Porous polyisocyanate polyaddition products

US8067480B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Daniel Schmidt · Tewksbury, US
• Volker Schädler · Mannheim, DE

Key dates

• Filing date: May 30, 2006
• Grant date: Nov 29, 2011
• Expiry date: Aug 25, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2110/0091
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for producing porous polyisocyanate polyaddition products by reacting (a) isocyanates with (b) compounds which are reactive toward isocyanates in the presence of (f) solvent, wherein compounds having a functionality toward isocyanates of at least 6 and a molecular weight of at least 1000 g/mol are used as (b) compounds which are reactive toward isocyanates.