HAFTKLEBSTOFF AUF BASIS VON POLYURETHAN, SYSTEME FÜR SOLCHE KLEBSTOFFE, DARAUS HERGESTELLTE GEGENSTÄNDE UND VERFAHREN ZUR HERSTELLUNG SOLCHER KLEBSTOFFE

摘要

Polyurethane-based pressure-sensitive adhesives (PSAs) of the invention comprise the reaction product of: a polyol component comprising at least one diol having a weight average molecular weight of at least about 2,000, wherein the at least one diol comprises less than about 8 weight % monols; an isocyanate-functional component; an optional reactive emulsifying compound; and an optional chain extending agent. The PSAs can be prepared from 100% solids, waterborne or solventborne systems.