GB831145A - Improvements in the production of solid polyethylene - Google Patents
Improvements in the production of solid polyethyleneInfo
- Publication number
- GB831145A GB831145A GB12807/56A GB1280756A GB831145A GB 831145 A GB831145 A GB 831145A GB 12807/56 A GB12807/56 A GB 12807/56A GB 1280756 A GB1280756 A GB 1280756A GB 831145 A GB831145 A GB 831145A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- halogen
- chloride
- 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
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A catalyst used in the polymerization of ethylene, is formed by mixing a metal with a compound of formula MeXm or MeOnXp, wherein Me is a metal of Group Ib, IIb, IVa, Va, VIa, VIIa or VIII, X is halogen, -CN, -SCN, -OR, -SR or -OCOR (R being a saturated organic radical) and m and n + p are the valencies of the metal. Metals specified are Li, Na, K, Mg, Ca, Al, Zn, Cd, Sn, Pb, Ti, V, Cr, W, Fe, Cu and mixtures as well as amalgams thereof, and the other catalyst component may be e.g. a compound of Fe, Co (but not cobaltous halide), Ni, Cr, Mo, W, V, Cu, Ag or Hg, but is preferably vanadium tetrachloride or oxytrichloride, chromyl chloride, chromium trichloride, iron trichloride or cupric chloride. If desired the metal may be activated before use with hydrogen or a halogen (film of metal halide obtained). Hydrocarbon diluents may be present. The use of organic halides is specifically excluded.ALSO:Ethylene is polymerized, in the absence of organic halides, using a mixture of a metal with a compound of formula MeXm or MeOnXp, wherein Me is a metal of Group IB, IIB, VA, VIA, VIIA or VIII, X is halogen, -CN, -SCN, -OR, -SR or -OCOR (R being a saturated organic radical) and m and n + p are the valencies of the metal. Metal components specified are Li, Na, K, Mg, Ca, Al, Zn, Cd, Sn, Pb, Ti, V, Cr, W, Fe, Cu and mixtures thereof, and the other catalyst component may be vanadium tetrachloride or oxytrichloride, chromyl chloride, chromium chloride, iron trichloride or cupric chloride. The use of cobaltous halide is excluded. If desired the metal may be activated before use with hydrogen or with a halogen (film of metal halide obtained). The polymerization may be continuous or with addition of ethylene during the reaction, and may be in bulk or in a hydrocarbon liquid such as xylene, hexane or cyclohexane. Purification may be effected by distillation, if desired with the use of steam or alcohol vapour, followed by extraction with alcohols, methanolic HCl, or aqueous acids or bases. By varying the catalyst components, products ranging from wax-like to crystalline materials may be obtained.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE831145X | 1955-04-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB831145A true GB831145A (en) | 1960-03-23 |
Family
ID=6752478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12807/56A Expired GB831145A (en) | 1955-04-27 | 1956-04-26 | Improvements in the production of solid polyethylene |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR1147868A (en) |
GB (1) | GB831145A (en) |
IT (1) | IT553271A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL98046C (en) * | 1957-03-23 | |||
US2928818A (en) * | 1957-07-01 | 1960-03-15 | Eastman Kodak Co | Process of polymerizing ethylene with aluminum-titanium halide catalyst |
BE574798A (en) * | 1958-01-25 | |||
US2962487A (en) * | 1958-03-31 | 1960-11-29 | Eastman Kodak Co | Three-component aluminum-titanium tetrahalide catalyst for olefin polymerization therewith |
FR1171437A (en) * | 1958-01-27 | 1959-01-26 | Eastman Kodak Co | Process for manufacturing polyolefins, products obtained and catalysts for the implementation of this process |
NL106937C (en) * | 1958-07-18 | |||
NL105120C (en) * | 1958-08-02 | |||
US3035039A (en) * | 1958-12-12 | 1962-05-15 | Grace W R & Co | Polyethylene process and catalyst |
US3096316A (en) * | 1959-07-07 | 1963-07-02 | Grace W R & Co | Polymerization of propylene with a catalyst prepared by grinding al and ticl3 in the presence of h2 |
US3214452A (en) * | 1962-04-23 | 1965-10-26 | Ethyl Corp | Organometallic compounds |
-
0
- IT IT553271D patent/IT553271A/it unknown
-
1956
- 1956-04-23 FR FR1147868D patent/FR1147868A/en not_active Expired
- 1956-04-26 GB GB12807/56A patent/GB831145A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1147868A (en) | 1957-12-02 |
IT553271A (en) |
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