C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 11/18 (2006.01) C08J 11/10 (2006.01) C08J 11/24 (2006.01) C08J 11/28 (2006.01) G01N 7/18 (2006.01) G01N 33/00 (2006.01) G01N 33/44 (2006.01)
Patent
CA 2184088
In the decomposition of a polymer containing a urethane linkage and or urea linkage in the presence of a decomposing agent, the amount of evolved carbon dioxide is measured and the decomposition reaction is conducted until a total amount of evolved carbon dioxide reaches a specified value to obtain a liquid decomposition product. According to the present invention, a decomposition product having constant quality can be obtained in a simple manner.
Dans la décomposition d'un polymère contenant une liaison uréthane et/ou urée, en présence d'un agent de décomposition, on mesure le volume de dioxyde de carbone dégagé et on procède à la réaction de décomposition jusqu'à ce que le volume de dioxyde de carbone dégagé atteigne une valeur spécifiée de manière à obtenir un produit de décomposition liquide. Ainsi, on peut obtenir, par un procédé simple, un produit de décomposition de qualité constante.
Hoshino Yuji
Ikuta Hiroshi
Masuda Takaaki
Mitobe Hisao
Sumitomo Bayer Urethane Co. Ltd.
Swabey Ogilvy Renault
Toyota Jidosha Kabushiki Kaisha
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