Patent · US Active

Pre-polymerized catalyst components for the polymerization of olefins

US9593178B2 · kind B2 · utility

4Cited by

2References

5Claims

0Family size

Assignee

Basell Poliolefine Italia S.r.l. · IT

Inventors

Diego Brita · Ferrara, IT
Gianni Collina · Cassana, IT
Giampiero Morini · Ferrara, IT

Key dates

Filing date	Dec 11, 2012
Grant date	Mar 14, 2017
Priority date	—
Expiry date	Mar 1, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F10/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A pre-polymerized catalyst component for the polymerization of olefins endowed with high activity and morphological stability comprises a non-stereospecific solid catalyst component containing Ti, Mg and a halogen, and an amount of an ethylene/alpha-olefin block (co)polymer ranging from 0.1 up to 5 g per g of said solid catalyst component, said prepolymerized catalyst component being characterized by a mercury porosity, due to pores having radius up to 1 μm, ranging from 0.15 to 0.5 cm3/g and by the fact that at least 55% of said porosity is due to pores having pore radius up to 0.2 μm.

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