Moisture-curing, polyurethane hot-melt compositions.

摘要

A quick-setting, moisture-curing hot-melt polyurethane composition having a first polyether-based polyurethane prepolymer having a Tg above room temperature and a second polyurethane prepolymer with a Tg below room temperature. The first prepolymer is prepared from a low molecular weight polyether. Preferably the second prepolymer is also polyether based and prepared from a high molecular weight polyether.