Method for production of isocyanates

Details Method for production of isocyanates Method for production of isocyanates

2007-05-01

2007-05-01

Puttlitz, Karl (Department: 1621)

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

Organic compounds

Isocyanate esters

C560S338000

Reexamination Certificate

active

10493498

ABSTRACT:
In a process for preparing isocyanates by reacting the corresponding primary amines with phosgene in an inert solvent, use is made of from 0.01 to 50 mol % of a sulfonamide, based on the total amount of primary amine and isocyanate formed in the reaction solution.

REFERENCES:
patent: 3371114 (1968-02-01), Sayigh et al.
patent: 3440268 (1969-04-01), Stamm
patent: 3484466 (1969-12-01), Sayigh et al.
patent: 3492331 (1970-01-01), Sayigh et al.
patent: 4888125 (1989-12-01), Koenig et al.
patent: 262 295 (1989-06-01), None
patent: 1359428 (1974-07-01), None
patent: 01/17951 (2001-03-01), None
Ullmann's Encyclopedia of Industrial Chemistry, 6thEd, 2000 Electronic release chapter “Isocyanates, Organic- Production”.
H. Ulrich, Chemistry & Technology of Isocyanates, Wiley & Sons, 1996, pp. 328-330.

Affiliated with

Also associated with

Rating

Method for production of isocyanates does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3732553