Title:
METHOD FOR PRODUCING TOLUENE DICARBAMATE, METHOD FOR PRODUCING TOLUENE DIISOCYANATE, AND TOLUENE DICARBAMATE
Document Type and Number:
Japanese Patent JP2012017278
Kind Code:
A
Abstract:
To provide a method for producing a toluene dicarbamate, by which the production of by-products can be reduced, to provide the toluene dicarbamate obtained by the production method, and to provide a method for producing toluene diisocyanate, for the production of the toluene diisocyanate from the toluene dicarbamate.
The method for producing the toluene dicarbamate is characterized by reacting toluene diamine with an N-nonsubstituted carbamate in the presence of an alcohol in the absence of urea.
Inventors:
MURAYAMA KOICHI
SHIMOKAWADOKO SHOKI
SUGANO TAKASHI
TAKAMATSU KOJI
TAKEUCHI HIROSHI
SASAKI SUKEAKI
KOTAKI YASUSHI
SHIMOKAWADOKO SHOKI
SUGANO TAKASHI
TAKAMATSU KOJI
TAKEUCHI HIROSHI
SASAKI SUKEAKI
KOTAKI YASUSHI
Application Number:
JP2010154823A
Publication Date:
January 26, 2012
Filing Date:
July 07, 2010
Export Citation:
Assignee:
MITSUI CHEMICALS INC
International Classes:
C07C269/04; C07C263/04; C07C265/14; C07C271/28
Domestic Patent References:
| JPH04164060A | 1992-06-09 | |||
| JPH05255232A | 1993-10-05 | |||
| JPS57112363A | 1982-07-13 | |||
| JPS6485958A | 1989-03-30 |
Foreign References:
| WO2012005059A1 | 2012-01-12 |
Attorney, Agent or Firm:
Hiroyuki Okamoto