Patent ID: 6809172
Filing Date: 2004-10-26
Classification: C08G

Abstract:
Polyester polyols with an average equivalent weight in the range from 200 to 4,000, consisting essentially of:a) &agr;,&ohgr;-dicarboxylic acids or derivatives thereof, with b) butane 1,4-diol, c) hexane 1,6-diol, d) propane 1,3-diol or pentane 1,5-diol or a mixture thereof, and e) polyols having 3 to 6 hydroxyl groups, wherein component b) is used in amounts from 65 mole % to 85 mole %, component c) in amounts from 7 mole % to 25 mole %, component d) in amounts from 7 mole % to 25 mole % and component e) in amounts from 0.2 mole % to 2.5 mole %, based on the total amount of components b), c), d), and e).