METHOD OF TREATING POLYOL RECOVERED THROUGH DECOMPOSITION AND POLYOL RECOVERED THROUGH DECOMPOSITION

Title:

METHOD OF TREATING POLYOL RECOVERED THROUGH DECOMPOSITION AND POLYOL RECOVERED THROUGH DECOMPOSITION

Document Type and Number:

WIPO Patent Application WO/2001/019907

Kind Code:

A1

Abstract:

A method of treating a polyol recovered through the decomposition of a polyurethane resin; and a polyol recovered through decomposition which is obtained by a treatment by the method. The method of treatment comprises suitably using any of the following treatments: adding an organic dicarboxylic acid or its anhydride to an amine-containing polyol recovered through decomposition and removing the resultant precipitate; adding an isocyanate compound to an amine-containing polyol recovered through decomposition; adding an oxide compound to an amine-containing polyol recovered through decomposition; and adding urea to an amine-containing polyol recovered through decomposition.

Inventors:

KODAMA KATSUHISA (JP)
MURAYAMA KOUICHI (JP)
KUMAKI TAKASHI (JP)

Application Number:

PCT/JP2000/005748

Publication Date:

March 22, 2001

Filing Date:

August 25, 2000

Export Citation:

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Assignee:

TAKEDA CHEMICAL INDUSTRIES LTD (JP)
KOBE STEEL LTD (JP)
HONDA MOTOR CO LTD (JP)
KODAMA KATSUHISA (JP)
MURAYAMA KOUICHI (JP)
KUMAKI TAKASHI (JP)

International Classes:

C07C29/88; C08G18/32; C08G18/50; C08G18/83; C08G65/30; C08G65/332; C08G65/333; (IPC1-7): C08J11/26; C08G18/83

Foreign References:

JPS52139196A	1977-11-19
CA2242980A1	1999-02-26
JPH07224141A	1995-08-22
JPS5478798A	1979-06-23

Other References: