# US 2017/0283531 A1 · Catalyst system for polymerisation of an olefin

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- Number: US 2017/0283531 A1
- Document ID: US20170283531A1
- Status: Published application
- Kind: A1
- Application number: 15/625,679
- Filed: 2017-06-16
- Published: 2017-10-05
- Earliest claimed: 2013-08-12
- Assignees: Saudi Basic Industries Corporation; Sabic Global Technologies B.V.
- Applicants: Saudi Basic Industries Corporation; Sabic Global Technologies B.V.
- Inventors: Martin Alexander Zuideveld; Jaiprakash Brijlal Sainani; Vimalkumar Mahendrabhai Patel
- Web page: https://patentgrep.com/patent/US20170283531A1

## CPC

- C08F 210/06: Propene
- C07F 7/025: {without C-silicon linkages}
- C08F 210/16: Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)

## Abstract

The present invention relates to a catalyst system comprising a procatalyst, a co-catalyst and an external electron donor, wherein the external electron donor comprises a compound having the structure according to Formula I: Si(L)n(OR11)4−n (Formula I), wherein, Si is a silicon atom with valency 4+; O is an oxygen atom with valency 2− and O is bonded to Si via the silicon-oxygen bond; n is 1, 2, 3 or 4; R11 is a selected from the group consisting of linear, branched and cyclic alkyl having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms; L is a group represented by Formula II wherein, L is bonded to the silicon atom via the nitrogen-silicon bond; L has a single substituent on the nitrogen atom, where this single substituent is an imine carbon atom; and X and Y are independently selected from the group consisting of a hydrogen atom; a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements; a linear, branched and cyclic alkyl having at most 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements and an aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements.

## Claims

### Claim 1

A polyolefin formed by the process comprising:
contacting an olefin with catalyst system to form the polyolefin, wherein the catalyst system comprises a Ziegler-Natta type procatalyst, a co-catalyst and at least one external electron donor, wherein the external electron donor comprises a compound having the structure according to Formula I:
Si(L)n(OR11)4−n (Formula I),
wherein,
Si is a silicon atom with valency 4+;
O is an oxygen atom with valency 2− and O is bonded to Si via a silicon-oxygen bond;
n is 1, 2, 3 or 4;
R11 is a selected from the group consisting of linear, branched and cyclic alkyl having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms;
L is a group represented by the following structure
wherein,
L is bonded to the silicon atom via a nitrogen-silicon bond;
L has a single substituent on the nitrogen atom, where this single substituent is an imine carbon atom; and
X and Y are each independently selected from the group consisting of:
a) a hydrogen atom;
b) a group comprising a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements through which X and Y are each independently bonded to the imine carbon atom of Formula II, wherein the heteroatom is substituted with a group consisting of a linear, branched and cyclic alkyl groups having at most 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements; and/or with an aromatic substituted and unsubstituted hydrocarbyl groups having 6 to 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements;
c) a linear, branched and cyclic alkyl having at most 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements; and
d) an aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms, optionally containing a heteroatom selected from group 13, 14, 15, 16 or 17 of the IUPAC Periodic Table of the Elements.

### Claim 2 (depends on 1)

The polyolefin according to claim 1, wherein L is guanidine, amidine or ketimide.

### Claim 3 (depends on 1)

The polyolefin according to claim 1, wherein R11 is an alkyl having at most 10 carbon atoms.

### Claim 4 (depends on 1)

The polyolefin accordingly to claim 1, wherein the polyolefin has

### Claim 5 (depends on 1)

The polyolefin according to claim 1, wherein the polyolefin is a propylene-based polymer.

### Claim 6 (depends on 1)

The polyolefin according to claim 1, wherein the polyolefin has a comonomer content of up to 10 mol %.

### Claim 7 (depends on 1)

The polyolefin according to claim 1, wherein the polyolefin has a comonomer content of 5 to 80 mol %.

### Claim 8 (depends on 7)

The polyolefin according to claim 7, wherein the comonomer content is 10 to 60 mol %.

### Claim 9 (depends on 1)

The polyolefin according to claim 1, wherein the polyolefin has a lump content between 2.8 and 11.7 wt %.

### Claim 10 (depends on 1)

The polyolefin according to claim 1, wherein the polyolefin has a lump content below 10 wt %.

### Claim 11 (depends on 10)

The polyolefin according to claim 10, wherein the polyolefin has a lump content below 4 wt %.

### Claim 12 (depends on 11)

The polyolefin according to claim 11, wherein the polyolefin has a lump content below 3 wt %.

### Claim 13 (depends on 1)

A shaped article comprising the polyolefin according to claim 1.

### Claim 14

A polyolefin formed with a lump content below 10 wt % in the reactor for making the polyolefin.