Fluorinated transition metal catalysts and formation thereof

• US 8,110,518 B2
• Filed: 10/26/2007
• Issued: 02/07/2012
• Est. Priority Date: 04/28/2006
• Status: Expired due to Fees

• Current Assignee: Fina Technology, Inc. (Totalenergies Se)
• Original Assignee: Fina Technology, Inc. (Totalenergies Se)
• Inventors: Marin, Vladimir, Lopez, Margarito, Razavi, Abbas, Coffy, Tim, Daumerie, Michel
• Primary Examiner(s): LU, C CAIXIA
• Application Number:
  US11/978,002
• Publication Number:
  US 20090156761A1
• Time in Patent Office: 1,565 Days
• Field of Search: 502/103, 502/119, 502/104, 502/120, 502/152, 526/154, 526/158, 526/160, 526/170
• US Class Current: 502/119
• CPC Class Codes: B01J 21/12 Silica and alumina
• CPC Class Codes: B01J 37/26 Fluorinating
• CPC Class Codes: C08F 10/00 Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• CPC Class Codes: C08F 10/06 Propene
• CPC Class Codes: C08F 110/06 Propene
• CPC Class Codes: C08F 2/00 Processes of polymerisation
• CPC Class Codes: C08F 210/06 Propene
• CPC Class Codes: C08F 210/14 Monomers containing five or more carbon atoms
• CPC Class Codes: C08F 210/16 Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
• CPC Class Codes: C08F 2400/02 Control or adjustment of polymerization parameters
• CPC Class Codes: C08F 2410/07 Catalyst support treated by an anion, e.g. Cl-, F-, SO42-
• CPC Class Codes: C08F 2500/03 Narrow molecular weight distribution, i.e. Mw/Mn < 3
• CPC Class Codes: C08F 2500/04 Broad molecular weight distribution, i.e. Mw/Mn > 6
• CPC Class Codes: C08F 2500/12 Melt flow index or melt flow ratio
• CPC Class Codes: C08F 2500/20 Activation energy or enthalpy
• CPC Class Codes: C08F 4/025 Metal oxides
• CPC Class Codes: C08F 4/65912 in combination with an organoaluminium compound
• CPC Class Codes: C08F 4/65916 supported on a carrier, e.g. silica, MgCl2, polymer
• CPC Class Codes: C08F 4/65927 two cyclopentadienyl rings being mutually bridged
• CPC Class Codes: Y10S 526/943 Polymerization with metallocene catalysts

Abstract

Supported catalyst systems and methods of forming the same are described herein. In one specific embodiment, the methods generally include providing an inorganic support material and contacting the inorganic support material with an aluminum fluoride compound represented by the formula AlF_pX_3-pB_q to form an aluminum fluoride impregnated support, wherein X is selected from Cl, Br and OH⁻, B is H₂O, p is selected from 1 to 3 and q is selected from 0 to 6. The method further includes contacting the aluminum fluoride impregnated support with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]_mM[A]_n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.

Claims

1. A method of forming a supported catalyst system comprising:

providing an inorganic support material;

contacting the inorganic support material with an aluminum fluoride compound represented by the formula AlF_pX_3-pB_q to form an aluminum fluoride impregnated support, wherein X is selected from Cl, Br and OH⁻

, B is H₂O, p is selected from 1 to 3 and q is selected from 0 to 6; and

contacting the aluminum fluoride impregnated support with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]_mM[A]_n;

wherein L is a ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.

2. A supported metallocene catalyst composition formed by the method of claim 1.