MX9606540A - Proceso para la preparacion de polimeros vinilaromaticos cristalinos con una estructura predominante sindiotactica. - Google Patents

Proceso para la preparacion de polimeros vinilaromaticos cristalinos con una estructura predominante sindiotactica.

Info

Publication number
MX9606540A
MX9606540A MX9606540A MX9606540A MX9606540A MX 9606540 A MX9606540 A MX 9606540A MX 9606540 A MX9606540 A MX 9606540A MX 9606540 A MX9606540 A MX 9606540A MX 9606540 A MX9606540 A MX 9606540A
Authority
MX
Mexico
Prior art keywords
preparation
syndiotactic structure
vinylaromatic polymers
crystalline
essentially syndiotactic
Prior art date
Application number
MX9606540A
Other languages
English (en)
Other versions
MXPA96006540A (es
Inventor
Ricardo 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
Publication of MXPA96006540A publication Critical patent/MXPA96006540A/es
Publication of MX9606540A publication Critical patent/MX9606540A/es

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
    • C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
    • C08F2410/01—Additive used together with the catalyst, excluding compounds containing Al or B
    • 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
    • C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
    • C08F2410/03—Multinuclear procatalyst, i.e. containing two or more metals, being different or not
    • 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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymerization Catalysts (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Un proceso para la preparacion de polímeros vinilaromáticos cristalinos con una estructura predominantemente sindiotáctica, el cual comprende polimerizar monomeros vinilaromáticos, solos o mezclados con por lo menos otro monomero en presencia de un sistema catalizador que consiste esencialmente de[ A) un comple o de titanio o zirconio seleccionado de aquellos que tienen la formula general[ MR1R2R3R4, A1MR1R2R3, A1A2MR1R2 B) un catalizador seleccionado de un alquilaluminoxano y un compuesto de boro que tiene la formula (II): BX1X2X3 o una de sus sales; C) un derivado de estaño que tiene la formula general; SnR5R6R7R8.
MX9606540A 1995-12-21 1996-12-17 Proceso para la preparacion de polimeros vinilaromaticos cristalinos con una estructura predominante sindiotactica. MX9606540A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95MI002701A IT1277677B1 (it) 1995-12-21 1995-12-21 Procedimento per la preparazione di polimeri vinilaromatici cristallini a struttura predominantemente sindiotattica
MIMI95A002701 1995-12-21

Publications (2)

Publication Number Publication Date
MXPA96006540A MXPA96006540A (es) 1997-06-01
MX9606540A true MX9606540A (es) 1997-06-28

Family

ID=11372771

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9606540A MX9606540A (es) 1995-12-21 1996-12-17 Proceso para la preparacion de polimeros vinilaromaticos cristalinos con una estructura predominante sindiotactica.

Country Status (11)

Country Link
US (1) US5728784A (es)
EP (1) EP0780405B1 (es)
JP (1) JPH09183811A (es)
AT (1) ATE176248T1 (es)
CA (1) CA2191361A1 (es)
DE (1) DE69601457T2 (es)
DK (1) DK0780405T3 (es)
ES (1) ES2128815T3 (es)
GR (1) GR3029595T3 (es)
IT (1) IT1277677B1 (es)
MX (1) MX9606540A (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6274752B1 (en) 1996-02-20 2001-08-14 Northwestern University Organo-Lewis acid as cocatalyst for cationic homogeneous Ziegler-Natta olefin polymerizations
US5856256A (en) * 1996-02-20 1999-01-05 Northwestern University Organo-Lewis acid as cocatalyst for cationic homogeneous Ziegler-Natta olefin polymerizations
US6291695B1 (en) 1996-02-20 2001-09-18 Northwestern University Organo-Lewis acids of enhanced utility, uses thereof, and products based thereon
IT1286031B1 (it) * 1996-10-24 1998-07-07 Enichem Spa Procedimento per la produzione di polimeri vinilaromatici ad elevato grado di sindiotassia
EP0954540B1 (en) 1997-01-14 2004-07-28 SABIC Polypropylenes B.V. A process for polymerizing olefins
NL1004992C2 (nl) * 1997-01-14 1998-07-15 Dsm Nv Toepassing van verbindingen die Si, Ge, Sn of Pb bevatten als cokatalysator bij de polymerisatie van olefinen.
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
CN1117106C (zh) * 1999-06-24 2003-08-06 中国石油化工集团公司 间规聚苯乙烯聚合物
US6982306B2 (en) 2003-11-26 2006-01-03 Chevron Phillips Chemical Company, L.P. Stannoxy-substituted metallocene catalysts for olefin and acetylene polymerization

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1276748C (en) 1985-07-29 1990-11-20 Michitake Uoi Styrene polymers
IL84797A (en) 1986-12-15 1993-01-14 Montedison Spa Production of crystalline vinyl aromatic polymers having mainly a syndiotactic structure
US4978730A (en) 1987-12-24 1990-12-18 Idemitsu Kosan Company Limited Process for producing styrene-based polymers and catalyst for use therein
IT1231774B (it) * 1989-08-03 1991-12-21 Enichem Anic Spa Catalizzatore e procedimento per la polimerizzazione e per la copolimerizzazione di alfa olefine.
US5326837A (en) * 1992-11-20 1994-07-05 Mobil Oil Corporation Catalyst systems for syndiospecific polymerization of styrenes
EP0675139B1 (en) * 1994-03-31 1998-10-14 Idemitsu Kosan Co., Ltd. Process for producing styrenic polymer
IT1276801B1 (it) * 1995-06-30 1997-11-03 Enichem Spa Procedimento per la preparazione di polimeri vinilaromatici cristallini a struttura predominantemente sindiotattica
US5644009A (en) * 1995-11-27 1997-07-01 Industrial Technology Research Institute Catalyst composition for preparing high syndiotacticity polystyrene from styrene of other arylethylene monomers and processes using the same

Also Published As

Publication number Publication date
JPH09183811A (ja) 1997-07-15
DK0780405T3 (da) 1999-09-13
US5728784A (en) 1998-03-17
GR3029595T3 (en) 1999-06-30
DE69601457T2 (de) 1999-06-10
CA2191361A1 (en) 1997-06-22
IT1277677B1 (it) 1997-11-11
ES2128815T3 (es) 1999-05-16
DE69601457D1 (de) 1999-03-11
ATE176248T1 (de) 1999-02-15
ITMI952701A1 (it) 1997-06-21
EP0780405B1 (en) 1999-01-27
EP0780405A1 (en) 1997-06-25
ITMI952701A0 (es) 1995-12-21

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Legal Events

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FA Abandonment or withdrawal