GB1019700A - A process for the production of polybutadiene with improved processing properties - Google Patents

A process for the production of polybutadiene with improved processing properties

Info

Publication number
GB1019700A
GB1019700A GB3092664A GB3092664A GB1019700A GB 1019700 A GB1019700 A GB 1019700A GB 3092664 A GB3092664 A GB 3092664A GB 3092664 A GB3092664 A GB 3092664A GB 1019700 A GB1019700 A GB 1019700A
Authority
GB
United Kingdom
Prior art keywords
polybutadiene
treated
production
lumps
heat
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
GB3092664A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1019700A publication Critical patent/GB1019700A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C3/00—Treatment of coagulated rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C2/00—Treatment of rubber solutions
    • 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
    • C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F136/02—Homopolymers 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
    • C08F136/04—Homopolymers 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
    • 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
    • C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
    • C08F2410/04—Dual catalyst, i.e. use of two different catalysts, where none of the catalysts is a metallocene

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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A solution of, or solid polybutadiene with predominantly cis-1,4-linkages, which has been produced by solution polymerizing butadiene with an organolithium compound or organometallic mixed catalyst (defined), is submitted to a heat treament at a temperature of between 100 DEG and 220 DEG C., while the Mooney viscosity remains substantially unchanged. Where solid polybutadiene is treated, this may be effected by heating lumps, strips or films in a furnace or during the process of drying moist lumps while being subjected to mechanical stress, e.g. in a screw press. A composition comprising the heat-treated polybutadiene, natural rubber and conventional vulcanizing ingredients is also disclosed.
GB3092664A 1963-07-31 1964-08-04 A process for the production of polybutadiene with improved processing properties Expired GB1019700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF40379A DE1202000B (en) 1963-07-31 1963-07-31 Process for the production of polybutadiene elastomers with predominantly 1,4-linkage and improved processing properties

Publications (1)

Publication Number Publication Date
GB1019700A true GB1019700A (en) 1966-02-09

Family

ID=7098204

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3092664A Expired GB1019700A (en) 1963-07-31 1964-08-04 A process for the production of polybutadiene with improved processing properties

Country Status (4)

Country Link
BE (1) BE651242A (en)
DE (1) DE1202000B (en)
GB (1) GB1019700A (en)
NL (1) NL6408800A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414557A (en) * 1961-01-27 1968-12-03 Phillips Petroleum Co Masticating polybutadiene to reduce cold flow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414557A (en) * 1961-01-27 1968-12-03 Phillips Petroleum Co Masticating polybutadiene to reduce cold flow

Also Published As

Publication number Publication date
NL6408800A (en) 1965-02-01
DE1202000B (en) 1965-09-30
BE651242A (en) 1964-11-16

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