DRUCKEMPFINDLICHES KLEBE-BAND ODER -FILM, SOWIE VERFAHREN ZUR HERSTELLUNG DERSELBEN

摘要

The present invention is a pressure-sensitive adhesive tape or sheet prepared by laminating a pressure-sensitive adhesive layer onto one side of an urethane resin layer consisting of 100 weight parts of a polyol component and A weight parts of a polyisocyanate component with a distance between cross-links (weight average molecular weight/number of isocyanate groups) of 220-570, wherein the aforementioned A is represented by the following equation A = 100aX/Y (in this equation, a is a constant 0.067-0.135, X is the hydroxide value of the aforementioned polyol component, and Y is the weight percent concentration of isocyanate groups in the polyisocyanate component), and, at 5 DEG C and 35 DEG C, the strength at a 2% elongation is 0.40-2.20 Kg/15mm-width and the breaking elongation is 50-300%.