GB888027A - Preparation of high quality solid olefin polymers - Google Patents

Preparation of high quality solid olefin polymers

Info

Publication number
GB888027A
GB888027A GB22038/60A GB2203860A GB888027A GB 888027 A GB888027 A GB 888027A GB 22038/60 A GB22038/60 A GB 22038/60A GB 2203860 A GB2203860 A GB 2203860A GB 888027 A GB888027 A GB 888027A
Authority
GB
United Kingdom
Prior art keywords
solution
solid
monomers
alkenes
catalyst
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
GB22038/60A
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.)
Standard Oil Co
Original Assignee
Standard Oil Co
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 Standard Oil Co filed Critical Standard Oil Co
Publication of GB888027A publication Critical patent/GB888027A/en
Expired legal-status Critical Current

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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • 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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene
    • 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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/04—Monomers containing three or four carbon atoms
    • C08F110/06—Propene
    • 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
    • C08F2/00—Processes of polymerisation
    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/14—Organic medium
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/04—Monomers containing three or four carbon atoms
    • C08F210/06—Propene
    • 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
    • C08F6/00—Post-polymerisation treatments
    • C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • 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
    • C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
    • C08F2500/12—Melt flow index or melt flow ratio

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Solid homopolymers and copolymers of 1-alkenes are made by polymerizing a monomer, or mixture of monomers comprising a major proportion of a 1-alkene in the presence of an inert liquid hydrocarbon, and a finely divided solid polymerization catalyst which is insoluble in the hydrocarbon to form a solid polymer as a solution in the reaction mixture, flashing the solution to separate at least a major proportion of any excess monomer as a vapour from the solution, physically separating the solid polymerization catalyst from the solution, extruding the solution, water quenching the extruded solution to solidify the extrudate, steam stripping the solidified extrudate at subatmospheric pressure to remove residual hydrocarbon medium, and recovering a solid 1-alkene polymer. The solid polymer may be melted and re-extruded. Specified 1-alkenes are ethylene, propylene, 1-butene, 1-pentene, 1-heptene, 1-octene, 1-dodecene, 1-tetradecene, 1-hexadecene, and mixtures. The 1-alkenes may also be copolymerized with other monomers such as butadiene, isoprene, chloroprene, piperylene, cyclopentadiene, tetrafluoroethylene, or perfluorovinyl chloride. The solid polymerization catalyst is preferably selected from (1) metals or oxides on supports, e.g. nickel on charcoal or chromia on silica-alumina, (2) metal oxides admixed with aluminium trialkyls (3) the reaction product of a metal halide and an organometallic compound, e.g. titanium tetrachloride and an aluminium trialkyl, or (4) a metal halide in a lower valency state and an organometallic compound, e.g. titanium trichloride and an aluminium trialkyl. The Specification contains an extensive list of such catalysts. The exemplified catalyst is a reaction product of sodium metal and molybdenum on alumina. The monomers polymerized are generally purified. The physical separation of the catalyst is generally effected by filtration through a cellulosic sheet. It may also be effected in a centrifuge or hydrocyclone. The monomers flashed, and the solvents obtained during steam-stripping are all recovered, purified, and reused in the process. The whole process is effected continuously and one method of carrying out the process is indicated in a flowsheet diagram. Specification 748,634 is referred to.
GB22038/60A 1959-06-25 1960-06-23 Preparation of high quality solid olefin polymers Expired GB888027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US888027XA 1959-06-25 1959-06-25

Publications (1)

Publication Number Publication Date
GB888027A true GB888027A (en) 1962-01-24

Family

ID=22213571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22038/60A Expired GB888027A (en) 1959-06-25 1960-06-23 Preparation of high quality solid olefin polymers

Country Status (1)

Country Link
GB (1) GB888027A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1495834B1 (en) * 1964-09-08 1971-01-14 Hoechst Ag Process for the production of homopolymers or copolymers of ethylene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1495834B1 (en) * 1964-09-08 1971-01-14 Hoechst Ag Process for the production of homopolymers or copolymers of ethylene

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