Process for the manufacture of molded articles on

专利名称：Process for the manufacture of molded

articles on the basis of polyadditionproducts of polyisocyanate, having ureagroups

发明人：Ganster, Otto, Dr.,Knipp, Ulrich, Dr.,Luckas,

Bruno

申请号：EP85102046申请日：19850225公开号：EP01275A3公开日：19870506

摘要：a new method for fierstellung of formkorpern based on harnstoffgruppenparticular polyurethanes with a closed surface layer and over 900 kg \\/ m3, which is dhe inclosed forms the implementation of organic polyisocyanaten,compounds with

isocyanatgruppen reactive hydrogen atoms of the molekulargewichtsbereichs from 400to 12000.if necessary, compounds with at least two reactive hydrogen atoms toisocyanatgruppen of molekulargewichtsbereichs 60 to 399 and, where appropriate, theusual support and commentszmitteln after reaktionsspritzgu\ßtechnik and theimplementation in the presence of water in an amount of at least 0.515 mol per molisocyanatgruppen with isocyanatkennzahl 70 and 125 performs and by maintaining apressure above 40 bar to ensurethat during the course of the reaction, carbon dioxideformed wholly or predominantly in the reaktionsgemisch or the resultingformk\örper is solved.

申请人：BAYER AG

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