Title:
PROCESS FOR PRODUCING ISOCYANATE
Document Type and Number:
WIPO Patent Application WO/2008/084824
Kind Code:
A1
Abstract:
A process by which an isocyanate can be stably produced for long in high yield without
using phosgene. It is free from various problems encountered in prior-art techniques.
The process for producing an isocyanate is characterized by subjecting a carbamic
acid ester to decomposition reaction in the presence of a compound having an active
proton and a carbonic acid derivative.
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Inventors:
SHINOHATA, Masaaki (1-2 Yuraku-cho 1-chome, Chiyoda-ku Tokyo, 40, 1008440, JP)
篠畑 雅亮 (〒40 東京都千代田区有楽町一丁目１番２号 Tokyo, 1008440, JP)
篠畑 雅亮 (〒40 東京都千代田区有楽町一丁目１番２号 Tokyo, 1008440, JP)
Application Number:
JP2008/050171
Publication Date:
July 17, 2008
Filing Date:
January 10, 2008
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation (1-2 Yuraku-cho 1-chome, Chiyoda-ku Tokyo, 40, 1008440, JP)
旭化成ケミカルズ株式会社 (〒40 東京都千代田区有楽町一丁目１番２号 Tokyo, 1008440, JP)
SHINOHATA, Masaaki (1-2 Yuraku-cho 1-chome, Chiyoda-ku Tokyo, 40, 1008440, JP)
旭化成ケミカルズ株式会社 (〒40 東京都千代田区有楽町一丁目１番２号 Tokyo, 1008440, JP)
SHINOHATA, Masaaki (1-2 Yuraku-cho 1-chome, Chiyoda-ku Tokyo, 40, 1008440, JP)
International Classes:
C07C263/04; C07C265/14
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (TMI ASSOCIATES 23rd Floor, Roppongi Hills Mori Tower 6-10-1, Roppongi, Minato-k, Tokyo 23, 1066123, JP)
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