Patent · US Active

Catalyst

US9475890B2 · kind B2 · utility

3Cited by

2References

18Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Kalle Kallio · Porvoo, FI
Marja Mustonen · Merijärvi, FI
Lauri Huhtanen · Loviisa, FI
John Severn · Eindhoven, NL
Pascal Castro · Helsinki, FI
Ville Virkkunen · Porvoo, FI
Anu-Leena Hongell · Vantaa, FI
Ismo Lehtiniemi · Helsinki, FI

Key dates

Filing date	Oct 17, 2013
Grant date	Oct 25, 2016
Priority date	—
Expiry date	Oct 17, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2420/07
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A catalyst comprising (i) a metallocene complex of a group (IV) metal said metallocene comprising at least two cyclopentadienyl type ligands; (ii) a boron cocatalyst; and (iii) an aluminoxane cocatalyst; said catalyst being in solid form, preferably in solid particulate form, and being free from an external carrier.

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