GB1284165A - A process for the preparation of a conjugated diene polymer - Google Patents

A process for the preparation of a conjugated diene polymer

Info

Publication number
GB1284165A
GB1284165A GB37796/70A GB3779670A GB1284165A GB 1284165 A GB1284165 A GB 1284165A GB 37796/70 A GB37796/70 A GB 37796/70A GB 3779670 A GB3779670 A GB 3779670A GB 1284165 A GB1284165 A GB 1284165A
Authority
GB
United Kingdom
Prior art keywords
polymer
conjugated diene
coupling
block
aug
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
GB37796/70A
Inventor
Harold Elison De La Mare
Charles Harmon Wilcoxen Jr
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1284165A publication Critical patent/GB1284165A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
    • C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C08G81/021—Block or graft polymers containing only sequences of polymers of C08C or C08F
    • C08G81/022—Block or graft polymers containing only sequences of polymers of C08C or C08F containing sequences of polymers of conjugated dienes and of polymers of alkenyl aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber
    • C08C19/30—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
    • C08C19/42—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups
    • C08C19/44—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1284165 Coupling of conjugated diene polymers SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 5 Aug 1970 [7 Aug 1969] 37796/70 Addition to 1276320 Heading C3P The molecular weight of a conjugated diene polymer is increased by forming a lithium terminated polymer by reaction of the diene with an organo-monolithium compound then coupling the "lining polymer" units by reaction with 0À25 to 10 moles per lithium atom of an ester of a monohydric phenol and a monocarboxylic aromatic acid. The process is particularly useful for coupling two-block polymers of formula A-B 1/2 -Li to form an A-B-A polymer, where A is a styrene or α-methylstyrene polymer block and B is an elastomeric block based on a conjugated diene, e.g. butadiene or isoprene. An example describes the use of phenyl benzoate as the coupling agent for a styrene-butadiene block polymer.
GB37796/70A 1969-08-07 1970-08-05 A process for the preparation of a conjugated diene polymer Expired GB1284165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84832469A 1969-08-07 1969-08-07

Publications (1)

Publication Number Publication Date
GB1284165A true GB1284165A (en) 1972-08-02

Family

ID=25302970

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37796/70A Expired GB1284165A (en) 1969-08-07 1970-08-05 A process for the preparation of a conjugated diene polymer

Country Status (10)

Country Link
JP (1) JPS4934478B1 (en)
AU (1) AU1842670A (en)
BE (1) BE754436R (en)
CA (1) CA923248A (en)
DE (1) DE2038972C3 (en)
ES (1) ES382464A2 (en)
FR (1) FR2058189B2 (en)
GB (1) GB1284165A (en)
NL (1) NL164049C (en)
ZA (1) ZA705406B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2053786A5 (en) * 1969-07-17 1971-04-16 Michelin & Cie

Also Published As

Publication number Publication date
CA923248A (en) 1973-03-20
FR2058189A2 (en) 1971-05-28
NL164049C (en) 1980-11-17
BE754436R (en) 1971-02-05
NL7011558A (en) 1971-02-09
DE2038972B2 (en) 1975-11-13
AU1842670A (en) 1972-02-10
FR2058189B2 (en) 1973-01-12
ES382464A2 (en) 1973-01-01
DE2038972C3 (en) 1979-08-30
DE2038972A1 (en) 1971-02-18
NL164049B (en) 1980-06-16
ZA705406B (en) 1971-04-28
JPS4934478B1 (en) 1974-09-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee