摘要:
Azo pigments having the formula ##STR1## wherein X represents hydrogen or halogen atom; n represents an integer of 1 to 4; R.sub.1 represents a substituted or unsubstituted aromatic group; R.sub.2 represents a moiety of a coupling component which has one coupling site and R.sub.3 represents a moiety of a coupling component which has two coupling sites.The azo pigments can be produced by coupling a coupling component with a diazonium compound of an aromatic amine having the formula ##STR2## wherein X, n and R.sub.1 are defined above.
摘要:
New yellow azo pyrazolone compounds having the structure ##STR1## wherein R is halogen and R.sub.1 and R.sub.2 are hydrogen, lower alkyl or halogen. The compounds are useful as yellow dyes in heat transfer printing of synthetic fabrics.
摘要:
1-PHENYL-3-AMINO-2-PYRAZOLINES ARE CATALYTICALLY OXIDIZED TO 1-PHENYL-3-AMINOPYRAZOLES, USING OXYGEN AND/OR AIR AS THE OXIDIZING AGENT AND IN THE PRESENCE OF COPPER SALTS, OPTIONALLY ASSOCIATED WITH METALLIC COPPER AND/OR AN AROMATIC, HETEROCYCLIC ORGANIC BASE SELECTED FROM N-dialkyl anilines, pyridines, piperidine, and ethanolamine, or equivalents thereof, in an inert reaction medium and at a temperature of from about 20.degree. C. to about 40.degree. C.
摘要:
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable pyridylazopyrazole or pyrimidylazopyrazole dye moiety. The compound contains in the ortho position of the azopyrazole moiety a metal chelating group, a salt thereof or a hydrolyzable precursor thereof, and a ballasted carrier moiety which is capable of releasing the diffusible azo dye under alkaline conditions. The dye is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability.
摘要:
Bright greenish yellow dyes of excellent color value prepared by coupling a lower alkyl anthranilate into 1-phenyl-3-carbalkoxy-5-pyrazolone and having the formula: ##STR1## WHERE R and R.sub.1 are independently lower alkyl; X is hydrogen, halogen, nitro, hydroxy, lower alkyl or lower alkoxy; Y is hydrogen, halogen, lower alkyl or nitro and a and b are integers of 1-2. This class of azo dyes, when appropriately dispersed, produces dyeings on aromatic polyester fabrics with excellent substantivity, outstanding sublimation fastness and good fastness to light. The dyes are applied to polyester, such as polyethyleneterephthalate, by carrier dyeing, pressure dyeing and thermofixation methods.
摘要:
A coloured magenta coupler for photography is disclosed which is represented by the following general formula: ##STR1## wherein R is substituted phenyl, R.sub.1 and R.sub.2 individually stand for hydrogen, halogen, hydroxyl, alkyl, alkoxy or acylamino, with the proviso that one of R.sub.1 and R.sub.2 is hydroxyl but that both are not hydroxyl simultaneously, R.sub.3 is hydrogen, halogen, alkyl, nitro or acylamino and R.sub.4 stands for hydrogen, halogen or a monovalent organic residue.
摘要翻译:公开了用于摄影的着色品红色成色剂,其由以下通式表示:其中R是取代的苯基,R 1和R 2各自代表氢,卤素,羟基,烷基,烷氧基或酰氨基,条件是 R 1和R 2是羟基,但同时不是羟基,R 3是氢,卤素,烷基,硝基或酰基氨基,R 4代表氢,卤素或一价有机残基。
摘要:
The known compounds of the formula: ##STR1## wherein X is hydrogen or bromine, Y is hydrogen, chlorine, bromine or methyl and the -COOH group is meta or para to the azo group have been found to be useful in uniformly dyeing polyamide fibers to a yellow shade.
摘要:
A colored curable composition of the present invention contains a compound represented by general formula (1). In general formula (1), X1 to X4 each represents a halogen atom, and M represents a metal atom, a metal oxide, a metal halide or a non-metal. R1 to R4 each represents a group represented by general formula (2) or a substituent other than the group, and at least one of R1 to R4 is a group represented by general formula (2). n1 to n4 each represents an integer of 0 to 4, and m1 to m4 represent an integer of 0 to 4. However, the sum total of n1 to n4 and the sum total of m1 to m4 are each 1 or higher. In general formula (2), L1 represents a divalent linking group, Ar represents an arylene group and A represents a group having a polymerizable group.