Catalyst components for the polymerization of olefins

Patent metadata

Field	Value
Publication number	US-10221256-B2
Application number	US-201615574807-A
Country	US
Kind code	B2
Filing date	May 18, 2016
Priority date	May 19, 2015
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

A solid catalyst component for the polymerization of olefins, made from or containing Mg, Ti and an electron donor of formula (I)

where independently, Z is a bridging group, the R 2 groups, equal to or different from each other, are hydrogen or a C 1 -C 20 hydrocarbon radicals, m is a number satisfying the valences of Z and n is an integer ranging from 1 to 10, R 1 and R 4 are selected from C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, O; and R 3 group, is hydrogen or R 4 groups.

First claim

What is claimed is:

1. A solid catalyst component for the polymerization of olefins comprising:
(i) Mg,
(ii) Ti and
(iii) an electron donor of formula (I)

where independently, Z is selected from C, Si, Ge, O, N, S or P with the proviso that the atoms O, S, and N are not directly linked to either the ester oxygen or the carbamic nitrogen of the formula (I), the R 2 groups, equal to or different from each other, are hydrogen or a C 1 -C 20 hydrocarbon radicals, optionally containing a heteroatom selected from halogen, P, S, N, O and Si, and wherein the R 2 groups 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, R 1 and R 4 are selected from C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, and O; and R 3 group is selected from hydrogen C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, and O.

2. The solid catalyst component according to claim 1 , wherein the (ZR 2 m ) n group of formula (I) is selected from the group consisting of aliphatic, alicyclic and aromatic bivalent radicals, optionally substituted with C 1 -C 15 hydrocarbon groups and/or with heteroatoms selected from halogen, P, S, N, O and Si, in which n ranges from 1 to 6 atoms.

3. The solid catalyst component according to claim 2 , wherein the (ZR 2 m ) n group is an aliphatic or alicyclic bridging group in which n ranges from 1-6 carbon atoms.

4. The solid catalyst component according to claim 1 , wherein R 1 groups are selected from aryl and alkylaryl groups.

5. The solid catalyst component according to claim 4 , wherein R 1 groups are selected from phenyl groups.

6. The solid catalyst component according to claim 5 , wherein the phenyl groups are substituted with halogen and/or C 1 -C 5 alkyl groups.

7. The solid catalyst component according to claim 1 , wherein R 3 groups are independently selected from hydrogen or C 1 -C 10 alkyl groups.

8. The solid catalyst component according to claim 7 , wherein R 3 groups are independently selected from C 1 -C 5 alkyl groups.

9. The solid catalyst component according to claim 1 , wherein the R 4 groups are selected from C 1 -C 10 alkyl groups.

10. The solid catalyst component according to claim 9 , wherein the R 4 groups are selected from C 1 -C 5 alkyl groups.

11. The solid catalyst component according to claim 1 , wherein the electron donor has the formula (III)

in which in which R1 groups are phenyl groups optionally substituted with halogen and/or C 1 -C 5 alkyl groups, R 3 is hydrogen or C 1 -C 20 hydrocarbon group, and R 4 is a C 1 -C 10 alkyl group.

12. The solid catalyst component according to claim 11 , wherein R 3 is hydrogen or methyl and R 4 is a C 1 -C 5 alkyl group.

13. A catalyst for the polymerization of olefins comprising:
a product of a reaction between:
(i) a solid catalyst component comprising
(a) Mg,
(b) Ti and
(c) an electron donor of formula (I)

where independently, Z is selected from C, Si, Ge, O, N, S or P with the proviso that the atoms O, S, and N are not directly linked to either the ester oxygen or the carbamic nitrogen of the formula (I), the R 2 groups, equal to or different from each other, are hydrogen or a C 1 -C 20 hydrocarbon radicals, optionally containing a heteroatom selected from halogen, P, S, N, O and Si, and wherein the R 2 groups 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, R 1 and R 4 are selected from C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, and O; and R 3 group is selected from hydrogen, C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, and O,
(ii) an alkylaluminum compound and optionally, (iii) an external electron donor compound.

14. The catalyst according to claim 13 further comprising an external electron donor compound.

15. A process for the polymerization or copoymerization of olefins comprising:
(A) polymerizing olefins having the formula CH 2 ═CHR, wherein R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms in the presence of a catalyst system, wherein the catalyst system comprises a product of a reaction between:
i. the solid catalyst component comprising
(a) Mg,
(b) Ti and
(c) an electron donor of formula (I)

where independently, Z is selected from C, Si, Ge, O, N, S or P with the proviso that the atoms O, S, and N are not directly linked to either the ester oxygen or the carbamic nitrogen of the formula (I), the R 2 groups, equal to or different from each other, are hydrogen or a C 1 -C 20 hydrocarbon radicals, optionally containing a heteroatom selected from halogen, P, S, N, O and Si, and wherein the R 2 groups 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, R 1 and R 4 are selected from C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, and O; and R 3 group is selected from hydrogen, C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N, and O,
ii. an alkylaluminum compound and, iii. optionally an external donor compound.

Assignees

• Basell Poliolefine Italia Srl

Inventors

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

Classifications

• C08F4/6435

  containing magnesium · CPC title

• C08F4/65912 Primary

  in combination with an organoaluminium compound · CPC title

• C08F2500/15

  Isotactic · CPC title

• C08F4/651 Primary

  Pretreating with non-metals or metal-free compounds · CPC title

• C08F2500/12

  Melt flow index or melt flow ratio · CPC title