GB854385A - The polymerisation of ethylene - Google Patents
The polymerisation of ethyleneInfo
- Publication number
- GB854385A GB854385A GB3257157A GB3257157A GB854385A GB 854385 A GB854385 A GB 854385A GB 3257157 A GB3257157 A GB 3257157A GB 3257157 A GB3257157 A GB 3257157A GB 854385 A GB854385 A GB 854385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- alloy
- copper
- weight
- water
- 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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Ethylene is polymerized using as a catalyst a mixture of an alkyl or aralkyl chloride or bromide with an alloy containing at least 20% by weight of aluminium and at least 20% by weight of copper. The polymerization is preferably performed at elevated temperature, e.g. 50-100 DEG C. and pressure, e.g. above 100 p.s.i.g. in the absence of air or moisture. The catalysts, e.g. an alloy of 50% copper 45% aluminium and 5% zinc with ethyl bromide, are preferably prepared by grinding the alloy with a solution of the halide in an inert solvent at a slightly elevated temperature. p Preferably aliphatic hydrocarbons e.g. petroleum ether are used as solvents and an amount of halogen approximately chemically equivalent to the amount of aluminium is economical. The solid products are purified by decomposing the catalyst with water, steam, or alcohol, and the polymer is washed with an acid solution, e.g. ethanolic hydrochloric acid, water or a hydroxyl containing compound, and dried.ALSO:Catalysts comprising mixtures of an alkyl or aralkyl chloride or bromide with an alloy containing at least 20% by weight of aluminium and at least 20% by weight of copper are used in the polymerization of ethylene. An alloy of 50% copper, 45% aluminium and 5% zinc with ethyl bromide is specified, and the mixtures are prepared by grinding the alloy with a solution of the halide in an inert solvent at a slightly elevated temperature. Preferably aliphatic hydrocarbons, e.g. petroleum ether, are used as solvents, and an amount of halogen approximately chemically equivalent to the amount of aluminium is economical. The solid polymerization products are purified by decomposing the catalyst with water, steam or alcohol and the polymer is washed with an acid solution, e.g. ethanolic hydrochloric acid, water or a hydronyl-containing compound and dried.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3257157A GB854385A (en) | 1957-10-18 | 1957-10-18 | The polymerisation of ethylene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3257157A GB854385A (en) | 1957-10-18 | 1957-10-18 | The polymerisation of ethylene |
Publications (1)
Publication Number | Publication Date |
---|---|
GB854385A true GB854385A (en) | 1960-11-16 |
Family
ID=10340706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3257157A Expired GB854385A (en) | 1957-10-18 | 1957-10-18 | The polymerisation of ethylene |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB854385A (en) |
-
1957
- 1957-10-18 GB GB3257157A patent/GB854385A/en not_active Expired
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