Abstract:
Tetraphenylborates are obtained in an industrially advantageous grade by spray drying an organic, aqueous or organic-aqueous extract of the tetraphenylborates obtainable in the tetraphenylborates synthesis. It is advantageous to treat the specified extract prior to spray drying with pH-controlling auxiliaries and adsorbents to remove byproducts or to limit their formation. The process gives tetraphenylborates in a homogeneous technical grade, i.e. in a narrow particle size distribution and in a particular particle shape, which improves the dispersibility in the medium to be used.
Abstract:
Compounds of the formula (1) ##STR1## in which X denotes a sulfur atom or the group ##STR2## in which R denotes a hydrogen atom, an alkylene-C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.6 - or alkyl-C.sub.1 -C.sub.6 - group, each of which can be substituted by hydroxyl, sulfo, carboxyl or cyano groups, R.sub.1 denotes a hydrogen atom or an alkyl-C.sub.1 -C.sub.6 -group which can be substituted by --SO.sub.3 M or COOM groups (where M denotes an H, Li, Na, K or Ca atom), hydroxyl, amino, methylamino, acetylamino, alkyl-C.sub.1 -C.sub.4 -sulfonylamino, methoxy, ethoxy, .beta.-hydroxyethylsulfonyl, phenyl, monosulfophenyl, disulfophenyl, or 4-[.beta.-hydroxyethylsulfonyl]-2-sulfophenyl groups, or represents a phenyl or naphthyl group, each of which can be substituted by --SO.sub.3 M or COOM groups (where M denotes an H, Li, Na, K or Ca atom), alkyl-C.sub.1 -C.sub.4 -, alkoxy-C.sub.1 -C.sub.4 -, amino, methylamino, alkyl-C.sub.1 -C.sub.4 -sulfonylamino or acetylamino groups, and R.sub.2 is hydrogen or oxygen, and process for their preparation by reacting compounds of the formula (2) ##STR3## in which Y denotes a chlorine or bromine atom, with a compound of the formula (3)H--X--R.sub.1 (1)in which X and R.sub.1 have the stated meanings, at between 20.degree. and 90.degree. C. in a solvent which is suitable in respect of the reactants of the formulae (2) and (3) and in the presence of an acid-binding agent to give compounds of the formula (4) ##STR4## in which X and R.sub.1 have the stated meanings, and if desired using these compounds in a manner known per se to compounds of the formula (1) where R.sub.2 =H.
Abstract:
A highly water-soluble composition for the dyeing or printing of native or synthetic polyamide fibres consisting essentially of (a) 10 to 99 parts by weight of at least one dyestuff ##STR1## IN WHICH X represents hydroxy, methyl, ethyl, methoxy or ethoxy, and Y represents hydrogen or methyl, and (b) 0.5 to 90 parts by weight of an auxiliary agent of the group consisting of a polyglycol of an average molecular weight from 3000 to 20 000, a polyglycolether (containing 15 to 30 ether groups) of a fatty alcohol of 8 to 20 carbon atoms, an alkali metal salt of a dialkylnaphthalene sulfonic acid (alkyl C.sub.1 -C.sub.6), a methyltauride of a saturated or unsatruated fatty acid of 8 to 20 carbon atoms, and an isethionate of a saturated or unsaturated fatty acid of 8 to 20 cabron atoms, and mixtures thereof, said composition being also suitable for the dyeing or printing of the said polyamide fibres in deep shades.
Abstract:
Use of a water-soluble disazo dyestuff of the formula ##STR1## in which R.sub.1 represents a hydrogen atom or the sulfonic acid group, R.sub.2 represents a chlorine atom or the methoxy group, and R.sub.3 and R.sub.4 each represents a hydrogen atom or a methoxy group, for the dyeing or printing of synthetic textile material consisting of or containing polyamide or polyurethane fibers, the dyestuff used yielding on the said fibrous material excellent, clear golden-yellow to orange dyeings or prints being distinguished by very good properties as to fastness to light and to wetting.
Abstract:
Fiber-reactive monoazo dyestuffs which, in form of free acids, correspond to the general formula ##STR1## in which Z represents one of the groupings--CH.sub.2 --CH.sub.2 --OSO.sub.3 Hor--CH=CH.sub.2a stands for benzene, naphthalene or pyrazole unsubstituted or substituted by alkyl, alkoxy or by a phenyl group which is unsubstituted or may be substituted by alkyl, alkoxy, hydroxy, cyano, nitro, sulfonic acid, sulfonic acid amide, carboxylic acid amide, chlorine, bromine, carboxylic acid, acetylamino, benzoylamino, trifluoromethyl, carbalkoxy, B-sulfatoethylsulfonyl or vinylsulfonyl, and wherein, if A represents a benzene or naphthalene radical the azo group and the amino group of the formula --NR.sub.1 R.sub.2 standing in ortho or para position to each other, and if A is pyrazole, the group --NR.sub.1 R.sub.2 is standing in 5-position and the azo group in 4-position of the pyrazole, R.sub.1 and R.sub.2 are different or the same and each stand for hydrogen or alkyl which may be substituted by chlorine, hydroxy, cyano, alkanoyloxy, benzoyloxy, nitrobenzoyloxy, chlorobenzoyloxy, phenyl or phenyl substituted by alkyl, alkoxy, alkyl-sulfone, sulfonic acid, sulfonic acid amide, carboxylic acid amide, nitro, trifluoromethyl, chlorine or bromine, which are suitable for the dyeing and printing of native and regenerated cellulose fibers, but especially advantageous for dyeing or printing fibers or fabrics of nitrogen - containing fibers of native or synthetic origin.
Abstract:
Process for preparing a dyestuff consisting essentially of only unsymmetrical 1:2-chromium complex azo dyestuffs by heating a mixture of o,o'-dihydroxy azo dyestuffs and o-carboxy-o'-hydroxy azo dyestuffs, both being free from sulfonic acid groups, with chromium-III chloride in an organic solvent at a temperature of 105.degree. to 120.degree.C until the portion of o,o'-dihydroxy azo dyestuff is completely metallized and completing the 1:2-chromium complex formation by adjusting the pH-value to 5.0-6.5, and heating at a temperature of 70.degree. to 90.degree.C.
Abstract:
A process for the preparation of 2,5-di(phenylamino)terephthalic acid and its dialkyl esters of formula (I): ##STR1## in which R is a hydrogen atom or a methyl group and R' is a hydrogen atom or a methyl or ethyl group.
Abstract:
A water-soluble azo compund of formula ##STR1## in which Y is vinyl or --CH.sub.2 --CH.sub.2 --Z in which Z is chlorine, bromine, fluorine, lower alkanoyloxy, benzoyloxy, sulfobenzoyloxy, benzenesulfonyloxy, toluenesulfonyloxy, lower alkylsulfonylamino, arylsulfonylamino, phenoxy, dialkylamino, each alkyl being of from 1 to 4 carbon atoms, thiosulfato, phosphato or sulfato;n is the number zero or 1;D is phenylene unsubstituted or substituted by one or two substituents selected from the group consisting of lower alkyl, lower alkoxy, hydroxy, lower alkanoylamino, chlorine, bromine, fluorine and carboxy; by one nitro substituent; by one sulfo substituent; by one substituent of the formula Y--SO.sub.2 --(CH.sub.2).sub.n -- in which n is 1; by a plurality of substituents selected from the group consisting of said one or two substituents, said one nitro substituent, said one sulfo substituent and said one substituent of the formula Y--SO.sub.2 --(CH.sub.2).sub.n --; ornaphthylene substituted or mono- or disubstituted by sulfo; orthe benzothiazol-2-yl radical in which the group Y--SO.sub.2 --(CH.sub.2).sub.n -- is bonded to its carbocyclic ring, or said radical in which the benzene ring is additionally substituted by lower alkyl, lower alkoxy, hydroxy, lower alkanoylamino, nitro, chlorine, bromine or sulfo; R.sup.1 is hydrogen, lower alkyl, lower alkenyl, lower alkyl substituted by phenyl or hydroxy or by both, lower alkyl substituted by phenyl which is substituted by substituents selected from the group consisting of methyl, methoxy and chlorine, or by said substituted phenyl and hydroxy, or is alkyl of from 2 to 4 carbon atoms substituted by acetoxy, propionyloxy or phenylsulfonyloxy or by cyano, or is alkyl of from 1 to 4 carbon atoms substituted by carboxy or carbonamido or carbalkoxy of from 1 to 4 carbon atoms in the alkyl moiety, or is halogenoalkyl of 2 or 3 carbon atoms or is lower halogenoalkenyl, or is a group of the formula --A--SO.sub.3 M;A is ethylene, or propylene of the formula ##STR2## in which X is hydroxy, acetoxy, propionyloxy or phenylsulfonyloxy or is a halogen;R.sup.2 is hydrogen, lower alkyl, lower akloxy unsubstituted or substituted by hydroxy, acetoxy, carboxy, carbamoyl, cyano or halogen, or is halogen or trifluormethyl;R.sup.3 is hydrogen, lower alkyl, lower alkoxy unsubstituted or substituted by hydroxy, acetoxy, carboxy, carbamoyl, cyano or halogen, or is halogen;M is hydrogen or an alkali metal.The new azo compounds are suitable as dyestuffs, in particular for dyeing or printing fibers which contain hydroxy groups or carbonamide groups, or leathers.
Abstract:
Process for the level dyeing of wool, having an anti-felting finish consisting of a coating layer of polyimine or polyamine resin, according to the exhaustion method with reactive dyestuffs which contain two or more sulfonic acid or sulfonate groups -- without considering the sulfonic acid or sulfonate groups which may be contained in the fiber-reactive groupings -- in the molecule or with conbinations of such dyestuffs having a different absorbing capacity from an aqueous bath at elevated temperature, in which process benzene sulfonic acids, alkylbenzene sulfonic acids, naphthalene sulfonic acids, alkylnaphthalene sulfonic acids or the condensation products of naphthalene sulfonic acids with formaldehyde or cresols are added to the dyeing liquor.
Abstract:
Tetraphenylborates are obtained in an industrially advantageous grade by spray drying an organic, aqueous or organic-aqueous extract of the tetraphenylborate obtainable in the tetraphenylborate synthesis. It is advantageous to treat the specified extract prior to spray drying with pH-controlling auxiliaries and adsorbents to remove byproducts or to limit their formation. The process gives tetraphenylborates in a homogeneous technical grade, i.e. in a narrow particle size distribution and in a particular particle shape, which improves the dispersibility in the medium to be used.