GB844769A - Polymerisation process - Google Patents

Polymerisation process

Info

Publication number
GB844769A
GB844769A GB3561756A GB3561756A GB844769A GB 844769 A GB844769 A GB 844769A GB 3561756 A GB3561756 A GB 3561756A GB 3561756 A GB3561756 A GB 3561756A GB 844769 A GB844769 A GB 844769A
Authority
GB
United Kingdom
Prior art keywords
polymerization
titanium
zirconium
vanadium
mixtures
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
GB3561756A
Inventor
Donald Alexander Fraser
Alaric Louis Jeffrey Raum
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers Co Ltd
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 NL210951D priority Critical patent/NL210951A/xx
Priority to DENDAT1072807D priority patent/DE1072807B/en
Priority to NL101255D priority patent/NL101255C/xx
Priority to GB33949/55A priority patent/GB801401A/en
Application filed by Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to US612948A priority patent/US3057841A/en
Priority to FR1161213D priority patent/FR1161213A/en
Priority to US636524A priority patent/US3057836A/en
Priority to FR1172352D priority patent/FR1172352A/en
Priority to DED24927A priority patent/DE1111393B/en
Publication of GB844769A publication Critical patent/GB844769A/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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

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

a -Olefins having at least three carbon atoms are polymerized with a catalyst system formed by mixing lithium borohydride with a titanium, zirconium or vanadium halide, e.g. a chloride. The olefin may be of formula R-CH=CH2, wherein R is an alkyl, cycloalkyl or aryl group, and specified compounds are propylene, butene, pentene, hexene, styrene and mixtures thereof. Chlorides disclosed are titanium tetra- and tri-chlorides, and vanadium and zirconium tetra-chlorides. Polymerization may be batchwise or continuous and is preferably in an inert medium such as pentane, hexane, cyclohexane, tetrahydro-naphthalene, decahydronaphthalene, benzene, xylene, o-dichlorobenzene, chlorinated naphthalene, petroleum ether or mixtures thereof. Oxygen and water are preferably excluded, e.g. by reaction in an atmosphere of argon. The catalyst components may be mixed in situ and may be preheated at a higher temperature than that used in the polymerization; preferred molar ratios are given. Subsequent to the polymerization the catalysts may be destroyed and the products purified by treatment with methanol and/or mineral acid, e.g. methanolic hydrochloric acid. The examples illustrate the addition of olefin during polymerization, and extraction of a product with diethyl ether. Highly crystalline polymers may be obtained. Comparison is made with a catalyst obtained from triethyl aluminium and titanium tetrachloride. Specification 827,464 is referred to.ALSO:Catalysts used in the polymerization of olefins (see Group IV(a)) are obtained by mixing lithium borohydride with a titanium, zirconium or vanadium halide, e.g. a chloride, such as titanium, vanadium or zirconium tetrachloride or titanium trichloride. Preferred molar ratios are given and the components may be mixed in situ and, if desired, may be preheated prior to polymerization. An inert medium is preferably present and specified are pentane, hexane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, benzene, xylene, o-dichlorobenzene, chlorinated naphthalene, petroleum ether and mixtures thereof. Subsequent to the polymerization the catalysts may be destroyed and the products purified by treatment with methanol and/or mineral acid, e.g. methanolic hydrochloric acid. Specification 827,464 is referred to.
GB3561756A 1955-10-18 1956-02-17 Polymerisation process Expired GB844769A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL210951D NL210951A (en) 1955-10-18
DENDAT1072807D DE1072807B (en) 1955-10-18 Process for the production of polyethylene
NL101255D NL101255C (en) 1955-10-18
GB33949/55A GB801401A (en) 1955-10-18 1955-11-26 Polymerisation process
US612948A US3057841A (en) 1955-10-18 1956-10-01 Polymerisation of ethylene with lithium borohydride and group ivb metal halides
FR1161213D FR1161213A (en) 1955-10-18 1956-10-16 Polyethylene production process
US636524A US3057836A (en) 1955-10-18 1957-01-28 Polymerisation process
FR1172352D FR1172352A (en) 1955-10-18 1957-02-15 Polymerization process
DED24927A DE1111393B (en) 1955-10-18 1957-02-15 Process for the polymerization of olefinically unsaturated hydrocarbons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2963155A GB830742A (en) 1955-10-18 1955-10-18 Polymerisation process

Publications (1)

Publication Number Publication Date
GB844769A true GB844769A (en) 1960-08-17

Family

ID=10294608

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2963155A Expired GB830742A (en) 1955-10-18 1955-10-18 Polymerisation process
GB3561756A Expired GB844769A (en) 1955-10-18 1956-02-17 Polymerisation process

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2963155A Expired GB830742A (en) 1955-10-18 1955-10-18 Polymerisation process

Country Status (1)

Country Link
GB (2) GB830742A (en)

Also Published As

Publication number Publication date
GB830742A (en) 1960-03-16

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