Trimerization of aromatic isocyanates catalyzed by certain ammon

Details Trimerization of aromatic isocyanates catalyzed by certain ammon Trimerization of aromatic isocyanates catalyzed by certain ammon

1975-04-23

1976-09-14

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AW, 260 775AC, 260 775NC, 260248NS, 2605676M, 428425, C08G 1800

Patent

active

039805948

ABSTRACT:
Quaternary ammonium salts or inorganic and organic oxygen acids having pK values (where pK is the negative log of the dissociation constant) for at least one of the dissociable hydrogen atoms equal to or greater than 2.0 in aqueous solution are employed as extremely efficient catalysts for trimerization of organic isocyanates, particularly aromatic isocyanates, to isocyanurates and for urethane formation.

REFERENCES:
patent: 2866802 (1958-12-01), Graham
patent: 3487080 (1969-12-01), Matsui et al.
patent: 3657161 (1972-04-01), Bernard et al.
patent: 3711444 (1973-01-01), Allen et al.
patent: 3715337 (1973-02-01), Allen et al.
patent: 3817939 (1974-06-01), Allen et al.

Affiliated with

Also associated with

Rating

Trimerization of aromatic isocyanates catalyzed by certain ammon does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trimerization of aromatic isocyanates catalyzed by certain ammon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trimerization of aromatic isocyanates catalyzed by certain ammon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1025642