Catalyst components for the polymerization of olefins

Patent metadata

Field	Value
Publication number	US-10011668-B2
Application number	US-201615560317-A
Country	US
Kind code	B2
Filing date	Mar 31, 2016
Priority date	Apr 1, 2015
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

Abstract

The present disclosure relates to a catalyst component for the polymerization of olefins comprising Mg. Ti and an electron donor such as mercaptoester derivatives of the general formula (I).

in which Z is selected from C, Si, O, N, S or P, with the proviso that the atoms O, S, P and N are not directly linked to either the carboxylic group or the sulfur atom of formula (I), the R 2 groups, equal to or different from each other, are selected from hydrogen or a C 1 -C 20 hydrocarbon radicals, optionally containing a heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more cycles, m is a number satisfying the valences of Z and n is an integer ranging from 1 to 10, X is O or S, Y is —OR 3 , —NR 4 R 5 ) or R 6 groups in which R 1 and R 3 are selected from C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, O, and Si, R 4 -R 5 groups, independently, are hydrogen or R 1 groups, and R 6 groups have the same composition as R 1 groups.

First claim

What is claimed is:

1. A solid catalyst component for the polymerization of olefins comprising Mg, Ti, Cl and at least one electron donor compound of the formula (I):

wherein Z is selected from C, Si, O, N, S or P, with the proviso that the atoms O, S, P and N are not directly linked to either the carboxylic group or the sulfur atom of formula (I): the R 2 groups, equal to or different from each other, are selected from hydrogen and C 1 -C 20 hydrocarbon radicals, optionally containing a heteroatom selected from halogen, P, S, N, O and Si, which are optionally fused together to form one or more cycles; m is a number satisfying the valences of Z; and n is an integer ranging from 1 to 10, X is O or S, Y is —OR 3 , —NR 4 R 5 or R 6 group in which R 1 and R 3 are selected from C 1 -C 15 hydrocarbon groups optionally containing a heteroatom selected from halogen, P, S, N, O, and Si; and R 4 -R 5 groups, independently, are selected from hydrogen and R 1 group, and R 6 group have the same composition as R 1 group.

2. The catalyst component of claim 1 , wherein Z is selected from C or Si.

3. The catalyst of claim 2 , wherein —(ZR 2 m ) n — is selected from the group consisting of aliphatic, alicyclic and aromatic bivalent radicals, optionally substituted with C 1 -C 15 hydrocarbon groups, and optionally containing heteroatoms selected from halogen, P, S, N, O and Si, and n is from 1 to 6 atoms.

4. The catalyst component of claim 3 , wherein the electron donor compound comprises the formula (II):

wherein X, Y and R 1 have the same composition defined in claim 1 , and R 8 -R 9 groups are independently hydrogen or C 1 -C 20 hydrocarbon radicals, optionally substituted with heteroatoms selected from halogen, P, S, N, O and Si, which are optionally fused together to form one or more cycles.

5. The catalyst of claim 4 , wherein X is O or S, and Y is an OR 3 group.

6. The catalyst of claim 5 , wherein at least one of R 8 -R 9 groups is different from hydrogen and selected from C 1 -C 10 alkyl groups.

7. The catalyst component of claim 3 , wherein the electron donor compound comprises the formula (III):

wherein Y and R 1 have the same composition defined in claim 1 , and R 10 -R 13 groups are independently hydrogen or C 1 -C 20 hydrocarbon radicals, optionally containing heteroatoms selected from halogen, P, S, N, O and Si, and are optionally fused together to form one or more cycles.

8. The solid catalyst component of claim 7 , wherein Y is an —OR 3 group in which R 3 is a C 1 -C 10 alkyl group.

9. The solid catalyst component of claim 7 , wherein Y is —NR 4 R 5 , R 10 to R 13 groups are independently hydrogen or a C 1 -C 5 alkyl radicals, and R 1 is a C 1 -C 5 linear alkyl group.

10. The solid catalyst component of claim 7 , wherein R 6 is selected from phenyl rings monosubstituted with a substituent belonging to hydrocarbon groups or halogen.

11. The solid catalyst component of claim 7 , wherein at least one of R 10 -R 11 groups comprises a C 1 -C 20 hydrocarbon radical.

12. The catalyst component of claim 3 , wherein the electron donor compound comprises the formula (IV):

wherein Y and R 1 have the same composition defined in claim 1 ; R 18 to R 19 groups, which are the same or different from each other, are selected from hydrogen or C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, O, and Si and are optionally fused together to form one or more cycles, n is an integer from 0 to 2 and R 14 -R 17 , independently, are selected from hydrogen, halogens or C 1 -C 15 hydrocarbon groups optionally containing heteroatoms selected from halogen, P, S, N, O or Si.

13. The catalyst component of claim 12 , wherein n is 0, Y is an —OR 3 group in which R 3 is a C 1 -C 10 alkyl group, R 1 is a C 1 -C 10 alkyl group and R 14 -R 17 are hydrogen.

14. A catalyst for the polymerization of olefins comprising the product of the reaction between:
the solid catalyst component of claim 1 ;
an alkylaluminum compound; and
optionally an external electron donor compound.

15. A process for the (co)polymerization of olefins comprising the formula CH 2 ═CHR′, wherein R′ is selected from hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, wherein the process is carried out in the presence of a catalyst system comprising the catalyst of claim 14 .

Assignees

• Basell Poliolefine Italia Srl

Inventors

• Mignogna Alessandro
• Kashulin Igor
• Morini Giampiero
• Nifant'Ev Ilya

Classifications

• C08F4/6498

  containing another heteroatom · CPC title

• C08F4/655

  with aluminium or compounds thereof · CPC title

• C08F4/6495

  containing nitrogen · CPC title

• C08F2410/01

  Additive used together with the catalyst, excluding compounds containing Al or B · CPC title

• C08F4/6455

  containing magnesium · CPC title