High color strength diarylide yellow pigment compositions

Details High color strength diarylide yellow pigment compositions High color strength diarylide yellow pigment compositions

1985-04-12

1987-03-10

Yarbrough, Amelia B.

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 31, 106288Q, 106309, C09D 1108

Patent

active

046489070

ABSTRACT:
Improved diarylide yellow pigment compositions having high color strength. The compositions are manufactured by modifying tetrazotized 3,3'-dichlorobenzidine with a solution of about 3 to about 5 mole percent of a first acetoacetarylide, followed by coupling into a second acetoacetarylide such as acetoacetanilide.

REFERENCES:
patent: 3725101 (1973-04-01), Kubne
patent: 3775148 (1973-11-01), Bradley
patent: 3776749 (1973-12-01), McKay et al.
patent: 4154618 (1979-05-01), Burke
patent: 4304601 (1981-12-01), Sharp
patent: 4341701 (1982-07-01), Pechey et al.
patent: 4469515 (1984-09-01), Pechey et al.
"Surface Treatment of Organic Pigments for Printing Ink Applications", by B. G. Hays, American Ink Maker, vol. 62, No. 6 (Jun. 1984) pp. 28-50.

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