GB994726A - Chemical process and product - Google Patents

Chemical process and product

Info

Publication number
GB994726A
GB994726A GB2768363A GB2768363A GB994726A GB 994726 A GB994726 A GB 994726A GB 2768363 A GB2768363 A GB 2768363A GB 2768363 A GB2768363 A GB 2768363A GB 994726 A GB994726 A GB 994726A
Authority
GB
United Kingdom
Prior art keywords
diene
copolymer
content
lithium
cis
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
GB2768363A
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
Publication of GB994726A publication Critical patent/GB994726A/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
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/08—Anhydrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C1/0016—Compositions of the tread
    • 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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—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
    • C08F236/04—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
    • C08F236/10—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 with vinyl-aromatic monomers
    • 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
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L39/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions of derivatives of such polymers
    • C08L39/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
    • C08L39/08—Homopolymers or copolymers of vinyl-pyridine

Abstract

A linear copolymer derived from (A) at least one diene consisting of 1,3-butadiene or isoprene and (B) at least one vinyl-substituted aromatic compound, and in which the diene and aromatic compound are randomly distributed in the copolymer and in which the diene content of the copolymer is characterized by (1) a cis-1,4 structure of at least 30% and a 1,2 structure not in excess of 12%, where the diene is butadiene or piperylene, or (2) a cis-1,4 structure of at least 70% and a 3,4 structure not in excess of 15% and substantially no 1,2 content where the diene is isoprene, is made by the following copolymerization process using a lithium-based catalyst. During the copolymerization reaction the monomer ratio is maintained constant by incremental additions of the faster polymerizing diene monomer. The copolymer may be telomerized by the slower polymerizing monomer by continuing the polymerization after the last incremental addition of the faster polymerizing monomer. The process may be effected continously. The copolymer may be compounded with 40 to 200 parts by weight of carbon black, and 15 to 130 by weight of plasticizer per 100 parts by weight of copolymer. The composition may also include natural rubber, ethylene-propylene rubber, rubbery emulsion copolymers of butadiene and styrene, rubbery copolymers of isoprene having a cis-1,4 content of at least about 90%, or rubbery polymers of butadiene having a cis-1,4 content of at least about 30% and a 1,2 content not in excess of 12%. The vulcanized compositions are used as treads in pneumatic tyres. The lithium-based catalyst is either metallic lithium or a lithium hydrocarbon. The Specification contains an extensive list of lithium hydrocarbons. The polymerization may be effected in bulk or in a hydrocarbon solution. Specified vinyl-aromatics are styrene, alpha-methyl styrene, beta-methyl styrene, para-methyl styrene, and 1- and 2-vinyl naphthalene. The copolymers are recovered from the polymerizate by conventional techniques, e.g. methanol plus an antioxidant.
GB2768363A 1962-07-13 1963-07-12 Chemical process and product Expired GB994726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20970662A 1962-07-13 1962-07-13

Publications (1)

Publication Number Publication Date
GB994726A true GB994726A (en) 1965-06-10

Family

ID=22779919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2768363A Expired GB994726A (en) 1962-07-13 1963-07-12 Chemical process and product

Country Status (10)

Country Link
AT (1) AT272629B (en)
BE (1) BE634869A (en)
CH (1) CH461108A (en)
DE (3) DE1301729B (en)
DK (2) DK107127C (en)
ES (1) ES289936A1 (en)
GB (1) GB994726A (en)
LU (1) LU44053A1 (en)
NL (2) NL136672C (en)
NO (1) NO115319B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023340A1 (en) * 1968-11-14 1970-08-21 Asahi Chemical Ind
DE2117995A1 (en) * 1970-04-16 1971-10-28 Shell Int Research Process for the production of copolymers from conjugated dienes and vinyl aromatic compounds
FR2402680A1 (en) * 1977-09-09 1979-04-06 Dunlop Ltd ELASTOMER COMPOSITIONS CONTAINING A NON-CROSS-LINKABLE CONSTITUENT
US4396741A (en) 1982-03-30 1983-08-02 Shell Oil Company Photometer-controlled anionic polymerization
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
WO1999036451A1 (en) * 1998-01-15 1999-07-22 Basf Aktiengesellschaft Method for producing statistical styrene-butadiene-copolymers
GB2355985A (en) * 1999-08-12 2001-05-09 Goodyear Tire & Rubber Synthesis of styrene butadiene rubber
US8053542B2 (en) 2008-04-30 2011-11-08 Styron Europe Gmbh Styrene-butadiene polymers with styrene gradient and methods of making the same
US8648141B2 (en) 2009-03-19 2014-02-11 Styron Europe Gmbh Styrene butadiene rubber with novel styrene incorporation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449306A (en) * 1964-04-23 1969-06-10 Phillips Petroleum Co Modified block copolymers and production thereof
GB1604395A (en) * 1977-10-08 1981-12-09 Dunlop Ltd Elastomer compositions and tyre treads comprising them

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094512A (en) * 1959-12-31 1963-06-18 Phillips Petroleum Co Process for the preparation of low vinyl low trans content random copolymer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023340A1 (en) * 1968-11-14 1970-08-21 Asahi Chemical Ind
DE2117995A1 (en) * 1970-04-16 1971-10-28 Shell Int Research Process for the production of copolymers from conjugated dienes and vinyl aromatic compounds
FR2402680A1 (en) * 1977-09-09 1979-04-06 Dunlop Ltd ELASTOMER COMPOSITIONS CONTAINING A NON-CROSS-LINKABLE CONSTITUENT
US4350621A (en) 1977-09-09 1982-09-21 Dunlop Limited Elastomer compositions for tire tread
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
US4396741A (en) 1982-03-30 1983-08-02 Shell Oil Company Photometer-controlled anionic polymerization
WO1999036451A1 (en) * 1998-01-15 1999-07-22 Basf Aktiengesellschaft Method for producing statistical styrene-butadiene-copolymers
GB2355985A (en) * 1999-08-12 2001-05-09 Goodyear Tire & Rubber Synthesis of styrene butadiene rubber
GB2355985B (en) * 1999-08-12 2004-01-21 Goodyear Tire & Rubber Synthesis of styrene-butadiene rubber
US8053542B2 (en) 2008-04-30 2011-11-08 Styron Europe Gmbh Styrene-butadiene polymers with styrene gradient and methods of making the same
US8648141B2 (en) 2009-03-19 2014-02-11 Styron Europe Gmbh Styrene butadiene rubber with novel styrene incorporation

Also Published As

Publication number Publication date
NL295247A (en)
DK107127C (en) 1967-04-24
NO115319B (en) 1968-09-16
DE1300239B (en) 1969-07-31
DE1301729B (en) 1969-08-21
CH461108A (en) 1968-08-15
DK107193C (en) 1967-05-01
DE1301261B (en) 1969-08-14
AT272629B (en) 1969-07-10
NL136672C (en)
LU44053A1 (en) 1963-09-13
ES289936A1 (en) 1963-10-16
BE634869A (en)

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