GB860641A - Improvements in or relating to the polymerization of ethylenically unsaturated hydrocarbons and catalysts therefor - Google Patents
Improvements in or relating to the polymerization of ethylenically unsaturated hydrocarbons and catalysts thereforInfo
- Publication number
- GB860641A GB860641A GB11813/57A GB1181357A GB860641A GB 860641 A GB860641 A GB 860641A GB 11813/57 A GB11813/57 A GB 11813/57A GB 1181357 A GB1181357 A GB 1181357A GB 860641 A GB860641 A GB 860641A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ticl4
- metal
- group
- alkyl
- iii
- 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
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
Olefines are polymerized using a catalyst composition (see Group III) formed by mixing, in the presence of a liquid diluent, a Group IVa metal halide with a combination of reducing agents comprising (1) a Group IIIb, IVb or Vb alkyl metal halide containing at least one alkyl and two halide groups and (2) a Group Ia, IIa or IIIb metal alkyl or aryl. The term "halide" is defined as including oxychlorides. Preferred liquid diluents are those which can serve as polymerization media and as solvents for the catalyst components, e.g. an inert hydrocarbon or liquid monomer. Polymerization may be effected batchwise or continuously preferably in a diluent such as cyclohexane, decane, xylene or toluene at temperatures from below O DEG to above 300 DEG C. and 1 to 200 atmospheres using 0.001 to 10% of the catalyst based on the weight of the monomer. In examples, ethylene or propylene is polymerized using catalyst compositions obtained by mixing the following ingredients in decahydronaphthalene: (a) TiCl4, C2H5AlB62, Mg(C5H5)2; (b) TiCl4, C2H5AlBr2, LiAl(C7H15)4; (c) TiCl4, (C4H9)2SnCl2, Mg(C6H5)2; and (d) TiCl4; (C4H9)2SbCl3, Mg(C6H5)2.ALSO:Catalyst compositions suitable for olefin polymerization reactions are formed by mixing the following three components in a liquid diluent: (i) a halide of titanium, zirconium or hafnium (including oxychlorides); (ii) a metal alkyl halide containing at least two halogen atoms and one alkyl group wherein the metal is aluminium, gallium, indium, thallium, germanium, tin, lead, antimony or bismuth; and (iii) a metal alkyl or aryl wherein the metal is one or more of the metals of Group Ia, IIa, and IIIb. The diluent may be an inert hydrocarbon or a liquid monomer. Components (ii) and (iii) are reducing agents for component (i) and should be added in sufficient amount to reduce the metal thereof to a valency state below three. The molar ratio of components (ii) plus (iii): (i) is preferably between 0.3 and 10 : 1 and the molar ratio of component (iii) : (ii) preferably exceeds 1. In examples the following catalyst compositions are used: (a) TiCl4, C2H5AlBr2, Mg(C6H5)2; (b) TiCl4, C2H5AlBr2, LiAl(C7H15)4; (c) TiCl4, (C4H9)2SnCl2, Mg(C6H5)2; and (d) TiCl4, (C4H9)2SbCl3, Mg(C6H5)2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US860641XA | 1956-04-18 | 1956-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB860641A true GB860641A (en) | 1961-02-08 |
Family
ID=22196016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11813/57A Expired GB860641A (en) | 1956-04-18 | 1957-04-10 | Improvements in or relating to the polymerization of ethylenically unsaturated hydrocarbons and catalysts therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB860641A (en) |
-
1957
- 1957-04-10 GB GB11813/57A patent/GB860641A/en not_active Expired
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