| 摘要 |
A process for decomposing a polyurethane foam comprising heating the polyurethane foam at a temperature of about 50 DEG to 180 DEG C in the presence of an alcoholate alone, an alcoholate and an alkali hydroxide; or a combination of an alcoholate, or the alcoholate and alkali hydroxide and a decomposition accelerator, where the alcoholate is produced by alcoholating a part of the hydroxyl groups of an alcohol, or a part of the hydroxyl groups of an adduct of the alcohol or amine and an alkylene oxide, with an alkali metal, and the decomposition accelerator is selected from the group consisting of amines such as straight chain aliphatic amines, branched chain aliphatic amines, alicyclic amines, heterocyclic amines, and aromatic amines; those compounds produced by cyanoethylating the above amines or by partly adding an alkylene oxide to the above amines; and amines and urea based compounds, or in the presence of the alcoholate, decomposition accelerator, and an alkali hydroxide.
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