em oleo,e,para formar um aditivo dispersante de v:i.para oleo lubrificante,e,composicao de oleo lubrificante BR8603178A (pt)

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
BR8603178A true BR8603178A (pt) 1987-02-24

Family

ID=25027105

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8603178A BR8603178A (pt) 1985-07-08 1986-07-08 Processo para reduzir o peso molecular de um polimero de olefina,compreendendo a degradacao de um copolimero de etileno soluvel em oleo,e,para formar um aditivo dispersante de v:i.para oleo lubrificante,e,composicao de oleo lubrificante

Country Status (10)

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

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Also Published As

Publication number Publication date
EP0208525A3 (en) 1987-10-21
AU599319B2 (en) 1990-07-19
ZA864955B (en) 1988-07-27
US4749505A (en) 1988-06-07
EP0208525A2 (en) 1987-01-14
MX3047A (es) 1993-06-01
JPS6257404A (ja) 1987-03-13
EP0208525B1 (en) 1995-05-03
DE3650313D1 (de) 1995-06-08
DE3650313T2 (de) 1995-10-19
AR243905A1 (es) 1993-09-30
AU5979386A (en) 1987-01-15
CA1276385C (en) 1990-11-13

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