Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-08-14
1980-01-08
Morgenstern, Norman
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07C 5142, C07C 5158
Patent
active
041827287
ABSTRACT:
Discoloration of dicarboxylic acid chlorides having 4 to 10 carbon atoms, especially those made by reacting the corresponding dicarboxylic acid with phosphorus trichloride, is inhibited by the addition of a dicarboxylic acid thereto. Addition of a dicarboxylic acid to a dicarboxylic acid chloride which has already discolored precipitates impurities and thus clarifies the dicarboxylic acid chloride. The clarified dicarboxylic acid chlorides are useful as starting materials to make polyester foam materials.
REFERENCES:
patent: 1936739 (1933-11-01), Townend
Des Marais Thomas A.
Hughes Michael K.
Braun Fredrick H.
Melnikoff Jeffrey R.
Morgenstern Norman
The Procter & Gamble & Company
Witte Richard C.
LandOfFree
Preservation of dicarboxylic acid chlorides does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Preservation of dicarboxylic acid chlorides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preservation of dicarboxylic acid chlorides will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1941010