Patent Number: 8,575,244

Title: Solvents in the preparation of polyuretherane dispersions

Abstract: The present invention relates to substituted N-(cyclo)alkylpyrrolidones as solvents for use in processes for preparing polyurethane dispersions.

Inventors: Buelow; Gerd (Maxford, DE), Dargatz; Manfred (Worms, DE), Haeberle; Karl (Speyer, DE), Hechavarria Fonseca; Maria Teresa (Buerstadt, DE), Ott; Karl (Plankstadt, DE), Salgado-Valle; Juan (Hospitalet de Llobregat, ES), Wabnitz; Tobias (Mannheim, DE)

Assignee: BASF SE

International Classification: C08K 5/3415 (20060101); B05D 5/10 (20060101)

Expiration Date: 1/05/12017