Back to results
US 10,647,786 B2Granted
Supported catalyst systems and processes for use thereof
AssigneeExxonMobil Chemical Patents Inc.
InventorsXuan Ye, John R. Hagadorn, Matthew W. Holtcamp, Gregory S. Day, David F. Sanders
Life of this patent
Estimating the term…
Abstract
This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes a pyridyldiamido transition metal complex, an activator and a support material. The catalyst system may be used for preparing ultrahigh molecular weight polyolefins.
Claims24
A supported catalyst system comprising:
- (i) a pyridyldiamido transition metal complex having the general formula (II) or (III);
- (ii) an activator;
- and
- (iii) a fluorided support material;
- wherein;
- M is Ti, Zr, or Hf;
- R1, R1, R11, and R11 are independently selected from the group consisting of phenyl groups that are variously substituted with between zero to five substituents selected from F, Cl, Br, I, CF3, NO2, alkoxy groups having one to ten carbons, dialkylamino groups having one to ten carbons, hydrocarbyl groups having one to ten carbons, and substituted hydrocarbyl groups having one to ten carbons;
- R2, R2, R10, and R10 are independently —E(R12)(R13)— with E being carbon, and each R12 and R13 being independently selected from the group consisting of hydrogen, hydrocarbyls, alkoxy, silyl, amino, aryloxy, substituted hydrocarbyls, halogen, and phosphino;
- 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;
- R3, R3, R4, R4, R5, 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, R3 & R4, R4 & R5 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, R6, R7, R7, R8, R8, R9, R9, R16, and R17 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, R7 & R8, R8 & R9, R9 &R10, R6 & R7, R7 & R16, R16 & R17 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 selected from halide, alkyl, aryl, alkoxy, amido, hydrido, phenoxy, hydroxy, silyl, allyl, alkenyl, and alkynyl, 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 a neutral Lewis base selected from ethers, thio-ethers, amines, nitriles, imines, pyridines, and phosphines;
- w is 0, 1, 2, 3 or 4, and
- wherein the supported catalyst system increases an incorporation of a comonomer into a copolymer during polymerization of a monomer and the comonomer in the presence of the supported catalyst system as compared to a comparative catalyst system that is the same as the supported catalyst system except the support material in the comparative catalyst system is a non-fluorided support material.
13 more elements
A process for polymerization of olefin monomers comprising:
- contacting a monomer and a comonomer with a supported catalyst system to produce a copolymer, wherein the polymerization is carried out in the slurry or gas phase, and wherein the supported catalyst system comprises:
- (i) a pyridyldiamido transition metal complex having the general formula (II) or (III);
- (ii) an activator;
- and
- (iii) a fluorided support material;
- wherein:
- M is Ti, Zr, or Hf;
- R1, R1, R11, and R11 are independently selected from the group consisting of phenyl groups that are variously substituted with between zero to five substituents selected from F, Cl, Br, I, CF3, NO2, alkoxy groups having one to ten carbons, dialkylamino groups having one to ten carbons, hydrocarbyl groups having one to ten carbons, and substituted hydrocarbyl groups having one to ten carbons;
- R2, R2, R10, and R10 are independently, —E(R12)(R13)— with E being carbon, and each R12 and R13 being independently selected from the group consisting of hydrogen, hydrocarbyls, alkoxy, silyl, amino, aryloxy, substituted hydrocarbyls, halogen, and phosphino;
- R3, R3, R4, R4, R5, 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, R3 & R4, R4 & R5 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, R6, R7, R7, R8, R8, R9, R9, R16, and R17 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, R7 & R8, R8 & R9, R9 & R10, R6 & R7, R7 & R16, R16 & R17 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, and
- wherein the supported catalyst system increases an incorporation of the comonomer into the copolymer as compared to a comparative catalyst system that is the same as the supported catalyst system except the support material in the comparative catalyst system is a non-fluorided support material.
13 more elements
Dependencies are inferred from the claim text.