Producing rigid polymer foams

US9815931B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Frank Prissok · Bohmte, DE
• Michael Harms · Bohmte, DE

Key dates

• Filing date: Feb 21, 2013
• Grant date: Nov 14, 2017
• Expiry date: Feb 21, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2110/0008
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for producing a rigid polymer foam comprises reacting components A to C in the presence of component D or an isocyanate-functional prepolymer of components A and B with component C in the presence of component D, the total amount of which is 100 wt %,