Patents Examined by Amina Khan
  • Azo dyes for dyeing and printing hydrophobic materials
    Patent number: 7909891
    Abstract: The invention relates to a dye of the general formula (I) where D is the residue of a diazo component; R1 is hydrogen, (C1-C6-alkyl, (C1-C4)-alkoxy, hydroxyl, halogen, —NHCHO, —NHCO(C1-C6)-alkyl, —NHCOaryl, —NHSO2(C1-C6)-alkyl or —NHSO2aryl; R2 is hydrogen, (C1-C6)-alkyl, (C1-C4)-alkoxy, phenoxy or halogen; R3 is hydrogen, (C1-C6)-alkyl, substituted (C1-C6)-alkyl, (C3-C4)-alkenyl or substituted (C3-C4)-alkenyl; or R2 and R3 combine to form the radical —C*H(CH3)CH2C(CH3)2—, where the carbon atom marked * is attached to the phenyl nucleus; R4 is hydrogen, (C1-C6)-alkyl or phenyl; R5 is vinyl or a group of the formula —CHR6COR7, where R6 is hydrogen, (C1-C6)-alkyl or phenyl; R7 is (C1-C6)-alkyl, substituted (C1-C6)-alkyl, phenyl or substituted phenyl; and X is C1-C5)-alkylene. The invention for relates to a process to prepare the dye and their use.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: March 22, 2011
    Assignee: DyStar Colours Deutschland GmbH
    Inventor: Stefan Neubauer
  • Glycol based pigment preparation for mass dyeing of polyacrylonitrile fibers
    Patent number: 7905929
    Abstract: The invention relates to a process for mass dyeing of polyacrylonitrile, wherein there is incorporated into a solution of acrylonitrile polymer or copolymer a pigment preparation which comprises 10 to 60% by weight of a pigment, 15 to 85% by weight of a glycol-based solvent, 5 to 25% by weight of a surfactant, and 0 to 10% by weight of customary additives, the percentages being based on the total weight of the pigment preparation.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: March 15, 2011
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Rosa Maria Montoliu Gombau, Montserrat Fernández Balsells
  • Shading composition
    Patent number: 7902139
    Abstract: A laundry treatment composition comprising: (i) from 2 to 70 wt % of a surfactant, and from 0.0001 to 0.1 wt % of an azine dye, wherein the dye is of the following core structure (I), wherein Ra, Rb, Rc, and Rd are selected from: H, an branched or linear C1 to C7-alkyl chain, benzyl a phenyl, and a naphthyl; the dye is substituted with at least one SO3? or —COO? group; the B ring does not carry a negatively charged group or salt thereof; and the A ring may further substituted to form a naphthyl; the dye is optionally substituted by groups selected from: amine, methyl, ethyl, hydroxyl, methoxy, ethoxy, phenoxy, Cl, Br, I, F, and NO2.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: March 8, 2011
    Assignee: Conopco Inc.
    Inventors: Stephen Norman Batchelor, Jayne Michelle Bird
  • Photochromic benzopyrans
    Patent number: 7892296
    Abstract: The present invention relates to photochromic benzopyrans and to the use thereof in plastics of all kinds, especially for ophthalmic purposes. The inventive compounds are photochromic benzopyran compounds in which a polycyclic aromatic is joined to the 5 and 6 positions of a benzopyran, where the bond in the 6 position is direct and the bond in the 5 position is via a mono- or diatomic bridge.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: February 22, 2011
    Assignee: Rodenstock GmbH
    Inventors: Manfred Melzig, Yven Rohlfing, Udo Weigand
  • Reactive dyes, their preparation and their use
    Patent number: 7887602
    Abstract: Reactive dyes of formula wherein the variables are defined herein.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: February 15, 2011
    Assignee: Huntsman International, LLC
    Inventors: Hubert Jean Luc Christnacher, Athanassios Tzikas, Georg Roentgen
  • Stain-resist compositions
    Patent number: 7879112
    Abstract: The present invention relates generally to stain-resist compositions, and particularly, but not by way of limitation, to fibers and textiles treated with stain-resist compositions.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: February 1, 2011
    Assignee: INVISTA North America S.ar.l.
    Inventor: Yanhui Sun
  • Nano-particles on fabric or textile
    Patent number: 7862624
    Abstract: Systems and methods for fabricating a wash durable material includes forming a substrate having strands with void spaces in the strands and between the strands; filling at least a part of the void spaces with nano-particles; and forming projections on the substrate.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: January 4, 2011
    Inventor: Bao Tran
  • Conversion of perylene-3,4:9,10-tetracarboximides to a form suitable for use as fluorescent dyes
    Patent number: 7851628
    Abstract: A process for converting perylene-3,4:9,10-tetracarboximides of the general formula I in which R1 and R2 are each unbranched, branched or cyclic C1-C8-alkyl to a form suitable for use as fluorescent dyes, which comprises a) dissolving or suspending the perylene-3,4:9,10-tetracarboximides whose molecules have a molecular volume of ?230 ?3 in an organic or inorganic solvent at from 0 to 250° C.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: December 14, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Erk, Simone Schaefer, Arno Boehm, Peter Blaschka, Harald Arms, Willi Helfer
  • Vehicle interior material coating composition and vehicle interior material
    Patent number: 7850877
    Abstract: A coating composition comprising 100 pbw as solids of a synthetic resin emulsion and 1-300 pbw of a non-halogen flame retardant in which phosphorus and nitrogen-containing non-halogen flame retardant particles are surface coated with a functional group-containing organosilicon resin is applicable to vehicle interior materials such as car seats, floor mats and ceiling members.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: December 14, 2010
    Assignees: Nissin Chemical Industry Co., Ltd., Shin-Etsu Chemical Co., Ltd.
    Inventors: Nobuyuki Takahata, Norio Nakamura, Yuji Gama, Harukazu Okuda
  • Cleansing polyester fabrics, and a process of preparing the same
    Patent number: 7850741
    Abstract: The present invention provides a cleansing polyester fabric, which comprises (i) a polyester multifilament consisting of ultra yarns (monofilament) of 0.001 to 0.1 deniers or its false twist yarn as warp and (ii) a false twisted mixing yarn consisting of said polyester multifilament and a high shrinkage polyester multifilament with 10-50% of shrinkage rate in boiling water as a weft, and said fabric satisfies the following properties; sum of warp density and weft density: 220-320 yarns/inch, thickness of the fabric: less than 0.3 mm, and weight of the fabric: 70-180 g/m2. The cleansing fabric of the present invention is useful as a makeup cleansing fabric or as wiping fabric for fine products and optical devices since it exhibits excellent cleansing performance, is soft to the touch and does not damage the surface of products to be cleaned.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: December 14, 2010
    Assignee: Kolon Industries, Inc.
    Inventors: Yang-Soo Park, Heung-Ryul Oh, Dong-Eun Lee
  • Process for dyeing polyester
    Patent number: 7846215
    Abstract: The invention relates to a process for dyeing polyester fibre material according to the exhaust method, which process comprises the following steps: (a) pre-treatment of the fibre material with one or more surfactants, (b) dyeing with one or more disperse dyes, and (c) reductive after-treatment with a hydroxyalkylsulfinic acid or a hydroxyalkylsulfinic acid salt, wherein steps (a), (b) and (c) are carried out in succession in a single liquor.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: December 7, 2010
    Assignee: Huntsman International LLC
    Inventors: Martin Weber, Edvard Ham
  • Lacquer formulation for improving surface properties
    Patent number: 7842129
    Abstract: A coating formulation containing at least one surface-modified silicon dioxide having a 60° reflectometer value of <3 and a black number My of at least 140 has excellent performance properties, for example, a very good transparency.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: November 30, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Hans-Dieter Christian, Reinhard Behl, Hans-Werner Köhler, Uwe Schmeier, Jürgen Meyer
  • Dispersing agents in nanocomposites
    Patent number: 7837899
    Abstract: The instant invention discloses a composition, preferably a nanocomposite material, comprising (a) a synthetic polymer, (b) a filler selected from a natural or synthetic phyllosilicate or a mixture of such phyllosilicates, preferably in nanoparticles, and (c) a dispersing agent prepared by controlled free radical polymerization (CFRP).
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: November 23, 2010
    Assignee: Polymers Australia Pty. Ltd.
    Inventors: Graeme Moad, George Philip Simon, Katherine Maree Dean, Guoxin Li, Roshan Tyrrel Anton Mayadunne, Hendrik Wermter, Rudolf Pfaendner
  • Vehicle interior material coating composition and vehicle interior material
    Patent number: 7820079
    Abstract: A coating composition comprising 100 pbw as solids of a synthetic resin emulsion and 1-300 pbw of a non-halogen flame retardant in which phosphorus and nitrogen-containing non-halogen flame retardant particles are surface coated with a functional group-containing organosilicon resin is applicable to vehicle interior materials such as car seats, floor mats and ceiling members.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: October 26, 2010
    Assignee: Nissin Chemical Industry Co., Ltd.
    Inventors: Nobuyuki Takahata, Norio Nakamura, Yuji Gama, Harukazu Okuda
  • Fluid composition having enhanced heat transfer efficiency
    Patent number: 7820066
    Abstract: A fluid composition includes a coolant and a plurality of nanoparticles dispersed within the coolant. The plurality of nanoparticles includes glass, silica, pumices, metal compounds adapted to react with chloride in the coolant, and/or mixtures thereof. The plurality of nanoparticles substantially increases heat capacity of the coolant and enhances heat transfer efficiency of the fluid composition.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: October 26, 2010
    Assignee: Honeywell International Inc.
    Inventors: Carol S. Jeffcoate, Filipe J. Marinho, Aleksei V. Gershun
  • Perfluoroamidated and hydrolyzed maleic anhydride copolymers
    Patent number: 7815690
    Abstract: A composition which provides stain resistance and soil resistance to substrates comprising a copolymer of Formula 1 is disclosed, wherein D, M, R, Rf, x, k, h, i and j are defined as in claim 1.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: October 19, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephen Ernest Jacobson, Peter Michael Murphy, Melea Rena Langley
  • Method of producing a low twist towel
    Patent number: 7810308
    Abstract: The invention relates to a method for producing a towel, specifically a low twist towel, comprising the following steps: Z twisting a thick yarn and separately Z twisting a fine count yarn; unevenly S twisting the Z-twisted yarns to make the volume of the thick yarn more than that of the fine count; weaving the yarn to produce a fabric; processing the fabric with hot water to reduce inner tension in the yarn and make the fabric become fluffy. Fabric produced by this method can solve the dependency on PVA, reduce energy consumption and material consumption, and prevent water pollution. This method for producing a low twist towel is environmentally friendly, healthy, and energy saving.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: October 12, 2010
    Assignee: Loftex USA LLC
    Inventor: Hongxing Wang
  • Methods for producing colored glue-laminated bamboo timber articles
    Patent number: 7794508
    Abstract: A method for producing colored gluelam bamboo articles includes splitting bamboo stalks into strips and removing the tabasheer and bamboo rind from the strips. The strips are steamed and then dyed under a high-pressure. The dyed bamboo strips are then dried and planed into a finish plane form. The dyed and finished plane strips are then laminated together with an adhesive to form bamboo timber boards or panels of various sizes. The colored gluelam bamboo timber articles produced exhibit a beautiful, natural dyed appearance in which the natural texture of the bamboo is brought forth and fully preserved after the dyeing, and gluelam bamboo timber products produced from the boards or panels will not warp in the presence of high humidity. The method results in low equipment and manufacturing costs and a high production efficiency.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: September 14, 2010
    Assignee: Maria Yee, Inc.
    Inventors: Maria Yee, Yong Ming Zhao
  • Amphoteric stilbene composition
    Patent number: 7789917
    Abstract: A brightening system includes a substrate and an amphoteric stilbene composition established on the substrate. The amphoteric stilbene composition includes a predetermined amount of at least one of 4,4?-diamino-2,2?-stilbene disulfonic acid, biarylsulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, biaryldisulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, derivatives thereof, salts thereof, and mixtures thereof; and a fixing agent.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: September 7, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kai Kong Iu, Gary Larson, Hai Q Tran, William A Houle
  • Methods and compositions for imparting stain resistance to nylon materials
    Patent number: 7785374
    Abstract: The present invention provides nylon 6 and nylon 6,6 materials having resistance to staining by a wide variety of staining agents including, but not limited to, coffee, red wine, mustard, tumeric, Betadine®, bleach, benzoyl peroxide, as well as other types of common staining agents. The invention also provides fibers, yarns and carpet products prepared from such stain resistant nylon materials. Yet further, the present invention provides methods of imparting stain resistance to nylon materials. Methods of providing such treated fibers are set forth.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: August 31, 2010
    Assignee: Columbia Insurance Co.
    Inventor: Dennis J. Jones, Jr.