GB830742A - Polymerisation process - Google Patents
Polymerisation processInfo
- Publication number
- GB830742A GB830742A GB2963155A GB2963155A GB830742A GB 830742 A GB830742 A GB 830742A GB 2963155 A GB2963155 A GB 2963155A GB 2963155 A GB2963155 A GB 2963155A GB 830742 A GB830742 A GB 830742A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymerization
- catalyst
- hydrochloric acid
- catalysts
- chloride
- 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
Catalysts for the polymerization of ethylene (see Group IV (a)) are formed by mixing lithium borohydride with a titanium, zirconium or vanadium halide, e.g. a chloride such as the tri- or tetra-chloride, and preferred molar ratios are specified. The catalyst formation is preferably effected in an inert medium such as pentane, hexane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, paraffins, benzene, xylene, dichlorobenzene, chlorinated naphthalene, petroleum ether or mixtures thereof. After polymerization the catalysts may be destroyed with ethanol, hydrochloric acid or ethanolic hydrochloric acid. Specification 827,464 also is referred to.ALSO:Ethylene is polymerized with a catalyst formed by mixing lithium borohydride with a titanium, zirconium or vanadium halide, e.g. a chloride such as the tri- or tetrachloride, and preferred molar ratios of the catalyst components are specified. The catalyst formation and the polymerization are preferably effected in the absence of oxygen, carbon dioxide and water and desirably in an inert medium such as pentane, hexane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, the higher paraffins, benzene, xylene, dichlorobenzene, chlorinated naphthalene, sodium dried petroleum ether or mixtures thereof. The polymerization may be batchwise or continuous and optionally the catalyst may be formed in situ. In examples ethylene is added intermittently, and catalysts are destroyed and the products purified with ethanol, hydrochloric acid or ethanolic hydrochloric acid. The products are linear and may be formed into films, fibres or moulded articles. Specification 827,464 also is referred to.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL101255D NL101255C (en) | 1955-10-18 | ||
NL210951D NL210951A (en) | 1955-10-18 | ||
DENDAT1072807D DE1072807B (en) | 1955-10-18 | Process for the production of polyethylene | |
GB2963155A GB830742A (en) | 1955-10-18 | 1955-10-18 | Polymerisation process |
GB33949/55A GB801401A (en) | 1955-10-18 | 1955-11-26 | Polymerisation process |
GB3561756A GB844769A (en) | 1955-10-18 | 1956-02-17 | Polymerisation process |
US612948A US3057841A (en) | 1955-10-18 | 1956-10-01 | Polymerisation of ethylene with lithium borohydride and group ivb metal halides |
FR1161213D FR1161213A (en) | 1955-10-18 | 1956-10-16 | Polyethylene production process |
US636524A US3057836A (en) | 1955-10-18 | 1957-01-28 | Polymerisation process |
FR1172352D FR1172352A (en) | 1955-10-18 | 1957-02-15 | Polymerization process |
DED24927A DE1111393B (en) | 1955-10-18 | 1957-02-15 | Process for the polymerization of olefinically unsaturated hydrocarbons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2963155A GB830742A (en) | 1955-10-18 | 1955-10-18 | Polymerisation process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB830742A true GB830742A (en) | 1960-03-16 |
Family
ID=10294608
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2963155A Expired GB830742A (en) | 1955-10-18 | 1955-10-18 | Polymerisation process |
GB3561756A Expired GB844769A (en) | 1955-10-18 | 1956-02-17 | Polymerisation process |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3561756A Expired GB844769A (en) | 1955-10-18 | 1956-02-17 | Polymerisation process |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB830742A (en) |
-
1955
- 1955-10-18 GB GB2963155A patent/GB830742A/en not_active Expired
-
1956
- 1956-02-17 GB GB3561756A patent/GB844769A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB844769A (en) | 1960-08-17 |
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