Producing polyolefin products

Patent metadata

Field	Value
Publication number	US-10865259-B2
Application number	US-201615566318-A
Country	US
Kind code	B2
Filing date	Apr 15, 2016
Priority date	Apr 17, 2015
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

A polymerization catalyst system, a method of using the polymerization catalyst system, and a polymer produced with the catalyst system. The polymerization catalyst system has a non-metallocene catalyst and a metallocene catalyst. The metallocene catalyst has the formula: wherein R1 and R2 are each independently, phenyl, methyl, chloro, fluoro, or a hydrocarbyl group.

First claim

What is claimed is:

1. A polymerization catalyst system comprising:
a non-metallocene catalyst; and
a metallocene catalyst of the formula:

wherein R 1 and R 2 are each independently, phenyl, methyl, chloro, fluoro, or a hydrocarbyl group.

2. The polymerization catalyst system of claim 1 , wherein the non-metallocene catalyst comprises a Group 15 metal-containing catalyst compound.

3. The polymerization catalyst system of claim 1 , wherein the non-metallocene catalyst comprises at least two Group 15 atoms, and wherein the non-metallocene comprises a Group 4 metal atom bound to at least one leaving group and also bound to the at least two Group 15 atoms.

4. The polymerization catalyst system of claim 1 , wherein the non-metallocene catalyst comprises a catalyst having the formula:

wherein M is a Group 3 to 12 transition metal or a Group 13 or 14 main group metal; each X is independently an anionic leaving group; y is 0 or 1; n is the oxidation state of M; m is the formal charge of the ligand represented by YZL or YZL′; L is a Group 15 or 16 element; L′ is a group 15 or 16 element or Group 14 containing group; Y is a Group 15 element; Z is a Group 15 element; R1 and R2 are independently a C1 to C20 hydrocarbon group, a heteroatom containing group having up to twenty carbon atoms, silicon, germanium, tin, lead, or phosphorus; R1 and R2 may be interconnected to each other; R3 is absent, a hydrocarbon group, hydrogen, a halogen, or a heteroatom containing group; R4 and R5 are independently an alky group, an aryl group, a substituted aryl group, a cyclic alkyl group, a substituted cyclic alkyl group, a cyclic aralkyl group, a substituted cyclic aralkyl group, or a multiple ring system; R4 and R5 may be interconnected to each other; R6 and R7 are independently absent, hydrogen, an alkyl group, a halogen, a heteroatom, or a hydrocarbyl group; and R* is absent, hydrogen, a Group 14 atom containing group, a halogen, or a heteroatom containing group.

5. The polymerization catalyst system of claim 1 , wherein the non-metallocene catalyst comprises a catalyst of the formula:

6. The polymerization catalyst system of claim 1 , wherein the non-metallocene catalyst and the metallocene catalyst are co-supported on a single support.

7. The polymerization catalyst of claim 6 , wherein at least a portion of the metallocene catalyst is added as a trim feed to the support.

8. The polymerization catalyst system of claim 1 , wherein the polymerization catalyst is a slurry mixture comprising a diluent.

9. The polymerization catalyst system of claim 1 , comprising another non-metallocene catalyst or another metallocene catalyst, or both.

Assignees

• Univation Tech Llc

Inventors

• Harlan C Jeff
• Lynn Timothy R
• Hussein Fathi David
• Boller Timothy M

Classifications

• C08F2500/24

  Polymer with special particle form or size · CPC title

• C08F4/65904

  in combination with another component of C08F4/64 · CPC title

• C08F4/64148

  NN(R)N · CPC title

• C08F2/005 Primary

  by addition of a scale inhibitor to the polymerisation medium · CPC title

• C08F2500/12

  Melt flow index or melt flow ratio · CPC title