GB819867A - Process for the production of polyethylenes and catalysts therefor - Google Patents
Process for the production of polyethylenes and catalysts thereforInfo
- Publication number
- GB819867A GB819867A GB2350155A GB2350155A GB819867A GB 819867 A GB819867 A GB 819867A GB 2350155 A GB2350155 A GB 2350155A GB 2350155 A GB2350155 A GB 2350155A GB 819867 A GB819867 A GB 819867A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- zinc
- magnesium
- organic compound
- ethylene
- 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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
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 catalyst for the polymerization of pure ethylene is formed by mixing an organic compound of aluminium, magnesium or zinc with a compound of a Group IVa, Va or VI metal in a molecular ratio between the limits of 0.3 to 1 and 8 to 1. The catalysts are formed out of contact with the atmosphere and may be those disclosed in Specifications 799,392, 799,823 and 801,031. The pure ethylene used may be obtained by previously washing contaminated ethylene with an organic compound of aluminium, magnesium or zinc. The Specification discloses particular molecular ratio ranges and provides drawings illustrating their maximum effect on molecular weight, for various particular catalyst combinations.ALSO:Polyethylene of a predetermined degree of polymerization is produced by polymerization of pure ethylene with a catalyst formed by mixing an organic compound of aluminium, magnesium or zinc with a compound of a Group IVa, Va or VIa metal in a molecular ratio between the limits of 0.3 to 1 and 8 to 1. The catalysts are formed out of contact with the atmosphere and may be those disclosed in and may be used in the processes described in Specifications 799,392, 799,823 and 801,031. The pure ethylene used may be obtained by previously washing contaminated ethylene with an organic compound of aluminium, zinc or magnesium. In the examples, the diesel oil medium is also purified by distilling over sodium. The Specification discloses particular molecular ratio ranges and provides drawings illustrating their maximum effect on molecular weight, for various particular catalyst combinations.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEZ4375A DE1178603B (en) | 1954-08-16 | 1954-08-16 | Process for the production of polyethylene with a certain degree of polymerisation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB819867A true GB819867A (en) | 1956-09-09 |
Family
ID=7619110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2350155A Expired GB819867A (en) | 1954-08-16 | 1955-08-15 | Process for the production of polyethylenes and catalysts therefor |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE540459A (en) |
CH (1) | CH404200A (en) |
DE (1) | DE1178603B (en) |
FR (1) | FR1135821A (en) |
GB (1) | GB819867A (en) |
LU (1) | LU33749A1 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2962491A (en) * | 1955-12-21 | 1960-11-29 | Exxon Research Engineering Co | Olefin polymerization |
US2964510A (en) * | 1956-04-09 | 1960-12-13 | Exxon Research Engineering Co | Butene-1 polymerization |
DE1083053B (en) * | 1956-06-15 | 1960-06-09 | Hoechst Ag | Process for the production of unbranched polyethylenes |
BE559674A (en) * | 1956-08-08 | |||
US3021319A (en) * | 1956-11-30 | 1962-02-13 | Hercules Powder Co Ltd | Polymerization of ethylene with alkyl titanium halide catalysts |
BE562871A (en) * | 1956-12-04 | |||
US3063798A (en) * | 1956-12-20 | 1962-11-13 | Exxon Research Engineering Co | Alpha olefin polymerization catalysts |
BE564245A (en) * | 1957-02-15 | |||
NL103546C (en) * | 1957-02-22 | |||
NL225308A (en) * | 1957-02-28 | |||
US2914519A (en) * | 1957-03-19 | 1959-11-24 | Hercules Powder Co Ltd | Polymerization of ethylene with a catalyst of alkylaluminum and a v-a metal salt |
US2914520A (en) * | 1957-03-19 | 1959-11-24 | Hercules Powder Co Ltd | Polymerization of ethylene with a catalyst of alkyl aluminum and a group iii-a metalsalt |
US3210334A (en) * | 1957-03-25 | 1965-10-05 | Union Carbide Corp | Catalytic polymerization of ethylene |
NL127635C (en) * | 1958-03-21 | |||
US3012996A (en) * | 1958-04-02 | 1961-12-12 | Du Pont | Process for polymerizing alpha-olefins to high polymers |
NL228537A (en) * | 1958-06-07 | |||
IT649773A (en) * | 1960-04-27 | |||
DE2234231A1 (en) * | 1972-07-12 | 1974-01-24 | Veba Chemie Ag | PROCESS FOR THE POLYMERIZATION OF AETHYLENE, IF NECESSARY IN A MIXTURE WITH 1-OLEFINS |
DE2724096C2 (en) * | 1977-05-27 | 1982-10-21 | Svetlana Aleksandrovna Šibalovskaja | Process for the production of super high molecular weight polyethylene |
-
0
- LU LU33749D patent/LU33749A1/xx unknown
- BE BE540459D patent/BE540459A/xx unknown
-
1954
- 1954-08-16 DE DEZ4375A patent/DE1178603B/en active Pending
-
1955
- 1955-08-03 CH CH2285655A patent/CH404200A/en unknown
- 1955-08-10 FR FR1135821D patent/FR1135821A/en not_active Expired
- 1955-08-15 GB GB2350155A patent/GB819867A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH404200A (en) | 1965-12-15 |
DE1178603B (en) | 1964-09-24 |
FR1135821A (en) | 1957-05-03 |
LU33749A1 (en) | |
BE540459A (en) | 1956-02-09 |
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