Production of polyurethane foam

US12122890B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Michael Wagner · Dortmund, DE
• Carsten Schiller · Mülheim an der Ruhr, DE
• Michael Ferenz · Essen, DE
• Sarah Otto · Essen, DE
• Sabine Kömmelt · Darmstadt, DE

Key dates

• Filing date: Aug 2, 2021
• Grant date: Oct 22, 2024
• Expiry date: May 28, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/03
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Compositions for producing a rigid polyurethane foam are described, comprising at least one isocyanate component, a polyol component, optionally a catalyst which catalyzes the formation of a urethane or isocyanurate bond, wherein the composition has hydrocarbons having 3, 4 or 5 carbon atoms, hydrofluorocarbons, hydrofluoroolefins (HFO), hydrohaloolefins, oxygen-containing blowing agents and/or chlorohydrocarbons as blowing agent, and also comprises acrylate and/or methacrylate copolymers as foam stabilizers.