NOVEL WEATHER-RESISTANT POLYURETHANE CASTING COMPOUNDS WITH AN IMPROVED LIGHT RESISTANCE, A PROCESS FOR PREPARATION THEREOF AND USE THEREOF

摘要

PURPOSE: A novel weather-resistant polyurethane casting compound is provided to ensure weather resistance and light resistance while avoiding the bad influence on an environment.;CONSTITUTION: A novel weather-resistant polyurethane casting compound is obtained by the steps of: reacting 100 parts by weight of at least one kind of polyether polyol with 10-80 parts by weight of at least one kind of di- or poly-isocyanates in a 0.5-10% solution of 0.05-5 parts by weight of iron(III) acetylacetonate in the presence or absence of water and/or at least one kind chain extender, wherein the 0.5-10% solution is dissolved in at least one kind of diamine of NHR-R'-NHR" or at least one kind of monofunctional polyether polyol.;COPYRIGHT KIPO 2012