NO169776C - PROCEDURE FOR PREPARING A MODIFIED SPAERIC POLYMERIZATION CATALYST AND USING THE CATALYST - Google Patents

PROCEDURE FOR PREPARING A MODIFIED SPAERIC POLYMERIZATION CATALYST AND USING THE CATALYST

Info

Publication number
NO169776C
NO169776C NO872444A NO872444A NO169776C NO 169776 C NO169776 C NO 169776C NO 872444 A NO872444 A NO 872444A NO 872444 A NO872444 A NO 872444A NO 169776 C NO169776 C NO 169776C
Authority
NO
Norway
Prior art keywords
catalyst
polymerisation
spherical
spaeric
preparing
Prior art date
Application number
NO872444A
Other languages
Norwegian (no)
Other versions
NO169776B (en
NO872444D0 (en
NO872444L (en
Inventor
Claude Brun
Auguste Cheux
Michel Avaro
Original Assignee
Atochem
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9337202&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO169776(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atochem filed Critical Atochem
Publication of NO872444D0 publication Critical patent/NO872444D0/en
Publication of NO872444L publication Critical patent/NO872444L/en
Publication of NO169776B publication Critical patent/NO169776B/en
Publication of NO169776C publication Critical patent/NO169776C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • 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)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Dental Preparations (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Polymerization Catalysts (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Process for the treatment of a spherical catalyst for the polymerisation of olefins, containing at least one transition metal, a magnesium compound and a halogen, characterised in that ethylene is prepolymerised in the presence of the spherical catalyst, in the presence of a cocatalyst chosen from alkylaluminiums, at least partially in suspension, to a degree of prepolymerisation adapted to the polymerisation process in which the prepolymer will be subsequently used, a spheroprotector being used in combination with the various components not later than after the prepolymerisation, the accepted formula of the said spheroprotector being: AlR'mR''nClpHq in which 0.05 < p </= 1 0 < m < 2.95 0 < n < 2.95 0 </= q </= 1 it being known that m + n + p + q = 3 and R' and R'', which are identical or different, are linear, branched or cyclic hydrocarbon radicals containing from 1 to 14 carbon atoms. The catalyst thus treated conserves its spherical morphology in the subsequent polymerisation of ethylene. It is particularly suited for the manufacture of linear polyethylene powder with spherical morphology.
NO872444A 1986-07-08 1987-06-11 PROCEDURE FOR PREPARING A MODIFIED SPAERIC POLYMERIZATION CATALYST AND USING THE CATALYST NO169776C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8609930A FR2601372B1 (en) 1986-07-08 1986-07-08 PROCESS FOR THE TREATMENT OF SPHERICAL OLEFIN POLYMERIZATION CATALYSTS. APPLICATION OF THE CATALYST OBTAINED IN THE POLYMERIZATION OF OLEFINS

Publications (4)

Publication Number Publication Date
NO872444D0 NO872444D0 (en) 1987-06-11
NO872444L NO872444L (en) 1988-01-11
NO169776B NO169776B (en) 1992-04-27
NO169776C true NO169776C (en) 1992-08-05

Family

ID=9337202

Family Applications (1)

Application Number Title Priority Date Filing Date
NO872444A NO169776C (en) 1986-07-08 1987-06-11 PROCEDURE FOR PREPARING A MODIFIED SPAERIC POLYMERIZATION CATALYST AND USING THE CATALYST

Country Status (11)

Country Link
EP (1) EP0252804B1 (en)
JP (1) JP2689381B2 (en)
CN (1) CN1010024B (en)
AT (1) ATE58147T1 (en)
AU (1) AU598828B2 (en)
CA (1) CA1294944C (en)
DE (1) DE3766022D1 (en)
ES (1) ES2019393B3 (en)
FI (1) FI93367C (en)
FR (1) FR2601372B1 (en)
NO (1) NO169776C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2682305B2 (en) * 1991-10-29 1997-11-26 住友化学工業株式会社 Method for producing olefin polymer
BR9301438A (en) 1993-04-05 1994-11-15 Petroleo Brasileiro Sa Process of preparation of spherical ziegler catalyst for polymerization of alpha-olefins, spherical catalyst, process of obtaining spherical polyethylene of very high molecular weight and spherical polyethylene of very high by molecular

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312784A (en) * 1977-12-13 1982-01-26 Phillips Petroleum Co. Catalyst and process of polymerization of alpha monoolefins
JPS591723B2 (en) * 1980-01-17 1984-01-13 チッソ株式会社 Method for producing α-olefin polymer
JPS5928573B2 (en) * 1980-02-05 1984-07-13 チッソ株式会社 Method for producing α-olefin polymer
FR2586022B1 (en) * 1985-08-06 1987-11-13 Bp Chimie Sa POLYMERIZATION OF OLEFINS IN THE GASEOUS PHASE WITH A ZIEGLER-NATTA CATALYST AND TWO ORGANOMETALLIC COMPOUNDS
FR2591602B1 (en) * 1985-12-18 1988-02-26 Atochem PROCESS FOR THE TREATMENT OF SPHERICAL OLEFIN POLYMERIZATION CATALYSTS. APPLICATION OF THE CATALYST OBTAINED IN THE POLYMERIZATION OF OLEFINS.

Also Published As

Publication number Publication date
FI93367B (en) 1994-12-15
FR2601372A1 (en) 1988-01-15
FI93367C (en) 1995-03-27
NO169776B (en) 1992-04-27
ES2019393B3 (en) 1991-06-16
EP0252804B1 (en) 1990-11-07
JP2689381B2 (en) 1997-12-10
CA1294944C (en) 1992-01-28
ATE58147T1 (en) 1990-11-15
CN87104796A (en) 1988-01-20
NO872444D0 (en) 1987-06-11
EP0252804A1 (en) 1988-01-13
CN1010024B (en) 1990-10-17
DE3766022D1 (en) 1990-12-13
FI873012A (en) 1988-01-09
NO872444L (en) 1988-01-11
FI873012A0 (en) 1987-07-07
JPS6323905A (en) 1988-02-01
AU598828B2 (en) 1990-07-05
AU7532687A (en) 1989-01-12
FR2601372B1 (en) 1988-10-21

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Legal Events

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