| abstract |
Tacky, biodegradable, chemical reaction product formed from • at least one or more aliphatic polyester-polyols having a hydroxyl functionality of between greater than two and less than four each • at least one or more aliphatic polyester-polyols having a hydroxyl functionality of between less than or equal to two and greater than one each • at least one or more each doubly hydroxyl-functionalized chain extenders having a molecular weight of less than or equal to 200 g/mol each, and • at least one or more aliphatic diisocyanates, characterized in that the ratio of the total number of isocyanate groups to the total number of hydroxyl groups in the compounds introduced for the chemical reaction to form the tacky, biodegradable, chemical reaction product is between greater than or equal to 0.4 and less than 1.0, preferably between greater than or equal to 0.6 and less than or equal to 0.9. |