IT995811B - Procedimento per la regolazione della densita di un polietilene preparato ad alta pressione median te un catalizzatore di tipo ziegler - Google Patents
Procedimento per la regolazione della densita di un polietilene preparato ad alta pressione median te un catalizzatore di tipo zieglerInfo
- Publication number
- IT995811B IT995811B IT3004573A IT3004573A IT995811B IT 995811 B IT995811 B IT 995811B IT 3004573 A IT3004573 A IT 3004573A IT 3004573 A IT3004573 A IT 3004573A IT 995811 B IT995811 B IT 995811B
- Authority
- IT
- Italy
- Prior art keywords
- density
- procedure
- adjusting
- high pressure
- type catalyst
- 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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
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)
- Polymerisation Methods In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7236442A FR2202897B1 (fr) | 1972-10-13 | 1972-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT995811B true IT995811B (it) | 1975-11-20 |
Family
ID=9105635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT3004573A IT995811B (it) | 1972-10-13 | 1973-10-12 | Procedimento per la regolazione della densita di un polietilene preparato ad alta pressione median te un catalizzatore di tipo ziegler |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5834483B2 (fr) |
BE (1) | BE805756A (fr) |
BR (1) | BR7307997D0 (fr) |
CA (1) | CA1019899A (fr) |
DE (1) | DE2350739C2 (fr) |
FR (1) | FR2202897B1 (fr) |
GB (1) | GB1441115A (fr) |
IT (1) | IT995811B (fr) |
NL (1) | NL7314061A (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2342306A1 (fr) * | 1976-02-25 | 1977-09-23 | Charbonnages Ste Chimique | Procede ameliore de polymerisation ionique de l'ethylene sous haute pression |
FR2400040A2 (fr) | 1977-08-09 | 1979-03-09 | Charbonnages Ste Chimique | Procede controle de polymerisation ionique de l'ethylene sous haute pression |
FR2460306A1 (fr) * | 1979-07-05 | 1981-01-23 | Charbonnages Ste Chimique | Procede de production de polymeres de l'ethylene et appareil pour sa mise en oeuvre |
FR2495162B1 (fr) * | 1980-12-02 | 1985-09-27 | Charbonnages Ste Chimique | Catalyseur de polymerisation de l'ethylene comprenant un compose aromatique du silicium |
FR2496670B1 (fr) * | 1980-12-23 | 1985-12-06 | Charbonnages Ste Chimique | Activateur comprenant un compose fluore pour la polymerisation de l'ethylene |
FR2510586A1 (fr) * | 1981-07-30 | 1983-02-04 | Charbonnages Ste Chimique | Catalyseur homogene comprenant un metal de transition et du magnesium, son procede de preparation et son application a la polymerisation de l'ethylene |
US4396532A (en) | 1981-11-25 | 1983-08-02 | Societe Chimique Des Charbonnages S.A. | Activator comprising a dialkylaluminum monofluoride for the polymerization of ethylene |
FR2538396B1 (fr) * | 1982-12-24 | 1986-02-21 | Charbonnages Ste Chimique | Systeme catalytique utilisable dans un procede de polymerisation de l'ethylene |
US9340629B2 (en) * | 2012-12-13 | 2016-05-17 | Chevron Phillips Chemical Company Lp | Polyethylene production with multiple polymerization reactors |
US10029230B1 (en) | 2017-01-24 | 2018-07-24 | Chevron Phillips Chemical Company Lp | Flow in a slurry loop reactor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2021952A6 (fr) * | 1968-10-30 | 1970-07-24 | Ici Ltd |
-
1972
- 1972-10-13 FR FR7236442A patent/FR2202897B1/fr not_active Expired
-
1973
- 1973-10-08 BE BE2053123A patent/BE805756A/fr not_active IP Right Cessation
- 1973-10-10 DE DE19732350739 patent/DE2350739C2/de not_active Expired
- 1973-10-11 GB GB4756173A patent/GB1441115A/en not_active Expired
- 1973-10-12 NL NL7314061A patent/NL7314061A/xx active Search and Examination
- 1973-10-12 CA CA183,204A patent/CA1019899A/en not_active Expired
- 1973-10-12 IT IT3004573A patent/IT995811B/it active
- 1973-10-13 BR BR799773A patent/BR7307997D0/pt unknown
- 1973-10-13 JP JP48115268A patent/JPS5834483B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS4997087A (fr) | 1974-09-13 |
CA1019899A (en) | 1977-10-25 |
NL7314061A (fr) | 1974-04-16 |
JPS5834483B2 (ja) | 1983-07-27 |
BR7307997D0 (pt) | 1974-07-25 |
DE2350739C2 (de) | 1982-11-11 |
FR2202897B1 (fr) | 1976-05-21 |
FR2202897A1 (fr) | 1974-05-10 |
BE805756A (fr) | 1974-02-01 |
DE2350739A1 (de) | 1974-04-18 |
GB1441115A (en) | 1976-06-30 |
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