Pressure-sensitive adhesive tape or sheet and process for producing the same

A pressure-sensitive adhesive tape or sheet prepared by laminating one after another a 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 average molecular weight/number of isocyanate groups) of 220-570, an olefin-based resin layer, and a pressure-sensitive adhesive layer, 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° C. and 35° C., the strength at a 2% elongation is 0.40-2.20 Kg/15 mm-width and the breaking elongation is 50-300%,
• wherein the polyol component is acryl polyol with a glass transition temperature (Tg) of 0-100° C. and a hydroxide group value of 20-150,
• said olefin-based resin layer being a non-chlorinated olefin-based resin.