Patents by Inventor Albert Stehlin
Albert Stehlin 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: 7105500Abstract: A process for the antimicrobial treatment of fiber materials, comprising applying to the fiber material an inclusion complex of a fiber-reactive cyclodextrin derivative with an antimicrobial agent selected from the group consisting of (a) halogeno-o-hydroxydiphenyl compounds or non-halogenated hydroxydiphenyl ether compounds; (b) phenol derivatives; (c) benzyl alcohols; (d) chlorohexidine and derivatives thereof; (e) C12-14alkybetaines and C8–C18fatty acid amidoaklylbetaines; (f) amphoteric surfactants; (g) trihalocarbanilides; (h) quaternary and polyquaternary compounds; and (i) thiazole compounds.Type: GrantFiled: September 6, 2001Date of Patent: September 12, 2006Assignee: Ciba Specialty Chemicals Corp.Inventors: Jianwen Mao, Albert Stehlin, Dietmar Ochs, Victor Paul Eliu
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Publication number: 20050080044Abstract: A process for the antimicrobial treatment of fiber materials, comprising applying to the fiber material an inclusion complex of a fiber-reactive cyclodextrin derivative with an antimicrobial agent selected from the group consisting of (a) halogeno-o-hydroxydiphenyl compounds or non-halogenated hydroxydiphenyl ether compounds; (b) phenol derivatives; (c) benzyl alcohols; (d) chlorohexidine and derivatives thereof; (e) C12-14alkybetaines and C8-C18fatty acid amidoaklylbetaines; (f) amphoteric surfactants; (g) trihalocarbanilides; (h) quaternary and polyquaternary compounds; and (i) thiazole compounds.Type: ApplicationFiled: September 6, 2001Publication date: April 14, 2005Inventors: Jianwen Mao, Albert Stehlin, Dietmar Ochs, Victor Eliu
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Patent number: 6521217Abstract: Disclosed is sun screen formulation, comprising (a) a micronised organic UV absorber, and (b) a cosmetically acceptable carrier, wherein the micronised organic UV absorber is present in the oil phase of the formulation. The sunscreen composition of the invention provides excellent protection of the human skin against the damaging effects of sunlight, while permitting safe tanning of the skin.Type: GrantFiled: December 20, 2000Date of Patent: February 18, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Helmut Luther, Albert Stehlin
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Patent number: 6235271Abstract: The present invention provides, as a first aspect, a sun protection agent, which is especially suitable for use in pharmaceutical or cosmetic applications, comprising a) a micronized organic UV absorber; and one, or preferably both of; b) an oil-soluble, non-micronized UV absorber and/or an inorganic micropigment; and c) a polymeric hollow sphere additive and/or a polymer selected from xanthan and/or polyvinylpyrrolidone. The present invention also provides a sunscreen composition comprising A) 0.1 to 15%, preferably 0.5 to 10% by weight, based on the total composition of a sun screen agent according to the present invention; and B) a cosmetically acceptable carrier.Type: GrantFiled: July 24, 1998Date of Patent: May 22, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Helmut Luther, Albert Stehlin, Bernd Herzog
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Patent number: 6200948Abstract: The invention discloses multifunctional textile auxiliary formulations comprising (a) 10 to 60% by weight of one or more than one nonionic surfactant of formula (1), (b) 10 to 60% by weight of the reaction product of one or more than one nonionic surfactant of formula (2) and of an ethylenically unsaturated sulfonic or carboxylic acid or an anhydride thereof, (c) 4 to 20% by weight of a hydrotropic agent, (d) 0 to 20% by weight of a nonionic surfactant of formula (3), (e) 0 to 8% by weight of a magnesium salt of an organic carboxylic acid, (f) 0 to 30% by weight of a chelating agent or sequestrant, (g) 0 to 10% by weight of a diol or polyol, and (h) 0 to 60% of water, with the proviso that the textile auxiliary formulations must contain one of components (e) to (g). The novel textile auxiliary formulations are distinguished by their low foaming properties, their storage-stability, their peroxide-stabilizing properties, their good emulsifiability and their good rewettability.Type: GrantFiled: August 8, 1997Date of Patent: March 13, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Rainer Hans Traber, Albert Stehlin, Vladimir Arnold, Rolf Kuratli, Werner Schreiber
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Patent number: 6162447Abstract: The present invention provides a microstructured cosmetic composition comprising:A) a cosmetically acceptable oil phase which is dispersed in;B) an aqueous phase comprising 0.05 to 3.0, preferably 0.2 to 1.0% by weight, based on the weight of the total composition, of a .beta.-1,3-glucan having a mean molecular weight within the range of from 1.times.10.sup.6 to 12.times.10.sup.6, preferably from 2.times.10.sup.6 to 10.times.10.sup.6 ;the oil phase A) in the microstructured cosmetic composition having a mean particle size within the range of from 0.05 to 1000 microns.Type: GrantFiled: May 1, 1998Date of Patent: December 19, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Fankhauser, Rainer Hans Traber, Dietmar Huglin, Thomas Maier, Helmut Luther, Albert Stehlin
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Patent number: 6090370Abstract: Benzotriazole derivatives of formula ##STR1## or triazines of formula ##STR2## wherein R is hydrogen or chloro; R.sub.1 is C.sub.1 -C.sub.12 alkyl or phenyl-C.sub.1 -C.sub.3 alkyl; R.sub.2 is C.sub.1 -C.sub.4 alkyl or SO.sub.3 M; A.sub.1 is a radical of formula ##STR3## R.sub.3 is a radical of formula ##STR4## R.sub.4 is halogen; or a radical of formula ##STR5## Q.sub.1 is C.sub.1 -C.sub.18 alkyl; R.sub.5, R.sub.6 and R.sub.7 are each independently of one another hydrogen; C.sub.1 -C.sub.12 alkyl; C.sub.1 -C.sub.18 alkoxy; halogen; hydroxy; or a radical of formula ##STR6## Hal.sup.- ; where the substituents are as defined herein, are distinguished by good substantivity for human hair while at the same time providing effective protection against UV radiation.Type: GrantFiled: August 26, 1997Date of Patent: July 18, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Helmut Luther, Rene Baudin, Albert Stehlin, Jurg Haase
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Patent number: 5980872Abstract: The present invention provides a method of producing a composition, suitable for use in pharmaceutical or cosmetic compositions, comprising a micronised insoluble organic UV absorber, which method comprises grinding the insoluble organic UV absorber, in coarse particle form, in a grinding apparatus, in the presence of 0.1 to 30% by weight of an alkyl polyglucoside having the formula C.sub.n H.sub.2n+1 O(C.sub.6 H.sub.10 O.sub.5).sub.x H, in which n is an integer ranging from 8 to 16 and x is the mean polymerization level of the glucoside moiety (C.sub.6 H.sub.10 O.sub.5) and ranges from 1.4 to 1.6, or an ester thereof.Type: GrantFiled: April 20, 1998Date of Patent: November 9, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Helmut Luther, Albert Stehlin, Marina Minklei
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Patent number: 5922851Abstract: Phosophonomethylated chitosans containing repeating units of formula ##STR1## wherein R.sub.1 is hydrogen or a radical of formula ##STR2## R.sub.2 is a radical of formula (1a), X.sub.1 and X.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.5 alkyl or an alkali metal ion or ammonium ion and n is 50 to 4000, have versatile utilities as sequestrants, stabilizers for bleaching agents as well as humectants in cosmetic compositions.Type: GrantFiled: March 24, 1998Date of Patent: July 13, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Martin Kuhn, Thomas Maier, Albert Stehlin
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Patent number: 5777091Abstract: Phosophonomethylated chitosans containing repeating units of formula ##STR1## wherein R.sub.1 is hydrogen or a radical of formula ##STR2## R.sub.2 is a radical of formula (1a), X.sub.1 and X.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.5 alkyl or an alkali metal ion or ammonium ion and n is 50 to 4000, have versatile utilities as sequestrants, stabilizers for bleaching agents as well as humectants in cosmetic compositions.Type: GrantFiled: November 21, 1995Date of Patent: July 7, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Martin Kuhn, Thomas Maier, Albert Stehlin
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Patent number: 5709810Abstract: Described are mercerization wetting agent compositions comprising(a) a compound of the formula ##STR1## (b) a phosphoric ester of the formula ##STR2## The mercerization wetting agent compositions of the invention are notable for good wetting power in a mercerizing bath.Type: GrantFiled: December 5, 1995Date of Patent: January 20, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Albert Stehlin, Thomas Maier
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Patent number: 5670082Abstract: There is disclosed an aqueous formulation comprising(a) a bleach stabilising component,(b) a salt of an organic carboxylic acid and(c) a preservative.The novel formulation is suitable for use as bleaching liquor for cellulosic fibre materials and is distinguished by a superior stabilising action, a very good capacity for binding heavy metal ions, a good inhibition of crystallisation, and the treated fibre materials have very good rewettability. A significant advantage of the novel formulation is its good biodegradability.Type: GrantFiled: December 9, 1994Date of Patent: September 23, 1997Assignee: Ciba-Geigy CorporationInventors: Albert Stehlin, Klaus Huber, Thomas Maier
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Patent number: 5646271Abstract: There is disclosed an aqueous formulation comprising(a) a bleach stabilizing component,(b) a salt of an organic carboxylic acid and(c) a preservative.The novel formulation is suitable for use as bleaching liquor for cellulosic fiber materials and is distinguished by a superior stabilizing action, a very good capacity for binding heavy metal ions, a good inhibition of crystallization, and the treated fiber materials have very good rewettability. A significant advantage of the novel formulation is its good biodegradability.Type: GrantFiled: June 2, 1995Date of Patent: July 8, 1997Assignee: Ciba-Geigy CorporationInventors: Albert Stehlin, Klaus Huber, Thomas Maier
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Patent number: 5559273Abstract: There is described a low-foaming, nonsilicone, aqueous textile auxiliary composition comprising(a) a homopolymer of an ethylenically unsaturated sulfonic or carboxylic acid or an anhydride thereof,(b) a nonionic surfactant of formula ##STR1## wherein R is an aliphatic radical of at least 8 carbon atoms,R.sub.1 is hydrogen, C.sub.1 -C.sub.8 alkyl, a cycloaliphatic radical of at least 5 carbon atoms, styryl, an unsubstituted or halogen substituted C.sub.1 -C.sub.10 alkylisocyanato or an unsubstituted or by a hetero atom substituted cycloalkylisocyanato or cycloalkenylisocyanato radical,"alkylene" denotes an alkylene radical of 2 to 4 carbon atoms, andp is an integer from 2 to 60, and optionally(c) a hydrotropic agent.The textile auxiliary composition is suitable for use as dispersants and for wetting, washing and/or bleaching fiber materials.Type: GrantFiled: June 7, 1995Date of Patent: September 24, 1996Assignee: Ciba-Geigy CorporationInventors: Christian Guth, Albert Stehlin, Christoph Krohnke
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Patent number: 5494486Abstract: Mercerization wetting compositions comprising a compound of the formula ##STR1## where R.sub.1 is hydroxyl or --SO.sub.3 M,R.sub.2 is C.sub.4 -C.sub.18 alkyl,M is an alkali metal,n is 0 or 1, andm is from 2 to 6 are described. The mercerization wetting compositions of the invention are high-wetting and low-foaming. Moreover, the compounds are readily biodegradable.Type: GrantFiled: June 2, 1995Date of Patent: February 27, 1996Assignee: Ciba-Geigy CorporationInventors: Albert Stehlin, Thomas Maier
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Patent number: 5484553Abstract: An aqueous, storable wetting agent which is low-foaming in application and contains a nonionic surfactant selected from the group of the partially end group blocked alkoxylated fatty alcohols is described, which contains(a) 10 to 80% by weight of a nonionic surfactant of the general formula ##STR1## in which R is an aliphatic radical of at least 8 carbon atoms, R.sub.1 is hydrogen, C.sub.1 -to C.sub.8 alkyl, a cycloaliphatic radical of at least 5 carbons atoms, phenyl(lower)alkyl or styryl, "alkylene" is an alkylene radical of 2 to 4 carbon atoms and p is a number from 2 to 24 and(b) 1 to 10% by weight of a hydrotropic agent.The novel wetting agent is used in the treatment of textiles, in particular in the pre-treatment.Type: GrantFiled: December 8, 1993Date of Patent: January 16, 1996Assignee: Ciba-Geigy CorporationInventors: Christian Guth, Albert Stehlin
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Patent number: 5464547Abstract: Mercerization wetting compositions comprising a compound of the formula ##STR1## where R.sub.1 is hydroxyl or --SO.sub.3 M,R.sub.2 is C.sub.4 -C.sub.18 alkyl,M is an alkali metal,n is 0 or 1, andm is from 2 to 6 are described. The mercerization wetting compositions of the invention are high-wetting and low-foaming. Moreover, the compounds are readily biodegradable.Type: GrantFiled: August 8, 1994Date of Patent: November 7, 1995Assignee: Ciba-Geigy CorporationInventors: Albert Stehlin, Thomas Maier
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Patent number: 5456847Abstract: There are disclosed low foaming, nonsilicone aqueous textile auxiliary compositions comprising(a) a reaction product of a nonionic surfactant of formula ##STR1## wherein R is an aliphatic radical of at least 8 carbon atoms,R.sub.1 is hydrogen, C.sub.1 -C.sub.8 alkyl, a cycloaliphatic radical of at least 5 carbon atoms, lower alkylphenyl or styryl,"alkylene" denotes an alkylene radical of 2 to 4 carbon atoms, and p is an integer from 2 to 60,with a compound which contains an acid water-solubilising group,(b) a nonionic surfactant of formula (1), and, optionally,(c) a hydrotropic agent.These textile auxiliary compositions are suitable for use as dispersants and for wetting and/or washing fibre materials.Type: GrantFiled: December 22, 1993Date of Patent: October 10, 1995Assignee: Ciba-Geigy CorporationInventors: Christian Guth, Albert Stehlin
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Patent number: 5002686Abstract: Aqueous, hard water-resistant wetting agent and detergent compositions comprising (a) a mixture of monomeric and oligomeric phosphoric acid esters, (b) a water-soluble or water-dispersible copolymer, (c) a nonionic surfactant, (d) an alkali metal hydroxide and optionally (e) an antifoam. These compositions can be used as wetting agents and detergents in textile pretreatment.Type: GrantFiled: August 28, 1989Date of Patent: March 26, 1991Assignee: Ciba-Geigy CorporationInventors: Christian Guth, Albert Stehlin
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Patent number: 4844710Abstract: Aqueous textile assistants of high storage stability and hard water resistance comprising at least (a) a partial phosphoric ester, (b) a nonionic surfactant, (c) an anionic surfactant and (d) an alkali metal hydroxide. They can be used for wetting and deaerating fibre materials.Type: GrantFiled: November 30, 1987Date of Patent: July 4, 1989Assignee: Ciba-Geigy CorporationInventors: Christian Guth, Jorg Haase, Albert Stehlin