IT971883B - Processo di polimerizzazione e catalizzatore per lo stess - Google Patents

Processo di polimerizzazione e catalizzatore per lo stess

Info

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
Application number
IT32931/72A
Other languages
English (en)
Original Assignee
Shell Int Research
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shell Int Research filed Critical Shell Int Research
Application granted granted Critical
Publication of IT971883B publication Critical patent/IT971883B/it

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)
  • Graft Or Block Polymers (AREA)
  • Catalysts (AREA)
IT32931/72A 1971-12-20 1972-12-14 Processo di polimerizzazione e catalizzatore per lo stess IT971883B (it)

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)

* Cited by examiner, † Cited by third party
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
EP0279863B1 (en) * 1986-08-26 1992-10-14 Mitsui Petrochemical Industries, Ltd. Catalyst for polymerizing alpha-olefin and polymerization process
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
CN1310960C (zh) 2001-01-16 2007-04-18 能源及环境国际有限公司 用作减阻剂的无定形超高分子量聚烯烃的形成方法
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
US11311870B2 (en) 2017-02-07 2022-04-26 Exxonmobil Chemical Patents Inc. Processes for reducing the loss of catalyst activity of a Ziegler-Natta catalyst

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
AU464811B2 (en) 1975-08-22
JPS4869790A (it) 1973-09-21
US3857795A (en) 1974-12-31
DE2261967A1 (de) 1973-06-28
FR2164650A1 (it) 1973-08-03
BE792607A (nl) 1973-06-12
GB1390355A (en) 1975-04-09
NL171710B (nl) 1982-12-01
JPS5535333B2 (it) 1980-09-12
DE2261967C2 (it) 1987-05-21
BR7208908D0 (pt) 1973-09-25
NL171710C (nl) 1983-05-02
ZA728935B (en) 1973-09-26
FR2164650B1 (it) 1976-08-27
CA1000028A (en) 1976-11-23
NL7216882A (it) 1973-06-22
AU5021872A (en) 1974-06-20

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