公开(公告)号：US06489373B2

公开(公告)日：2002-12-03

申请号：US09411177

申请日：1999-10-01

申请人： Katsuhisa Kodama ,  Kouichi Murayama ,  Takashi Kumaki

发明人： Katsuhisa Kodama ,  Kouichi Murayama ,  Takashi Kumaki

IPC分类号： C08J1114

CPC分类号： C08J11/18 ,  C08J11/14 ,  C08J2375/04 ,  Y02P20/582 ,  Y02W30/704 ,  Y02W30/706

摘要： The present invention provides a method of recovering a polyamine compound and/or a polyol compound useful for starting materials of polyurethane resin in an industrially advantageous manner by first dissolving the polyurethane resin such as polyurethane foams discharged in a large amount as industrial wastes in a solubilizing agent containing a polyamine compound, a low molecular glycol or an amino alcohol, hydrolyzing the resulting solution with liquid water at 200 to 320° C., then recovering the polyamino compound and/or polyol compound thus formed.

摘要翻译： 本发明提供一种以工业上有利的方式回收可用于起始原料的多胺化合物和/或多元醇化合物的方法，首先将大量排出的聚氨酯泡沫等聚氨酯树脂首先溶解在溶解性 含有多胺化合物，低分子量二醇或氨基醇的试剂，用液态水在200〜320℃水解所得溶液，然后回收由此形成的聚氨基化合物和/或多元醇化合物。

公开(公告)号：US06515036B2

公开(公告)日：2003-02-04

申请号：US09822202

申请日：2001-04-02

申请人： Koichi Murayama ,  Katsuhisa Kodama ,  Takashi Kumaki

发明人： Koichi Murayama ,  Katsuhisa Kodama ,  Takashi Kumaki

IPC分类号： C08J1114

CPC分类号： C08J11/28 ,  C08J2375/04 ,  Y02W30/706

摘要： A method of recovering a decomposition product from a polyurethane, the method comprising the steps of thermally decomposing a polyurethane into a liquid containing a polyol and a urea compound which is soluble in the polyol, and solids containing a urea compound which is insoluble in the liquid in the presence of a polyamine compound at a temperature of 120 to 250° C.; removing the solids; hydrolyzing the residue with water retained at a high temperature of 200 to 320° C. and a high pressure; and recovering the resulting polyamine and/or polyol.

摘要翻译： 一种从聚氨酯中回收分解产物的方法，该方法包括以下步骤：将聚氨酯热分解成含有可溶于多元醇的多元醇和脲化合物的液体，以及含有不溶于液体的尿素化合物的固体 在多胺化合物存在下，在120-250℃的温度下进行。 去除固体; 用保持在200〜320℃的高温和高压的水进行水解; 并回收得到的多胺和/或多元醇。