GB841679A - Improvements in the processes for polymerising ethylene with the aid of organo-metallic catalysts - Google Patents
Improvements in the processes for polymerising ethylene with the aid of organo-metallic catalystsInfo
- Publication number
- GB841679A GB841679A GB35169/58A GB3516958A GB841679A GB 841679 A GB841679 A GB 841679A GB 35169/58 A GB35169/58 A GB 35169/58A GB 3516958 A GB3516958 A GB 3516958A GB 841679 A GB841679 A GB 841679A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stirring
- mixed
- components
- temperature
- heptane
- 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
-
- 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 with the aid of a Ziegler catalyst which is prepared by contacting the catalyst components with stirring at a temperature of from -10 DEG to -100 DEG C., the stirring being continued whilst the temperature rises to room temperature. The components may be mixed in any order preferably in solution in an inert hydrocarbon solvent, e.g. heptane, and may be mixed in the presence of an inert carrier such as pulverised polyethylene. The catalyst components may be titanium tetrachloride, vanadium tetrachloride, zirconium tetrachloride and aluminium tri-isobutyl, diethyl hydride or triethyl and the ratio of aluminium compound to transition metal compound may be from 0,3 to 3. In the examples ethylene is polymerized in solution in heptane at 5 atmospheres pressure to form granules of molecular weight below 100,000.ALSO:A Ziegler catalyst is prepared by contacting the catalyst components with stirring at a temperature of from -10 DEG to -100 DEG C., the stirring being continued whilst the temperature rises to room temperature. The components may be mixed in any order, preferably in solution in an inert hydrocarbon solvent, e.g. heptane, and may be mixed in the presence of an inert carrier such as pulverised polyethylene. The catalyst components may be titanium, vanadium or zirconium tetrachlorides and aluminium tri-isobutyl, triethyl or diethyl hydride and the ratio of aluminium compound to transition metal compound may be from 0.3 to 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1579557 | 1957-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB841679A true GB841679A (en) | 1960-07-20 |
Family
ID=11148229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35169/58A Expired GB841679A (en) | 1957-11-06 | 1958-11-03 | Improvements in the processes for polymerising ethylene with the aid of organo-metallic catalysts |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE572696A (en) |
| CH (1) | CH375902A (en) |
| DE (1) | DE1420589A1 (en) |
| FR (1) | FR1205100A (en) |
| GB (1) | GB841679A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE792607A (en) * | 1971-12-20 | 1973-06-12 | Shell Int Research | TITANCHLORIDE-CONTAINING COMPOSITIONS SUITABLE FOR POLYMERIZATION |
| FI96611C (en) * | 1993-09-10 | 1996-07-25 | Neste Oy | Heterogeneous polymerization catalyst and process for its preparation |
-
0
- BE BE572696D patent/BE572696A/xx unknown
-
1958
- 1958-11-03 GB GB35169/58A patent/GB841679A/en not_active Expired
- 1958-11-04 FR FR1205100D patent/FR1205100A/en not_active Expired
- 1958-11-04 DE DE19581420589 patent/DE1420589A1/en active Pending
- 1958-11-05 CH CH6583258A patent/CH375902A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1205100A (en) | 1960-01-29 |
| BE572696A (en) | 1900-01-01 |
| DE1420589A1 (en) | 1968-10-31 |
| CH375902A (en) | 1964-03-15 |
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