Bibliographic Details
| Title: |
Catalyst component for the polymerization of olefins |
| Document Number: |
20100240845 |
| Publication Date: |
September 23, 2010 |
| Appl. No: |
12/308430 |
| Application Filed: |
June 07, 2007 |
| Abstract: |
Catalyst component for the polymerization of olefins comprising Mg, Ti, halogen and an electron donor is obtained by a batch process comprising: (A) A first step comprising reacting an adduct of formula MgCl2(ROH)n, where R is a C1-C10 alkyl group, and n is from 0.5 to 6, in a liquid medium comprising a titanium compound having at least a Ti—Cl bond at a temperature ranging from 0° C. to 80° C. and then removing the liquid medium; (B) A subsequent step comprising reacting the solid product obtained in (A) in a liquid medium comprising an electron donor ED selected from ethers, esters, ketones, silanes, amines, nitriles and amides, and a titanium compound having at least a Ti—Cl bond at a temperature higher than 80° C. and then, after removing the liquid medium; (C) A subsequent step comprising reacting the solid product coming from (B) with a liquid medium comprising a titanium compound having at least a Ti—Cl bond at a temperature higher than 80° C. |
| Inventors: |
Collina, Gianni (Ferrara, IT); Di Diego, Maria (Bologan, IT); Fusco, Ofelia (Ferrara, IT); Morini, Giampiero (Padova, IT); Vincenzi, Paolo (Ficarolo (RO), IT) |
| Assignees: |
Basell Poliolefine Italia s.r.l. (Milan, IT) |
| Claim: |
1-9. (canceled) |
| Claim: |
10. A catalyst component for polymerizing olefins comprising Mg, Ti, halogen and an electron donor obtained by a batch process comprising: reacting an adduct of formula MgCl2(ROH)n, wherein R is a C1-C10 alkyl group, and n is from 0.5 to 6, in a liquid medium comprising a titanium compound, the titanium compound comprising at least one Ti—Cl bond, at a temperature ranging from 0° C. to 80° C. and then removing the liquid medium to form a first solid product; subsequently reacting the first solid product in a liquid medium comprising an electron donor (ED) selected from ethers, esters, ketones, silanes, amines, nitriles and amides, and a titanium compound comprising at least one Ti—Cl bond at a temperature higher than 80° C. to form a second solid product, and then, after removing the liquid medium; subsequently reacting the second solid product with a liquid medium comprising a titanium compound comprising at least one Ti—Cl bond at a temperature higher than 80° C. |
| Claim: |
11. The catalyst component according to claim 10, wherein the titanium compound is of formula Ti(OR′)nCl4-n, wherein n is between 0 and 3; and R is an alkyl radical comprising 1-10 carbon atoms, or a COR′ group. |
| Claim: |
12. The catalyst component according to claim 11, wherein the titanium compound is TiCl4. |
| Claim: |
13. The catalyst component according to claim 10, wherein reacting the adduct of formula MgCl2(ROH)n with the titanium compound is carried out at a temperature ranging from 10 to 70° C. |
| Claim: |
14. The catalyst component according to claim 10, wherein the concentration of the adduct in the liquid medium is below 100 g/l. |
| Claim: |
15. The catalyst component according to claim 10, wherein the electron donor (ED) is selected from esters. |
| Claim: |
16. The catalyst component according to claim 15, wherein the (ED) is selected from the alkyl and aryl esters of mono or poly aromatic or aliphatic carboxylic acids. |
| Claim: |
17. A catalyst for polymerizing olefins obtained by reacting a catalyst component with at least one organo-Al compound, wherein the catalyst component comprises Mg, Ti, halogen and an electron donor, and is obtained by a batch process comprising: reacting an adduct of formula MgCl2(ROH)n, wherein R is a C1-C10 alkyl group, and n is from 0.5 to 6, in a liquid medium comprising a titanium compound, the titanium compound comprising at least one Ti—Cl bond, at a temperature ranging from 0° C. to 80° C. and then removing the liquid medium to form a first solid product; subsequently reacting the first solid product in a liquid medium comprising an electron donor (ED) selected from ethers, esters, ketones, silanes, amines, nitriles and amides, and a titanium compound comprising at least one Ti—Cl bond at a temperature higher than 80° C. to form a second solid product, and then, after removing the liquid medium; subsequently reacting the second solid product with a liquid medium comprising a titanium compound comprising at least one Ti—Cl bond at a temperature higher than 80° C. |
| Claim: |
18. A process for polymerizing olefins carried out in presence of a catalyst obtained by reacting a catalyst component with at least one organo-Al compound, wherein the catalyst component comprises Mg, Ti, halogen and an electron donor, and is obtained by a batch process comprising: reacting an adduct of formula MgCl2(ROH)n, wherein R is a C1-C10 alkyl group, and n is from 0.5 to 6, in a liquid medium comprising a titanium compound, the titanium compound comprising at least one Ti—Cl bond, at a temperature ranging from 0° C. to 80° C. and then removing the liquid medium to form a first solid product; subsequently reacting the first solid product in a liquid medium comprising an electron donor (ED) selected from ethers, esters, ketones, silanes, amines, nitriles and amides, and a titanium compound comprising at least one Ti—Cl bond at a temperature higher than 80° C. to form a second solid product, and then, after removing the liquid medium; subsequently reacting the second solid product with a liquid medium comprising a titanium compound comprising at least one Ti—Cl bond at a temperature higher than 80° C. |
| Current U.S. Class: |
526/107 |
| Current International Class: |
08; 01 |
| Accession Number: |
edspap.20100240845 |
| Database: |
USPTO Patent Applications |
