GB975969A - Polymerisation of olefines and catalyst therefor - Google Patents
Polymerisation of olefines and catalyst thereforInfo
- Publication number
- GB975969A GB975969A GB1088662A GB1088662A GB975969A GB 975969 A GB975969 A GB 975969A GB 1088662 A GB1088662 A GB 1088662A GB 1088662 A GB1088662 A GB 1088662A GB 975969 A GB975969 A GB 975969A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymerized
- catalyst
- transition metal
- tetrachloride
- vanadium tetrachloride
- 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
Ethylene is polymerized using as catalyst a mixture of (a) the reaction product of vanadium tetrachloride with aluminium, (b) a compound containing at least one hydrogen-silicon bond and (c) a higher halide of a transition metal from Group IV to VI. Component (a) is preferably formed by reducing vanadium tetrachloride with aluminium powder in a hydrocarbon solvent and the product is preferably ball-milled in the dry state. Suitable silicon compounds include silicon hydrides, organosilanes and siloxanes, the preferred compounds being hydropolysiloxanes such as methyl hydrogen silicone oil of formula <FORM:0975969/C3/1> Preferred (c) components are titanium tetrachloride, vanadium tetrachloride and mixtures of the two; the term "higher halide" meaning a halide of a transition metal in which the transition metal has the highest valency which is shown by that metal when in binary combination with that halogen. The catalyst components are preferably mixed together in the polymerization medium which is either an inert diluent or the liquefied monomer which is to be polymerized. In the examples ethylene is polymerized with a catalyst comprising titanium tetrachloride, the ball-milled reaction product of vanadium tetrachloride and aluminium powder and either methyl hydrogen silicone oil or diphenyl silane, the polymerization medium being a high-boiling petrol fraction. Specifications 830,424, 877,050, 934,119 and 946,013 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1088662A GB975969A (en) | 1962-03-21 | 1962-03-21 | Polymerisation of olefines and catalyst therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1088662A GB975969A (en) | 1962-03-21 | 1962-03-21 | Polymerisation of olefines and catalyst therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB975969A true GB975969A (en) | 1964-11-25 |
Family
ID=9976123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1088662A Expired GB975969A (en) | 1962-03-21 | 1962-03-21 | Polymerisation of olefines and catalyst therefor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB975969A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2029539A1 (en) * | 1970-06-15 | 1971-12-23 | Wacker Chemie Gmbh | Process for purifying polyolefins |
-
1962
- 1962-03-21 GB GB1088662A patent/GB975969A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2029539A1 (en) * | 1970-06-15 | 1971-12-23 | Wacker Chemie Gmbh | Process for purifying polyolefins |
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