FR2077083A5 - Catalyst for olefine polymerisation - Google Patents
Catalyst for olefine polymerisationInfo
- Publication number
- FR2077083A5 FR2077083A5 FR7102789A FR7102789A FR2077083A5 FR 2077083 A5 FR2077083 A5 FR 2077083A5 FR 7102789 A FR7102789 A FR 7102789A FR 7102789 A FR7102789 A FR 7102789A FR 2077083 A5 FR2077083 A5 FR 2077083A5
- Authority
- FR
- France
- Prior art keywords
- polymerisation
- polymer
- stage
- catalyst
- zones
- 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
- 239000003054 catalyst Substances 0.000 title abstract 3
- 229920000642 polymer Polymers 0.000 abstract 6
- 239000011541 reaction mixture Substances 0.000 abstract 2
- 238000000071 blow moulding Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000002901 organomagnesium compounds Chemical class 0.000 abstract 1
- 150000002902 organometallic compounds Chemical class 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 150000003623 transition metal compounds Chemical class 0.000 abstract 1
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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
In the 2-stage (co)polymerisation of olefines, the catalyst is obtained by reducing a transition metal compound with an organomagnesium compound, and is activated by an organometallic compound. Polymerisation is in 2 stages in the same or separate polymerisation zones; the polymer in the reaction mixture at the end of the first stage is present also in the second stage reaction mixture. The conditions are such that the polymer removed from the second zone is a mixture of polymers formed in the first and second zones, with viscosity indexes of 0.2-4 or 3-20, in such amounts that the desired polymer product has a flow parameter of 1.4-2.5. The products have a wide mol. wt. distribution, giving improved preocessability. The necessity for extracting residual catalyst from the polymer is avoided. The reactors remain clean during prolonged operation. The polymers are particularly suitable for manufacturing bottles by blow-moulding.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB468470 | 1970-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2077083A5 true FR2077083A5 (en) | 1971-10-15 |
Family
ID=9781849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7102789A Expired FR2077083A5 (en) | 1970-01-30 | 1971-01-28 | Catalyst for olefine polymerisation |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU2477071A (en) |
| BE (1) | BE761965A (en) |
| DE (1) | DE2104024A1 (en) |
| FR (1) | FR2077083A5 (en) |
| NL (1) | NL7101106A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1548203A (en) * | 1975-08-05 | 1979-07-04 | Stamicarbon | Process and apparatus for the preparation of polyolefins with a widge molecular-weight distribution |
| JPS55164205A (en) * | 1979-06-07 | 1980-12-20 | Sumitomo Chem Co Ltd | Multistage polymerization of ethylene |
-
1971
- 1971-01-25 BE BE761965A patent/BE761965A/xx unknown
- 1971-01-28 FR FR7102789A patent/FR2077083A5/en not_active Expired
- 1971-01-28 DE DE19712104024 patent/DE2104024A1/en active Pending
- 1971-01-28 NL NL7101106A patent/NL7101106A/xx unknown
- 1971-01-28 AU AU24770/71A patent/AU2477071A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE761965A (en) | 1971-07-26 |
| AU2477071A (en) | 1972-08-03 |
| NL7101106A (en) | 1971-08-03 |
| DE2104024A1 (en) | 1971-08-05 |
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