ES350700A1 - The co-polymerisation of conjugated dienes - Google Patents

The co-polymerisation of conjugated dienes

Info

Publication number
ES350700A1
ES350700A1 ES350700A ES350700A ES350700A1 ES 350700 A1 ES350700 A1 ES 350700A1 ES 350700 A ES350700 A ES 350700A ES 350700 A ES350700 A ES 350700A ES 350700 A1 ES350700 A1 ES 350700A1
Authority
ES
Spain
Prior art keywords
compound
organo
stages
conjugated diene
aprotic polar
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
ES350700A
Other languages
Spanish (es)
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 ES350700A1 publication Critical patent/ES350700A1/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

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.
ES350700A 1967-02-20 1968-02-20 The co-polymerisation of conjugated dienes Expired ES350700A1 (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
ES350700A1 true ES350700A1 (en) 1969-05-01

Family

ID=8625598

Family Applications (1)

Application Number Title Priority Date Filing Date
ES350700A Expired ES350700A1 (en) 1967-02-20 1968-02-20 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)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE453298B (en) * 1980-03-07 1988-01-25 Shell Int Research ELASTIC COPOLYMES SUITABLE FOR USE IN DECK AND SET FOR MANUFACTURING THEREOF
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
JPS6030562B2 (en) 1980-09-10 1985-07-17 株式会社ブリヂストン Pneumatic tires with improved tread
JPS6030563B2 (en) 1980-09-20 1985-07-17 株式会社ブリヂストン Pneumatic tires with improved tread

Also Published As

Publication number Publication date
FR1519743A (en) 1968-04-05
DE1745172B1 (en) 1971-07-29
GB1212386A (en) 1970-11-18
LU55509A1 (en) 1968-10-14
NL134845C (en)
BE710008A (en) 1968-07-29
NL6802318A (en) 1968-08-21

Similar Documents

Publication Publication Date Title
GB1515928A (en) Process for producing a block copolymer mixture
GB1028388A (en) Hydrogenated block copolymers, their compositions and process for the preparation ofthe hydrogenated block copolymers
GB1480443A (en) Thermoplastic block polymers
GB1436812A (en) Process for the production of a block copolymers
GB1025295A (en) Process for the preparation of elastomeric block copolymers
ES433204A1 (en) Polymerization process and polymer produced thereby
GB1457023A (en) Process for the production of a block copolymer
GB1527694A (en) Process for preparing conjugated diene polymers
ES350700A1 (en) The co-polymerisation of conjugated dienes
ES413669A1 (en) Polymers and processes therefor
GB1429836A (en) Manufacture of low molecular weight block copolymers of vinyl vinylidene or diene monomers and alkylene oxides
GB1491741A (en) Process for producing a transparent block copolymer
GB1526484A (en) Impact-resistant thermoplastic moulding compositions and the production of graft copolymers therefor
KR840002858A (en) Block copolymers based on fibarolactone and preparation method thereof
GB1229066A (en)
GB1289783A (en)
ES310057A1 (en) A procedure that comprises copolimerizing a larger amount of a conjugated alcadiene with a less amount of a vinyl-aromatic hydrocarbon. (Machine-translation by Google Translate, not legally binding)
GB2007686A (en) Multi-Arm Star Copolymers
Yuki et al. Anionic Copolymerization of 2, 3-Dimethylbutadiene and 1, 1-Diphenyl-ethylene with n-Butyllithium in Benzene
GB962518A (en) Process for the preparation of polymers of isoprene and butadiene
GB1493675A (en) Process for producing a transparent block copolymer resin
ES443215A1 (en) Preparation of a non-linear elastomeric copolymer
ES366414A1 (en) Process for producing rubbery polymers
ES474161A1 (en) Impact-resistant, high softening maleic anhydride copolymers and a process for preparing thereof.
GB1090207A (en) Elastomeric block copolymers