Patents by Inventor Andre Pugin
Andre Pugin 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: 4872915Abstract: The invention relates to orthorhombic lead chromate pigments of greenish hue, which contain lead chromate and lead sulfate in the weight ratio of 60:40 to 100:0, and which are characterized by a tinctorial strength of 0.067 to 0.103 at a standard depth of shade of 1/25 in accordance with DIN 53 235 and by an opacity factor Y.sub.black /Y.sub.white of 0.78 to 0.87. These pigments are obtainable by mixing an aqueous solution of a chromate and, if necessary, of a sulfate, under high turbulence.Type: GrantFiled: March 3, 1987Date of Patent: October 10, 1989Assignee: Ciba-Geigy CorporationInventors: Leonardus J. H. Erkens, Gerben P. Algra, Jacobus M. H. Snijders, Herman J. J. M. Geurts, Andre Pugin
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Patent number: 4769310Abstract: A method of laser marking ceramic materials, glazes, glass ceramics and glasses that contain at least one radiation-sensitive additive, utilizing a laser beam as radiation energy source which is either applied to, or focused on, the surface of the material to be marked in accordance with the form of the graphic symbols to be reproduced, such that a change in color is induced at the irradiated areas, wherein the wavelength of said laser beam used as energy source is in the near UV and/or visible range and/or infra-red range, and the radiation-sensitive additive is an inorganic pigment.Type: GrantFiled: January 30, 1987Date of Patent: September 6, 1988Assignee: Ciba-Geigy CorporationInventors: Heinrich Gugger, Fritz Herren, Manfred Hofmann, Andre Pugin
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Patent number: 4530924Abstract: A process for combating micro-organisms in or on organic or inorganic substrates and for protecting the said substrates against attack by micro-organisms, which comprises treating the substrates with a water-soluble phthalocyanine derivative, in the presence of oxygen and water and while irradiating with light in the infra-red and/or visible range, antimicrobical agents containing water-soluble phthalocyanine compounds as well as new phthalocyanine compounds are described.Type: GrantFiled: October 30, 1981Date of Patent: July 23, 1985Assignee: Ciba-Geigy CorporationInventors: Rudolf Polony, Gerhard Reinert, Gerd Holzle, Andre Pugin, Rodolphe Vonderwahl
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Patent number: 4460768Abstract: 1:1 Nickel complexes of azines of the formula I or of a tautomer thereof ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 is methyl or carbamoyl, R.sub.3 is hydrogen or chlorine, R.sub.4 is hydrogen, chlorine, methyl, trifluoromethyl or sulfamoyl, R.sub.5 is hydrogen or chlorine, R.sub.6 is hydrogen, chlorine, bromine, methyl, methoxy, trifluoromethyl, carbamoyl or alkanoylamino containing 2 to 4 carbon atoms, with the proviso that, if R.sub.2 is carbamoyl, at least two of the substituents R.sub.3 to R.sub.6 are halogen atoms and/or trifluoromethyl groups, color plastics, lacquers and printing inks in orange to red shades of outstanding fastness properties.Type: GrantFiled: December 16, 1981Date of Patent: July 17, 1984Assignee: Ciba-Geigy CorporationInventors: Abul Iqbal, Paul Lienhard, Andre Pugin
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Patent number: 4355159Abstract: 1:1 Nickel complexes of azines of the formula I or of a tautomer thereof ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 is methyl or carbamoyl, R.sub.3 is hydrogen or chlorine, R.sub.4 is hydrogen, chlorine, methyl, trifluoromethyl or sulfamoyl, R.sub.5 is hydrogen or chlorine, R.sub.6 is hydrogen, chlorine, bromine, methyl, methoxy, trifluoromethyl, carbamoyl or alkanoylamino containing 2 to 4 carbon atoms, with the proviso that, if R.sub.2 is carbamoyl, at least two of the substituents R.sub.3 to R.sub.6 are halogen atoms and/or trifluoromethyl groups, color plastics, lacquers and printing inks in orange to red shades of outstanding fastness properties.Type: GrantFiled: May 13, 1980Date of Patent: October 19, 1982Assignee: Ciba-Geigy CorporationInventors: Abul Iqbal, Paul Lienhard, Andre Pugin
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Patent number: 4318883Abstract: A process for combating micro-organisms in or on organic or inorganic substrates and for protecting the said substrates against attack by micro-organisms, which comprises treating the substrates with a water-soluble phthalocyanine derivative, in the presence of oxygen and water and while irradiating with light in the infra-red and/or visible range, antimicrobical agents containing water-soluble phthalocyanine compounds as well as new phthalocyanine compounds are described.Type: GrantFiled: February 15, 1980Date of Patent: March 9, 1982Assignee: Ciba-Geigy CorporationInventors: Rudolf Polony, Gerhard Reinert, Gerd Holzle, Andre Pugin, Rodolphe Vonderwahl
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Patent number: 4237292Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.Type: GrantFiled: October 26, 1978Date of Patent: December 2, 1980Assignee: Ciba-Geigy CorporationInventors: Francois L'Eplattenier, Andre Pugin, Jost von der Crone
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Patent number: 4237293Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.Type: GrantFiled: October 26, 1978Date of Patent: December 2, 1980Assignee: Ciba-Geigy CorporationInventors: Francois L'Eplattenier, Andre Pugin, Jost von der Crone
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Patent number: 4237286Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.Type: GrantFiled: October 26, 1978Date of Patent: December 2, 1980Assignee: Ciba-Geigy CorporationInventors: Francois L'Eplattenier, Andre Pugin, Jost von der Crone
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Patent number: 4166718Abstract: A process for bleaching textiles which comprises treating stained textiles in an aqueous bath containing at least one water-soluble aluminium phthalocyanine, under irradiation with light and in the presence of oxygen, while either irradiating the bleaching bath direct or subsequently irradiating the moist textiles outside the bath, as well as water-soluble aluminium phthalocyanines containing detergent compositions are described.Type: GrantFiled: March 20, 1978Date of Patent: September 4, 1979Assignee: Ciba-Geigy CorporationInventors: Gerhard Reinert, Gerd Holzle, Andre Pugin
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Patent number: 4132708Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.Type: GrantFiled: March 3, 1977Date of Patent: January 2, 1979Assignee: Ciba-Geigy CorporationInventors: Francois L'Eplattenier, Andre Pugin, Jost VON DER Crone
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Patent number: 4111947Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.Type: GrantFiled: March 1, 1977Date of Patent: September 5, 1978Assignee: Ciba-Geigy CorporationInventors: Francois L'Eplattenier, Andre Pugin, Jost VON DER Crone
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Patent number: 4083687Abstract: Process for dyeing thermoplastics having no reducing action, in which process there are used Mg, Zn, Cd and Ni salts of azo dye sulphonic acids of the formula ##STR1## wherein A represents a phenyl or naphthyl group optionally substituted by halogen atoms, by alkyl or alkoxy groups containing 1 - 4 C atoms, or by trifluoromethyl groups, X represents a hydrogen atom or a carboxy group, and n represents the number 1 or 2.The resulting dyeings are characterized by excellent fastness properties, especially fastness to light and to migration.Type: GrantFiled: June 18, 1976Date of Patent: April 11, 1978Assignee: Ciba-Geigy CorporationInventors: Andre Pugin, Volkhard Wiese
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Patent number: 4052410Abstract: Iminoisoindolinone pigments of the formula ##STR1## wherein X represents halogen atoms,Y represents a halogen atom, an alkoxy, cycloalkoxy, aralkoxy, aryloxy, alkylthio or arylthio group,R represents an aromatic radical containing a cyclic bound -CONH group, andQ represents an O-atom or the group .dbd.N-Rare useful for coloring plastics and lacquers in yellow shades having excellent fastness properties.Type: GrantFiled: July 12, 1976Date of Patent: October 4, 1977Assignee: Ciba-Geigy CorporationInventors: Jost von der Crone, Andre Pugin, Rudolf Mory
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Patent number: 4043999Abstract: Iminoisoindolinone dyestuffs of the formula ##STR1## wherein X denotes chlorine or bromine atoms, X.sub.1 denotes a halogen atom or an alkyl, alkoxy, nitrile, trifluoromethyl or alkylsulphonyl group, Y.sub.1 denotes a hydrogen or halogen atom or an alkyl or alkoxy group, X.sub.2 denotes a hydrogen or halogen atom or an alkyl or alkoxy group and Y.sub.2 denotes a hydrogen or halogen atom or an alkyl or alkoxy group, or the radicals X.sub.2 and Y.sub.2 together form a fused benzene ring, and wherein, in the benzene rings A and B, a hydrogen atom is present in at least one o-position relative to the azomethine group were prepared. The dyestuffs may be used for pigmenting high molecular weight organic materials such as cellulose ethers, polyamides and polyesters. The pigments have outstanding fastness to light, migration and weathering.Type: GrantFiled: March 3, 1976Date of Patent: August 23, 1977Assignee: Ciba-Geigy CorporationInventors: Ernst Model, Andre Pugin
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Patent number: 4024132Abstract: Azomethine pigments of the formula ##STR1## and metal complexes thereof, wherein A denotes an isocyclic or heterocyclic aromatic radical, R denotes a H atom, an alkyl group containing 1-6 C atoms, or an aryl radical, X.sub.2 and X.sub.4 denote H atoms or halogen atoms, X.sub.1 and X.sub.3 denote H atoms or halogen atoms, alkoxy or alkylmercapto groups containing 1-6 C atoms, cycloalkoxy groups containing 5-6 C atoms, or aralkoxy, aryloxy or arylmercapto groups, it being possible for one of the substituents X.sub.1 -X.sub.4 also to be a nitro group which are useful for pigmenting of high molecular material.Type: GrantFiled: June 7, 1976Date of Patent: May 17, 1977Assignee: Ciba-Geigy CorporationInventors: Francois L'Eplattenier, Andre Pugin, Laurent Vuitel
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Patent number: 4022770Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.Type: GrantFiled: January 30, 1975Date of Patent: May 10, 1977Assignee: Ciba-Geigy CorporationInventors: Francois L'Eplattenier, Andre Pugin, Jost VON DER Crone
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Patent number: 4016157Abstract: Bis-hydrazone metal complexes of the formula ##STR1## wherein A denotes an isocyclic or heterocyclic radical, R denotes a H atom, an alkyl group or an aryl radical, M denotes a divalent transition metal and zinc or cadmium, X.sub.1 and X.sub.2 independently of one another represent alkyl, cycloalkyl, aralkyl or aryl radicals, or conjointly form a fused carbocyclic or heterocyclic aromatic ring, L denotes a ligand having one or more coordinating N or S atoms, and n denotes the number 1 - 5, are useful for coloring plastic and lacquers in fast yellow to red shades.Type: GrantFiled: August 26, 1975Date of Patent: April 5, 1977Assignee: Ciba-Geigy CorporationInventors: Laurent Vuitel, Francois L'Eplattenier, Andre Pugin
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Patent number: 4008225Abstract: Process for the manufacture of bis-azomethine metal complex colorants of the formula ##STR1## wherein A denotes an isocyclic or heterocyclic aromatic radical, X denotes an isocyclic or heterocyclic aromatic radical to which the N-atoms are bonded in the o-position or peri-position, or an alkylene radical containing 2-8 C atoms, and M denotes a divalent transition metal ion, a zinc ion or cadmium ion, characterized in that an o-hydroxyaldimine compound of the formula ##STR2## wherein A has the abovementioned meaning and R denotes an alkyl, cycloalkyl or aryl radical, is reacted with a diamine of the formulaNH.sub.2 --X--NH.sub.2wherein X has the abovementioned meaning, in the molar ratio of 2:1, in the presence of a compound which donates a divalent transition metal cation, zinc ion or cadmium ion.Type: GrantFiled: July 28, 1975Date of Patent: February 15, 1977Assignee: Ciba-Geigy CorporationInventors: Francois L'Eplattenier, Laurent Vuitel, Andre Pugin
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Patent number: 4006162Abstract: Iminoisoinolinone pigments of the formula ##STR1## wherein R denotes an alkyl group containing 1-4 C atoms, or an aryl group, the W's denote H atoms or, conjointly denote a direct bond, the X's denote halogen atoms, the Y's and Z's denote halogen atoms, alkoxy or alkylmercapto groups containing 1-6 atoms, cycloalkoxy groups containing 5-6 C atoms, or aralkoxy, aryloxy or arylmercapto groups, which are useful for pigmenting high molecular organic material.Type: GrantFiled: May 6, 1975Date of Patent: February 1, 1977Assignee: Ciba-Geigy CorporationInventors: Ernst Model, Jost VON DER Crone, Andre Pugin