C2C3 random copolymer

US11485845B2 · kind B2 · utility

Assignee

• Borealis AG · AT

Inventors

• Jingbo Wang · Linz, AT
• Markus Gahleitner · Ansfelden, AT
• Klaus Bernreitner · Linz, AT
• Pauli Leskinen · Porvoo, FI
• Cornelia Tranninger · Linz, AT

Key dates

• Filing date: May 20, 2020
• Grant date: Nov 1, 2022
• Expiry date: May 20, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2314/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

New C2C3 random copolymers, which combine low sealing initiation temperature (SIT), high hot-tack, low C6-solubles, good optical properties and an improved stiffness/impact balance, which are particularly suited for preparing blown films. The present invention is furthermore related to the manufacture of said copolymers and to their use, as well as to the blown films comprising such C2C3 random copolymers.