Importance

Loading Importance Indicators...

Abstract

A press cover for a press roll or a transport belt has at least one polyurethane-containing layer. The polyurethane is obtainable by reaction of i) a polyol component, ii) an isocyanate component, and iii) a component containing at least one crosslinker. The polyol component is composed of mutually different structural units having the general formula —O—R¹—X—R²—O— in which all of R¹ and R² independently of one another are identical or different and are linear or branched C₁-C₂₀ alkylene groups. Groups X are identical or different and are selected from bond, O, C(O)—O, and O—C(O)—O. At least 70 wt % of the structural units meet the following criteria: a) at least 80% of X are O—C(O)—O and the remainder are O or C(O)—O, and b) the average chain length of R¹ and R² is 8 or more carbon atoms, and c) at least 50% of R¹ and R² are independently of one another a linear or branched C₈-C₁₂ alkylene group.

Loading the Abstract Image...

First Claim