IT971883B - Processo di polimerizzazione e catalizzatore per lo stess - Google Patents
Processo di polimerizzazione e catalizzatore per lo stessInfo
- Publication number
- IT971883B IT971883B IT32931/72A IT3293172A IT971883B IT 971883 B IT971883 B IT 971883B IT 32931/72 A IT32931/72 A IT 32931/72A IT 3293172 A IT3293172 A IT 3293172A IT 971883 B IT971883 B IT 971883B
- Authority
- IT
- Italy
- Prior art keywords
- polymerization
- catalyst
- same
- 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
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)
- Catalysts (AREA)
- Graft Or Block Polymers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5901371A GB1390355A (en) | 1971-12-20 | 1971-12-20 | Process for the preparation of titanium trichloride starting at low temperature and its use in the polymerization of ethylenically unsaturated hydrocarbons |
Publications (1)
Publication Number | Publication Date |
---|---|
IT971883B true IT971883B (it) | 1974-05-10 |
Family
ID=10482891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT32931/72A IT971883B (it) | 1971-12-20 | 1972-12-14 | Processo di polimerizzazione e catalizzatore per lo stess |
Country Status (12)
Country | Link |
---|---|
US (1) | US3857795A (it) |
JP (1) | JPS5535333B2 (it) |
AU (1) | AU464811B2 (it) |
BE (1) | BE792607A (it) |
BR (1) | BR7208908D0 (it) |
CA (1) | CA1000028A (it) |
DE (1) | DE2261967A1 (it) |
FR (1) | FR2164650B1 (it) |
GB (1) | GB1390355A (it) |
IT (1) | IT971883B (it) |
NL (1) | NL171710C (it) |
ZA (1) | ZA728935B (it) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1467051A (en) * | 1974-01-03 | 1977-03-16 | Shell Int Research | Process for the production of polyolefins and catalyst therefor |
JPS52155199A (en) * | 1976-06-18 | 1977-12-23 | Mitsubishi Petrochem Co Ltd | Production of titanium trichloride composition |
DE3782243T2 (de) * | 1986-08-26 | 1993-03-04 | Mitsui Petrochemical Ind | Katalysator zur polymerisierung von alpha-olefin und verfahren. |
US4719193A (en) * | 1986-09-30 | 1988-01-12 | Union Carbide Corporation | Processes for preparing polyethylene catalysts by heating catalyst precursors |
IT1260497B (it) * | 1992-05-29 | 1996-04-09 | Himont Inc | Polimeri cristallini del propilene aventi migliorata processabilita' allo stato e processo per la loro preparazione |
US7074871B2 (en) * | 1992-05-29 | 2006-07-11 | Basell Poliolefine Italia S.R.L. | Crystalline polymers of propylene having improved processability in the molten state and process for their preparation |
US6015779A (en) | 1996-03-19 | 2000-01-18 | Energy & Environmental International, L.C. | Methods for forming amorphous ultra-high molecular weight polyalphaolefin drag reducing agents |
US6815011B2 (en) | 2000-11-27 | 2004-11-09 | Energy & Environmental International, L.C. | Alpha olefin monomer partitioning agents for drag reducing agents and methods of forming drag reducing agents using alpha olefin monomer partitioning agents |
RU2277103C2 (ru) | 2001-01-16 | 2006-05-27 | Энерджи Энд Энвиронментал Интернэшнл, Л.К. | Способ получения аморфных полиолефинов со сверхвысоким молекулярным весом, предназначенных для использования в качестве агентов, снижающих сопротивление течению |
US7012046B2 (en) | 2001-06-08 | 2006-03-14 | Eaton Gerald B | Drag reducing agent slurries having alfol alcohols and processes for forming drag reducing agent slurries having alfol alcohols |
US7049262B2 (en) * | 2003-10-20 | 2006-05-23 | Equistar Chemicals, Lp | Cryogenic method for forming a supported catalyst |
CA3052770C (en) * | 2017-02-07 | 2021-09-07 | Exxonmobil Chemical Patents Inc. | Processes for reducing the loss of catalyst activity of a ziegler-natta catalyst |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE572696A (it) * | 1957-11-06 | 1900-01-01 | ||
US2971925A (en) * | 1959-02-16 | 1961-02-14 | Shell Oil Co | Polymerization catalysts |
US3261821A (en) * | 1959-12-31 | 1966-07-19 | Hercules Inc | Process and catalyst for polymerization of 1-olefins |
DE1595600A1 (de) * | 1966-03-10 | 1970-05-14 | Hoechst Ag | Verfahren zur kontinuierlichen Herstellung von hochmolekularem Polyaethylen |
NL6609092A (it) * | 1966-06-30 | 1968-01-02 | ||
GB1139450A (en) * | 1967-12-27 | 1969-01-08 | Shell Int Research | Process for the preparation of a catalyst-forming component suitable for polymerizing -‡-olefins to powders with improved properties |
DE1926940A1 (de) * | 1969-05-27 | 1970-12-03 | Hoechst Ag | Verfahren zur Polymerisation von alpha-Olefinen |
-
0
- BE BE792607D patent/BE792607A/nl not_active IP Right Cessation
-
1971
- 1971-12-20 GB GB5901371A patent/GB1390355A/en not_active Expired
-
1972
- 1972-11-23 CA CA157,289A patent/CA1000028A/en not_active Expired
- 1972-12-13 NL NLAANVRAGE7216882,A patent/NL171710C/xx not_active IP Right Cessation
- 1972-12-14 IT IT32931/72A patent/IT971883B/it active
- 1972-12-18 JP JP12633372A patent/JPS5535333B2/ja not_active Expired
- 1972-12-18 DE DE19722261967 patent/DE2261967A1/de active Granted
- 1972-12-18 AU AU50218/72A patent/AU464811B2/en not_active Expired
- 1972-12-18 US US00316191A patent/US3857795A/en not_active Expired - Lifetime
- 1972-12-18 FR FR7244992A patent/FR2164650B1/fr not_active Expired
- 1972-12-18 ZA ZA728935A patent/ZA728935B/xx unknown
- 1972-12-18 BR BR8908/72A patent/BR7208908D0/pt unknown
Also Published As
Publication number | Publication date |
---|---|
JPS5535333B2 (it) | 1980-09-12 |
AU464811B2 (en) | 1975-08-22 |
DE2261967A1 (de) | 1973-06-28 |
ZA728935B (en) | 1973-09-26 |
CA1000028A (en) | 1976-11-23 |
NL171710B (nl) | 1982-12-01 |
FR2164650B1 (it) | 1976-08-27 |
NL171710C (nl) | 1983-05-02 |
JPS4869790A (it) | 1973-09-21 |
BR7208908D0 (pt) | 1973-09-25 |
DE2261967C2 (it) | 1987-05-21 |
BE792607A (nl) | 1973-06-12 |
US3857795A (en) | 1974-12-31 |
NL7216882A (it) | 1973-06-22 |
GB1390355A (en) | 1975-04-09 |
AU5021872A (en) | 1974-06-20 |
FR2164650A1 (it) | 1973-08-03 |
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