GB1140687A - Improvements in the polymerisation of conjugated diene monomers - Google Patents

Improvements in the polymerisation of conjugated diene monomers

Info

Publication number
GB1140687A
GB1140687A GB487266A GB487266A GB1140687A GB 1140687 A GB1140687 A GB 1140687A GB 487266 A GB487266 A GB 487266A GB 487266 A GB487266 A GB 487266A GB 1140687 A GB1140687 A GB 1140687A
Authority
GB
United Kingdom
Prior art keywords
molecular ratio
iodide
compound
organometallic
michelin
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
GB487266A
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.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
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 Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Publication of GB1140687A publication Critical patent/GB1140687A/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

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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1,140,687. Polymerizing dienes. MICHELIN & CIE (Compagnie Generale Des Etabs. Michelin). 3 Feb., 1966 [4 Feb., 1965], No. 4872/66. Heading C3P. Polymers of conjugated dienes, e.g. butadiene, are made by effecting polymerization of the monomers in solution, in the presence of a catalyst system comprising (a) an organometallic iodide; (b) a tetravalent titanium compound, and (c) an organometallic compound different from (a) and of the general formula R n M or R n-1 XM, where M represents Al, Mg, or Li of valency n, R is an organic group, and X represents halogen or hydrogen. The relative proportions of (a), (b) and (c) being maintained during polymerization such that there is no substantial molar excess of component (c) over the sum of the molar amounts of components (a) and (b), and when M represents an A1 atom, the molecular ratio of the organometallic iodide to Ti is greater than 2 and the molecular ratio of R n M or R n-1 XM to Ti is from 2.5 to 4.5, when M represents lithium, the component c is R n M, the molecular ratio of iodide to Ti is greater than 2, and the molecular ratio of R n M to Ti is from 1 to 4, and when M represents Mg, the molecular ratio of iodide to Ti is greater than 3, and the molecular ratio of R n M or R n-1 XM to Ti is from 0.5 to 4. The tetravalent Ti compound, e.g. TiCl 4 , and the organometallic compound may be present as a reaction product. Compound (a) may be aluminium diethyl or diisobutyl iodide and it may be prepared in situ. The polymers have a high cis-1,4 content.
GB487266A 1965-02-04 1966-02-03 Improvements in the polymerisation of conjugated diene monomers Expired GB1140687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR4448A FR1436607A (en) 1965-02-04 1965-02-04 Catalysts and polymerization process applicable in particular to the polymerization of conjugated dienes

Publications (1)

Publication Number Publication Date
GB1140687A true GB1140687A (en) 1969-01-22

Family

ID=8570082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB487266A Expired GB1140687A (en) 1965-02-04 1966-02-03 Improvements in the polymerisation of conjugated diene monomers

Country Status (7)

Country Link
BE (1) BE675781A (en)
DE (1) DE1620968B2 (en)
ES (1) ES322612A1 (en)
FR (1) FR1436607A (en)
GB (1) GB1140687A (en)
LU (1) LU50387A1 (en)
NL (2) NL6601342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6407153B1 (en) 1997-09-19 2002-06-18 Bayer Inc. Silica-containing rubber compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6407153B1 (en) 1997-09-19 2002-06-18 Bayer Inc. Silica-containing rubber compositions

Also Published As

Publication number Publication date
LU50387A1 (en) 1966-08-03
ES322612A1 (en) 1966-11-16
BE675781A (en) 1966-05-16
DE1620968B2 (en) 1970-06-11
DE1620968A1 (en) 1969-08-07
NL129665C (en)
NL6601342A (en) 1966-08-05
FR1436607A (en) 1966-04-29

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