GB935984A - Improvements in the production of solid propylene polymers - Google Patents

Improvements in the production of solid propylene polymers

Info

Publication number
GB935984A
GB935984A GB616262A GB616262A GB935984A GB 935984 A GB935984 A GB 935984A GB 616262 A GB616262 A GB 616262A GB 616262 A GB616262 A GB 616262A GB 935984 A GB935984 A GB 935984A
Authority
GB
United Kingdom
Prior art keywords
propylene
production
catalyst
propylene polymers
anhydrous
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
GB616262A
Inventor
Palmer B Stickney
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 NL277692D priority Critical patent/NL277692A/xx
Priority to US804148A priority patent/US3111511A/en
Application filed by WR Grace and Co filed Critical WR Grace and Co
Priority to GB616262A priority patent/GB935984A/en
Priority to FR889066A priority patent/FR1323009A/en
Publication of GB935984A publication Critical patent/GB935984A/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
    • C08F110/04—Monomers containing three or four carbon atoms
    • C08F110/06—Propene

Abstract

Propylene is polymerized in an inert liquid reaction medium using as catalyst an anhydrous chloride of samarium and an aluminium trialkyl, the alkyl groups containing 1 to 8 carbon atoms. The reaction medium is preferably a hydrocarbon, e.g. cyclohexane. Propylene partial pressures of 1-21 kg./cm2. or higher and reaction temperatures of 20 DEG -120 DEG C. are used and the polypropylene produced is mainly isotactic and has a melting point of about 160 DEG -165 DEG C. and a density of about 0,9 g./c.c. Generally 0,01 to 1 gram of catalyst is used per gram of propylene and mole ratios of anhydrous samarium chloride to aluminium trialkyl may be from 1:1 to 1:10.
GB616262A 1959-04-06 1962-02-16 Improvements in the production of solid propylene polymers Expired GB935984A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL277692D NL277692A (en) 1962-02-16
US804148A US3111511A (en) 1959-04-06 1959-04-06 Polymerization of ethylene with aluminum alkyl-rare earth halide catalysts
GB616262A GB935984A (en) 1962-02-16 1962-02-16 Improvements in the production of solid propylene polymers
FR889066A FR1323009A (en) 1962-02-16 1962-02-23 Improvements to processes for the catalytic polymerization of propylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB616262A GB935984A (en) 1962-02-16 1962-02-16 Improvements in the production of solid propylene polymers

Publications (1)

Publication Number Publication Date
GB935984A true GB935984A (en) 1963-09-04

Family

ID=9809553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB616262A Expired GB935984A (en) 1959-04-06 1962-02-16 Improvements in the production of solid propylene polymers

Country Status (2)

Country Link
GB (1) GB935984A (en)
NL (1) NL277692A (en)

Also Published As

Publication number Publication date
NL277692A (en)

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