GB944833A - Improvements in the polymerisation of propylene - Google Patents

Improvements in the polymerisation of propylene

Info

Publication number
GB944833A
GB944833A GB824962A GB824962A GB944833A GB 944833 A GB944833 A GB 944833A GB 824962 A GB824962 A GB 824962A GB 824962 A GB824962 A GB 824962A GB 944833 A GB944833 A GB 944833A
Authority
GB
United Kingdom
Prior art keywords
propylene
catalyst
chloride
aluminium compound
absorbed
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
GB824962A
Inventor
Donald F Hoeg
Calvin J Benning
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.)
WR Grace and Co
Original Assignee
WR Grace and 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
Priority to NL277825D priority Critical patent/NL277825A/xx
Priority to FR890627A priority patent/FR1324429A/en
Application filed by WR Grace and Co filed Critical WR Grace and Co
Priority to GB824962A priority patent/GB944833A/en
Publication of GB944833A publication Critical patent/GB944833A/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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • 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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/04—Monomers containing three or four carbon atoms
    • C08F110/06—Propene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

High molecular weight polypropylene is produced using a catalyst comprising a trialkyl aluminium compound in which the alkyl group contains 1 to 8 carbon atoms and titanium di- or tri-chloride having propylene absorbed thereon. The polymerization is carried out at a temperature of 50 to 200 DEG C. and a propylene pressure of 2 to 70 atmospheres. The catalyst is formed by grinding the titanium chloride at room temperature in a propylene atmosphere, preferably at superatmospheric pressure e.g. up to 10 atmospheres until the titanium chloride has absorbed, for example, at least 0.5% of its weight of propylene, and then mixing this ground chloride with the trialkyl aluminium compound. In general the amount of catalyst used is 0.05 to 0.003 grams of total catalyst per gram of propylene to be polymerized. The weight ratio of the titanium chloride with propylene absorbed thereon to the trialkyl aluminium compound may be in the range 5:1 to 1:10. Where the polymerization is performed at a temperature at which the polymer remains in solution, the metallic catalyst can be removed by filtration, if desired after adding a chelating agent. In the examples the trialkyl aluminium compound used is triisobutyl aluminium.
GB824962A 1962-03-09 1962-03-30 Improvements in the polymerisation of propylene Expired GB944833A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL277825D NL277825A (en) 1962-03-30
FR890627A FR1324429A (en) 1962-03-09 1962-03-09 Improvements to catalysts for the polymerization of propylene, to processes for their preparation and use, and to high molecular weight polypropylenes thus obtained
GB824962A GB944833A (en) 1962-03-30 1962-03-30 Improvements in the polymerisation of propylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB824962A GB944833A (en) 1962-03-30 1962-03-30 Improvements in the polymerisation of propylene

Publications (1)

Publication Number Publication Date
GB944833A true GB944833A (en) 1963-12-18

Family

ID=9848878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB824962A Expired GB944833A (en) 1962-03-09 1962-03-30 Improvements in the polymerisation of propylene

Country Status (2)

Country Link
GB (1) GB944833A (en)
NL (1) NL277825A (en)

Also Published As

Publication number Publication date
NL277825A (en)

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