FR2066564A5 - Polymerisation of conjugated dienes - Google Patents

Polymerisation of conjugated dienes

Info

Publication number
FR2066564A5
FR2066564A5 FR7038627A FR7038627A FR2066564A5 FR 2066564 A5 FR2066564 A5 FR 2066564A5 FR 7038627 A FR7038627 A FR 7038627A FR 7038627 A FR7038627 A FR 7038627A FR 2066564 A5 FR2066564 A5 FR 2066564A5
Authority
FR
France
Prior art keywords
alkali metal
catalyst
polymerisation
monomer
atoms
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
FR7038627A
Other languages
French (fr)
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.)
Bridgestone Firestone Inc
Original Assignee
Firestone Tire and Rubber 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 Firestone Tire and Rubber Co filed Critical Firestone Tire and Rubber Co
Application granted granted Critical
Publication of FR2066564A5 publication Critical patent/FR2066564A5/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
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and 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
    • C08F36/04—Homopolymers and 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

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)
  • Polymerization Catalysts (AREA)

Abstract

A monomer (mixture) contg. at least 70 wt.% of a conjugated diene is (co) polymerised, at 5 to 100 degrees C in presence of a catalyst comprising (a) afree-radical anion component obtained in presence of an inert solvent by reaction of an alkali metal with an aromatic hydrocarbon, tetramethylenethane or ketyl; and (b) an alkali metal cpd. chosen from (1) an alkali metal alkoxide or aryl oxide with not more than 20C-atoms; (2) an alkali metal halide; (3) KOH; and (4) a potassium- sulphate,-phosphate,-sulphide,- cyanide, -carbonate or -carboxylate (up to 10C-atoms); the alkali metal cpd. being employed in ratio 0.5-4 mol per mol of anion component; and the catalyst being employed in proportion of 0.1-1 m mol per 100 pbw of monomer(s). The catalyst is especially suitable for polymerisation of butadiene.
FR7038627A 1969-10-27 1970-10-26 Polymerisation of conjugated dienes Expired FR2066564A5 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US86988069A 1969-10-27 1969-10-27
US86987969A 1969-10-27 1969-10-27
US86987769A 1969-10-27 1969-10-27
US86987869A 1969-10-27 1969-10-27

Publications (1)

Publication Number Publication Date
FR2066564A5 true FR2066564A5 (en) 1971-08-06

Family

ID=27505957

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7038627A Expired FR2066564A5 (en) 1969-10-27 1970-10-26 Polymerisation of conjugated dienes

Country Status (3)

Country Link
JP (1) JPS4825743B1 (en)
DE (1) DE2052673A1 (en)
FR (1) FR2066564A5 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2476710B1 (en) * 2009-10-14 2015-03-18 Nippon Soda Co., Ltd. Method for producing polybutadiene

Also Published As

Publication number Publication date
JPS4825743B1 (en) 1973-07-31
DE2052673A1 (en) 1971-05-13

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Legal Events

Date Code Title Description
ST Notification of lapse