发明名称 |
METHOD FOR DECOMPOSITION AND RECOVERY OF POLYURETHANE RESIN |
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.
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申请公布号 |
US2002049258(A1) |
申请公布日期 |
2002.04.25 |
申请号 |
US19990411177 |
申请日期 |
1999.10.01 |
申请人 |
KODAMA KATSUHISA;MURAYAMA KOUICHI;KUMAKI TAKASHI |
发明人 |
KODAMA KATSUHISA;MURAYAMA KOUICHI;KUMAKI TAKASHI |
分类号 |
C08J11/14;C08J11/18;(IPC1-7):C08J11/14;C08J11/24;C08J11/28;C07C29/128;C0729/62 |
主分类号 |
C08J11/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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