Abstract: Yellow dyes from substituted 2-aminothiophene and acyclic active methylene coupling components are of particular interest for dyeing polyester fibers. The dyes have the formula: ##STR1## wherein: X is a group such as alkyl, allyloxy, alkoxy, aryl or the like; Y is hydrogen, alkyl, or aryl; Z is alkyl, aryl, alkylsulfonyl, cyano or COX where X is defined above; R is cyano, carbamyl, alkanoyl, aroyl, or the like; R.sub.1 is selected from the R groups and ##STR2## wherein R.sub.2 represents the atoms necessary to complete an azole radial selected from benzothiazole, benzimidazole, benzoxazole, 1,3,4-oxadiazole, 1,3,4-thiadiazole, and pyrazole; and wherein the hydrocarbon moieties of each of the above radicals or groups may be substituted with up to three of --OH, alkoxy, hydroxyalkoxy, alkylcarbamyl, or the like.

Abstract: Thiophen-2-ylazopyrazole dyes useful for dyeing polyesters, cellulose acetate esters, and polyamides in fast yellow shades have the general formula: ##STR1## wherein: X is alkyl, allyloxy, alkoxy, aryl, aryloxy, amino, alkylamino, arylamino, cyclohexyloxy,, thienyl, cycloalkylamino, N,N-dialkylamino, or N-alkyl-N-arylamino; Y is hydrogen, alkyl, or aryl; Z is alkyl, aryl, alkylsulfonyl, 2-benzothiazolyl, cyano or COX; R and R.sub.1 are alkyl or aryl; R.sub.2 is hydrogen, alkyl, aryl, acyl, benzothiazolyl, pyridyl, sulfolanyl, quinolyl, thiocarbamyl, carbamyl, alkoxycarbonyl, aroyl, aryl-carbamyl and alkanoyl; and wherein the hydrocarbon moieties of the above radicals may be substituted with up to three of --OH, alkoxy, hydroxyalkoxy, carbamyl, and similar groups conventionally used in the azo dye art.

Abstract: Azo dyes having the general formula ##STR1## in which each of X, Y and Z are independently selected from H and a variety of substituents, preferably provided that at least one of X and Y is a substituent selected, for example, from --CN, halogen, alkyl, and alkylsulfonyl, and C is the residue of a phenol, naphthol, indole, imidazothiazole, pyrazolone, thiazole, isothiazole or pyrazole type disperse dye coupling component. These dyes which are unexpectedly non-phototropic produce yellow to orange shades on hydrophobic fibers and exhibit improvements in one or more properties such as dyeability, dye exhaustion rate, light fastness, nonblooming, pH stability, build, fastness to ozone and nitrogen oxide, crock and wash fastness, migration, transfer, and pH stability on polyester, polyamide and other fibers including cellulose ester.

Abstract: Disclosed are azo dyes in which the diazo component is a diazotized 3-amino-2,1-benzisothiazole compound bearing one or two sulfo groups, and the coupler is either a 1,2,3,4-tetrahydroquinoline or a 2,3-dihydro-1,4-benzoxazine compound. These dyes exhibit excellent dyeing and fastness properties on polyamide fibers and also impart color to cellulose acetate fibers and wool. The dyes correspond to the general formula: ##STR1## wherein R.sup.5 is 0-3 substituents independently selected from halogen, cyano, alkyl, alkoxy, sulfo, and the like; M is H.sup.+, Na.sup.+, K.sup.+ or the like; and C is the coupler which may be substituted with groups known to the art.

Abstract: This invention relates to new azo dyes derived from 2-amino-5-cyanomethylthio-1,3,4-thiadiazole and aniline and tetrahydroquinoline couplers which may be extensively substituted. The dyes impart orange to violet shades on hydrophobic fibers, including polyesters, polyamides, and cellulose esters. They are of the particular interest for dyeing textured polyester fibers and have excellent properties such as fastness to light and sublimation.

Abstract: This invention concerns azo dyes having the general formula ##STR1## and their preparations in which X, Y and Z are H or any of a variety of substituents, provided that at least one of X and Y must always be a substituent selected from --CN, --NO.sub.2, --CHO, and other selected groups specified herein, and A is the residue of an aniline, tetrahydroquinoline or benzomorpholine type disperse dye coupling component. These dyes which are unexpectedly non-photochromic produce red to blue shades on polyester fibers and exhibit one or more improved properties such as dyeability, dye exhaustion rate, light fastness, non-blooming, pH stability, build, fastness to ozone and nitrogen oxide, crock and wash fastness, migration, transfer, and pH stability on polyester and other fibers including cellulose ester.

Abstract: This invention relates to azo dyes prepared by diazotizing substituted or unsubstituted heterocyclic amines such as 2-aminothiophene and coupling with certain aniline, tetrahydroquinoline, or benzomorpholine compounds containing sulfoaralkyl groups. These dyes are particularly useful in dyeing polyamide fibers, cellulose acetate fibers and wool.

Abstract: Disclosed are novel azo dyes from 2-amino-5-alkylthio-1,3,4-thiadiazoles and N-acyloxyalkyl-m-acylamidoanilines. These dyes are useful for dyeing synthetic hydrophobic fibers and particularly polyester. The dyes have the general formula: ##STR1## wherein R is alkyl; X is hydrogen, or alkyl; R.sub.1 is hydrogen, alkyl, aralkyl or ##STR2## R.sub.2 is alkyl, aryl, aralkyl, cycloalkyl, alkylamino, or arylamino; and Ac is formyl or alkanoyl; and wherein R and the alkyl, alkylene, aryl and cycloalkyl moieties of R.sub.2 and the alkanoyl moiety of Ac may be substituted with a large variety of groups such as --OH, OOC-alkyl, --COO--alkyl, succinimido, phthalimido, alkoxy, carbamoyl and the like.

Abstract: This invention relates to azo dyes in which the diazotized amino component bears a sulfonic acid or salt group on its ring. These dyes have excellent dyeing properties on polyamide fibers, particularly nylon carpets and also impart color to cellulose acetate fibers and wool.The dyes correspond to the general formula: ##STR1## wherein R.sup.1 is selected from hydrogen and alkyl; M is H.sup.+, Na.sup.+, K.sup.+, Li.sup.+ or NH.sub.4.sup.+ ; and the coupler C is selected from a variety of couplers including anilines, tetrahydroquinolines, phenols , and the like which may be substituted with known substituents such as halogen, alkyl, alkoxy, acylamido, sulfamoyl, carbamoyl and the like.

Abstract: Disclosed are novel azo dyes containing an isothiazole azo moiety which may be substituted, and a heterocyclic coupler which also may be substituted. The dyes produce yellow shades on, for example, hydrophobic textile fiber including polyesters, polyamides, and cellulose esters and have excellent fastness properties including lightfastness, washfastness and resistance to sublimation, and dye at unusually low energy levels. The dyes have the general formulae: ##STR1## wherein the various substituents, R.sup.1 and R.sup.2 are each selected from hydrogen and a wide variety of groups such as lower alkyl, --CN, halogen, and the like, R.sup.3 and R.sup.4 are each selected from hydrogen, lower alkyl, benzyl and phenyl, and Z represents the atoms necessary to complete a five or six membered ring.

Abstract: Disclosed are azo dyes having the general formula ##STR1## in which A is the residue of an aniline, tetrahydroquinoline or benzomorpholine disperse dye coupling component, R is a divalent organic radical such as straight or branched, lower or cyclic aliphatic or arylene, each of which may be substituted, Z is SO.sub.3, SO.sub.4 or SSO.sub.3, and M is hydrogen, an alkali metal or ammonium. These dyes produce orange to bluish red shades and exhibit one or more improved properties such as dyeability, light fastness, blooming, pH stability, build, and the like on, for example, polyamide, wool, and cellulose ester fibers.

Abstract: Disclosed are colored polyesters having copolymerized therein anthraquinone derivative colorants containing one or more sulfonamido groups. The colored polymers are fast to light and the colorant moieties are not extractable therefrom, rendering from the colored polymers particularly suitable for use in food containers such as molded beverage bottles. The inherent viscosities of these polymers can be varied widely as is well known in the art for different applications. The copolymerizable colorants have the formula ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen or 1-3 substituents independently selected from alkyl, alkoxy, and the like; and T represents 1-4 independently selected radicals of the formula ##STR2## wherein R.sub.3 is hydrogen or 1-3 substituents such as alkyl, alkoxy and the like; Z is a divalent linking group such as --NH--, --S--, --O--, and alkoxycarbonyl; and Q is hydroxy, carboxy or alkoxycarbonyl.

Abstract: Disclosed are azo compounds having the formula ##STR1## in which R.sup.4 is straight or branched lower alkylene, Z is 1-3 groups selected from such heteroatom groups as --OH, lower alkanoyloxy, lower alkoxy, lower alkoxycarbonyl, lower alkoxyalkoxy, mono- or dialkylamino, --CN, carbamoyl, formamide, lower alkyl substituted carbamoyl, lower alkoxycarbonylamino, lower alkanoylamino, hydroxy substituted lower alkoxy, halogen, lower alkylthio, lower alkylsulfonyl, and various heterocyclic groups such as furyl and pyrrolidono, R is selected from straight or branched lower alkyl, phenyl and phenyl substituted with straight or branched lower alkyl, halogen, or straight or branched lower alkoxy, R.sup.2 is hydrogen or lower alkyl, and A is an aniline, tetrahydroquinoline, or benzomorpholine coupler component which may be substituted with a wide variety of groups.

Abstract: Disclosed are novel azo dyes containing a substituted thiophene diazo moiety which produces bright blue shades on polyester and also have good affinity, dyeability and other properties on cellulose esters. The dyes have the formula ##STR1## wherein R is selected from alkyl, phenyl and phenyl substituted with 1-3 of alkyl, alkoxy, halogen or nitro; R.sub.1 and R.sub.2 are each alkyl or one of which is also selected from hydrogen; R.sub.3 is selected from hydrogen, cycloalkyl, alkyl, alkoxy, alkylamino, phenyl, phenyl substituted as for R above, and alkyl substituted with 1-3 of hydroxy, alkoxy, acyloxy, halogen, phenyl, phenoxy or cyclohexyl; X is hydrogen, alkyl, or alkoxy; and wherein each alkyl and alkoxy moiety is straight or branched and contains from 1-8 carbons.

Abstract: Disclosed are novel acid azo dyes containing a sulfonated, sulfated or thiosulfated organothiothiadiazole azo moiety and a heterocyclic coupler which may be substituted. The dyes produce reddish-yellow to orange shades on, for example, hydrophobic textile fiber including polyesters, polyamides, and cellulose esters and have excellent fastness properties including lightfastness, stability to heat, washfastness and resistance to sublimation, and dye at unusually low energy levels. The dyes have the general formulae: ##STR1## wherein D is the aforesaid organothiothiadiazole moiety; R.sup.3 is selected from hydrogen, lower alkyl, and aryl; R.sub.4 is selected from H, lower alkyl, CH.sub.2 aryl, aryl, and lower alkyl substituted with cyano, carbamoyl or acylamino; Ar is a wide variety of carbocyclic radicals; and Z represents the atoms necessary to complete a five or six membered ring.

Abstract: Disclosed are novel azo dyes from 2-amino-5-organothio-1,3,4-thiadiazoles and N-cyanoethyl-m-acylamidoanilines. These dyes are useful for dyeing synthetic hydrophobic fibers and particularly polyester. The dyes have the general formula: ##STR1## wherein R is alkyl, aryl or cycloalkyl; X is hydrogen, or alkyl; R.sub.1 is hydrogen, alkyl or aralkyl; and R.sub.2 is formyl or alkanoyl; and wherein the alkyl, aryl and cycloalkyl moieties of R and R.sub.2 may be substituted with a large variety of groups such as --OH, OOC-alkyl, --COO-alkyl, succinimido, phthalimido, alkoxy, carbamoyl and the like.

Abstract: Methine dyes from tetrahydroquinoline compounds containing N-thioether substituents, in general produce bright yellow shades when applied to polyester fabrics by conventional dyeing procedures, have improved properties such as dyeability, fastness to light, resistance to sublimation, insensitivity to pH changes, and dye at the boil and under pressure to the same depth of shade. These compounds are particularly useful in the thermal fixation technique for dyeing polyester materials.

Abstract: Disclosed are tris phenyl bisazo dyes bearing one or two sulfated alkoxycarbonyl or sulfated alkylcarbamyl groups. These dyes impart yellow to red shades to fibers, particularly polyamides, and are especially useful for dyeing polyamide (nylon) carpets, generally giving good fastness to light, ozone, oxides of nitrogen, washing, sublimation, crocking, and the like, and having good leveling, exhaustion, build properties, and stability to variations in dyeing condition such as pH and temperature.The present dyes have the general formula: ##STR1## wherein X is --O--, --NH--, --N(alkyl)--, or --N(aryl)--; Z is selected from straight or branched-chain alkylene, and such alkylene containing one or two internal linkages independently selected from ether, amine and amide; M is H, Na, K, or NH.sub.4 ; n is 1 or 2; R.sub.3 is --OH, alkoxy or --NR.sub.8 R.sub.9, wherein R.sub.8 and R.sub.9 are independently selected from H and alkyl and when either R.sub.4 or R.sub.5 is hydroxy or alkoxy ortho to the azo radical, R.sub.

Abstract: Disclosed are novel azo dyes containing an isothiazole moiety substituted with ether or thioether groups. The dyes produce orange to violet shades on hydrophobic texture fiber including polyesters, polyamides, and cellulose esters and have excellent fastness properties including lightfastness, washfastness and resistance to sublimation. The dyes have the general formula ##STR1## R is lower alkyl or phenyl; X is O or S; R.sub.1 is lower alkyl or substituted lower alkyl, cyclohexyl, phenyl or substituted phenyl; and when X is S, R.sub.1 can be various heterocycles such as pyridyl, pryimidinyl, benzothiazolyl, benzoxazolyl, benzimidazolyl and azolyl radicals;R.sub.2 is hydrogen, lower alkyl, lower alkoxy, or acylamido;R.sub.3 is H, lower alkyl, or lower alkoxy; and R.sub.4 and R.sub.5 are selected from 1 to 2 of H, alkyl of 1-8 carbons, substituted alkyls, cyclohexyl, phenyl or substituted phenyl.

Abstract: Disclosed are colored polyester compositions containing copolymerized anthraquinone dyes as colorants, which compositions may be used, for example, for food packaging and to mold colored beverage bottles. The copolymerized dyes are thermally stable at the processing temperatures, and are colorfast and nonextractable. The useful dyes have the general formula: ##STR1## wherein either or both of rings A and B may contain in any position thereon one or two groups of the formula ##STR2## R and R.sup.3 each is hydrogen, lower alkyl or lower hydroxyalkyl; R.sup.1, R.sup.2, R.sup.4 and R.sup.5 each is hydrogen or 1-3 substituents such as lower alkyl, lower alkoxy, phenyl, Cl, Br, or the like; X is --S-- or --NH--; n is 1 or 2; m is 0, 1, or 2.