Patents by Inventor Alfred Fasciati
Alfred Fasciati has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4612369Abstract: Disazo dyes of the formula ##STR1## wherein the rings "a" either contain no further substituents and carry the azo group in the para-position to the .beta.-hydroxybutoxy group, or contain a C.sub.1 -C.sub.4 alkyl of C.sub.1 -C.sub.2 alkoxy radical in the para-position, and carry the azo group in the ortho-position, to the .beta.-hydroxybutoxy group. The dyes are specially suitable for dying and printing polyamide carpets. The dyes are distinguished by good solubility, good exhaustion and good fastness properties, including fastness to perspiration.Type: GrantFiled: January 31, 1983Date of Patent: September 16, 1986Assignee: Ciba-Geigy CorporationInventor: Alfred Fasciati
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Patent number: 4558121Abstract: The invention provides novel symmetrical and unsymmetrical disazo dyes which in the form of the free acid have the formula I ##STR1## wherein each R independently of the other represents hydrogen or an alkyl group of 1 to 4 carbon atoms,each R.sub.1 independently of the other represents hydrogen, the methyl, ethyl, hydroxyethyl or cyanoethyl radical, but especially hydrogen,each X independently of the other represents hydrogen, halogen, an alkyl or alkoxy group, each of 1 to 4 carbon atoms,each Y independently of the other represents hydrogen or an alkoxy group of 1 to 4 carbon atoms,each Z independently of the other represents hydrogen, an acylamino group or an alkyl or alkoxy group, each of 1 to 4 carbon atoms, andB represents an acyl radical.Type: GrantFiled: October 23, 1980Date of Patent: December 10, 1985Assignee: Ciba Geigy CorporationInventors: Alfred Fasciati, Arthur Buhler
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Patent number: 4248773Abstract: Novel compounds which have the formula I ##STR1## in which D is the residue of a diazo component, K is the residue of a coupling component, A is an unsubstituted or substituted 1,3- or 1,4-phenylene radical or an unsubstituted or substituted 1,4-naphthylene radical, X is an oxygen atom or sulphur atom, R is a group conferring solubility in water and n and m are each the numbers 0 or 1, with the proviso that if A is a 1,3-phenylene radical the symbol X is bonded in the p-position relative to the amino group or azo grouping of the ring B.Type: GrantFiled: November 29, 1978Date of Patent: February 3, 1981Assignee: Ciba-Geigy CorporationInventors: Rudolf Hurter, Alfred Fasciati
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Patent number: 4193916Abstract: A heavy metal complex of an azo compound of the formula ##STR1## in which A is a substituted or unsubstituted carboxy- or sulpho-phenyl radical or a carboxy- or sulpho- naphthyl radical, p is 1 or 2, R.sub.1 is hydrogen, chlorine, bromine, nitro, alkyl, alkoxy, aryloxy or acylamino, R.sub.2 is hydrogen or alkyl, R.sub.3 is hydroxyl or amino, R.sub.4 is hydrogen, chlorine, bromine, cyano, amino, amino substituted by 1 or 2 alkyl radicals, arylamino, morpholino, pyrrolidino, piperidino, mercapto, alkylthio, arylthio, sulpho or arylsulphonyl and R.sub.5 is hydrogen, chlorine or bromine and one of the radicals R.sub.1 and --SO.sub.2 --NR.sub.2 --A is bonded to the benzene ring in the 4-position and the other is bonded to the benzene ring in the 5-position or 6-position, and 1 or 2 molecules of the azo compound of the formula (1) are bonded to one atom of copper, nickel, chromium or cobalt; such dyes being suitable for dyeing and printing polyamide materials, such as wool, silk, leather and synthetic polyamides.Type: GrantFiled: September 28, 1977Date of Patent: March 18, 1980Assignee: Ciba-Geigy CorporationInventors: Gerhard Back, Alfred Fasciati
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Patent number: 4168952Abstract: Described is a process for dyeing keratin-containing material, namely human hair, with developing dyes by applying, successively in any desired sequence or simultaneously, to the keratin-containing material to be dyed, diazo salts and coupling components, and coupling these together, which process is characterized in that thereis used as coupling component an acetoacetic acid arylamide of the formula (1), (2) or (3) ##STR1## wherein X, Y and Z independently of one another each represent hydrogen, a straight-chain or branched-chain alkyl or alkoxy group having 1-4 C atoms, or a halogen atom.Type: GrantFiled: February 24, 1978Date of Patent: September 25, 1979Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Arthur Buhler, Alfred Fasciati, Walter Hungerbuhler
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Patent number: 4165967Abstract: Described is a process for dyeing keratin-containing material with developing dyes by applying diazo salts and coupling components successively, in any desired sequence, to the material to be dyed, and coupling them with each other, characterized in that there are used as coupling components specific derivatives of hydroxypyridine or pyridone.Type: GrantFiled: August 24, 1977Date of Patent: August 28, 1979Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Arthur Buhler, Alfred Fasciati, Walter Hungerbuhler
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Patent number: 4162893Abstract: Described is a process for dyeing keratin-containing material with developing dyes by applying, successively in any desired sequence or simultaneously, to the keratin-containing material to be dyed, diazo salts and coupling components, and coupling these together, which process is characterized in that there are used coupling components of the formula ##STR1## wherein R represents an unsubstituted or substituted aryl group.Type: GrantFiled: December 21, 1977Date of Patent: July 31, 1979Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)Inventors: Arthur Buhler, Alfred Fasciati, Walter Hungerbuhler
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Patent number: 4065254Abstract: A process for the dyeing and printing of leather and various textile material with developing dyestuffs is described wherein diazo salts and specific 6-membered, heterocyclic coupling components having one ring nitrogen atom especially of the pyridone and pyridine types are applied, the coupling process being independent of the pH-value, i.e. it can be performed with a range of ca. pH 2 to 12, preferably at room temperature so that this is possible not only in alkaline but also in neutral or acid medium, depending on the substrate, and in that it is possible with it to produce with only one of the coupling components by means of variation of diazo salts the whole color range from light yellow to black.Type: GrantFiled: May 19, 1976Date of Patent: December 27, 1977Assignee: Ciba-Geigy CorporationInventors: Arthur Buhler, Alfred Fasciati, Karl Schlumpf
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Patent number: 4046507Abstract: New commercial packages of organic dyestuffs, characterised in that they consist of an organic dyestuff or an optical brightener in dry, pulverulent form that is provided with a wrapping, which is soluble in a solvent suitable for the preparation of a dye solution or dye paste, and with the dyestuff or optical brightener so wrapped being optionally provided with a second wrapping that is preferably impervious to water.Type: GrantFiled: September 12, 1975Date of Patent: September 6, 1977Assignee: Ciba-Geigy AGInventors: Hans Heini Zweifel, Arthur Buehler, Alfred Fasciati
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Patent number: 4001203Abstract: Heavy metal complexes can be prepared from azo compounds that contain a heterocyclic diazo component containing a complex-forming group such as hydroxyl, carboxyl, alkoxy or amino, or containing a hetero nitrogen atom able to form a coordinate bond, exemplified by quinolinyl and benzthiazolyl. The coupling component is 5-halogeno-2,3-dihydroxypyridyl where halogen is preferably chloro or bromo. The dyestuffs are useful, inter alia, for dyeing natural and synthetic polyamides such as wool and nylon. The dyeings obtained are uniform, are resistant to acid and alkali, are fast to light and to rubbing and barely change their appearance in artificial light.Type: GrantFiled: April 10, 1974Date of Patent: January 4, 1977Assignee: Ciba-Geigy AGInventors: Gerhard Back, Alfred Fasciati
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Patent number: 4001205Abstract: Azo dyestuffs containing at least one acidic group imparting solubility in water and the grouping of the formula ##SPC1##Type: GrantFiled: November 1, 1973Date of Patent: January 4, 1977Assignee: Ciba-Geigy AGInventors: Arthur Buehler, Alfred Fasciati, Gerd Hoelzle
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Patent number: 3978037Abstract: 1:2 Chromium complex dyes of the formula ##SPC1##Wherein A represents the radical of a diazo component, B represents the radical of a coupling component, --X-- is --O--, --NH--, ##EQU1## --Y-- is --O-- or --COO--, R.sub.1 is hydrogen or alkyl and R.sub.2 is a radical of the benzene or naphthalene class which is substituted by a carboxy or a sulpho group, K.sup.+ represents a cation, and wherein the benzene ring b can carry a further fused benzene ring or can be substituted by halogen, nitro, low molecular alkyl or alkoxy as well as arylazo groups, and the radicals A and B are devoid of --SO.sub.3 H and --COOH groups. These dyes are useful for dyeing and printing natural and synthetic polyamides to produce level dyeings of good fastness, especially fastness to pulling, water and perspiration.Type: GrantFiled: December 4, 1974Date of Patent: August 31, 1976Assignee: Ciba-Geigy CorporationInventors: Fabio Beffa, Alfred Fasciati
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Patent number: 3971738Abstract: Azo compounds of the formulaD-N=N-K (1)wherein D denotes the radical of an aromatic diazo component and K denotes the radical of a halogeno-2,3-dihydroxy-pyridine, as well as heavy metal complexes of azo compounds of the formula (1).Type: GrantFiled: November 14, 1973Date of Patent: July 27, 1976Assignee: Ciba-Geigy AGInventors: Alfred Fasciati, Gerhard Back
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Patent number: 3956263Abstract: Water-soluble copper-, chromium-, cobalt- or nickel- complexes of dyestuffs containing at least one sulfo group and a group of the formula ##SPC1##Are disclosed. These dyequffs are useful in dyeing man-made fibers, especially wool, and are fast to light and wet treatments.Type: GrantFiled: November 1, 1973Date of Patent: May 11, 1976Assignee: Ciba-Geigy AGInventors: Arthur Buehler, Alfred Fasciati, Gerd Hoelzie
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Patent number: 3933785Abstract: A mixed metal complex compound that contains for every atom of a trivalent metal one molecule of an azo or azomethine compound which contains a complex-forming group in the ortho, ortho'-positions to the azo or azomethine bridge, and one molecule of an azo or azomethine compound acting as trifunctional ligand which contains a complex-forming group in the ortho-position to the azo or azomethine bridge and contains two non-ionisable co-ordination positions. These mixed metal complexes dye nitrogenous fibers such as wool in level shades which are stable to acids and alkalis and have good fastness to light, rubbing, perspiration and water.Type: GrantFiled: October 29, 1973Date of Patent: January 20, 1976Assignee: Ciba-Geigy AGInventors: Gerhard Back, Alfred Fasciati
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Patent number: 3932378Abstract: Disazo compounds of the formula ##SPC1##In which R.sub.1 represents a sulphobenzene or sulphonaphthalene radical, B.sub.1, B.sub.2, E.sub.1 and E.sub.2 each represents a hydrogen atom, a low molecular alkyl or alkoxy radical, R.sub.2 represents a low molecular alkylene radical, X represents a functional radical, and --OR.sub.2 --X is in the ortho- or para-position to the azo bridge, and process for the preparation of these dyestuffs. These dyestuffs provide natural and synthetic polyamides, e.g. wool and nylon, with dyeings of excellent general fastness properties.Type: GrantFiled: August 18, 1971Date of Patent: January 13, 1976Assignee: Ciba-Geigy AGInventor: Alfred Fasciati