IT1286031B1 - Procedimento per la produzione di polimeri vinilaromatici ad elevato grado di sindiotassia - Google Patents

Procedimento per la produzione di polimeri vinilaromatici ad elevato grado di sindiotassia

Info

Publication number
IT1286031B1
IT1286031B1 IT96MI002203A ITMI962203A IT1286031B1 IT 1286031 B1 IT1286031 B1 IT 1286031B1 IT 96MI002203 A IT96MI002203 A IT 96MI002203A IT MI962203 A ITMI962203 A IT MI962203A IT 1286031 B1 IT1286031 B1 IT 1286031B1
Authority
IT
Italy
Prior art keywords
tin
high degree
syndiotaxy
production
alkylaluminoxane
Prior art date
Application number
IT96MI002203A
Other languages
English (en)
Inventor
Riccardo Po'
Nicoletta Cardi
Roberto Santi
Original Assignee
Enichem Spa
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 Enichem Spa filed Critical Enichem Spa
Priority to IT96MI002203A priority Critical patent/IT1286031B1/it
Priority to DE69701028T priority patent/DE69701028T2/de
Priority to ES97117019T priority patent/ES2140177T3/es
Priority to EP97117019A priority patent/EP0838481B1/en
Priority to AT97117019T priority patent/ATE188225T1/de
Priority to US08/944,783 priority patent/US5830959A/en
Priority to CA002216019A priority patent/CA2216019A1/en
Publication of ITMI962203A1 publication Critical patent/ITMI962203A1/it
Application granted granted Critical
Publication of IT1286031B1 publication Critical patent/IT1286031B1/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
    • C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
    • C08F12/02—Monomers containing only one unsaturated aliphatic radical
    • C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
    • C08F12/06—Hydrocarbons
    • C08F12/08—Styrene
    • 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
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound

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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
IT96MI002203A 1996-10-24 1996-10-24 Procedimento per la produzione di polimeri vinilaromatici ad elevato grado di sindiotassia IT1286031B1 (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT96MI002203A IT1286031B1 (it) 1996-10-24 1996-10-24 Procedimento per la produzione di polimeri vinilaromatici ad elevato grado di sindiotassia
DE69701028T DE69701028T2 (de) 1996-10-24 1997-10-01 Verfahren zur Herstellung vinyl-aromatischer Polymere mit hohem Anteil an Syndiotaktizität
ES97117019T ES2140177T3 (es) 1996-10-24 1997-10-01 Procedimiento para la preparacion de polimeros vinilaromaticos con un alto grado de sindiotacticidad.
EP97117019A EP0838481B1 (en) 1996-10-24 1997-10-01 Process for the production of vinyl-aromatic polymers with a high degree of syndiotacticity
AT97117019T ATE188225T1 (de) 1996-10-24 1997-10-01 Verfahren zur herstellung vinyl-aromatischer polymere mit hohem anteil an syndiotaktizität
US08/944,783 US5830959A (en) 1996-10-24 1997-10-06 Process for the production of vinylaromatic polymers with a high degree of syndiotacticity
CA002216019A CA2216019A1 (en) 1996-10-24 1997-10-08 Process for the production of vinylaromatic polymers with a high degree of syndiotacticity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96MI002203A IT1286031B1 (it) 1996-10-24 1996-10-24 Procedimento per la produzione di polimeri vinilaromatici ad elevato grado di sindiotassia

Publications (2)

Publication Number Publication Date
ITMI962203A1 ITMI962203A1 (it) 1998-04-24
IT1286031B1 true IT1286031B1 (it) 1998-07-07

Family

ID=11375082

Family Applications (1)

Application Number Title Priority Date Filing Date
IT96MI002203A IT1286031B1 (it) 1996-10-24 1996-10-24 Procedimento per la produzione di polimeri vinilaromatici ad elevato grado di sindiotassia

Country Status (7)

Country Link
US (1) US5830959A (it)
EP (1) EP0838481B1 (it)
AT (1) ATE188225T1 (it)
CA (1) CA2216019A1 (it)
DE (1) DE69701028T2 (it)
ES (1) ES2140177T3 (it)
IT (1) IT1286031B1 (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0861853A1 (en) * 1997-02-27 1998-09-02 ENICHEM S.p.A. Catalyst and process for the syndiotactic polymerization of vinylaromatic compounds
US6127302A (en) * 1997-12-09 2000-10-03 Union Carbide Chemicals & Plastics Technology Corporation Unbridged monocyclopentadienyl metal complex catalyst and a process for polyolefin production
ITMI980934A1 (it) 1998-04-30 1999-10-30 Enichem Spa Procedimento per la preparazione di manufatti a base di polimeri vinilaromatici a struttura predominantemente sindiotattica
IT1302680B1 (it) 1998-10-15 2000-09-29 Enichem Spa Procedimento per la preparazione di polimeri vinilaromatici adelevato grado di sindiotassia.
US6982306B2 (en) 2003-11-26 2006-01-03 Chevron Phillips Chemical Company, L.P. Stannoxy-substituted metallocene catalysts for olefin and acetylene polymerization
CA3120970A1 (en) 2018-11-26 2020-06-04 Denali Therapeutics Inc. Methods for treating dysregulated lipid metabolism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4978730A (en) * 1987-12-24 1990-12-18 Idemitsu Kosan Company Limited Process for producing styrene-based polymers and catalyst for use therein
AU624219B2 (en) * 1989-02-16 1992-06-04 Idemitsu Kosan Company Limited Process for preparation of aluminoxane
JPH02252706A (ja) * 1989-03-28 1990-10-11 Idemitsu Kosan Co Ltd スチレン系重合体の製造方法
US5326837A (en) * 1992-11-20 1994-07-05 Mobil Oil Corporation Catalyst systems for syndiospecific polymerization of styrenes
IT1277677B1 (it) * 1995-12-21 1997-11-11 Enichem Spa Procedimento per la preparazione di polimeri vinilaromatici cristallini a struttura predominantemente sindiotattica

Also Published As

Publication number Publication date
ES2140177T3 (es) 2000-02-16
CA2216019A1 (en) 1998-04-24
EP0838481B1 (en) 1999-12-29
DE69701028D1 (de) 2000-02-03
US5830959A (en) 1998-11-03
ATE188225T1 (de) 2000-01-15
DE69701028T2 (de) 2000-07-20
ITMI962203A1 (it) 1998-04-24
EP0838481A1 (en) 1998-04-29

Similar Documents

Publication Publication Date Title
NO892330D0 (no) Framgangsmaate og katalysator for framstilling av syndiotaktiske polyolefiner.
CA2231398A1 (en) Control of molecular weight and end-group functionality in polymers
YU11791A (sh) Postupak za proizvodnju kalemljenih kopolimera olefinskih polimera
NO174106C (no) Katalysatorer for polymerisering av olefiner
TW200514584A (en) Postcrosslinking of hydrogels with bicyclic amide acetals
ATE191797T1 (de) Vernetzte polymere enthaltend salzstrukturen
ATE154343T1 (de) Kontrolle des molekulargewichts und der endgruppenfunktionalität in polymeren unter verwendung ungesättigter peroxide als kettenübertragungsmittel
ATE276292T1 (de) Herstellungsverfahren von siliciumorganischen hybridcopolymeren durch kontrollierte radikalische polymerisation
IT1286031B1 (it) Procedimento per la produzione di polimeri vinilaromatici ad elevato grado di sindiotassia
CA2334563A1 (en) Use of 2,2,6,6 tetraalkylpiperidine-n-oxyl radicals having long alkyl chains as polymerization regulators
IT1277677B1 (it) Procedimento per la preparazione di polimeri vinilaromatici cristallini a struttura predominantemente sindiotattica
UA26440A (uk) Твердий каталізатор полімеризації пропілеhу hа осhові трихлориду титаhу, спосіб його одержаhhя і спосіб одержаhhя поліпропілеhу
DE60042683D1 (de) Verfahren zur herstellung von oxycarbonylpolymeren, funktionalisierung, hergestellte polymere und funktionalisierungsagens
IT1276801B1 (it) Procedimento per la preparazione di polimeri vinilaromatici cristallini a struttura predominantemente sindiotattica
ATE130301T1 (de) Mesogene gruppen enthaltende silanolverbindungen, mesogene gruppen enthaltende polymerisierbare monomere und mesogene gruppen enthaltende polymere.
DK0770630T3 (da) Fremgangsmåde til fremstilling af krystallinske vinylaromatiske polymerer med en fortrinsvis syndiotaktisk struktur

Legal Events

Date Code Title Description
0001 Granted