摘要:
Disperse dyes suitable for dyeing textile material composed of polyester dyes of the formula ##STR1## in which D is the radical of a substituted or unsubstituted, homocyclic or heterocyclic diazo component belonging to the series comprising thienyl, thiazolyl, isothiazolyl, 1,2,4-thiadiazolyl, 1,3,4-thiadiazolyl, benzothiazolyl, benzoisothiazolyl, pyrazolyl, imidazolyl or phenyl,X is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, acylamino, halogen or a group of the formula -NH-CO-NHQ in which Q is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,Y is hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkoxy,R is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl or phenyl, or Y and R, together with the nitrogen atom and the two C atoms linking them, form a 5-membered ring or 6-membered ring,B is a l inear or branched C.sub.2 -C.sub.6 -alkylene radical,W is halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,Z is halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or nitro and m and n are each, 0, 1, 2 or 3.
摘要:
A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified, cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula--O--CH.sub.2 --N
摘要:
Disperse dyes containing a monoazo coupling component of the formula ##STR1## in which X is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, acylamino, halogen or a group of the formula --NH--CO--NHQ in which Q is hydrogen, C.sub.1 -C.sub.4 alkyl or phenyl,Y is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkoxy,R is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.12 alkenyl or phenyl, or Y and R, together with the nitrogen atom and the two C atoms linking them, form a 5-membered or 6-membered ring,B is a linear or branched C.sub.2 -C.sub.6 alkylene radical,W is halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy,Z is halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or nitro andm and n are each 0, 1, 2 or 3.
摘要:
There is described a novel modification of the dye of the formula ##STR1## which is characterized by the data given in claim 1. This novel modification is suitable in particular for dyeing wound packages of polyester materials under HT conditions, materials dyed in a golden-yellow shade being obtained.
摘要:
Cellulosic textile materials can be dyed with disperse dyes from supercritical CO.sub.2 by treating the textile materials with an auxiliary that promotes dye uptake, typically polyethylene glycol.
摘要:
Disperse dyes, which produce dyeings of excellent thermomigration fastness, consisting of a chromophore and a lactam or oxime radical which detaches on heating to leave an isocyanate or isothiocyanate group, which reacts with a suitable group in the environment. The disclosed dyes are described by the formula ##STR1## where F is the radical of a dye which is free of water-solubilizing groups,B is a bridge member or a direct bond,Z is O or S andV is the radical of a group H--V, where H--V is an oxime of the formula ##STR2## or a lactam of the formula ##STR3## in which R.sup.1 and R.sup.2 are each independently of the other substituted or unsubstituted alkyl or aryl, orR.sup.1 and R.sup.2 together with the carbon atom linking them form a cycloaliphatic ring,R is hydrogen or alkyl andn is an integer from 4 to 11.
摘要:
Novel disperse dyes particularly suitable for dyeing textile material made of polyester fibers, said dyes being of the formula ##STR1## wherein X is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen,Y is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkoxy,R is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.12 alkenyl or phenyl, or Y and R, when taken together with the nitrogen atom and the two carbon atoms linking them, form a 5- or 6-membered ring,B is straight-chain or branched C.sub.2 -C.sub.6 alkylene,A is a radical of formula ##STR2## in which W is C.sub.1 -C.sub.9 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl, halogen or C.sub.1 -C.sub.4 alkoxy,n is 0, 1, 2, or 3,Q is hydrogen or C.sub.1 -C.sub.4 alkyl,V is halogen, andm is 0, 1, 2, 3 or 4.
摘要:
A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula--O--CH.sub.2 --N
摘要:
The invention provides a new process for the manufacture of aromatic compounds which at least once contain a benzene ring of an aromatic carbocyclic ring system bonded by an ethylene double bond in conjugation with a further aromatic ring system, i.e. contain the stilbene skeleton or stilbene analogon as central structural element, as well as certain classes of new compounds of this type. The process is characterized by the reaction of a Schiff base of an aromatic aldehyde with an aromatic carbocyclic six-membered ring compound which contains one to four methyl groups bonded to ring carbon atoms of a benzene ring, which furthermore contains aromatic rings which are exclusively six-membered carbocyclic rings, and wherein those benzene rings whose methyl groups are to be caused to react are free of other substituents which contain atoms which are replaceable by alkali metal. The reaction is carried out in the presence of (a) a strongly basic alkali compound and (b) an N-dialkyl-acylamide as solvent. The compounds obtainable according to this process show a marked fluorescence emission and therefore are suitable for all purposes where fluorescence properties are used, as for instance optical brighteners, scintillators fluorescence dyes, etc.
摘要:
Alternatively, the new bis-oxazoles may also be prepared by reacting at least one ortho-hydroxyamino compound in the molecular ratio of 2:1 with a para-carboxycinnamic acid of the formula (13) HOOC - HC = CH - R - COOH, (where R has the meaning indicated above) at an elevated temperature, for example at 120* to 260* C and preferably in the presence of a catalyst, especially boric acid, using ortho-hydroxyamino compounds of the formulas where A1 and A2 each represents a possibly substituted benzene radical. This process, which is preferably used for manufacturing compounds of the formula (1) where A1 and A2 are identical, may be represented schematically by the following formulas
The new bis-oxazoles of the general formula (1) are valuable products suitable, for example, as intermediates for the manufacture of dyestuffs and optical brighteners, as scintillators for ultraviolet light, as sensitizers for various photographic purposes, such as electrophotographic reproduction or for supersensitizing. In the form of finely disperse solutions the new bis-oxazoles of the composition defined above display a more or less distinct fluorescence and may be used above all for optically brightening a wide variety of organic materials. Good results are obtained, for example, in brightening acrylic resin lacquers, alkyd resin lacquers, cellulose ester lacquers, for example acetylcellulose lacquers or nitrocellulose lacquers. The new bis-oxazoles are especially suitable for optically brightening synthetic fibers, for example from cellulose esters such as cellulose propionate or acetylcellulose (cellulose diacetate or triacetate; acetate rayon), from polyamides (for example nylon) and especially those from polyesters or from polyolefines such as polyethylene and polypropylene, as well as films, foils, ribbons or shaped articles from these materials or other materials such as polystyrene, polyvinyl cHloride, polyvinylidene chloride, polyvinyl alcohol or polyvinyl esters of organic acids, for example polyvinyl acetate. The new bis-oxazoles may also be used for brightening natural fibers, such, for example, as cotton and wool. If the present process is to be used for optically brightening fibers - which may be in the form of staple fibers or filaments, in the crude state or in the form of hanks or woven fabrics - it is advantageously carried out in an aqueous medium in which the compounds concerned are suspended. If desired, the treating liquors may further contain a dispersant, for example soaps, polyglycol ethers of fatty alcohols, fatty amines or alkylphenols, cellulose sulfite waste liquor or condensation products of formaldehyde with (possibly alkylated) naphthalenesulfonic acids. It has been found to be especially advantageous to work in a neutral, weakly alkaline or acid bath. Likewise, it is advantageous to perform the treatment at an elevated temperature from about 50* to 100* C for example at the boiling temperature of the bath or near it (at about 90* C). The improvement according to this invention can also be achieved with solutions in organic solvents. The new bis-oxazoles to be used in the present process may also be added to, or incorporated with, the materials before or during their shaping. Thus, they may be added to the moulding compositions used for the manufacture of films, foils, ribbons or shaped articles, or they may be dissolved or finely dispersed in the spinning mass before spinning. The new brighteners may also be added to the reaction mixtures before or during the polycondensation leading, for example, to polyamides or polyesters, or before or during the polymerization of monomers, for example vinyl acetate or styrene, to the polymerization masses. The new bis-oxazoles are distinguished by their especially good thermostability. The proportion of the new bis-oxazoles to be used, referred to the weight of the material to be optically brightened, may vary within wide limits. Even a very small amount, in certain cases for instance as little as 0.01%, may produce a distinct and durable effect. It is, however, also possible to use an amount of up to about 1%. The new bis-oxazoles may be used as brighteners also as follows: a. In admixture with dyestuffs or pigments or as additives to dyebaths, or printing, discharge or resist pastes. Furthermore also for after-treating dyeings, prints or discharge effects. b. In admixture with chemical bleaches or as additives to bleaching baths. c. In admixture with dressing agents such as starch or synthetic dressings. The products of this invention may also be used with advantage to produce a crease-resistant finish by adding them to the liquors used for this purpose. d. In combination with detergents. The detergents and brighteners may be added to the washing liquors separately. It is also of advantage to use detergents that as such contain the brightener. Suitable detergents are, for example, soaps, salts of sulfonate detergents, for example of sulfonated benzimidazoles substituted on the two-carbon atom by higher alkyl radicals; also salts of monocarboxylic acid esters of the 4-sulfophthalic acid with higher fatty alcohols; also salts of fatty alcohol sulfonates, alkyl-aryl-sulfonic acids or condensation products of higher fatty acids with aliphatic hydroxysulfonic or aminosulfonic acids. Furthermore, there may be used nonionic detergents, for example polyglycol ethers derived from ethylene oxide and higher fatty alcohols, alkylphenols or fatty amines. If the present process is combined with other treatment or improving operations, the combined treatment is advantageously carried out with the aid of suitable preparations. These stable preparations contain compounds of the above formula (1) as well as dispersants, detergents, dyestuffs, pigmentS or dressing agents. The compounds of the above formula (1) may also be used after having been fixed on a finely dispersed vehicle. Parts and percentages in the following Examples are by weight unless otherwise indicated. The invention concerns novel bis-azoles of the general formula WHEREIN R is a para-phenylene radical which may be substituted and A1 and A2 are benzo radicals which may be substituted. 1 The present invention provide new, valuable bis-oxazoles of the general formula WHERE R represents a para-phenylene radical which may be substituted, and A1 and A2 are identical or different and each represents a benzene radical which may be substituted and is condensed with the oxazole ring in the manner indicated by the valency lines. From among these new bis-oxazoles of the formula (1) there may be mentioned, for example, those of the formula WHERE X1 and X3 are identical or different and each represents a hydrogen atom, a halogen atom such as chlorine or fluorine, a phenyl group, a saturated non-aromatic hydrocarbon radical containing up to 12 carbon atoms, a phenylalkyl group, a cyanoalkyl, carboxyalkyl or carbalkoxyalkyl group containing up to 12 carbon atoms, such as cyanoethyl, cyanopropyl, carboxyethyl, carboxypropyl or carbomethoxyethyl, or a carboxylic acid, carboxylic acid ester, carboxylic acid amide or carboxylic acid hydrazide group, and X2 and X4 are identical or different and each represents a hydrogen atom or an alkyl group containing one to four carbon atoms, and X1 and X2 and/or X3 and X4 together with two vicinal carbon atoms of the benzene ring may also form a six-membered alicycle, and X5 stands for a hydrogen atom, a halogen atom, more especially chlorine, or an alkyl group containing one to four carbon atoms. Saturated non-aromatic hydrocarbon radicals containing up to 12 carbon atoms are the linear or branched alkyl groups of the formula (3) -CnH2n 1 where n is a whole positive number from one to 12; furthermore cycloalkyl groups, more especially cyclohexyl; particularly suitable aralkyl radicals are, for example, phenylalkyl radicals of the formula WHERE M 1, 2 OR 3, AND ABOVE ALL PHENYLALKYL RADICALS OF THE FORMULA WHERE W1 and W2 are identical or different and each represents a hydrogen atom or a methyl group. From among the new bis-oxazoles of the composition defined above there may be especially mentioned those of the formula WHERE X6 and X7 are identical or different and each represents a hydrogen or halogen atom, a phenyl or phenylalkyl group, a saturated non-aromatic hydrocarbon radical containing up to 12 carbon atoms, a cyanoalkyl, carboxyalkyl or carbalkoxyalkyl group containing up to 12 carbon atoms, or a carboxylic, carboxylic acid alkyl ester, carboxylic acid amide or carboxylic acid hydrazide group; furthermore the compounds of the formula WHERE ONE OF THE TWO SYMBOLS X8 and X9 represents a branched alkyl group containing three to 12, preferably four to eight, carbon atoms and the other is a hydrogen atom, a halogen atom especially chlorine, a linear or branched alkyl group containing up to 12 carbon atoms such as methyl, ethyl, isopropyl or tertiary butyl or phenyl group; and finally the bis-oxazoles of the formula where one of the two symbols X10 and X11 represents a carboxyl group, a carboxylic acid alkyl ester group containing preferably two to nine carbon atoms, or a carboxylic acid amide group and the other represents a hydrogen atom, a lower alkyl group containing one to four carbon atoms such as methyl or tertiary butyl, or a carboxyl group, a carboxylic acid alkyl ester group containing preferably two to nine carbon atoms or a carboxylic acid amide group. The new bis-oxazoles of the formula (1) can be prepared by known methods. According to one manufacturing process, for example, 1 mol of a para-carboxybenzaldehyde of the formula - where R represents a possibly substituted para-phenylene raidcal-is condensed with 1 mol of a 2-methylbenzoxazole of the formula (where A1 has the same meaning as in formula (1)) to form a carboxylic acid of the formula and then 1 mol of this carboxylic acid of the formula (11) is reacted with 1 mol of an ortho-hydroxyamino compound of the formula (where A2 represents a possibly substituted benzene radical) at an elevated temperature, for example at 120* to 260* C and preferably in the presence of a catalyst, especially boric acid. The two-stage process referred to above, which is particularly suitable for the manufacture of compounds in which the two benzoxazolyl radicals carry different substituents, may be represented by the following scheme of formulas: