GB1212386A - The co-polymerisation of conjugated dienes - Google Patents

The co-polymerisation of conjugated dienes

Info

Publication number
GB1212386A
GB1212386A GB801168A GB801168A GB1212386A GB 1212386 A GB1212386 A GB 1212386A GB 801168 A GB801168 A GB 801168A GB 801168 A GB801168 A GB 801168A GB 1212386 A GB1212386 A GB 1212386A
Authority
GB
United Kingdom
Prior art keywords
compound
conjugated diene
michelin
organo
feb
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
GB801168A
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 GB1212386A publication Critical patent/GB1212386A/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

Abstract

1,212,386. Conjugated diene-vinyl aromatic copolymers. MICHELIN & CIE (Compagnie Generale des Establissements Michelin). 19 Feb., 1968 [20 Feb., 1967], No. 8011/68. Heading C3P. Stereoblock copolymers in which one of the blocks has a statistical distribution of monomer units are obtained by copolymerizing a conjugated diene and a vinyl aromatic compound in solution in a hydrocarbon and using a catalyst comprising an organo-lithium compound in two stages, in the former optionally using an aprotic polar compound, and in the latter essentially using 0À5 to 2 moles of hexamethylphosphorotriamide per mole of organo-lithium compound. Specified aprotic polar compounds are hexamethylphosphoramide (used in amounts of less than 0À5 mole per mole of organolithium compound), dioxan tetrahydrofuran, other ethers, and a tertiary amine. The polymers have a higher 1,2- or 3,4-content in the statistical block. The process results in a polymer without terminal polyvinyl aromatic block(s). Further conjugated diene may be added between the two stages. Butadiene and styrene are the specified monomers.
GB801168A 1967-02-20 1968-02-19 The co-polymerisation of conjugated dienes Expired GB1212386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR95699A FR1519743A (en) 1967-02-20 1967-02-20 Polymerization and copolymerization of conjugated dienes and vinyl aromatic compounds

Publications (1)

Publication Number Publication Date
GB1212386A true GB1212386A (en) 1970-11-18

Family

ID=8625598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB801168A Expired GB1212386A (en) 1967-02-20 1968-02-19 The co-polymerisation of conjugated dienes

Country Status (7)

Country Link
BE (1) BE710008A (en)
DE (1) DE1745172B1 (en)
ES (1) ES350700A1 (en)
FR (1) FR1519743A (en)
GB (1) GB1212386A (en)
LU (1) LU55509A1 (en)
NL (2) NL6802318A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387757A (en) 1980-09-20 1983-06-14 Bridgestone Tire Company Limited Pneumatic tires
US4387756A (en) 1980-09-10 1983-06-14 Bridgestone Tire Company Limited Pneumatic tires
US4845154A (en) * 1980-03-07 1989-07-04 Shell Internationale Research Maatschappij B.V. Copolymers of aromatic vinyl compounds and conjugated diolefins having substantial increase in aromatic vinyl compound differential content
US4948849A (en) * 1980-03-07 1990-08-14 Shell Internationale Research Maatschappij B.V. Process for making copolymers of aromatic vinyl compounds ADD conjugated diolefins having substantial increase in aromatic vinyl compound differential content

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845154A (en) * 1980-03-07 1989-07-04 Shell Internationale Research Maatschappij B.V. Copolymers of aromatic vinyl compounds and conjugated diolefins having substantial increase in aromatic vinyl compound differential content
US4948849A (en) * 1980-03-07 1990-08-14 Shell Internationale Research Maatschappij B.V. Process for making copolymers of aromatic vinyl compounds ADD conjugated diolefins having substantial increase in aromatic vinyl compound differential content
US4387756A (en) 1980-09-10 1983-06-14 Bridgestone Tire Company Limited Pneumatic tires
US4387757A (en) 1980-09-20 1983-06-14 Bridgestone Tire Company Limited Pneumatic tires

Also Published As

Publication number Publication date
LU55509A1 (en) 1968-10-14
BE710008A (en) 1968-07-29
FR1519743A (en) 1968-04-05
NL6802318A (en) 1968-08-21
ES350700A1 (en) 1969-05-01
DE1745172B1 (en) 1971-07-29
NL134845C (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years