GB1364950A - Polypentenamers - Google Patents

Polypentenamers

Info

Publication number
GB1364950A
GB1364950A GB5911172A GB5911172A GB1364950A GB 1364950 A GB1364950 A GB 1364950A GB 5911172 A GB5911172 A GB 5911172A GB 5911172 A GB5911172 A GB 5911172A GB 1364950 A GB1364950 A GB 1364950A
Authority
GB
United Kingdom
Prior art keywords
cyclopentene
tungsten
catalyst
dec
polymerization
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
GB5911172A
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 GB1364950A publication Critical patent/GB1364950A/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
    • C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
    • C08G61/04—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
    • C08G61/06—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds
    • C08G61/08—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerization Catalysts (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

1364950 Cyclopentene polymerization catalyst BAYER AG 21 Dec 1972 [21 Dec 1971] 59111/72 Heading C3P A catalyst for the ring-opening polymerization of cyclopentene comprises (a) a tungsten or molybdenum salt, (b) an organo-tin compound and (c) a boron halide or a Lewis base complex therof. The catalyst may be preformed or formed in the presence of the monomer, component (c) preferably being added last in either case. The polymers obtained contain predominantly cis double bonds when (a) is a tungsten salt and the polymerization temperature is -100‹ to -10‹ C., and predominantly trans double bonds when the temperature is -10‹ to + 50‹ C. and (a) is either a tungsten or a molybdenum salt. The molecular weight of the polymer may be controlled by use of a 1-alkene as molecular weight regulator. In examples cyclopentene is polymerized in toluene, in some cases in the presence of 1-butene, using catalysts derived from (a) WCl 6 or MoCl 5 (b) tetra-ethyl or tetrabutyl tin and (c) the BF 3 complex of diethyl either, tetrahydrofuran or anisole.
GB5911172A 1971-12-21 1972-12-21 Polypentenamers Expired GB1364950A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712163395 DE2163395A1 (en) 1971-12-21 1971-12-21 CATALYST SYSTEM AND METHOD FOR MANUFACTURING POLYPENTENAMERS

Publications (1)

Publication Number Publication Date
GB1364950A true GB1364950A (en) 1974-08-29

Family

ID=5828644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5911172A Expired GB1364950A (en) 1971-12-21 1972-12-21 Polypentenamers

Country Status (8)

Country Link
JP (1) JPS4869899A (en)
BE (1) BE793043A (en)
CA (1) CA996296A (en)
DE (1) DE2163395A1 (en)
FR (1) FR2214520B1 (en)
GB (1) GB1364950A (en)
IT (1) IT974880B (en)
NL (1) NL7217297A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1326734C (en) * 1988-06-17 1994-02-01 Robert John Minchak Polymerization with ring-opening cocatalyst

Also Published As

Publication number Publication date
BE793043A (en) 1973-06-20
FR2214520B1 (en) 1978-09-15
NL7217297A (en) 1973-06-25
FR2214520A1 (en) 1974-08-19
CA996296A (en) 1976-08-31
JPS4869899A (en) 1973-09-21
DE2163395A1 (en) 1973-06-28
IT974880B (en) 1974-07-10

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Legal Events

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