公开(公告)号：US5063253A

公开(公告)日：1991-11-05

申请号：US502346

申请日：1990-03-30

申请人： Peter Gansen ,  Rudi Wolfgramm ,  Klaus D. Wolf ,  John J. Lindsey

发明人： Peter Gansen ,  Rudi Wolfgramm ,  Klaus D. Wolf ,  John J. Lindsey

IPC分类号： C08J9/02 ,  C08G18/00 ,  C08G18/10 ,  C08G18/12 ,  C08G18/40 ,  C08G18/48 ,  C08G18/65 ,  C08G18/66

CPC分类号： C08G18/4804 ,  C08G18/10 ,  C08G18/12 ,  C08G18/4018 ,  C08G2101/0008 ,  C08G2101/0041 ,  C08G2350/00 ,  Y10S521/914

摘要： This invention relates to a process for the production of cold-setting flexible polyurethane foam useful for damping sound comprising reacting a polyisocyanate in the presence of water with (a) at least one polyether having an OH number of from 20 to 60 and containing at least two OH groups, wherein said polyether is based on 75 to 95% by weight propylene oxide and 5 to 25% by weight ethylene oxide; (b) a polyether or polyester having an OH number of from 150 to 400 and containing at least two OH groups; and (c) a polyether different from components (a) and (b) having an OH number of from 20 to 200 and containing at least two OH groups, wherein said polyether is based on propylene oxide and ethylene oxide and has an ethylene oxide content above 50% by weight based on the total amount of propylene oxide and ethylene oxide.

摘要翻译： 本发明涉及用于制造用于阻尼声音的冷定型柔性聚氨酯泡沫的方法，包括在水存在下使多异氰酸酯与（a）至少一种OH数为20至60的聚醚反应并至少包含至少 两个OH基团，其中所述聚醚基于75-95重量％的环氧丙烷和5-25重量％的环氧乙烷; （b）OH值为150-400并含有至少两个OH基团的聚醚或聚酯; 和（c）不同于OH数为20〜200且含有至少两个OH基的组分（a）和（b）的聚醚，其中所述聚醚是基于环氧丙烷和环氧乙烷并且具有环氧乙烷含量 基于环氧丙烷和环氧乙烷的总量高于50重量％。

公开(公告)号：US5166303A

公开(公告)日：1992-11-24

申请号：US513466

申请日：1990-04-19

申请人： Peter H. Markusch ,  Jeffrey F. Dormish ,  Hans G. Schmelzer ,  John J. Lindsey

发明人： Peter H. Markusch ,  Jeffrey F. Dormish ,  Hans G. Schmelzer ,  John J. Lindsey

IPC分类号： C08G18/08 ,  C08G18/10 ,  C09J175/04

CPC分类号： C09J175/04 ,  C08G18/0885 ,  C08G18/10 ,  C08G2101/0083 ,  C08G2170/60

摘要： The present invention is directed an expandable, non-sagging polyurethane composition prepared by mixing: a liquid polysocyanate with a liquid isocyanate reactive mixture. The isocyanate reactive mixture comprises i) one or more hydroxyl group containing compounds containing from 2 to 8 hydroxyl groups and having molecular weights of from about 1000 to about 6000, ii) one or more low molecular weight diols or triols having hydroxyl equivalent weights of about 200 or less, iii) one or more organic di- or polyamines, and iv) a relatively small amount of water.