Method for applying a material containing a meltable polymer with free NCO groups

US11247388B2 · kind B2 · utility

Assignee

• Covestro Intellectual Property GmbH & Co. KG · DE

Inventors

• Dirk Achten · Leverkusen, DE
• Thomas Buesgen · Leverkusen, DE
• Joerg Tillack · Solingen, DE
• Fabian Schuster · Leverkusen, DE
• Ralf Rott · Leverkusen, DE
• Nicolas Degiorgio · Krefeld, DE
• Jonas Kuenzel · Leverkusen, DE
• Joerg Buechner · Bensberg, DE
• Wolfgang Arndt · Dormagen, DE
• Martin Melchiors · Leverkusen, DE
• Harald Kraus · Leverkusen, DE

Key dates

• Filing date: Jul 12, 2019
• Grant date: Feb 15, 2022
• Expiry date: Jul 12, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2170/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A method of applying a material comprising a fusible polymer comprises the step of: The fusible polymer has the following properties: wherein the filament, during the application process, has an application temperature of ≥100° C. above the melting point of the fusible polymer for ≤20 minutes.There are still free NCO groups in the material including the fusible polymer.