# US 2022/0033539 A1 · Catalyst components for the polymerization of olefins

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- Number: US 2022/0033539 A1
- Document ID: US20220033539A1
- Status: Published application
- Kind: A1
- Application number: 17/312,264
- Filed: 2019-12-03
- Published: 2022-02-03
- Earliest claimed: 2018-12-14
- Assignees: Basell Poliolefine Italia S.r.l.
- Applicants: Basell Poliolefine Italia S.R.L.
- Inventors: ALESSANDRO MIGNOGA; DARIO LIGUORI; GIAMPIERO MORINI; GIANNI VITALE
- Web page: https://patentgrep.com/patent/US20220033539A1

## CPC

- C08F 4/651: Pretreating with non-metals or metal-free compounds
- C08F 110/06: Propene
- C08F 4/65912: {in combination with an organoaluminium compound}
- C08F 10/06: Propene
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

## Abstract

A solid catalyst component for the polymerization of olefins made from or containing Mg, Ti, Cl and at least an electron donor compound which is the reaction product obtained by bringing into contact a Mg compound and a Ti compound having at least a Ti-halogen bond with an electron donor selected from diphenol derivatives.

## Claims

### Claim 1

A solid catalyst component for the polymerization of olefins comprising Mg, Ti, Cl and at least an electron donor compound which is the reaction product obtained by bringing into contact a Mg compound and a Ti compound having at least a Ti-halogen bond with an electron donor selected from diphenol derivatives of formula (I)
wherein X is a chlorine substituted phenyl group, and Y is selected from hydrogen or 10; the R groups, equal to or different from each other, are selected from hydrogen, halogen and C1-C15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more cycles, and Rr is a C1-C5 aliphatic group.

### Claim 2 (depends on 1)

The solid catalyst component according to claim 1, wherein R1 groups are selected from the group consisting of hydrogen and linear C1-C5 alkyl groups.

### Claim 3 (depends on 2)

The solid catalyst component according to claim 2, wherein R1 groups are selected from the group consisting of hydrogen and methyl.

### Claim 4 (depends on 1)

The solid catalyst component according to claim 1, wherein X is a chlorine monosubstituted phenyl group.

### Claim 5 (depends on 4)

The solid catalyst component according to claim 4, wherein the chlorine atom is in ortho position.

### Claim 6 (depends on 3)

The solid catalyst component according to claim 3, wherein which R1 is hydrogen and the chlorine is in ortho position.

### Claim 7 (depends on 1)

The solid catalyst component according to claim 1, wherein X is a phenyl group containing two or more chlorines.

### Claim 8 (depends on 7)

The solid catalyst component according to claim 7, wherein at least one of the chlorines is in ortho position and the remaining chlorine(s) is(are) in meta or para position.

### Claim 9 (depends on 1)

The solid catalyst component according to claim 1, wherein at least one of the R groups is different from hydrogen and selected from halogen or C1-C15 hydrocarbon groups.

### Claim 10 (depends on 9)

The solid catalyst component according to claim 9, wherein at least 4 of the R groups are different from hydrogen.

### Claim 11 (depends on 5)

The solid catalyst component according to claim 5, wherein R groups different from hydrogen are selected from C1-C10 alkyl groups.

### Claim 12 (depends on 1)

The solid catalyst component according to claim 1 further comprising an additional electron donor compound selected from esters of benzoic acids, and wherein the esters of benzoic acid are optionally substituted with halogen or C1-C15 hydrocarbon groups on the phenyl ring.

### Claim 13 (depends on 1)

A catalyst for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising the product obtained by contacting:
(i) the solid catalyst component according to claim 1;
(ii) an alkylaluminum compound and optionally,
(iii) an external electron donor compound.

### Claim 14 (depends on 13)

The catalyst according to claim 13, wherein the external donor compounds are selected from the group consisting of silicon compounds of formula (R7)a(R8)bSi(OR9)c, where a and b are integers from 0 to 2, c is an integer from 1 to 4 and the sum (a+b+c) is 4; R7, R8, and R9, are radicals with 1-18 carbon atoms optionally containing heteroatoms.

### Claim 15 (depends on 1)

A process for the polymerization or copolymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, carried out in the presence of a catalyst system according claim 1.