GB1006816A - Prevention of cold flow in conjugated diene polymers - Google Patents

Prevention of cold flow in conjugated diene polymers

Info

Publication number
GB1006816A
GB1006816A GB835364A GB835364A GB1006816A GB 1006816 A GB1006816 A GB 1006816A GB 835364 A GB835364 A GB 835364A GB 835364 A GB835364 A GB 835364A GB 1006816 A GB1006816 A GB 1006816A
Authority
GB
United Kingdom
Prior art keywords
compound
tin
tetravinyl
conjugated diene
cold flow
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
GB835364A
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum 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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of GB1006816A publication Critical patent/GB1006816A/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
    • 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
    • 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

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

Conjugated diene polymers having a reduced tendency to cold flow in the unvulcanized state are prepared by polymerizing a conjugated diene with a catalyst comprising an organo-metallic compound in the presence of a compound R4M where M is silicon, germanium, tin or lead and R is a vinyl, alkyl, cycloalkyl or aryl radical, at least two of said radicals being vinyl. The compound R4M is incorporated in the polymerization mixture at any time prior to shortstopping the polymerization reaction, and the amount of said compound added is generally from 0.005 to 5 millimoles per 100 parts by weight of monomer. The preferred catalysts are selected from (a) an organometallic compound and an iodine-containing component and (b) an organo-lithium compound. Extensive lists of monomers, comonomers, catalyst components and compounds R4M are given. In the examples butadiene is polymerized in a solvent using one of the following catalyst systems:-(a) n-butyllithium and tetravinyl silane or tetravinyl tin; (b) lithium methylnaphthalene and tetravinyl tin and (c) triisobutylaluminium, titanium tetrachloride, iodine or titanium tetraiodide, and tetravinyl tin. The polymers may be vulcanized.
GB835364A 1963-03-01 1964-02-28 Prevention of cold flow in conjugated diene polymers Expired GB1006816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26222663A 1963-03-01 1963-03-01

Publications (1)

Publication Number Publication Date
GB1006816A true GB1006816A (en) 1965-10-06

Family

ID=22996691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB835364A Expired GB1006816A (en) 1963-03-01 1964-02-28 Prevention of cold flow in conjugated diene polymers

Country Status (5)

Country Link
BE (1) BE644498A (en)
DE (1) DE1224046B (en)
ES (1) ES296991A1 (en)
GB (1) GB1006816A (en)
NL (2) NL6401903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2470574A2 (en) * 2009-08-24 2012-07-04 Bridgestone Corporation Process and catalyst system for polydiene production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2470574A2 (en) * 2009-08-24 2012-07-04 Bridgestone Corporation Process and catalyst system for polydiene production
EP2470574A4 (en) * 2009-08-24 2013-07-31 Bridgestone Corp Process and catalyst system for polydiene production

Also Published As

Publication number Publication date
BE644498A (en) 1964-08-28
NL6401903A (en) 1964-09-02
ES296991A1 (en) 1964-09-01
DE1224046B (en) 1966-09-01
NL124889C (en)

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