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US 2003/0158033 A1Published application
Monoamide based catalyst compositions for the polymerization of olefins
AssigneeUnivation Technologies, LLC
InventorRex Eugene Murray
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Abstract
Novel catalyst monoamide precursor compositions and the corresponding single site-like catalysts for olefin polymerization.
Claims31
A catalyst precursor composition selected from the group consisting of those represented by:
- 30
- wherein
- T is a bridging group containing 2 or more bridging atoms;
- M is a metallic element selected from Groups 1 to 15 and the Lanthanide series of the Periodic Table of the Elements;
- Z is a coordination ligand;
- each L is a monovalent, bivalent, or trivalent anionic ligand;
- n is an integer from 1 to 6;
- m is an integer from 1 to 3;
- k has the value of 2 when X is nitrogen or phosphorus, and k has the value of 1 when X is oxygen or sulfur;
- X and Y are heteroatoms each independently selected from nitrogen, phosphorus, oxygen or sulfur;
- R is a non-bulky substituent that has relatively low steric hindrance with respect to the X substituent and is a straight or branched chain alkyl group;
- and
- R′ is a bulky substituent with respect to Y and is selected from alkyl, alkenyl, cycloalkyl, heterocyclic (both heteroalkyl and heteroaryl), alkylaryl, arylalkyl, and polymeric groups.
10 more elements
A catalyst composition comprising:
- a) a catalyst precursor selected from the group consisting of those represented by:
- 36
- wherein
- T is a bridging group containing 2 or more bridging atoms;
- M is a metallic element selected from Groups 1 to 15 and the Lanthanide series of the Periodic Table of the Elements;
- Z is a coordination ligand;
- each L is a monovalent, bivalent, or trivalent anionic ligand;
- n is an integer from 1 to 6;
- m is an integer from 1 to 3;
- k has the value of 2 when X is nitrogen or phosphorus, and k has the value of 1 when X is oxygen or sulfur;
- X and Y are heteroatoms each independently selected from nitrogen, phosphorus, oxygen or sulfur;
- R is a non-bulky substituent that has relatively low steric hindrance with respect to the X substituent and is a straight or branched chain alkyl group;
- and
- R′ is a bulky substituent with respect to Y and is selected from alkyl, alkenyl, cycloalkyl, heterocyclic (both heteroalkyl and heteroaryl), alkylaryl, arylalkyl, and polymeric groups;
- and
- b) an activating cocatalyst.
13 more elements
Dependencies are inferred from the claim text.