ES250367A1 - Improvements relating to the polymerisation of butadiene - Google Patents

Improvements relating to the polymerisation of butadiene

Info

Publication number
ES250367A1
ES250367A1 ES0250367A ES250367A ES250367A1 ES 250367 A1 ES250367 A1 ES 250367A1 ES 0250367 A ES0250367 A ES 0250367A ES 250367 A ES250367 A ES 250367A ES 250367 A1 ES250367 A1 ES 250367A1
Authority
ES
Spain
Prior art keywords
group viii
viii metal
specified
aluminium
benzoyl
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
ES0250367A
Other languages
Spanish (es)
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of ES250367A1 publication Critical patent/ES250367A1/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
    • C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F136/06—Butadiene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

Butadiene is polymerised, to give a polymer of at least 93% cis-structure, in the presence of a hydrocarbon solvent and a catalyst soluble therein, which catalyst is formed by reacting a dialkyl aluminium halide with a b -diketone derivative of a Group VIII metal, the concentration of the Group VIII metal compound in the solvent being not more than 2 millimoles per litre and the molar ratio of halide to diketone is at least 30. Specified Group VIII metal compounds are the acetylacetonates of divalent and trivalent cobalt, and of divalent nickel and cobalt and nickel acyl-acetonates, benzoyl-acetones, and benzoyl-acetophenones. Diethyl aluminium monochloride is the specified aluminium compound. Specified solvents are benzene, toluene, heptane, octane and cyclohexane.ALSO:In the polymerization of butadiene, to give a polymer of at least 93% cis-structure, in the presence of a hydrocarbon solvent, there is used a catalyst formed by reacting a dialkyl aluminium halide with a beta-diketone derivative of a Group VIII metal, the concentration of the Group VIII metal compound in the solvent being not more than 2 millimols per litre and the molar ratio of halide to diketone being at least 30. Specified Group VIII metal compounds are the acyl acetonates, especially acetylacetonates, of di- and tri-valent cobalt and of divalent nickel, and cobalt and nickel derivatives of benzoyl acetone and benzoyl acetoacetonate. Diethyl aluminium is the specified aluminium compound. Specified solvents are benzene, toluene, heptane, octane and cyclohexane.
ES0250367A 1958-06-27 1959-06-26 Improvements relating to the polymerisation of butadiene Expired ES250367A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT994558 1958-06-27

Publications (1)

Publication Number Publication Date
ES250367A1 true ES250367A1 (en) 1960-01-16

Family

ID=11133438

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0250367A Expired ES250367A1 (en) 1958-06-27 1959-06-26 Improvements relating to the polymerisation of butadiene

Country Status (9)

Country Link
BE (1) BE580103A (en)
CH (1) CH431088A (en)
DE (1) DE1096615B (en)
DK (1) DK126857B (en)
ES (1) ES250367A1 (en)
FR (1) FR1228658A (en)
GB (1) GB849589A (en)
LU (1) LU37336A1 (en)
NL (1) NL240660A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB906334A (en) * 1959-12-31 1962-09-19 Bridgestone Tire Co Ltd Method of manufacturing cis-1,4-polybutadiene
US3170907A (en) * 1959-12-31 1965-02-23 Bridgestone Tire Co Ltd Production of cis-1, 4 polybutadiene with a nickel carboxylic acid salt-boron trifluoride etherate-aluminum trialkyl catalyst
US3300466A (en) * 1960-11-15 1967-01-24 Montedison Spa Process of producing crystalline syndyotactic 1, 2-polybutadiene
NL280988A (en) * 1961-07-17

Also Published As

Publication number Publication date
FR1228658A (en) 1960-08-31
DK126857B (en) 1973-08-27
GB849589A (en) 1960-09-28
LU37336A1 (en)
CH431088A (en) 1967-02-28
DE1096615B (en) 1961-01-05
BE580103A (en)
NL240660A (en)

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