| 摘要 |
A polyurethane composition comprises 3-35 wt.% polymeric composition comprising polymer(s), and 0.5-50 wt.% thermoset(s) prepared by reaction of polymer matrix of starting component containing amino groups, and starting component(s) containing isocyanate groups; 15-45 wt.% amorphous and/or crystalline polyester; 7-25 wt.% curing agent(s) based on blocked polyisocyanates, isocyanurates, and/or uretediones; and 1-50 wt.% auxiliaries and additives. A polyurethane composition comprises 3-35 wt.% polymeric composition comprising polymer(s), and 0.5-50 wt.% thermoset(s) prepared by the reaction of polymer matrix of starting component containing amino groups, and starting component(s) containing isocyanate groups, having a functionality of at least2, and a starting component(s) having a functionality of at least2 present at 0.5-100 wt.%; 15-45 wt.% amorphous and/or crystalline polyester having a hydroxyl (OH) number of 10-250 mg potassium hydroxide (KOH)/g; 7-25 wt.% curing agent(s) based on blocked polyisocyanates, isocyanurates, and/or uretediones having a functionality of at least1.7; and 1-50 wt.% auxiliaries and additives; having 0.6-1.2 isocyanate groups/hydroxyl groups.
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