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US 2006/0142152 A1Published application
Morphology controlled olefin polymerization process
AssigneeDow Global Technologies LLC
InventorsJoseph Coalter III, Curt Theriault, Jan Van Egmond, Roger Painter
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Abstract
A catalyst composition, method of formation and process of use in the polymerization of olefin monomers, said composition comprising a catalyst compound, an activator capable of converting said catalyst compound into an active catalyst for addition polymerization, optionally a carrier, further optionally a liquid diluent, and a hydroxycarboxylate metal salt additive.
Claims6
A catalyst composition comprising a catalyst compound selected from Group 4 metal complexes containing one or more ligands that are π-bonded to the transition metal and metal complexes of the formula.
- wherein
- R1 is selected from alkyl, cycloalkyl, heteroalkyl, cycloheteroalkyl, aryl, and inertly substituted derivatives thereof containing from 1 to 30 atoms not counting hydrogen:
- T is a divalent bridging group of from 1 to 20 atoms not counting hydrogen.
- R2 is a C6-20 heteroaryl group containing Lewis base functionality,
- M is the Group 4 metal,
- Xe is an anionic, neutral or dianionic ligand group,
- x is a number from 0 to 5 indicating the number of such Xe groups, and
- bonds, optional bonds and electron donative interactions are represented by lines, dotted lines and arrows respectively;
- an activator capable of converting said catalyst compound into an active catalyst for addition polymerization, optionally a carrier, further optionally a liquid diluent, and a hydroxycarboxylate metal salt additive.
6 more elements
Dependencies are inferred from the claim text.