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US 8,785,576 B2Granted
Catalyst compositions for the polymerization of olefins
AssigneeChevron Phillips Chemical Company LP
InventorsMark L. Hlavinka, Qing Yang
Life of this patent
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Abstract
Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.
Claims23
A compound having the formula:
- wherein:
- M is Ti, Zr, or Hf;
- X1 and X2 independently are a monoanionic ligand;
- each RB and RC independently is a halide, a C1 to C36 hydrocarbyl group, a C1 to C36 halogenated hydrocarbyl group, a C1 to C36 hydrocarboxy group, or a C1 to C36 hydrocarbylsilyl group, wherein p and q independently are 0, 1, 2, 3, or 4;
- and
- RE is a C2 to C36 alkenyl group.
3 more elements
A catalyst composition comprising:
- (i) an N,N-bis[2-hydroxidebenzyl]amine compound having formula (Ia):
- wherein:
- M is Ti, Zr, or Hf;
- X1 and X2 independently are a monoanionic ligand;
- each RB and RC independently is a halide, a C1 to C36 hydrocarbyl group, a C1 to C36 halogenated hydrocarbyl group, a C1 to C36 hydrocarboxy group, or a C1 to C36 hydrocarbylsilyl group, wherein p and q independently are 0, 1, 2, 3, or 4;
- and
- RA is a C1 to C36 hydrocarbyl group or C1 to C36 halogenated hydrocarbyl group;
- (ii) an activator-support comprising a solid oxide treated with an electron-withdrawing anion;
- and
- (iii) optionally, a co-catalyst.
7 more elements
Dependencies are inferred from the claim text.