Patent ID: 7300996
Filing Date: 2007-11-27
Classification: B32B,C08G,C09J,Y10T

Abstract:
1. A one-component, moisture-curing polyurethane hot melt adhesive comprising at least one reaction product with reactive NCO groups produced by reaction of a) 5 to 15 weight percent of at least one di- or polyisocyanate; b) 20 to 40 weight percent difunctional polypropylene glycol having a molecular weight of from 2,000 to 6,000; c) 15 to 30 weight percent of at least one crystalline or partly crystalline polyester-polyol; d) 10 to 35 weight percent of at least one low molecular weight polymer obtained by polymerization of one or more olefinically unsaturated monomers; e) 2 to 8 weight percent of a polypropylene glycol or alkylene diol having a molecular weight of from 200 to 600; and f) 2 to 8 weight percent of a tackifying resin.