GB1387594A - Method for producing block copolymers - Google Patents

Method for producing block copolymers

Info

Publication number
GB1387594A
GB1387594A GB1473172A GB1473172A GB1387594A GB 1387594 A GB1387594 A GB 1387594A GB 1473172 A GB1473172 A GB 1473172A GB 1473172 A GB1473172 A GB 1473172A GB 1387594 A GB1387594 A GB 1387594A
Authority
GB
United Kingdom
Prior art keywords
diene
reacted
block
ether
aromatic monomer
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
GB1473172A
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear 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 Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of GB1387594A publication Critical patent/GB1387594A/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
    • 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
    • C08F297/04—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 polymerising vinyl aromatic monomers and conjugated dienes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Polymerization Catalysts (AREA)

Abstract

1387594 Block copolymers GOODYEAR TIRE & RUBBER CO 29 March 1972 [26 April 1971] 14731/72 Heading C3P Block copolymers having at least three blocks, including two terminal non-elastomeric blocks derived from mono-vinyl aromatic hydrocarbon monomers and a central elastomeric block derived from a conjugated diene, in which the central block comprises at least 80 % of 1,4-linkages, are prepared by sequential polymerization in a hydrocarbon solvent catalysed by an organomonolithium compound and an ether, the molar ratio of lithium to ether being 1 : 2 to 1 : 4. The aromatic monomer is first reacted with the catalyst and the resulting living polymer may then be reacted first with the diene and then with a further amount of the same or a different aromatic monomer, or the living polymer may be reacted with a mixture of the diene and the aromatic monomer. In the latter case the central block consists predominantly of diene units at the end which is formed first, but an increasing proportion of vinyl aromatic units is incorporated as the diene is exhausted, the third block being formed when all the diene has reacted. Examples describe the preparation of copolymers of styrene and butadiene or isoprene using a sec-butyllithium-diethyl ether (1 : 2) catalyst.
GB1473172A 1971-04-26 1972-03-29 Method for producing block copolymers Expired GB1387594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13760271A 1971-04-26 1971-04-26

Publications (1)

Publication Number Publication Date
GB1387594A true GB1387594A (en) 1975-03-19

Family

ID=22478209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1473172A Expired GB1387594A (en) 1971-04-26 1972-03-29 Method for producing block copolymers

Country Status (7)

Country Link
BE (1) BE782643A (en)
DE (1) DE2221883A1 (en)
FR (1) FR2136658A5 (en)
GB (1) GB1387594A (en)
IT (1) IT952744B (en)
NL (1) NL7205659A (en)
ZA (1) ZA722076B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5021499A (en) * 1984-11-21 1991-06-04 Exxon Research And Engineering Company Hot melt adhesive containing improved hydrocarbon tackifier resin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237884C1 (en) * 1992-11-10 1994-07-07 Metallgesellschaft Ag Powdery, non-pyrophoric methyl lithium etherate complex and process for its preparation and its use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5021499A (en) * 1984-11-21 1991-06-04 Exxon Research And Engineering Company Hot melt adhesive containing improved hydrocarbon tackifier resin

Also Published As

Publication number Publication date
ZA722076B (en) 1972-12-27
IT952744B (en) 1973-07-30
DE2221883A1 (en) 1972-11-09
NL7205659A (en) 1972-10-30
BE782643A (en) 1972-08-16
FR2136658A5 (en) 1972-12-22

Similar Documents

Publication Publication Date Title
ES441031A1 (en) Process for producing mixture of block copolymers
KR880011212A (en) Polymerization Method
GB996251A (en) Improvements in or relating to polymer manufacture
GB1533683A (en) Non-aqueous dispersion polymerization of conjugated diolefins
JPS56149413A (en) Production of styrene/butadiene copolymer
GB1480443A (en) Thermoplastic block polymers
GB1451144A (en) Organotrilithium polymerization initiators and use thereof
KR890013073A (en) ABC block copolymer based on butadiene, isoprene and styrene, preparation method and use thereof
AU7683587A (en) Abc block copolymers based on butadiene and isoprene, process for their preparation and their use
GB1496359A (en) Butadiene-styrene co-polymerization process and co-polymer produced thereby
US3959412A (en) Block polymer preparation
IE42228L (en) Inhibition of gel formation in continuous (co)¹polymerisation of conjugated dienes
GB1444680A (en) Preparation of block polymers
GB1471004A (en) Method of preparing block polymers
GB1387594A (en) Method for producing block copolymers
GB1491741A (en) Process for producing a transparent block copolymer
EP0238784A2 (en) Process and system for preparing random copolymers having low vinyl contents
KR900000391A (en) AB block copolymer based on butadiene, isoprene and styrene, preparation method thereof and use thereof
EP0096875A1 (en) Lithium alkoxide diamines as modifiers for polymerization of dienes using lithium-based initiators
GB1502327A (en) Organolithium polymerization initiators and their preparation
GB1493675A (en) Process for producing a transparent block copolymer resin
GB962518A (en) Process for the preparation of polymers of isoprene and butadiene
KR880003986A (en) Triblock polymer and its synthesis method
GB1294725A (en) Polymerization of diolefins
GB1312854A (en) Non-linear block copolymer and its preparation

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees