GB1060300A - Process for the production of low molecular weight copolymers of butadiene and isoprene - Google Patents

Process for the production of low molecular weight copolymers of butadiene and isoprene

Info

Publication number
GB1060300A
GB1060300A GB4991563A GB4991563A GB1060300A GB 1060300 A GB1060300 A GB 1060300A GB 4991563 A GB4991563 A GB 4991563A GB 4991563 A GB4991563 A GB 4991563A GB 1060300 A GB1060300 A GB 1060300A
Authority
GB
United Kingdom
Prior art keywords
molecular weight
isoprene
butadiene
dienes
production
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
GB4991563A
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of GB1060300A publication Critical patent/GB1060300A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/38—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of dienes or alkynes
    • C07C2/40—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of dienes or alkynes of conjugated dienes
    • C07C2/403—Catalytic processes
    • C07C2/406—Catalytic processes with hydrides or organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/38—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of dienes or alkynes
    • C07C2/40—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of dienes or alkynes of conjugated dienes
    • C07C2/403—Catalytic processes
    • 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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—Copolymers 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
    • C08F236/04—Copolymers 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
    • C08F236/06—Butadiene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • C07C2531/12—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

Copolymers of butadiene and isoprene of molecular weight between 1000 and 20,000, and a viscosity of about 25 to 1000 centipoises at 50 DEG C. are made by copolymerizing the dienes in the presence of a catalyst comprising metallic lithium, or organolithium compounds, and which is present in an amount of 10 to 200 millimoles per mole of the dienes. The molecular weight of the product is regulated by adding acetylene and/or an allene to the dienes. The catalyst is used in the form of a solution or suspension in an inert diluent. The copolymerization may be effected in bulk, but the presence of a hydrocarbon diluent is preferred. Butyl and phenyl lithiums are the specified organo-metallic compounds. The copolymers are recovered by conventional techniques.
GB4991563A 1962-12-19 1963-12-18 Process for the production of low molecular weight copolymers of butadiene and isoprene Expired GB1060300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC0028701 1962-12-19

Publications (1)

Publication Number Publication Date
GB1060300A true GB1060300A (en) 1967-03-01

Family

ID=7018729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4991563A Expired GB1060300A (en) 1962-12-19 1963-12-18 Process for the production of low molecular weight copolymers of butadiene and isoprene

Country Status (2)

Country Link
GB (1) GB1060300A (en)
NL (1) NL295377A (en)

Also Published As

Publication number Publication date
NL295377A (en)

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