GB902845A - Improvements in and relating to the catalytic polymerisation of ethylene - Google Patents
Improvements in and relating to the catalytic polymerisation of ethyleneInfo
- Publication number
- GB902845A GB902845A GB1954760A GB1954760A GB902845A GB 902845 A GB902845 A GB 902845A GB 1954760 A GB1954760 A GB 1954760A GB 1954760 A GB1954760 A GB 1954760A GB 902845 A GB902845 A GB 902845A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iso
- polymerization
- aluminium
- propyl
- 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
- 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 a preformed Ziegler catalyst by adding an organo-metallic compound of a Group II metal to the polymerization zone and controlling the pressure conditions to form a polyethylene of required average molecular weight. Specified Ziegler catalyst components are titanium tetrachloride, tetanium trichloride, aluminium diethyl chloride, aluminium triethyl, and aluminium diethyl ethoxide while Group II compounds specified are zinc diethyl (preferred), di-n-propyl, di-iso-propyl, di-iso-butyl, di-iso-amyl, diphenyl and ditolyl. While the polymerization may take place batchwise, continuous polymerization is preferred. Solvents such as isooctane and hydrocarbon distillates may be used. The product may be purified by the addition of an alkanol containing 3 to 5 carbon atoms in the molecule, e.g. a butanol, and then washing with dilute aqueous hydrochloric acid. Specifications 799,392, 799,823, 801,031, 851,112 and 867,566 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1954760A GB902845A (en) | 1960-06-02 | 1960-06-02 | Improvements in and relating to the catalytic polymerisation of ethylene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1954760A GB902845A (en) | 1960-06-02 | 1960-06-02 | Improvements in and relating to the catalytic polymerisation of ethylene |
Publications (1)
Publication Number | Publication Date |
---|---|
GB902845A true GB902845A (en) | 1962-08-09 |
Family
ID=10131205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1954760A Expired GB902845A (en) | 1960-06-02 | 1960-06-02 | Improvements in and relating to the catalytic polymerisation of ethylene |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB902845A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3544533A (en) * | 1967-08-03 | 1970-12-01 | Goodrich Co B F | Process and modified catalyst for the polymerization of alpha-olefins |
US4308369A (en) * | 1979-09-28 | 1981-12-29 | The Dow Chemical Company | High efficiency catalyst for polymerizing olefins |
EP0053632A1 (en) * | 1980-12-05 | 1982-06-16 | The Dow Chemical Company | Catalyst composition and polymerization of alpha-olefins employing such a catalyst composition |
-
1960
- 1960-06-02 GB GB1954760A patent/GB902845A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3544533A (en) * | 1967-08-03 | 1970-12-01 | Goodrich Co B F | Process and modified catalyst for the polymerization of alpha-olefins |
US4308369A (en) * | 1979-09-28 | 1981-12-29 | The Dow Chemical Company | High efficiency catalyst for polymerizing olefins |
EP0053632A1 (en) * | 1980-12-05 | 1982-06-16 | The Dow Chemical Company | Catalyst composition and polymerization of alpha-olefins employing such a catalyst composition |
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