Process for preparation of isocyanate compounds

Details Process for preparation of isocyanate compounds Process for preparation of isocyanate compounds

1995-11-16

1999-06-22

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Isocyanate esters

560 24, 560157, 560158, C07C26300, C07C26100

Patent

active

059144289

ABSTRACT:
An aliphatic diisocyanate compound is prepared in a high yield by reacting dimethyl carbonate with an aliphatic diamine in the presence of an alkali catalyst to produce a corresponding urethane compound; and, within 48 hours after the completion of the preparation of the urethane compound, thermally decomposing the urethane compound under a reduced pressure of 1 to 700 Torr in a high-boiling-point solvent.

REFERENCES:
patent: 3919279 (1975-11-01), Rosenthal et al.
patent: 4081472 (1978-03-01), Tsumura et al.
patent: 4330479 (1982-05-01), Merger et al.
patent: 4395565 (1983-07-01), Romano et al.

Affiliated with

Also associated with

Rating

Process for preparation of isocyanate compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparation of isocyanate compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparation of isocyanate compounds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1709037