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1. WO1996004320 - CATALYST SYSTEM CONTAINING A SOLID TITANIUM COMPONENT FOR THE STEREOREGULATION OF POLYOLEFINS

Publication Number WO/1996/004320
Publication Date 15.02.1996
International Application No. PCT/US1995/009670
International Filing Date 01.08.1995
Chapter 2 Demand Filed 01.03.1996
IPC
C08F 10/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
C08F 10/06 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
04Monomers containing three or four carbon atoms
06Propene
C08F 110/06 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
110Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
04Monomers containing three or four carbon atoms
06Propene
CPC
C08F 10/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
C08F 10/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
04Monomers containing three or four carbon atoms
06Propene
C08F 110/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
110Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
04Monomers containing three or four carbon atoms
06Propene
Applicants
  • EXXON CHEMICAL PATENTS, INC. [US/US]; 5200 Bayway Drive Baytown, TX 77520, US
Inventors
  • MIRO, Nemesio, Delgado; US
  • RANDALL, James, Carlton; US
  • GEORGELLIS, George, Byron; US
Agents
  • MILLER, Douglas, W.; Exxon Chemical Company P.O. Box 2149 Baytown, TX 77522 , US
Priority Data
08/285,45603.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CATALYST SYSTEM CONTAINING A SOLID TITANIUM COMPONENT FOR THE STEREOREGULATION OF POLYOLEFINS
(FR) SYSTEME DE CATALYSEUR CONTENANT UN COMPOSANT EN TITANE SOLIDE POUR LA STEREOREGULATION DES OLEFINES
Abstract
(EN)
The present invention provides a catalyst system that exhibits unprecedented control of stereoregularity and generates an olefin polymer product having low to moderate crystallinity. The catalyst system includes (a) a solid titanium catalyst component, (b) a mixture comprised of diethylaluminum chloride and another organoaluminum compound as co-catalyst, and (c) an alkylsilane electron donor. When employed in the polymerization of propylene, the system exhibits control over the polymer stereoregularity and generation of undesirable atactic polymers resulting in the preparation of a novel polypropylene polymer of low to moderate crystallinity.
(FR)
L'invention concerne un système de catalyseur présentant des capacités de régulation de la stéréorégularité sans précédent et générant un produit polymère oléfinique présentant une cristallinité faible à modérée. Ce système de catalyseur comprend (a) un composant catalyseur en titane solide, (b) un mélange de chlorure de diéthylaluminium et un autre composé d'organoaluminium faisant office de co-catalyseur, et (c) un donneur d'électrons alkylsilane. Lorsqu'il est utilisé dans la polymérisation du propylène, ledit système assure une régulation de la stéréorégularité et de la génération de polymères atactiques indésirables, ce qui permet d'obtenir un nouveau polymère de polypropylène de cristallinité faible à modérée.
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