Diaryl pigments with improved heat stability obtained by couplin

Details Diaryl pigments with improved heat stability obtained by couplin Diaryl pigments with improved heat stability obtained by couplin

1983-06-23

1987-05-12

Higel, Floyd D.

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

Organic compounds

Azo

106 23, 106288Q, 106308Q, 106309, 534581, 534738, 534742, 534747, C09B 35035, C09B 6720, C09D 1102, D06P 149

Patent

active

046651632

ABSTRACT:
Diaryl pigments having an excellent stability to heat are obtained by carrying out the coupling of bis-diazotized 3,3'-dichloro-4,4'-diaminobiphenyl with acetoacetanilides in the presence of an added quantity of acetoacetanilides which are monosubstituted or disubstituted in the 3-position or 4-position of the nucleus. As a result of their good heat stability, these pigments are particularly suitable for pigmenting plastics having processing temperatures above 200.degree. C.

REFERENCES:
patent: 3405116 (1968-10-01), Ischer
patent: 3529984 (1970-09-01), Bandel et al.
patent: 3905825 (1975-09-01), Gaetani et al.
(Forter et al., II), Chemical Abstracts, 65:9063d (1966).
Toyo II, Chemical Abstracts, 93:206142b (1980).
Funatsu et al., Chemical Abstracts, 89: 112360m (1978).

Affiliated with

Also associated with

Rating

Diaryl pigments with improved heat stability obtained by couplin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Diaryl pigments with improved heat stability obtained by couplin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diaryl pigments with improved heat stability obtained by couplin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1803298