PRODUCTION OF POROUS POLYURETHANE LAYERS

摘要

Described is the use of certain silicon-containing compounds in the production of porous polyurethane layers in order to improve the self-leveling properties of the reaction mass being converted into the polyurethane layer and/or in order to optimize the cells of the resulting polyurethane layer, preferably homogenize the cell structure across the entire resulting polyurethane layer, in particular during the production of synthetic leather or expanded sheets. The silicon-containing compounds satisfy formula (1).