| Patent Number |
Title Of Patent |
Date Issued |
| 5646257 |
Azodyestuffs, their preparation and their use |
July 8, 1997 |
| The new dyestuffs of the formula (I) ##STR1## wherein the substituents R and R.sup.1 and the index n have the meaning given in the description, are outstandingly suitable for dyeing and printing cellulose-containing materials, in particular for the preparation of recording liquid |
| 5501710 |
Copper phthalocyanine dyestuffs and their use |
March 26, 1996 |
| The novel copper phthalocyanine dyestuffs of the formula (I) ##STR1## in which CuPc represents a copper phthalocyanine radical,W represents branched or straight-chain C.sub.9-16 -alkylene,a represents 2 to 4,b represents 0 to 2, andthe sum of a and b is 3 to 4,are suitable for dyeing and pri |
| 5489330 |
Copper phthalocyanine liquid finished preparation |
February 6, 1996 |
| The new aqueous finished preparations of copper phthalocyanine dyestuffs comprising a dyestuff of the formula ##STR1## where CuPc, A, R.sup.1, R.sup.2, x and y have the meaning given in the description, are storage-stable and are outstandingly suitable for dyeing and printing cel |
| 5459246 |
Reactive dyestuffs containing hydroxy naphthalene disulphonic acids |
October 17, 1995 |
| New reactive dyestuffs which, in the form of the free acid, correspond to the following formula ##STR1## wherein the substituents have the meaning given in the description, are suitable for dyeing and printing materials containing hydroxyl groups or amide groups, in particular ce |
| 4997740 |
Electrophotographic toners with substituted 3-amino-1-imino-isoindolenine salts |
March 5, 1991 |
| The invention relates to positively charged electrophotographic toners which, in addition to customary resin and pigment particles, contain an additive which intensifies the cationic charge, of the general formula ##STR1## wherein R.sup.1 and R.sup.2 independently of one another repr |
| 4978747 |
Colorants obtained by reacting a NH.sub.2 -containing dyestuff with a diisocyanate followed by r |
December 18, 1990 |
| Colorants are obtained by reacting a dyestuff which is free from ionic groups and has.gtoreq.2 NH.sub.2 groups which are preferably arranged in such a manner that they do not participate in the resonance of the chromophore with such an amount of a (cyclo)aliphatic diisocyante so as to |
| 4892950 |
Process for the preparation of naphthalene-1,8-dicarboximides |
January 9, 1990 |
| Process for the preparation of naphthalene-1,8-dicarboximide which is optionally substituted in the naphthalene ring, characterized in that naphthalene-1,8-dicarboxylic anhydride which is optionally substituted in the naphthalene ring is reacted with an ammonium salt in an aqueous medium |
| 4837320 |
One-amine-2-sulpho-4-[(4-halo-6-amino triazinyl-2)aminocyclohexylamino]anthraquinone reactive dy |
June 6, 1989 |
| Dyestuffs of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sub.3 is phenyl substituted with sulpho have the meaning given in the description, and their use for the dyeing and printing of textile materials containing hydroxyl g |
| 4806640 |
Triphendioxazine reactive dyestuffs |
February 21, 1989 |
| Dyestuffs of the formula ##STR1## having the substituent meanings mentioned in the description, are suitable for dyeing and printing hydroxyl- or carbamoyl-containing materials, on which they produce light- and wet-fast dyeings and prints respectively. |
| 4676803 |
Reactive azo dyestuffs, free from anionic groups and containing a basic group and halogenotriazi |
June 30, 1987 |
| The invention is directed to reactive azo dyestuffs, free from anionic groups and which contain a basic group and a halogenotriazinyl radical and are of the general formula ##STR1## in which D is the radical of an organic azo dyestuff which is free from anionic groups and is pref |
| 4665179 |
Triphendioxazine dyestuffs |
May 12, 1987 |
| Dyestuffs of the formula ##STR1## with the substituent meanings mentioned in the description, are suitable for dyeing and printing hydroxyl- and amido-containing textile materials. To prepare these dyestuffs, new intermediates of the formula ##STR2## are used. |
| 4652660 |
Process for preparing a thioindigo derivatives comprising cyclizing in a liquid mixture of an al |
March 24, 1987 |
| Process for preparing thioindigo compounds of the formula ##STR1## in which A and B denote identical or different, optionally substituted benzene rings or benzene rings to which may be joined further carbocyclic and heterocyclic rings,characterized in that compounds of the formulae |
| 4622396 |
Triphendioxazine dyestuffs |
November 11, 1986 |
| The present invention relates to dyestuffs of the formula ##STR1## wherein A=a substituent,B=H or a substituent, with the proviso that at least one of these substituents contains a fibre-reactive group, andR.sub.1 -R.sub.4 =H or a substituent.Preferred dyestuffs I are those which contain |
| 4588810 |
Basic triphendioxazine dyestuffs |
May 13, 1986 |
| Basic triphendioxazine dyestuffs of the formula ##STR1## wherein R.sub.1 and R.sub.2, independently of each other, each denote hydrogen, halogen, alkyl, cyclohexyl, aryl, alkoxy, aryloxy, CN, CONH.sub.2, CONH-alkyl, CON(alkyl).sub.2, CONH-aryl, COOalkyl, NH--CO-alkyl, NH--CO-aryl |
| 4555580 |
Process for the preparation of thioindigo compounds |
November 26, 1985 |
| Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different, optionally substituted benzene rings or benzene rings to which further carbocyclic and heterocyclic rings can be fused,characterized in that compounds of the |
| 4503224 |
Halogenotriazinyl dyestuffs |
March 5, 1985 |
| Reactive dyestuffs which are free from anionic groups, in particular sulpho and carboxyl groups, and contain a basic group and a halogenotriazinyl radical, and their use for dyeing and printing synthetic fibre materials. The dyeing obtained are distinguished by good fastness properties, |
| 4492790 |
Vat dyestuffs of the trisanthraquinonylaminotriazine series |
January 8, 1985 |
| Vat dyestuffs containing at least 80% by weight of one or more of the compounds of the formula ##STR1## wherein A and B independently of one another represent --NHV, --NHW or --NHZ,in whichV represents a radical of the formula ##STR2## W represents a radical of the formula |
| 4474697 |
Fluorotriazine-group-containing azo dyestuffs |
October 2, 1984 |
| Reactive dyestuffs of the formula ##STR1## wherein R, D, R.sub.1, R.sub.2 and n have the meaning indicated in the description,and their use for dyeing textile materials containing hydroxyl groups and textile materials containing nitrogen, in particular for textile materials made |
| 4446067 |
Azo reactive dyestuffs |
May 1, 1984 |
| Dyestuffs of the formula ##STR1## wherein D, R, R.sub.1 and R.sub.2 have the meaning indicated in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic p |
| 4443369 |
Sulphur dyestuffs |
April 17, 1984 |
| Sulphur dyestuffs which can be obtained by sulphurizing, in a manner which is in itself known, the residual mixtures obtained on dinitrating anthraquinone or on dinitrating by-products from the preparation of 1-nitroanthraquinone and partially isolating 1,5- and 1,8- and, if appropri |
| 4400504 |
Dioxazine reactive dyestuffs |
August 23, 1983 |
| The invention relates to new dioxazine reactive dyestuffs of the formula ##STR1## a process for their preparation and their use in dyeing and printing fibre materials which contain hydroxyl groups or amide groups.In formula (I):D denotes a radical of the dioxazine system of the formula |
| 4377688 |
Anthraquinone reactive dyestuffs, their preparation and their use for dyeing materials containin |
March 22, 1983 |
| Dyestuffs of the formula ##STR1## wherein X, R, R.sub.1, R.sub.2 and R.sub.3 have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthe |
| 4355163 |
Anthraquinone reactive dyestuffs |
October 19, 1982 |
| Dyestuffs of the formula ##STR1## wherein X, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have the meaning indicated in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk |
| 4332938 |
Anthaquinone reactive dyestuffs, their preparation and their use for dyeing materials containing |
June 1, 1982 |
| Dyestuffs of the formula ##STR1## wherein R.sub.1 and R.sub.2 have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or po |
| 4299966 |
Process for the preparation of 4,4',7,7'-tetrachlorthioindigo in pigment form |
November 10, 1981 |
| 4,4',7,7'-Tetrachlorothioindigo can be obtained in a form directly suitable for use as a pigment if the oxidation of 3-hydroxy-4,7-dichloro-1-thionaphthene is performed in an alkaline medium in the presence of oxygen or an oxygen-containing gas. |
| 4294580 |
Reactive dyestuffs, their preparation and their use for dyeing materials containing OH or N |
October 13, 1981 |
| Dyestuffs of the formula ##STR1## wherein Fb, W, R.sub.1, R.sub.2, R.sub.3, n and m have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or nitrogen, such as textile fibres, filaments and fabrics of wool, silk or syn |
| 4286962 |
Phthalocyanine reactive dyestuffs, their preparation and their use for dyeing materials containi |
September 1, 1981 |
| Dyestuffs of the formula ##STR1## wherein the substituents have the meaning indicated in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or p |
| 4273553 |
Anthraquinone reactive dyestuffs |
June 16, 1981 |
| Dyestuffs of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, m, n, p and X have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and woven fabrics of |
| 4268267 |
Phthalocyanine reactive dyestuffs |
May 19, 1981 |
| Dyestuffs of the formula ##STR1## wherein Pc, R.sub.1, R.sub.2, R.sub.3, R.sub.4, Ar, R.sub.5, R.sub.6, a, b and c have the meaning indicated in the description, and their use for dyeing and printing materials which contain hydroxyl or amide groups, such as textile fibres, filame |
| 4267107 |
Reactive dyestuffs |
May 12, 1981 |
| Phthalocyanine reactive dyestuffs of the formula ##STR1## wherein Pc, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, B, R.sub.6, R.sub.7, R.sub.8, a, b and c have the meaning indicated in the description,and their use for dyeing textile materials containing hydroxyl groups and text |
| 4260778 |
Process for the preparation of thioindigo compounds |
April 7, 1981 |
| Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different optionally substituted benzene rings or benzene rings onto which further carbocyclic and heterocyclic rings are fused,characterized in that compounds of the f |
| 4259248 |
Process for the preparation of mixtures of dinitroanthraquinones with a high content of 1,5- and |
March 31, 1981 |
| A process has been developed for the preparation of mixtures of dinitroanthraquinones with a high content of 1,5- and 1,8- dinitroanthraquinone by nitration with nitric acid in the presence of sulphuric acid with heating wherein anthraquinone, 1-nitroanthraquinone or a mixture of the |
| 4255325 |
Reactive dyestuffs |
March 10, 1981 |
| Reactive dyestuffs of the formulawhereinD=the radical of an organic dyestuff,m=1-4 andT= ##STR1## wherein X and Y=a direct bond or a bridge member,W= ##STR2## acyl=an acyl radical and R.sub.1 -R.sub.3 =H, alkyl or aralkyl,the radical T being bonded, via X, to a C atom of an aromatic- |
| 4242259 |
Anthraquinone-azo reactive dyestuffs |
December 30, 1980 |
| Dyestuffs of the formula ##STR1## wherein D, W, R.sub.1, R.sub.2, R.sub.3, x and D' have the meaning indicated in the description, and their use for dyeing and printing textile materials containing hydroxyl groups and textile materials containing nitrogen, in particular textile m |
| 4214082 |
Anthraquinone reactive dyestuffs |
July 22, 1980 |
| Dyestuffs of the formula ##STR1## wherein S, m, X, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and n have the meaning indicated in the description, and their use for dyeing and printing textile materials containing hydroxyl groups and textile materials containing nitrogen, in particular t |
| 4213909 |
Process for the preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid II |
July 22, 1980 |
| A process for the preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid or an alkali metal salt thereof by converting 1-aminoanthraquinone (which can be obtained by reduction of 1-nitroanthraquinone with sodium sulfide and/or sodium bisulfide or reaction of the 1-nitroanthraquinone |
| 4206306 |
Reactive phthalocyanine dyestuffs containing a fluorotriazinyl group attached via a nitrogen bri |
June 3, 1980 |
| Reactive dyestuffs are disclosed having the formula ##STR1## in which D is the radical of an organic nonanthraquinoid dyestuff; R is hydrogen or lower alkyl; R.sub.1 is amino or substituted amino with substituents attached by a single bond, optionally etherified hydroxy, optional |
| 4203885 |
Process for the mononitration of anthraquinone |
May 20, 1980 |
| A process has been developed for the mononitration of anthraquinone to 1-nitroanthraquinone with nitric acid/sulphuric acid mixtures wherein anthraquinone is nitrated in a nitric acid/sulphuric acid mixture, in which the weight ratio of nitric acid to sulphuric acid is about 1:1 to a |
| 4190726 |
Polycyclic dyestuffs |
February 26, 1980 |
| In spite of their pigment character, dyestuffs of the formula ##STR1## are outstandingly suitable for dyeing synthetic fibres, in particular polyester fibres, by customary methods, strong yellow dyeings with good fastness to light and sublimation being obtained. In the abovementioned |
| 4173568 |
Process for the preparation of copper phthalocyanine |
November 6, 1979 |
| Copper phthalocyanine is obtained in high yields when phthalic acid or derivatives thereof, urea or urea derivatives, copper salts and ammonium molybdate or heated to 200.degree.-300.degree. C. without stirring, so slowly that the components are mixed sufficiently by heat convection |
| 4155921 |
Process for the isolation of 1,6- and 1,7-dinitroanthraquinone |
May 22, 1979 |
| A process has been invented for the isolation of 1,6- and 1,7-dinitroanthraquinone by treating mixtures containing these isomers with nitrobenzene. |
