Abstract: The present invention relates to a process for the trichromatic dyeing or printing of hydroxy-group-containing or nitrogen-containing organic substrates with dye mixtures and also to such dye mixtures and hydroxy-group-containing or nitrogen-containing organic substrates dyed or printed therewith.

Abstract: According to the invention there are provided fiber-reactive dyestuffs which are compounds of the formula (I) wherein the substituents are defined as in claim 1, a process making the same and their use in dyeing or printing hydroxy-group-containing organic substrates.

Abstract: The present invention relates to a process for the trichromatic dyeing or printing of hydroxy-group-containing or nitrogen-containing organic substrates with dye mixtures and also to such dye mixtures and hydroxy-group-containing or nitrogen-containing organic substrates dyed or printed therewith.

Abstract: According to the invention there are provided fiber-reactive dyestuffs which are compounds of the formula (I) 1

Abstract: According to the invention there are provided fiber-reactive dyestuffs which are compounds of the formula (I) 1

Abstract: A new ZVS (zero-voltage-switching) snubber circuit suitable for high power boost converters used as power factor correction circuits used in AC-to-DC modules. The ZVS circuit comprises a main switch, an auxiliary switch, a load circuit, a reset circuit, a first diode, a blocking diode, and a first capacitor. The switches and the capacitor are connected in parallel. The circuit includes a blocking diode having an anode terminal connected to a drain terminal of the auxiliary switch and a cathode terminal connected to the reset circuit. At turn-off, the current tail of the main switch is taken over by the auxiliary switch. The ZVS circuit keeps the collector-emitter voltage of main switch almost zero, so that the turn-off loss is minimized.

Abstract: A new ZVS (zero-voltage-switching) snubber circuit (500) suitable for high power boost converters used as Power Factor Correction circuits used in AC-to-DC modules. The ZVS circuit comprising a main switch (S), an auxiliary switch (S1), a load circuit (LD) a reset circuit (RC), a first diode (D1), a blocking diode (d2), and a first capacitor (C1). The switches and the capacitor are connected in parallel. The circuit having an anode terminal (a2) of a blocking diode (D2) being connected to a drain terminal (d1) of the auxiliary switch and that a cathode terminal (k2) being connected to the reset circuit. At turn-off, the current tail of the main switch is taken over by the auxiliary switch. The ZVS circuit keeps the collector-emitter voltage of main switch almost zero, so that the turn-off loss is minimized.

Abstract: The application is concerned with a compound of the formula (I) ##STR1## and a process for making the same. The compound is useful as fiber-reactive dyestuff in dyeing or printing onto hydroxy- or nitrogen-containing substrates. A printing composition comprising this fiber-reactive dyestuff and a copper phthalocyanine allows to obtain dyeings with less catalytic fading.

Abstract: Fibre-reactive asymmetrical triphenodioxazine compounds conform to the formula I ##STR1## where the individual symbols are as defined in the description, and mixtures thereof and are present in the form of a free acid or as salt. They are used as reactive dyes for dyeing or printing hydroxyl-containing or nitrogenuos organic substrates, such as leather or fiber material consisting of or comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is textile material consisting of or comprising cotton.

Abstract: Novel aluminium phthalocyanine compounds of having the formula ##STR1## and their salts wherein D represents --SO.sub.2 NR.sub.a --A--SO.sub.2 --B or ##STR2## --SO.sub.2 B is a fiber-reactive group and Z is a heterocyclic fiber-reactive group having 1 or 2 labile halogens selected from fluorine or chlorine.The novel aluminium phthalocyanine compounds and their salts are fiber-reactive dyestuffs useful in dyeing or printing hydroxy-group-containing or nitrogen-containing organic substrates.

Abstract: The invention is related to compounds of formula (I) ##STR1## their salts and mixtures thereof wherein the symbols are as defined in the specification are useful as fibre-reactive dyestuffs for dyeing or printing hydroxy-group-containing or nitrogen-containing organic substrates.

Abstract: Fiber-reactive monoazo and disazo compounds of the formulaD-N.dbd.N--Kwhich compounds are in free acid or salt form, and mixtures thereof, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fiber material comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is a textile material comprising cotton.

Abstract: Fibre-reactive monoazo compounds of the formula ##STR1## which compounds are in free acid or salt form, and mixtures thereof, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fibre material comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is a textile material comprising cotton.

Abstract: Fibre-reactive 1:1 copper complexes of the formula ##STR1## which compounds are in free acid or salt form, and mixtures thereof, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fibre material comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is a textile material comprising cotton.

Abstract: Fibre-reactive monoazo compounds of the formula ##STR1## which compounds are in free acid or salt form, and mixtures thereof, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fibre material comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is a textile material comprising cotton.

Abstract: Fibre-reactive disazo compounds of the formula ##STR1## which compounds are in free acid or salt form, and mixtures thereof, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fibre material comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is a textile material comprising cotton.

Abstract: Fiber-reactive compounds of the formulaX-O.sub.2 S-W.sub.1 [F.sub.c ]W.sub.2 -NR-Z,and water-soluble salts thereof each cation of which is independently a non-chromophoric cation, and mixtures of such compounds or water-soluble salts,whereinFc is a chromophore-containing radical of a monoazo, disazo, polyazo, formazan, anthraquinone, dioxazine, phenazine or azomethine dye, which is in metal-free or metal complex form,each of W.sub.1 and W.sub.2 is independently a direct bond or a bridging group which is attached to a carbon atom of an aromatic carbocyclic ring or to a carbon or nitrogen atom of an aromatic heterocyclic ring present in F.sub.c,X is --CH.dbd.CH.sub.2 or --C.sub.2-4 alkylene--Y, wherein Y is hydroxy or a group which can be split off under alkaline conditions,R is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkyl monosubstituted by hydroxy, halo, cyano, --SO.sub.3 H, --OSO.sub.3 H or --COOH, andZ is ##STR1## with the provisos as set forth herein.

Abstract: Fibre-reactive formazan compounds, salts thereof or free acid forms thereof according to formula (I) ##STR1## in which R.sub.1 is hydrogen or --COOH, each of R.sub.2 and R.sub.4 is independently hydrogen, --COOH, --SO.sub.3 H, --NHCOCH.sub.3, --NHCOCHY.sub.2 --CH.sub.2 Y.sub.1, --NHCOCY.sub.2 .dbd.CH.sub.2 or --NHCOCH.sub.2 Y.sub.1,R.sub.3 is hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, --COOH or --SO.sub.3 H,Y.sub.1 is chlorine, bromine, --OSO.sub.3 H or --SSO.sub.3 H,Y.sub.2 is hydrogen, chlorine or bromine, andZ is ##STR2## The compounds are particularly useful in dyeing or printing hydroxy-group containing or nitrogen-containing organic substrates, including leather, fiber materials, and textiles.

Abstract: Phthalocyanine compounds which contain a heterocyclic fibre-reactive radical correspond to the formula ##STR1## in which the symbols are as defined in the specification, which compounds are in free acid or salt form, and mixtures thereof, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fibre material comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is a textile material comprising cotton.

Abstract: Metal-free compounds of the formula ##STR1## and 1:1 and 1:2 metal complexes thereof and acid addition salts of such metal-free compounds and 1:1 and 1:2 metal complexes,whereineach B is --A.sub.1 --NR.sub.7 R.sub.8 or --A.sub.1 --.sup..sym. NR.sub.7 R.sub.8 R.sub.9 A.sup..crclbar., the two B's being identical,whereineach A.sub.1 is linear or branched C.sub.2-8 alkylene,each R.sub.1 is hydrogen, C.sub.1-4 alkyl, C.sub.5-6 cycloalkyl, phenyl, benzyl or phenylethyl, the two R.sub.1 's being identical,each R.sub.2 is independently halo, hydroxy, nitro, carboxy, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,each T is hydrogen, cyano, --COOR.sub.4, --CON(R.sub.5).sub.2, --SO.sub.2 N(R.sub.5).sub.2,the two T's being identical, ##STR2## wherein each R.sub.3 is independently hydrogen, C.sub.1-4 alkyl, --N(R.sub.5).sub.2 or --CON(R.sub.5).sub.2,each R.sub.4 is C.sub.1-6 alkyl or phenyl(C.sub.1-3 alkyl),each R.sub.6 is C.sub.1-4 alkyl, andeach X.sub.a is --O--, --S-- or --NR.sub.5 --, andX.sub.