Stable dispersions of polyhydrazodicarbonamides us

专利名称：Stable dispersions of

polyhydrazodicarbonamides useful in thepreparation of polyurethane productshaving improved load-bearing capacity

发明人：Lucarelli, Michael A.,Keegan, Richard

E.,Koshute, Mark A.,Freitag, Hans-Albrecht,Dr.,Avar, Geza, Dr.

申请号：EP90124516.7申请日：19901218公开号：EP0443157B1公开日：19940907

摘要：This invention relates to a process for the preparation of stable dispersions ofhydroxyl-containing polyhydrazodicarbonamides in a hydroxyl-containing compound. Thedispersions are prepared by the reaction of organic isocyanates, isocyanate-reactivecompounds having a molecular weight in the range from 400 to 10,000, relatively lowmolecular weight isocyanate-reactive compounds, and hydrazines or hydrazides. Thisinvention further relates to the dispersions prepared by said process, the use of thedispersions to prepare polyurethane foams having exceptional hardness, and the foamsprepared thereby.

申请人：MILES INC

地址：US

国籍：US

代理机构：Müller, Gerhard, Dr.

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