Propylene based polymer composition

US12275837B2 · kind B2 · utility

Assignee

• Basell Poliolefine Italia S.r.l. · IT

Inventors

• Claudio Cavalieri · Ferrara, IT
• Paola Massari · Ferrara, IT
• Isabella Maria Vittoria Camurati · Ferrara, IT
• Roberto Pantaleoni · Ferrara, IT
• Gianni Collina · Cassana, IT
• Gianni Vitale · Ferrara, IT
• Marco Ciarafoni · Ferrara, IT
• Benedetta Gaddi · Ferrara, IT

Key dates

• Filing date: May 26, 2020
• Grant date: Apr 15, 2025
• Expiry date: Mar 24, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A propylene polymer composition made from or containing:a) from 15 wt % to 35 wt % of a propylene 1-hexene copolymer containing from 6.2 to 8.5% by weight, of 1-hexene derived units and having a Melt Flow Rate from 3.5 to 8.5 g/10 min;b) from 15 wt % to 35 wt % of a propylene 1-hexene copolymer containing from 10.4 wt % to 14.5 wt %, of 1-hexene derived units and having a Melt Flow Rate from 3.5 to 8.5 g/10 min; andc) from 38 wt % to 68 wt % of a propylene ethylene copolymer containing from 3.4 wt % to 5.7 wt % of ethylene derived units and having a Melt Flow Rate from 3.5 to 12.0 g/10 min,wherein the sum of the amount of a), b) and c) being 100.