C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/611.2, 260/5
C07C 205/17 (2006.01) C07C 205/20 (2006.01) C07C 291/02 (2006.01) C08K 5/32 (2006.01) C09K 15/24 (2006.01)
Patent
CA 1086774
ABSTRACT OF THE DISCLOSURE An improved phenolic antioxidant is disclosed which is effective under conditions of extended use or high temperatures. The compound has a formula (1) Image or (II) Image wherein Ar represent a 3,5-di-tertiary-butyl-4-hydroxybenzyl radical, R1 and R2 each represent hydrogen, a lower C1-C4 alkyl radical or an Ar radical, and R3 represents a lower C1-C4 alkyl radical or methoxy- or ethoxy-substituted lower C1-C4 alkyl radical. Also a process is disclosed for preparing the compound by reacting nitroalkane in the presence of a polar, water miscible organic solvent at room temperature to the reflux temperature of the solvent with either (a) formaldehyde and 2,6-di-t-butylphenol together with a lower aliphatic alcohol if the nitro-alkane is nitromethane, (b) 3,5-di-t-butyl-4- hydroxybenzyl N,N-dialkyldithiocarbamate, or (c) 2,6-di-t butyl-4-alkoxymethyl-phenol.
268669
Fetherstonhaugh & Co.
Fmc Corporation
LandOfFree
Nitroalkane based hindered phenol compounds and methods of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nitroalkane based hindered phenol compounds and methods of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nitroalkane based hindered phenol compounds and methods of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-437055