THERMOSETTING REACTION MIXTURES, A PROCESS FOR THEIR PRODUCTION AND THE USE THEREOF FOR PRODUCTION OF MOLDINGS AND MOLDING MATERIAL

摘要

Mo3790 LeA 28,624 THERMOSETTING REACTION MIXTURES, PROCESS FOR THEIR PRODUCTION AND THE USE THEREOF FOR PRODUCTION OF MOLDINGS AND MOLDING MATERIAL It is now possible to provide reaction resin mixtures based on organic polyisocyanates and organic polyepoxides that can be hot-cured to high-quality plastics having isocyanurate and oxazolidinone groups that are largely storage-stable at room temperature, without their curing having to be stopped at any time, so that the systems exist in an intermediate "B-stage" (i.e., in a state that is solid at ambient or moderately elevated temperature but still fusible), so that at any later time, for example after pulverizing or dissolving in a suitable solvent, they can be converted by shaping and further thermal action to their ultimate, crosslinked and no longer fusible final state. Le A 28 624 - Foreign Countries