Peroxides Or Oxygen Patents (Class 8/111)
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Publication number: 20130261182Abstract: Acetyl xylan esterases and variants thereof having perhydrolytic activity are provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. Multi-component peracid generation systems comprising an enzyme catalyst having perhydrolytic activity are also provided, as are methods of using the present enzyme catalyst to produce peroxycarboxylic acids. The polypeptide having perhydrolytic activity may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, paper pulp processing, and personal care applications.Type: ApplicationFiled: March 13, 2013Publication date: October 3, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Mark Scott PAYNE, Robert DiCosimo
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Publication number: 20130158118Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a variant of the Thermotoga maritima C277T acetyl xylan esterase is provided having an improved specific activity when producing peroxycarboxylic acids in the presence of an anionic surfactant. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 12, 2012Publication date: June 20, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. DU PONT DE NEMOURS AND COMPANY
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Publication number: 20130158116Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a variant of the Thermotoga maritima C277T acetyl xylan esterase is provided having an improved specific activity when producing peroxycarboxylic acids in the presence of an anionic surfactant. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 12, 2012Publication date: June 20, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. DU PONT DE NEMOURS AND COMPANY
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Publication number: 20130158117Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a variant of the Thermotoga maritima C277T acetyl xylan esterase is provided having an improved specific activity when producing peroxycarboxylic acids in the presence of an anionic surfactant. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 12, 2012Publication date: June 20, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. DU PONT DE NEMOURS AND COMPANY
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Publication number: 20130158115Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a variant of the Thermotoga maritima C277T acetyl xylan esterase is provided having an improved specific activity when producing peroxycarboxylic acids in the presence of an anionic surfactant. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 12, 2012Publication date: June 20, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. Du Pont De Nemours And Company
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Patent number: 8460398Abstract: A two-part hair dye including a first part containing an alkali agent, a second part containing hydrogen peroxide, and a non-aerosol foamer container; wherein a liquid mixture contains Components (A) and (B) specified below, wherein the content of hydrogen peroxide in the liquid mixture is 3.60 mass % or higher, and the viscosity of the liquid mixture is 1 to 300 mPa·s. A method for dying hair, wherein a foam of the liquid mixture of the first part and the second part of the two-part hair dye is applied to hair, left to stand for 3 to 60 minutes, and then washed out. Component (A): oxidation dye; Component (B): 0.50 to 3.0 mass %, of polypropylene glycol having a weight-average molecular weight of 200 to 800.Type: GrantFiled: November 30, 2010Date of Patent: June 11, 2013Assignee: Kao CorporationInventors: Yuki Naoi, Yoshinori Saito, Toshio Ogawa
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Publication number: 20130137620Abstract: The present invention concerns the treatment of substrates with a preformed transition metal catalyst in an aqueous solution. The transitional metal catalyst is a dinuclear Mn transitional metal catalyst and its ligand has the following formula (I): and p is 3.Type: ApplicationFiled: April 15, 2011Publication date: May 30, 2013Applicant: CATEXEL LIMITEDInventors: Ronald Hage, Fabien Pierre Guy Gaulard, Kimberly Soraya Yang
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Patent number: 8444706Abstract: The present invention relates to an oxidizing composition for treatment of keratin fibers comprising a combination of; (a) at least one anionic associative copolymer, (b) at least one anionic non associative copolymer; (c) at least one peroxide agent; (d) at least one persulfate agent; (e) at least on alkalizing agent; and (f) a carrier medium suitable for hair treatment. The oxidizing composition described is suitable for composition used in conventional hair treatments such as dyeing, bleaching, and permanent waving or relaxing/straightening of the keratinous fibers, particularly human hair, requiring an oxidizing composition.Type: GrantFiled: July 24, 2012Date of Patent: May 21, 2013Assignee: The Procter & Gamble CompanyInventors: Wilfried Burg, Matthias Morand, Anette Sallwey, Manfred Schmitt
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Publication number: 20130117941Abstract: The present invention relates to the use of a composition comprising specific a-amino-ketones, H2O2, a H2O2 precursor or a peracid and optionally an activator as a bleaching mixture for textile materials or dishes either manually or in an automatic washing machine or dish washer. Further aspects of the invention are the composition comprising specific a-aminoketones and H2O2, a H2O2 precursor or a peracid and a process for bleaching of stains or of soiling on textile materials or dishes in the context of a washing process either manually or in an automatic washing machine or dish washer. Also aspects of the invention are detergent formulations comprising such a composition and novel compounds.Type: ApplicationFiled: June 21, 2011Publication date: May 16, 2013Applicant: BASF SEInventors: Markus Frey, Hauke Rohwer, Frédérique Wendeborn, Menno Hazenkamp
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Publication number: 20130102669Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. Du Pont De Nemours And Company
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Publication number: 20130102666Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. Du Pont De Nemours And Company
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Publication number: 20130102668Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. Du Pont De Nemours And Company
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Publication number: 20130102672Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E.I. Du Pont De Nemours And Company
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Publication number: 20130102670Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. Du Pont De Nemours And Company
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Publication number: 20130102665Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. du Pont de Nemours and Company
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Publication number: 20130102667Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E.I. Du Pont De Nemours And Company
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Publication number: 20130102671Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. Du Pont De Nemours And Company
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Publication number: 20130102664Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: October 22, 2012Publication date: April 25, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: E. I. du Pont de Nemours and Company
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Patent number: 8414793Abstract: A bleaching composition comprising a peroxy compound and one or more activator present in an effective amount to activate the peroxy compound, present in an amount effective to accomplish bleaching or cleaning or oxidation. The activator is a metallocarbene of the general structure (XX?C)yMLn? where M represents a metal center, C represents the carbene carbon bound to the metal center, X and X? may be the same or different and may furthermore be part of a cyclic structure, Ln? represents one or more other ligands which may or may not include one or more metal centers, and where y>1.Type: GrantFiled: May 12, 2009Date of Patent: April 9, 2013Assignee: Arkema Inc.Inventors: Michael B. Abrams, Xiawei Zhang
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Patent number: 8361951Abstract: Tris(heterocyclyl)-metal complexes and the use thereof as bleach catalysts are described.Type: GrantFiled: October 12, 2009Date of Patent: January 29, 2013Assignee: Henkel AG & Co. KGaAInventors: Andre Hätzelt, Anette Nordskog, Stefan Leopold, Peter Schmiedel, Wolfgang von Rybinski, Jörg Sundermeyer, Jan Döring
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Patent number: 8357208Abstract: Disclosed is a method for producing a modified animal fiber, the method includes step 1 (31, 32) of pre-oxidizing a cystine bond (—S—S— bond) present in an epidermal cell of an animal fiber to bring the cystine bond into a low oxidation state, step 2 (33) of oxidizing with ozone the pre-oxidized —S—S— bond to bring the —S—S— bond into at least one high oxidation state selected from di-, tri-, and tetra-oxidation states, and step 3 (34) of reductively cleaving the —S—S— bond in a high oxidation state. The method imparts shrink resistance and pilling resistance to an animal fiber. In the step 2 (33) ozone is microdispersed in an aqueous solution comprising an anionic surfactant having a C8-24 alkyl group, and the animal fiber is contacted with the ozone.Type: GrantFiled: June 23, 2010Date of Patent: January 22, 2013Assignee: Kurashiki Boseki Kabushiki KaishaInventors: Akinori Takagi, Susumu Katsuen, Kunihiro Ohshima
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Publication number: 20130004479Abstract: Disclosed herein are multi-component formulations for enzymatically producing aqueous solutions of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid formulations comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.Type: ApplicationFiled: September 11, 2012Publication date: January 3, 2013Inventors: Robert Dicosimo, Arie Ben-Bassat, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Mark S. Payne, Richard Alan Reynolds, Raymond Richard Zolandz
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Publication number: 20120321581Abstract: Disclosed herein are compositions and methods to target enzymatic peracid production to a target surface. The peracid benefit agent produced by the targeted perhydrolytic enzyme can be use for a variety of applications such as bleaching, whitening, disinfecting, destaining, deodorizing, and combinations thereof. Specifically, a fusion protein comprising a perhydrolytic enzyme and at least one peptidic component having affinity for a target surface (excluding body surfaces and oral care surfaces) is used in combination with a suitable substrate and a source of peroxygen to enzymatically produce a peracid on or near the surface of the target material. In a preferred aspect, the target surface is a cellulosic material.Type: ApplicationFiled: December 19, 2011Publication date: December 20, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Robert DiCosimo, Scott D. Cunningham, Stephen R. Fahnestock, Tanja Maria Gruber, Mark S. Payne, Pierre E. Rouviere, Linda Jane Solomon, Hong Wang
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Patent number: 8328879Abstract: Agent for lightening keratin fibers, particularly human hair. The agent for lightening keratin fibers contains at least one cationic phthalimide of formula (I) in addition to an oxidant in a cosmetic carrier.Type: GrantFiled: June 18, 2012Date of Patent: December 11, 2012Assignee: Henkel AG & Co. KGaAInventors: Wibke Gross, Ralph Nemitz, Astrid Kroos
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Patent number: 8323356Abstract: Agent for lightening keratinic fibers, particularly human hair, wherein the agent contains, in a cosmetic carrier, at least one oxidizing agent chosen from hydrogen peroxide and/or a solid addition product thereof with organic or inorganic compounds, and at least one sulfonimine of formula (I)—Type: GrantFiled: May 25, 2012Date of Patent: December 4, 2012Assignee: Henkel AG & Co. KGaAInventors: Wibke Gross, Ralph Nemitz, Astrid Kroos, Katja Guenther
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Patent number: 8308822Abstract: The present invention relates to an oxidizing composition for treatment of keratin fibers comprising a combination of; (a) at least one anionic associative copolymer, (b) at least one anionic non associative copolymer; (c) at least one peroxide agent; (d) at least one persulfate agent; (e) at least on alkalizing agent; and (f) a carrier medium suitable for hair treatment. The oxidizing composition described is suitable for composition used in conventional hair treatments such as dyeing, bleaching, and permanent waving or relaxing/straightening of the keratinous fibers, particularly human hair, requiring an oxidizing composition.Type: GrantFiled: May 19, 2011Date of Patent: November 13, 2012Assignee: The Procter & Gamble CompanyInventors: Wilfried Burg, Matthias Morand, Anette Sallwey, Manfred Schmitt
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Publication number: 20120276821Abstract: The invention relates to a method of premature wear of a fabric garment made of a colored denim canvas, wherein the aforementioned garment is placed into a rotating machine including a drum, characterized by the fact that the aforementioned method comprises a step during which the garment is rotated in the drum without being wetted or dampened, ozone gas being injected simultaneously into the interior of the aforementioned drum so as to bleach the aforementioned garment and give it a wear effect.Type: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Inventors: Gilbert RICHARDIERE, Lylian Richardiere
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Patent number: 8282688Abstract: Novel laccase mediators, including carboxyamido and cyano derivatives of 2,6-dimethoxyphenol that exhibit improved hydrolytic stability and good bleaching performance. The novel laccase enzymes may be employed in conjunction with the 2,6-dimethoxyphenol derivatives of this invention to provide an improved method for bleaching denim fabrics.Type: GrantFiled: December 12, 2007Date of Patent: October 9, 2012Assignee: Danisco US Inc.Inventors: Joseph C. McAuliffe, Huaming Wang
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Patent number: 8277517Abstract: Method for lightening keratinous fibers, wherein a cosmetic carrier comprises (i) at least one oxidation agent, (ii) at least one acylpyridinium derivative of formula (I) and (iii) at least one amino acid comprising hydroxyl groups and/or the physiologically compatible salts thereof and/or the alkyl esters thereof.Type: GrantFiled: April 12, 2012Date of Patent: October 2, 2012Assignee: Henkel AG & Co. KGaAInventors: Wibke Gross, Ralph Nemitz, Astrid Kroos, Georg Knuebel
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Patent number: 8277516Abstract: Agent for lightening keratinous fibers comprising in a cosmetic carrier (i) at least one oxidation agent, (ii) at least one acylpyridinium derivative of Formula (I) and (iii) at least one ammonium compound comprising hydroxyl groups of Formula (II).Type: GrantFiled: April 12, 2012Date of Patent: October 2, 2012Assignee: Henkel AG & Co. KGaAInventors: Wibke Gross, Ralph Nemitz, Astrid Kroos, Georg Knuebel
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Patent number: 8268120Abstract: A method for treating a prebleached chemical pulp including a step of ozone treatment of the pulp, carried out at a temperature above 60° C., advantageously above 65° C. and even more advantageously above or equal to 70° C.Type: GrantFiled: December 11, 2007Date of Patent: September 18, 2012Assignee: ITT Manufacturing Enterprises, Inc.Inventors: Guillaume Pipon, Dominique Lachenal, Christine Chirat, Jean-Christophe Hostachy, Achim Ried
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Patent number: 8262739Abstract: The present invention relates to a process for lightening or dyeing keratin materials, in which the following are used: a) a direct emulsion (A) comprising one or more fatty substances in an amount of greater than 25% by weight; one or more oxyalkylenated nonionic surfactants; an amount of water of greater than 5% by weight relative to the total weight of the emulsion, and one or more oxidizing agents, and b) a composition comprising one or more alkaline agents. The invention also relates to a multi-compartment device comprising, in one of them, an emulsion (A), and, in another, a composition (B) comprising one or more alkaline agents.Type: GrantFiled: December 18, 2009Date of Patent: September 11, 2012Assignee: L'Oreal S.A.Inventors: Leïla Hercouet, Frédéric Simonet, Anne-Laure Bernard
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Patent number: 8262740Abstract: The present invention relates to bleaching composition for hair comprising at least one compound with bleaching and/or highlighting effect and at least one dipeptide.Type: GrantFiled: April 23, 2010Date of Patent: September 11, 2012Assignee: KPSS-Kao Professional Salon Services GmbHInventors: Jonathan Wood, Alexandra Hullmann, Sabine Schäfer
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Patent number: 8226733Abstract: Cosmetic preparation for keratinic fibers, particularly human hair, having two phases separated from each other, wherein one of the phases is an aqueous phase and the other phase a hydrophobic phase. These preparations contain at least one chemical oxidizing agent and at least one silicone oil. The agents, in their function as oxidizing preparations, are used as a developer preparation for oxidation dyes or brightening agents.Type: GrantFiled: September 26, 2011Date of Patent: July 24, 2012Assignee: Henkel AG & Co. KGaAInventors: Susanne Hagenow, Astrid Kleen
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Patent number: 8216423Abstract: The invention combines the step of adding chemicals such as alkaline peroxide to an intermediate line after refining, with the step of applying chemicals such as alkaline peroxide as a pre-treatment before primary refining and/or applying chemicals such as alkaline peroxide at the primary refiner. This is implemented in the preferred embodiment, by pre-treating feed material, refining the materials into a pulp in a superatmospheric refiner, and adding chemicals in the post refining blowline.Type: GrantFiled: March 26, 2010Date of Patent: July 10, 2012Assignee: Andritz Inc.Inventor: Eric Chao Xu
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Publication number: 20120172439Abstract: The present disclosure provides methods for generating percarboxylic acid compositions and/or peroxycarboxylic acid compositions formed external to a point of use in non-equilibrium reactions for use in certain bleaching and antimicrobial applications, in particular laundry applications. The compositions are generated external to a point of use, at alkaline pH levels, viz. greater than about pH 12, and optionally suitable for use with detergents and/or surfactants for synergistic bleaching efficacy. Methods of bleaching and/or disinfecting are further provided.Type: ApplicationFiled: December 20, 2011Publication date: July 5, 2012Applicant: Ecolab USA Inc.Inventors: Jonathan P. Fast, Robert D.P. Hei, Richard Staub, Thomas J. Dürrschmidt, Peter J. Forth, Junzhong Li, David D. McSherry, Thomas Merz, Johannes G. Winter
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Publication number: 20120156156Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Inventors: Robert Dicosimo, Mark Scott Payne, John Edward Gavagan
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Publication number: 20120156158Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Inventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Publication number: 20120156155Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Inventors: Robert Dicosimo, Mark Scott Payne, John Edward Gavagan
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Publication number: 20120156157Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Inventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Publication number: 20120156159Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Inventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8182785Abstract: Methods for producing singlet oxygen from 1,1-dihydroperoxides are provided herein. In some embodiments, the methods involve base-mediated decomposition of monoactivated derivatives of 1,1-dihydroperoxides. In some embodiments, the methods involve additive-mediated decomposition of 1,1-dihydroperoxides.Type: GrantFiled: June 10, 2009Date of Patent: May 22, 2012Assignee: Nutech VenturesInventors: Patrick H. Dussault, Prasanta Ghorai
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Patent number: 8163037Abstract: Disclosed are methods and kits for coloring the hair involving a lifting composition capable of lightening the natural hair color, a color base composition comprising at least one primary dye intermediate, and a developer composition comprising an oxidizing agent chosen from persulfates, perborates, percarbonates, and mixtures thereof.Type: GrantFiled: August 28, 2009Date of Patent: April 24, 2012Assignee: L'OrealInventors: Michael DeGeorge, Jeremy Puco, Delphine Allard
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Publication number: 20120077726Abstract: The aim of the invention is to reduce the damage to cellulosic material during the bleaching treatment of cellulosic material by using catalysts with bleaching activity, without significantly impacting the bleaching performance in the process. This was achieved largely by way of a method for bleaching cellulosic material in the presence of a peroxygen-containing bleaching agent and a bleach-boosting transition metal complex, which is carried out in the presence of spherical polyelectrolyte brushes. The spherical polyelectrolyte brushes preferably contain the transition metal complex in a colloidally bound manner.Type: ApplicationFiled: December 7, 2011Publication date: March 29, 2012Applicant: Henkel AG & Co. KGaAInventors: Anette Nordskog, Wolfgang von Rybinski, André Hätzelt, Siglinde Erpenbach, Matthias Ballauf, Frank Polzer
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Patent number: 8137412Abstract: Bleaching method for keratin fibers, using an agent comprising a bleach activator system comprising at least one cationic acylpyridinium derivative of formula (I), and hydrogen peroxide and use of agents for bleaching keratin fibers, in particular human hair, comprising at least one cationic acylpyridinium derivative, for reinforcing the bleaching capacity with concomitant improvement in the condition of the fibers.Type: GrantFiled: June 9, 2011Date of Patent: March 20, 2012Assignee: Henkel AG & Co. KGaAInventors: Georg Suenger, Wibke Gross
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Publication number: 20120052134Abstract: The present invention relates to novel sulfoperoxycarboxylic acid compounds, and methods for making and using them. The sulfoperoxycarboxylic compounds of the invention are storage stable, water soluble and have low to no odor. Further, the compounds of the present invention can be formed from non-petroleum based renewable materials. The compounds of the present invention can be used as antimicrobials, and bleaching agents. The compounds of the present invention are also suitable for use as coupling agents.Type: ApplicationFiled: November 7, 2011Publication date: March 1, 2012Applicant: ECOLAB USA INC.Inventors: Junzhong Li, Richard K. Staub, David D. McSherry, Keith G. Lascotte, Steven J. Lange, Frank Everts
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Publication number: 20120036649Abstract: Described are compositions and methods for enzymatic bleaching of textiles. A perhydrolase enzyme is used in combination with an ester substrate and hydrogen peroxide to produce a peracid for textile bleaching. Textiles bleached by the methods herein exhibit increased dye uptake, decreased textile damage, and/or bulkier softer handle than textiles bleached by conventional chemical bleaching processes.Type: ApplicationFiled: September 10, 2009Publication date: February 16, 2012Applicant: DANISCO US INC.Inventors: Anna-Liisa Auterinen, Biancamari Prozzo, Erwin Redling, Lode Vermeersch, Mee-Young Yoon
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Patent number: 8114169Abstract: Disclosed herein are novel compositions for biobleaching coupled with stone washing of indigo dyed denims comprising a blend of glucose oxidase, catalases and cellulases in the ratio of 1.0:10.0:1.0 along with sugar base, peroxide source and optional adjuvants and a process for the said biobleaching coupled with stone washing wherein the process is carried out at optimized conditions of neutral pH (6.5-7.0) and a temperature of 55° C. Processing time may vary from 15 minutes to 90 minutes depending on the extent of bleach required for the fabric.Type: GrantFiled: May 8, 2007Date of Patent: February 14, 2012Assignee: Advanced Enzyme Technologies LimitedInventors: Chandrakant Laxminarayan Rathi, Saylee Sameer Pradhan
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Publication number: 20120034445Abstract: A dye free medical towel and a method of making thereof, comprising natural, dye free, cotton absorbent cloth material, the towel having a first reduced glare characteristic and reduced linting.Type: ApplicationFiled: August 3, 2011Publication date: February 9, 2012Applicant: Medline Industries, Inc.Inventors: XingQuan (Peter) REN, Jim O'Brian, Tom Pistella
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Publication number: 20120016025Abstract: Disclosed herein are variants enzymes that are structurally classified as CE-7 enzymes and have perhydrolysis activity. Also disclosed herein is a process for producing peroxycarboxylic acids from carboxylic acid esters using the aforementioned variant enzymes as well as methods and compositions comprising the variant enzymes. Further, disinfectant formulations comprising the peroxycarboxylic acids produced by the processes described herein are provided.Type: ApplicationFiled: September 29, 2011Publication date: January 19, 2012Inventors: Robert DiCosimo, Mark S. Payne, Tyler Yin