IN161795B - - Google Patents
Info
- Publication number
- IN161795B IN161795B IN1558/CAL/83A IN1558CA1983A IN161795B IN 161795 B IN161795 B IN 161795B IN 1558CA1983 A IN1558CA1983 A IN 1558CA1983A IN 161795 B IN161795 B IN 161795B
- Authority
- IN
- India
- Prior art keywords
- carbon atoms
- pressure
- ethylene
- bars
- transition metal
- Prior art date
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
- C08F10/02—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
-
- 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
- C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
- C08F2410/01—Additive used together with the catalyst, excluding compounds containing Al or B
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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Luminescent Compositions (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
1. A continuous process for the manufacture of ethylene homopolymers or copolymers of ethylene with at least one alpha-olefin having from 3 to 8 carbon atoms, successively comprising : a) a first step for (co)polymerizing ethylene at a temperature between 180 and 320 degrees C, under a pressure between 300 and 2 500 bars, in the presence of a catalytic system comprising on the one hand at least one halogenated compound of a transition metal of groups IVa to VIa of the Periodic System and on the other hand at least one activator selected from hydrides and organo-metallic compounds of metals of groups I to III of the Periodic System, the molar ratio of the activator to the transition metal compound being between 1 and 10, b) a second-step for separating the (co)polymer formed from the unreacted monomer(s), under a pressure of between 100 and 500 bars, c) a third step for recycling the unreacted monomer(s), and d) a fourth step for recompression up to the (co)polymerisation pressure, characterized by introducing into the reaction mixture, at the end of the first step, at least one compound selected from monoketones having from 3 to 10 carbons atoms, diketones having from 4 to 11 carbon atoms, monoalcohols having from 1 to 14 carbons atoms, polyalcohols having from 2 to 10 carbon atoms, and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN673/CAL/87A IN162130B (en) | 1982-12-24 | 1987-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8221736A FR2538398B1 (en) | 1982-12-24 | 1982-12-24 | IMPROVED CONTINUOUS PROCESS FOR THE MANUFACTURE OF ETHYLENE HOMOPOLYMERS OR COPOLYMERS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN161795B true IN161795B (en) | 1988-02-06 |
Family
ID=9280489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1558/CAL/83A IN161795B (en) | 1982-12-24 | 1983-12-21 |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0116248B1 (en) |
| JP (1) | JPS59172505A (en) |
| AT (1) | ATE18414T1 (en) |
| AU (1) | AU566446B2 (en) |
| BR (1) | BR8307070A (en) |
| CA (1) | CA1226098A (en) |
| CS (1) | CS241146B2 (en) |
| DE (1) | DE3362475D1 (en) |
| ES (1) | ES528384A0 (en) |
| FI (1) | FI76357C (en) |
| FR (1) | FR2538398B1 (en) |
| IN (1) | IN161795B (en) |
| NO (1) | NO160715C (en) |
| PT (1) | PT77891B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63198779U (en) * | 1987-06-12 | 1988-12-21 | ||
| USH860H (en) | 1989-01-26 | 1990-12-04 | Shell Oil Company | Method for polymerizing alpha olefins |
| JPH02132515U (en) * | 1989-04-11 | 1990-11-02 | ||
| JPH0572533U (en) * | 1992-03-13 | 1993-10-05 | マツダ株式会社 | Vehicle door opening / closing control device |
| WO1995007943A1 (en) * | 1993-09-16 | 1995-03-23 | Shell Oil Company | Polymer production |
| FI991015A0 (en) | 1999-05-04 | 1999-05-04 | Borealis As | Process for the preparation of alpha-olefin polymers |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB884116A (en) * | 1960-09-30 | 1961-12-06 | Shell Res Ltd | Improvements in or relating to the manufacture of polyolefins |
| FR1358111A (en) * | 1962-05-30 | 1964-04-10 | Montedison Spa | Process for the stereospecific polymerization of alpha-olefins and products obtained by this process |
| DE2001183C3 (en) * | 1970-01-13 | 1980-01-31 | Chemische Werke Huels Ag, 4370 Marl | Process for interrupting and restarting olefin polymerizations |
| JPS511274B2 (en) * | 1972-04-12 | 1976-01-16 | ||
| JPS523062B2 (en) * | 1973-07-16 | 1977-01-26 | ||
| DE2361508C3 (en) * | 1973-12-11 | 1979-03-29 | Ruhrchemie Ag, 4200 Oberhausen | Process for the production of polyethylene with a molecular weight above 500,000 |
| FR2302305A1 (en) * | 1975-02-28 | 1976-09-24 | Charbonnages Ste Chimique | PERFECTED PROCESS OF POLYMERIZATION AND COPOLYM |
| FR2385745A1 (en) * | 1977-03-31 | 1978-10-27 | Charbonnages Ste Chimique | ETHYLENE POLYMERIZATION PROCESS, UNDER HIGH PRESSURE, WITH RECYCLING |
-
1982
- 1982-12-24 FR FR8221736A patent/FR2538398B1/en not_active Expired
-
1983
- 1983-12-20 EP EP83402478A patent/EP0116248B1/en not_active Expired
- 1983-12-20 DE DE8383402478T patent/DE3362475D1/en not_active Expired
- 1983-12-20 AT AT83402478T patent/ATE18414T1/en not_active IP Right Cessation
- 1983-12-21 IN IN1558/CAL/83A patent/IN161795B/en unknown
- 1983-12-22 FI FI834754A patent/FI76357C/en not_active IP Right Cessation
- 1983-12-22 CA CA000444090A patent/CA1226098A/en not_active Expired
- 1983-12-22 BR BR8307070A patent/BR8307070A/en not_active IP Right Cessation
- 1983-12-23 AU AU22898/83A patent/AU566446B2/en not_active Ceased
- 1983-12-23 JP JP58252261A patent/JPS59172505A/en active Granted
- 1983-12-23 NO NO834794A patent/NO160715C/en unknown
- 1983-12-23 PT PT77891A patent/PT77891B/en unknown
- 1983-12-23 ES ES528384A patent/ES528384A0/en active Granted
- 1983-12-23 CS CS839880A patent/CS241146B2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU566446B2 (en) | 1987-10-22 |
| JPS59172505A (en) | 1984-09-29 |
| FI834754A (en) | 1984-06-25 |
| FR2538398B1 (en) | 1986-01-24 |
| DE3362475D1 (en) | 1986-04-10 |
| CS241146B2 (en) | 1986-03-13 |
| JPS6317281B2 (en) | 1988-04-13 |
| ATE18414T1 (en) | 1986-03-15 |
| PT77891B (en) | 1986-04-11 |
| NO160715C (en) | 1989-05-24 |
| PT77891A (en) | 1984-01-01 |
| FI834754A0 (en) | 1983-12-22 |
| FI76357B (en) | 1988-06-30 |
| ES8407324A1 (en) | 1984-09-16 |
| NO160715B (en) | 1989-02-13 |
| NO834794L (en) | 1984-06-25 |
| CS988083A2 (en) | 1985-07-16 |
| CA1226098A (en) | 1987-08-25 |
| FR2538398A1 (en) | 1984-06-29 |
| FI76357C (en) | 1988-10-10 |
| EP0116248B1 (en) | 1986-03-05 |
| BR8307070A (en) | 1984-07-31 |
| EP0116248A1 (en) | 1984-08-22 |
| AU2289883A (en) | 1984-06-28 |
| ES528384A0 (en) | 1984-09-16 |
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