Catalyst components for the polymerization of olefins

Patent metadata

Field	Value
Publication number	US-10005860-B2
Application number	US-201715428940-A
Country	US
Kind code	B2
Filing date	Feb 9, 2017
Priority date	May 17, 2013
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I)

In which X and Y are selected from, R 1 , and —OR 1 and —NR 2 , B is oxygen or sulphur S is sulphur, R 1 is selected from C 1 -C 15 hydrocarbon groups, optionally contain a heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more cycles, R is hydrogen or R 1 and A is a bivalent bridging group with chain length between the two bridging bonds being 1-10 atoms.

First claim

What is claimed is:

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

in which B is oxygen or sulphur S is sulfur, R 4 -R 7 groups, equal to or different from each other, are hydrogen or C 1 -C 15 hydrocarbon groups, optionally containing an heteroatom selected from halogen, P, S, N and Si, and R 8 , equal to or different from each other, are selected from C 1 -C 15 hydrocarbon groups which can be optionally linked to form a cycle and n is an integer from 0 to 5.

2. The solid catalyst component of claim 1 in which B is sulfur and R 4 and R 7 are selected from C 1 -C 10 alkyl groups.

3. The solid catalyst component of claim 2 in which R 4 and R 7 are selected from from C 1 -C 5 alkyl groups and R 5 and R 6 are selected from hydrogen or C 1 -C 10 alkyl groups.

4. The solid catalyst component of claim 1 in which R 8 groups are independently selected from C 1 -C 10 alkyl groups.

5. The solid catalyst component of claim 4 in which R 8 groups are independently selected from C 1 -C 5 alkyl groups.

6. The solid catalyst component of claim 5 in which R 8 groups are independently selected from the group consisting of methyl, ethyl, n-propyl and n-butyl.

7. The solid catalyst component of claim 1 in which the index n ranges from 1 to 3.

8. The solid catalyst component of claim 7 in which the index n is 1.

9. The solid catalyst component of claim 1 in which the substituent R 8 is in position 4 of the benzoate ring.

10. 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.

11. A process for the (co)polymerization of olefins CH 2 ═CHR′, in which R′ is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, wherein the catalyst of claim 10 is contacted with the olefins in the gas phase in one or more fluidized or mechanically agitated bed reactors.

Assignees

• Basell Poliolefine Italia Srl

Inventors

• Mignogna Alessandro
• Chevalier Reynald
• Kashulin Igor
• Nifant'Ev Ilya
• Morini Giampiero
• Schneider Martin

Classifications

• C08F4/651

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

• C08F110/06 Primary

  Propene · CPC title

• C07C333/04

  having nitrogen atoms of thiocarbamic groups bound to hydrogen atoms or to acyclic carbon atoms · CPC title

• C08F2500/15

  Isotactic · CPC title

• C07C329/10

  having sulfur atoms of thiocarbonic groups bound to carbon atoms of six-membered aromatic rings · CPC title