C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/468.8, 260/5
C07C 269/04 (2006.01) C07C 269/00 (2006.01) C07C 271/28 (2006.01) C07C 273/18 (2006.01) C07C 275/28 (2006.01)
Patent
CA 2012624
Abstract of the Disclosure A method of manufacturing aromatic urethanes util- izes a urea production process wherein a primary arom- atic amine, an aromatic nitro-compound and carbon monoxide are made to react together in the presence of a catalyst and solvents, to produce N,N'-disubstituted urea, the solvent used in said urea production process consisting at least partly of an amide or oxygen- containing sulfur compound, and having the functions of stabilizing said catalyst and preventing it from sepa- rating out in a solution, and of increasing the activity of the catalyst, the quantity of said solvent being suf- ficient to permit it to fulfil these functions effec- tively. The method additionally includes an aromatic urethane production process wherein the N,N'- disubstituted urea produced is made to react with an organic compound containing hydroxyl groups, to produce a primary aromatic amine and aromatic urethane, the pri- mary aromatic amine being separated to obtain the aroma- tic urethane.
Hachiya Tetsuo
Iemoto Mikoto
Ikariya Takao
Itagaki Masanori
Miyazawa Makoto
Nkk Corporation
Ridout & Maybee Llp
LandOfFree
A method of manufacturing aromatic urethanes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with A method of manufacturing aromatic urethanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A method of manufacturing aromatic urethanes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1908242