GB924427A - Improvements relating to cis-1,4-polybutadiene - Google Patents

Improvements relating to cis-1,4-polybutadiene

Info

Publication number
GB924427A
GB924427A GB2751260A GB2751260A GB924427A GB 924427 A GB924427 A GB 924427A GB 2751260 A GB2751260 A GB 2751260A GB 2751260 A GB2751260 A GB 2751260A GB 924427 A GB924427 A GB 924427A
Authority
GB
United Kingdom
Prior art keywords
aromatic
polybutadiene
cis
molecular weight
aliphatic hydrocarbon
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
GB2751260A
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 GB924427A publication Critical patent/GB924427A/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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Abstract

Cis-1,4-polybutadiene of controlled molecular weight is obtained by polymerizing butadiene with a catalyst comprising a dialkyl aluminium monohalide, and a compound of a metal of Group VIII of the Periodic Table according to Mendel<\>aeeff, in the presence of a solvent mixture comprising at least one aromatic and at least one aliphatic hydrocarbon, and controlling the average molecular weight of the polymer by increasing the volume ratio between the aromatic and aliphatic hydrocarbons in the mixture. The aliphatic hydrocarbon may be butane, pentane, petroleum ether, heptane, or iso-octane. The aromatic hydrocarbon may be benzene, or toluene. The catalysts exemplified are diethyl aluminium chloride admixed with nickel or cobalt diacetylacetonate.
GB2751260A 1959-08-03 1960-07-29 Improvements relating to cis-1,4-polybutadiene Expired GB924427A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1304959 1959-08-03

Publications (1)

Publication Number Publication Date
GB924427A true GB924427A (en) 1963-04-24

Family

ID=11144117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2751260A Expired GB924427A (en) 1959-08-03 1960-07-29 Improvements relating to cis-1,4-polybutadiene

Country Status (6)

Country Link
BE (1) BE593686A (en)
DE (1) DE1117878B (en)
ES (1) ES260087A1 (en)
GB (1) GB924427A (en)
IT (1) IT613456A (en)
NL (1) NL253954A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224426A (en) 1978-11-13 1980-09-23 The B. F. Goodrich Company Polymerization process for cis-1,4-polybutadiene using cycloalkane solvents and an aromatic polymerization regulator
WO2011086580A2 (en) 2010-01-15 2011-07-21 Reliance Industries Limited High-cis polybutadiene rubber in benign solvents and process for preparation thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE559842A (en) * 1956-08-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224426A (en) 1978-11-13 1980-09-23 The B. F. Goodrich Company Polymerization process for cis-1,4-polybutadiene using cycloalkane solvents and an aromatic polymerization regulator
WO2011086580A2 (en) 2010-01-15 2011-07-21 Reliance Industries Limited High-cis polybutadiene rubber in benign solvents and process for preparation thereof

Also Published As

Publication number Publication date
ES260087A1 (en) 1961-01-16
NL253954A (en)
BE593686A (en)
DE1117878B (en) 1961-11-23
IT613456A (en)

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