Patent · US Active

Process for the preparation of impact resistant propylene polymer compositions

US9068028B2 · kind B2 · utility

6Cited by

8References

13Claims

0Family size

Assignee

Basell Poliolefine Italia S.r.l. · IT

Inventors

Gianni Collina · Cassana, IT
Marco Ciarafoni · Ferrara, IT
Ofelia Fusco · Ferrara, IT
Benedetta Gaddi · Ferrara, IT
Monica Galvan · Ferrara, IT
Giampiero Morini · Ferrara, IT
Roberto Pantaleoni · Ferrara, IT
Francesca Verrocchio · Bologna, IT

Key dates

Filing date	Jun 16, 2010
Grant date	Jun 30, 2015
Priority date	—
Expiry date	Oct 20, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F110/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the preparation of propylene polymer compositions carried out in the presence of a catalyst system comprising (a) a solid catalyst component having average particle size ranging from 15 to 80 μm comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 50 to 90% by mol with respect to the total amount of donors and selected from succinates and the other being selected from 1,3 diethers, (b) an aluminum alkyl and optionally (c) an external electron donor compound, and comprising the following steps:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.