INTERNAL RELEASE AGENTS FOR POLYISOCYANATE ADDITION POLYMERIZATION, THEIR USE IN THE PREPARATION OF CELLULAR, MICROCELLULAR, AND NONCELLULAR POLYURETHANE-POLYUREA MOLDED PARTS HAVING IMPROVED DEMOLDING PROPERTIES

摘要

INTERNAL RELEASE AGENTS FOR POLYISOCYANATE ADDITIONPOLYMERIZATION, THEIR USE IN THE PREPARATION OFCELLULAR, MICROCELLULAR, AND NONCELLULAR POLYURETHANE-POLYUREA MOLDED PARTS HAVING IMPROVED DEMOLDING PROPERTIESAbstract of the DisclosureThe invention relates to a process for thepreparation of cellular, microcellular, and noncelluarpolyurethane polyurea molded parts with improved demoldingcharacteristics through the reaction injection moldingtechnique wherein unique internal mold release agents areused which are esters and/or amides prepared by reacting amixture of montanic acid and a carboxylic acid having ten ormore carbon atoms with a polyol, alkanolamine, or polyamine.