C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 263/04 (2006.01) C07C 265/14 (2006.01)
Patent
CA 2682512
Disclosed are: a method for producing an isocyanate by using a composition comprising a carbamic acid ester and an aromatic hydroxy compound, which does not need to use any phosgene and does not have various problems accompanied by a conventional method for the production of an isocyanate; and a carbamic acid ester composition for the transport or storage of a carbamic acid ester. Specifically disclosed are: a method for producing an isocyanate, which involves a specific step and uses a composition comprising a carbamic acid ester and a specific aromatic hydroxy compound; and a composition for the transport or storage of a carbamic acid ester, which comprises a carbamic acid ester and a specific aromatic hydroxy compound.
L'invention concerne un procédé de production d'un isocyanate en utilisant une composition comprenant un ester d'acide carbamique et un composé hydroxy aromatique qui ne nécessite pas l'utilisation de phosgène et ne présente pas divers problèmes associés à un procédé classique de production d'un isocyanate ; et une composition d'ester d'acide carbamique pour le transport ou le stockage d'un ester d'acide carbamique. L'invention concerne spécifiquement un procédé de production d'un isocyanate qui comprend une étape spécifique et utilise une composition comprenant un ester d'acide carbamique et un composé hydroxy aromatique spécifique ; et une composition pour le transport ou le stockage d'un ester d'acide carbamique qui comprend un ester d'acide carbamique et un composé hydroxy aromatique spécifique.
Miyake Nobuhisa
Shinohata Masaaki
Asahi Kasei Chemicals Corporation
Goudreau Gage Dubuc
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