Coloring resins by mixing naphthacenequinones therewith
AssigneeMitsui Toatsu Chemicals, Inc.
InventorsMichihiro Tsujimoto, Ryoichi Tsukahara, Tsutomu Nishizawa, Ichiro Okubo
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Abstract
Method of coloring an organic material with a naphthacenequinone derivative having the formula: ##STR1## wherein R.sub.1 and R.sub.3 are members selected from the group consisting of hydrogen, chlorine, hydroxyl or amino, R.sub.2 is a member selected from the group consisting of carboxyl or its derivative, sulfonamide, sulfonate and phenylsulfonate, X is a member selected from the group consisting of hydrazo and aromatic diamino. Organic materials with the compound have a brilliant hue with characteristic fluorescence and high sublimation fastness.
Claims10
A method for coloring a synthetic or semisynthetic organic resin comprising mixing said resin with a naphthacenequinone derivative having the formula:
- ##STR48## wherein R.sub.1 is selected from the group consisting of hydrogen, chlorine, hydroxyl and amino;
- and R.sub.2 is selected from the group consisting of
- (i)-- COOR.sub.4 wherein R.sub.4 is a member selected from the group consisting of hydrogen, alkyl, alkoxyalkyl, cyclohexyl, aralkyl and cations;
- (ii) ##STR49## wherein R.sub.5 and R.sub.6 are members selected from the group consisting of hydrogen, alkyl and aryl;
- (iii) --CONH--R.sub.7 wherein R.sub.7 is amino;
- (iv) ##STR50## wherein R.sub.8 and R.sub. 9 are hydrogen, alkyl, alkoxyalkyl, and aryl;
- (v) ##STR51## wherein R.sub.10 is a member selected from the group consisting of methyl or chlorine;
- (vi) --SO.sub.3 --R.sub.11 wherein R.sub.11 is a cation;
- and
- (vii) ##STR52## substituted at an optional position and wherein X is hydrazo or aromatic diamino and R.sub.3 is optionally positioned and is selected from the group consisting of hydrogen, chlorine, hydroxyl and amino.
Dependencies are inferred from the claim text.