GB962952A - Polymerisation of ethylene - Google Patents
Polymerisation of ethyleneInfo
- Publication number
- GB962952A GB962952A GB1088762A GB1088762A GB962952A GB 962952 A GB962952 A GB 962952A GB 1088762 A GB1088762 A GB 1088762A GB 1088762 A GB1088762 A GB 1088762A GB 962952 A GB962952 A GB 962952A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenyl
- hydropolysiloxanes
- vcl4
- ticl4
- hydrogen
- 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)
- Silicon Polymers (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Ethylene is polymerized with a catalyst comprising a mixture of (a) a transition metal compound of a Group IV, V or VI metal, (b) a silane derivative containing <FORM:0962952/C3/1> where R is phenyl or substituted phenyl and the two remaining valencies are satisfied by aromatic, cycloaliphatic or aliphatic groups or hydrogen, and (c) a siloxane containing at least one hydrogen-silicon bond. Specified catalyst components are:-(a) TiCl4, TiCl3, VCl4, VCl3, VOCl3 and a crystalline material containing Ti, Al and Cl, (b) phenyl-, diphenyl-, triphenyl-, diphenyl methyl- and phenyl dimethyl-silanes, and (c) hydropolysiloxanes such as methyl hydropolysiloxanes. Optionally a Lewis acid such as TiCl4, VCl4, AlCl3 or AlBr3 may be present. The polymerization may be in an inert hydrocarbon medium, e.g. a petrol fraction, and reaction may be terminated and catalysts removed with the aid of materials selected from alcohols, water, hydrocarbons, acids, alkalies, acetyl acetone and/or acetone. By regulating the ratio of (b) to (c) the melt viscosity of the polyethylene may be controlled, as is illustrated in the examples. Specifications 830,424, 877,050, 934,119 and 946,013 are referred to.ALSO:A catalyst for polymerizing ethylene comprises a mixture of (a) a transition metal compound of a Group IV, V or VI metal, (b) a silane derivative containing <FORM:0962952/B1-B2/1> where R is phenyl or substituted phenyl and the two remaining valencies are satisfied by aromatic, cycloaliphatic or aliphatic groups or hydrogen, and (c) a siloxane containing at least one hydrogen-silicon bond. Specified catalyst components are:-(a) TiCl4, TiCl3, VCl4, VCl3, VOCl3 and a crystalline material containing Ti, Al and Cl, (b) phenyl-, diphenyl-, triphenyl-, diphenyl methyl-, and phenyl dimethylsilanes, and (c) hydropolysiloxanes such as methyl-hydropolysiloxanes. Optionally a Lewis acid may be present, e.g. TiCl4, VCl4, AlCl3 or AlBr3. Specifications 830,424, 877,050, 934,119 and 946,013 are referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1088762A GB962952A (en) | 1962-03-21 | 1962-03-21 | Polymerisation of ethylene |
| DE1963J0023401 DE1263305B (en) | 1962-03-21 | 1963-03-21 | Process for the polymerization of ethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1088762A GB962952A (en) | 1962-03-21 | 1962-03-21 | Polymerisation of ethylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB962952A true GB962952A (en) | 1964-07-08 |
Family
ID=9976136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1088762A Expired GB962952A (en) | 1962-03-21 | 1962-03-21 | Polymerisation of ethylene |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1263305B (en) |
| GB (1) | GB962952A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB830424A (en) * | 1957-02-27 | 1960-03-16 | Ici Ltd | Polymerisation catalysts |
-
1962
- 1962-03-21 GB GB1088762A patent/GB962952A/en not_active Expired
-
1963
- 1963-03-21 DE DE1963J0023401 patent/DE1263305B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1263305B (en) | 1968-03-14 |
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