Method for producing a polyisocyanate polymer and a polyisocyanurate plastic

US11319402B2 · kind B2 · utility

Assignee

• Covestro Intellectual Property GmbH & Co. KG · DE

Inventors

• Heiko Hocke · Shanghai, CN
• Mathias Matner · Neuss, DE
• Dirk Achten · Leverkusen, DE
• Hans-Josef Laas · Odenthal, DE
• Dieter Mager · Leverkusen, DE

Key dates

• Filing date: May 13, 2019
• Grant date: May 3, 2022
• Expiry date: May 13, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2379/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing a polyisocyanate polymer and to the polyisocyanate polymer obtainable from the method and to the use thereof as part of a two-stage method for producing a polyisocyanurate plastic, in particular for producing coatings, films, semi-finished products or molded parts containing such a polyisocyanurate plastic.