Back to results
US 8,710,163 B2Granted
Pyridyldiamido transition metal complexes, production and use thereof
AssigneeExxonMobil Chemical Patents Inc.
InventorsJohn R. Hagadorn, Matthew S. Bedoya
Life of this patent
Estimating the term…
Abstract
Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization.
Claims35
A pyridyldiamido transition metal complex represented by the formula:
- (I) or (II):
- wherein:
- M is a Group 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal;
- R1 is selected from the group consisting of hydrocarbyls, substituted hydrocarbyls, and silyl groups;
- R11 is selected from the group consisting of substituted 5 or 6 membered aromatic rings;
- R10 is -E*(R12)(R13)—;
- E and E* are, independently, carbon, silicon, or germanium;
- each R12 and R13 is independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, alkoxy, silyl, amino, aryloxy, halogen, and phosphino, R12 and R13 may be joined to form a saturated, substituted or unsubstituted hydrocarbyl ring, where the ring has 4, 5, 6, or 7 ring carbon atoms and where substitutions on the ring can join to form additional rings, or R12 and R13 may be joined to form a saturated heterocyclic ring, or a saturated substituted heterocyclic ring where substitutions on the ring can join to form additional rings;
- each R12* and R13* is independently selected from the group consisting of hydrogen, C1 to C5 hydrocarbyls, and substituted C1 to C5 hydrocarbyls;
- R3, R4, and R5 are independently selected from the group consisting of hydrogen, hydrocarbyls, substituted hydrocarbyls, alkoxy, aryloxy, halogen, amino, and silyl, and wherein adjacent R groups (R3 & R4 and/or R4 & R5) may be joined to form a substituted or unsubstituted hydrocarbyl or heterocyclic ring, where the ring has 5, 6, 7, or 8 ring atoms and where substitutions on the ring can join to form additional rings;
- R6, R7, R8, R9, R15, and R16 are independently selected from the group consisting of hydrogen, hydrocarbyls, substituted hydrocarbyls, alkoxy, halogen, amino, and silyl, and the pairs of positions, and wherein adjacent R groups (R6 & R7, and/or R7 & R15, and/or R16 & R15, and/or R8 & R9) may be joined to form a saturated, substituted or unsubstituted hydrocarbyl or heterocyclic ring, where the ring has 5, 6, 7, or 8 ring carbon atoms and where substitutions on the ring can join to form additional rings;
- L is an anionic leaving group, where the L groups may be the same or different and any two L groups may be linked to form a dianionic leaving group;
- n is 0, 1, 2, 3, or 4;
- L′ is neutral Lewis base;
- w is 0, 1, 2, 3, or 4;
- Z is —(R14*)pQ-J(R15*)q— where Q or J is bonded to R10;
- J is C or Si;
- Q is C, N, or Si;
- R14* and R15* are independently selected from the group consisting of hydrogen, hydrocarbyls, and substituted hydrocarbyls, and wherein adjacent R14* and R15* groups may be joined to form an aromatic or saturated, substituted or unsubstituted hydrocarbyl ring, where the ring has 5, 6, 7, or 8 ring carbon atoms and where substitutions on the ring can join to form additional rings;
- p is 1 or 2;
- and
- q is 1 or 2.
19 more elements
Dependencies are inferred from the claim text.