Patents Represented by Attorney, Agent or Law Firm Rimma Mitelman
  • Patent number: 7387992
    Abstract: A laundry detergent composition comprising from about 0.1% to about 80%, by weight of the composition, of a polyamine mono-anionic surfactant; and a solubiliser; in a defined weight ratio. Also, a process of making the polyamine mono-anionic surfactant and the laundry compositions containing the same.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: June 17, 2008
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Shui-Ping Zhu, Mei Shi
  • Patent number: 7297674
    Abstract: The present invention provides a shear thinning, transparent gel laundry detergent composition, comprising a surfactant system containing surfactant material selected from an anionic surfactant, a nonionic surfactant or a mixture thereof, and from 0.1 to 10% by weight of a clarity improving agent being a glycol dialkyl ether selected from a mono-or polyethylene glycol dialkyl ether having the formula (CpH2p+1)O—(CH2CH2O)n—(CqH2q+1),??(I) a mono- or polypropylene glycol dialkyl ether having the formula (CpH2p+1)O—(CH2CH (CH3)O)n—(CqH2q+1),??(II) ?and mixtures thereof, wherein p and q independently are integers in the range of from 1 to 5, and n is an integer in the range of from 1 to 50, preferably 1 to 10. It has been found that this gel laundry composition is highly transparent, such that particles can be suspended therein for improving visual appearance.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: November 20, 2007
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventor: John David Hines
  • Patent number: 7291582
    Abstract: An aqueous liquid laundry detergent composition comprising an alkoxylated carboxylic acid surfcatant and a free radical scavenger in the mole ratio of from about 500:1 to about 20:1. The composition substantially prevents the degradation of the alkoxylated ester surfactant upon storage and is also color-stable.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: November 6, 2007
    Assignee: Conopco, Inc., d/b/a Unilever
    Inventors: Feng-lung Gordon Hsu, Shui-Ping Zhu
  • Patent number: 7214247
    Abstract: The present invention relates to the use of polymers comprising a block copolymer containing at least one group A and at least one group B in which each group A is a polymeric block built up from an ethylenically unsaturated polymerisable monomer and each group B is a polymeric block built up from an alkylene oxide, alkylene glycol or cyclic ether monomer or a mixture thereof for promoting soil release during laundering of a textile fabric and processes for their preparation. Laundry cleaning compositions comprising such polymers, a method of promoting soil release during laundering of a textile fabric and the use of such polymers in the manufacture of a laundry cleaning composition for effecting soil release from a laundry item form other aspects of the invention.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: May 8, 2007
    Assignee: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Michael Douglas Eason, Ezat Khoshdel, Susanne Henning Rogers, Michael Stephen White
  • Patent number: 7211273
    Abstract: Detergent or personal care compositions comprising capsules, which in turn comprise a hydrophobic continuous phase, the latter comprising an isotropic mixture of a thermoplastic-type co-polymer and hydrocarbon oil. Preferably, the capsules further comprise an oil-soluble benefit agent. Preferably, the compositions are liquid, especially aqueous-based compositions. In the preferred embodiment, the capsules are transparent or translucent.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: May 1, 2007
    Assignee: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventor: Feng-Lung Gordon Hsu
  • Patent number: 7208461
    Abstract: An anionic surfactant particle for use in laundry detergent compositions has an anionic surfactant content of at least 95 wt % of anionic surfactant and comprises linear alkylbenzene sulphonate (LAS) and primary alcohol sulphate (PAS) in a weight ratio of from 5:1 to 1:3. The particle, which is preferably in the form of a flake, is of low hygroscopicity and dissolves rapidly in water.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: April 24, 2007
    Assignee: Unilever Home & Personal Care USA Division of Conopco, Inc.
    Inventors: Siobhan Casey, Philip Ronald Moore
  • Patent number: 7205268
    Abstract: A low-foaming aqueous liquid laundry detergent composition comprising from about 0.05% to about 6%, by weight of the composition, of certain carboxylic acid ester and/or low-degree alkoxylated derivatives thereof having HLB below about 10; from about 8% to about 80% of a surfactant; from about 15% to about 90% of water. The compositions are particularly suitable for use in front-loading laundry washing machines.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: April 17, 2007
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Shui-Ping Zhu
  • Patent number: 7179782
    Abstract: Incorporation in a laundry detergent composition of a graft polymer having a locust bean gum backbone and grafts of an aromatic sulphonic acid improves antiredeposition properties. The preferred polymer is locust bean gum—graft—poly (4-styrenesulphonic acid).
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: February 20, 2007
    Assignee: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Christopher David Gibbs, Alyn James Parry, Susanne Henning Rogers
  • Patent number: 7160947
    Abstract: Graft copolymers providing soil release benefits in laundry detergent compositions contain backbone units derived from an ethylenically unsaturated monomer, hydrophilic uncharged side chains, and cationically chargeable or charged side chains containing a tertiary or quaternary nitrogen atom. Preferred copolymers have a methacrylate backbone with polyethylene oxide and 2-dimethylaminoethyl methacrylate (DMAEMA) side chains. The graft copolymers may be prepared by radical polymerisation.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: January 9, 2007
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Per Martin Claesson, Petrus Wilhelmus Nicolaas de Groot, Donna MacNab, Albert van der Wal, Becky Zhou
  • Patent number: 7160848
    Abstract: Hydrophobically modified vinyl pyrrolidone polymers which are copolymers having a vinyl pyrrolidone backbone and pendant hydrophobic side chains are useful in laundry detergent compositions to improve detergency and/or antiredeposition. The pendant hydrophobic side chains preferably comprise alkyl chains containing from 4 to 20 carbon atoms and may be linked to the backbone via an ester linkage.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: January 9, 2007
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Donna Macnab, Catherine Marie-Joseph Soret, Robert Kemeys Thomas, Albert van der Wal
  • Patent number: 7153819
    Abstract: There is provided an antibody granule, consisting essentially of one or more antibodies, or fragments derived thereof, granulated with an alkali metal salt. Also provided is a process for preparing said antibody granules. The granules can be used in an enzymatic stain bleaching or anti dye-transfer composition.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: December 26, 2006
    Assignee: Unilever Home & Personal Care USA divison of Conopco, Inc.
    Inventors: Andrew Paul Chapple, Sandra Hemmington, Steven Howell, Neil James Parry
  • Patent number: 7153821
    Abstract: A laundry cleaning composition comprises a graft polysaccharide polymer benefit agent capable of imparting a benefit such as soil release or fabric care, and at least one additional laundry cleaning ingredient.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: December 26, 2006
    Assignee: Unilever Home & Personal Care USA Division of Conopco, Inc
    Inventors: Wilfried Blokzijl, Christopher Clarkson Jones, Susanne Henning Rogers, Brodyck James Lachlan Royles, Michael Stephen White
  • Patent number: 7098175
    Abstract: Aqueous laundry detergent compositions comprising a solubilized ethoxylated fatty acid diester as a detergency booster and/or a defoamer. Preferred compositions include a nonionic surfactant, preferably ethoxylated fatty acid monoester, as at least part of the surfactant in the composition, and also functioning as the solibilizer for the ethoxylated fatty acid diester.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: August 29, 2006
    Assignee: Unilever Home & Personal Care USA Division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Shui-Ping Zhu, Yun-Peng Zhu
  • Patent number: 7083047
    Abstract: A water soluble package comprises a polymeric film, the polymeric film comprising a polymeric backbone derived from a polymer which is water soluble, as defined herein, and one or more derivatising groups attached to the backbone, the derivatising group(s) being derived from a material having a ClogP of from 0.5 to 6 and/or being derived from a parent material comprising a C4 to C22 hydrocarbyl chain.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: August 1, 2006
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Gavin Bone, Robert Walter Fuss, Craig Warren Jones, Steven Paul Rannard, Michael Stephen White
  • Patent number: 7078374
    Abstract: A method of preparing an aqueous dispersion of a fabric conditioning composition comprises mixing 7.5 to 60% by weight of a cationic fabric softening compound, the compound having one or more hydrocarbyl chains formed from parent fatty acyl compounds or fatty acids having an iodine value of from 0 to 20 with 0.01%–1.5% by weight of a nonionic surfactant viscosity modifier and up to 1.4% by weight of a fatty alcohol, the combination of (b) and (c) being no more than 1.5% by weight, based on the total weight of the composition, the aqueous dispersion being subjected to high-shear below the phase transition temperature of compound (a) for a time sufficient to provide a composition having a viscosity of from 10 to 250 mPa·s measured at 20 s?1 using a Haake NV1 Rotoviscometer at 20° C.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: July 18, 2006
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Jane Howard, Kevin Anthony Ormandy, John Stuart Parsons
  • Patent number: 7078373
    Abstract: The detergent composition of the invention contains a combination of an anionic surfactant, a defined nonionic surfactant of high hydrophilic/lipophilic balance (HLB) value, optionally a cationic surfactant, optionally a detergency builder, optionally an inorganic non-builder salt, an optionally a polycarboxylate polymer. Further optional detergent ingredients may also be present. The amount of the anionic surfactant is from 5 to 40, preferably from 7 to 30 wt % and the amount of the nonionic surfactant is from 1 to 20, preferably from 1 to 10 wt %, based on the weight of the total composition.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: July 18, 2006
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Jacqueline Burrows, Robert John Crawford, Patrick Joseph Norris, David Christopher Thorley
  • Patent number: 7067467
    Abstract: Aqueous compositions comprising a perborate salt and a polyol. The advantageous properties of the composition include increased solubility of the perborate salt, increased available oxygen stability in an aqueous environment, and the capacity to increase the pH upon the dilution. The compositions are useful for bleaching various surfaces, especially in laundry cleaning.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: June 27, 2006
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Yun Peng Zhu, Kimball James Woelfel, Mohammad Hosseini-Nejad
  • Patent number: 7060666
    Abstract: An aqueous fabric conditioning composition comprises a cationic softening agent and a silicone having a viscosity of from 1 to less than 10,000 cSt wherein the silicone comprises a cyclic polydi-(C1-6)alkyl siloxane. A silicone is used in a fabric conditioning composition comprising a cationic fabric softening agent to reduce the drying time of laundered fabrics and/or to increase the rate of water removed from the fabrics during the spin cycle of an automatic washing machine.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: June 13, 2006
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Gillian Sheila McHattie, Tom Matthew Salmon, Samantha Small
  • Patent number: 7056881
    Abstract: An aqueous fabric conditioning composition comprises (a) 7.5 to 60% by weight of a cationic fabric softening compound of a quaternary ammonium softening compound, the compound having one or more hydrocarbyl chains formed from parent fatty acyl compounds or fatty acids having an iodine value of between 0 and 20, (b) 0.01%–1.5% by weight of a nonionic surfactant viscosity modifier and (c) optionally up to 1.4% by weight of a fatty alcohol wherein the combination of (b) and (c) is no more than 1.5% by weight of the composition and the composition comprises particles having a mean diameter of from 0.3 to 7 microns, measured using a Malvern Mastersizer.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: June 6, 2006
    Assignee: Unilever Home & Personal Care USA a division of Conopco, Inc.
    Inventors: Jane Howard, Mansur Sultan Mohammadi, Kevin Anthony Ormandy, John Stuart Parsons
  • Patent number: 7053038
    Abstract: A low shear mechanical granulation process for the production of detergent granules, the process comprising contacting an acid precursor of an anionic surfactant, a non-surfactant acid and a solid carbonated neutralising agent wherein the solid carbonated neutralizing agent has a d3,2 average particle size no more than 90 ?m, preferably no more than 80 ?m, more preferably no more than 70 ?m, still more preferably no more than 60 ?m, yet more preferably no more than 50 ?m and especially no more than 40 ?m.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: May 30, 2006
    Assignee: Unilever Home & Personal Care USA Division of Conopco, Inc.
    Inventors: Andreas Theodorus Groot, Cornelis Paulus Montanus