Patents Assigned to Lever Brothers Company
  • Patent number: 6034043
    Abstract: The present invention relates to liquid skin cleansing compositions comprising (1) mild surfactant systems; (2) 0.1 to 10% by wt. of a polyvalent cation or cations selected from the group consisting of zinc, copper, tin, aluminum cobalt, nickel, chromium, titanium and/or manganese and mixture thereof; and (3) 1% to 99% water wherein said cation or cations provide antibacterial activity. In a second embodiment of the invention, the cation or cations potentiates antibacterial effect in compositions already containing an antibacterial agent. In a third embodiment, the invention relates to a method of enhancing antibacterial effect using these polyvalent cation or cations.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: March 7, 2000
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mitsuko Fujiwara, Carol Vincent, Kavssery Ananthapadmanabhan
  • Patent number: 6026534
    Abstract: A washing system using a washing implement including floppy filaments free at one end, which may be in the shape of a ball, together with a surfactant-based cleanser.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: February 22, 2000
    Assignee: Lever Brothers Company
    Inventors: Frank Gonda, Edward John Giblin, Paul James Mulhauser, Christopher John Brooks
  • Patent number: 6028042
    Abstract: A detergent composition which is suitable for making into bars for personal washing comprises:(a) 10 to 60% wt. of a synthetic, non-soap detergent;(b) 20 to 60% wt. of water soluble material which is neither soap nor a non-soap detergent and which has a melting point in the range 40.degree. C. to 100.degree. C.; and(c) 5 to 50% wt. of water insoluble material which is neither soap nor a non-soap detergent and which has a melting point in the range 40.degree. C. to 100.degree. C. The content of water, if any does not exceed 20% wt. of the composition and better is less than 15% wt. The materials (b) and (c) serve to give structure to the bars. The compositions can be prepared by melting together the above mentioned components at a temperature of 50-100.degree. C., without the conventional energetic working. Desirably the molten mixture contains less than 20% wt. material, other than synthetic, non-soap detergent, which does not enter the liquid phase.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: February 22, 2000
    Assignee: Lever Brothers Company
    Inventors: John George Chambers, Bryan Stuart Joy, Melissa Iva Katz, John Gerrard Sheehan
  • Patent number: 6024224
    Abstract: A combined wrap around carton, bottle and pouf. The package permits display of the bottle and a pouf simultaneously. The bottle is sufficiently rigid to form a portion of the support of the package. The carton includes a central panel having two ends and product receiving structures at each of its ends. In the erected carton, a first product is received within two product receiving apertures and a second product is placed behind the first one. The package is completed with shrink wrap so that the consumer can view the contents of the package.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: February 15, 2000
    Assignee: Lever Brothers Company
    Inventors: David Frederic Gnadt, Kevin Joseph Markey
  • Patent number: 6025320
    Abstract: A non-spray-dried particulate detergent composition or component having a bulk density of at least 600 g/liter, prepared by mixing and granulating liquid and solid ingredients in a high-speed mixer/granulator, contains a builder polymer and/or a soil-release polymer. The polymer is incorporated during the mixing and granulation process in the form of a non-aqueous premix with a non-aqueous diluent.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: February 15, 2000
    Assignee: Lever Brothers Company
    Inventors: Peter Willem Appel, Fran.cedilla.ois Delwel, Johan Christiaan Klein-Velderman
  • Patent number: 6022490
    Abstract: A bleach and oxidation catalyst is provided comprising a catalytically active metal-complex having a poly-dentate ligand containing at least 6 hetero-atoms. Such metal-complexes can activate hydrogen peroxide, peroxy acids or molecular oxygen and were found to have both favourable stain removal and remarkable dye transfer inhibition properties. In addition, these complexes can be easily prepared.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: February 8, 2000
    Assignee: Lever Brothers Company
    Inventors: Roelant Mathijs Hermant, Bas A. M. J. de Jong
  • Patent number: 6017861
    Abstract: The present invention relates to liquid skin cleansing compositions comprising (1) mild surfactant systems; (2) 0.1 to 10% by wt. of a polyvalent cation or cations selected from the group consisting of zinc, copper, tin, aluminum cobalt, nickel, chromium, titanium and/or manganese and mixture thereof; and (3) 1% to 99% water wherein said cation or cations provide antibacterial activity. In a second embodiment of the invention, the cation or cations potentiates antibacterial effect in compositions already containing an antibacterial agent. In a third embodiment, the invention relates to a method of enhancing antibacterial effect using these polyvalent cation or cations.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: January 25, 2000
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mitsuko Fujiwara, Carol Vincent, Kavssery Ananthapadmanabhan
  • Patent number: 6016906
    Abstract: An L-Card for accommodating stacks of articles such as soap bars. The L-Card includes a compartment for receiving promotional items which may be sold with the stacked articles. The rear face of one of the panels forming the compartment advantageously constitutes part of the L-shaped area housing the soap bars.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: January 25, 2000
    Assignee: Lever Brothers Company
    Inventors: Joyce Lynn Kruse, David Frederic Gnadt
  • Patent number: 6007831
    Abstract: The present invention relates to soap bar compositions in which, by carefully selecting components that are highly surface active, yet soluble enough to deliver antibacterial effect, applicants are able to provide enhance quick-kill (i.e., 60 seconds or less).
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: December 28, 1999
    Assignee: Lever Brothers Company
    Inventors: Mitsuko Fujiwara, Carol Vincent, Kavssery Ananthapadmanabhan, Michael Paul Aronson
  • Patent number: 6004917
    Abstract: A process for producing a liquid composition containing at least one active component and a diluent by mixing the active with diluent and/or liquid active to produce a liquid crystal mixture and incorporating diluent into it such that the mixture remains substantially homogeneous to produce a composition in which the concentration of active components is lower than the concentration of active components in the liquid crystal mixture. Novel apparatus for use in the process is also described.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: December 21, 1999
    Assignee: Lever Brothers Company
    Inventors: Galip Akay, Graeme Neil Irving, Adam Jan Kowalski, David Machin
  • Patent number: 6004510
    Abstract: The disclosure relates to a process for the treatment of a surface with a hygiene agent which can include the steps of: a) providing at the surface a non-photochemical catalyst (such as a transition metal compound) which catalyses the formation of the hygiene agent from one or more precursors, whereby the catalyst becomes deposited at the surface, and, b) subsequently treating the surface with a treatment agent (such as a solution of hydrogen peroxide) having the or each hygiene agent precursor, such that the hygiene agent is generated at the surface.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: December 21, 1999
    Assignee: Lever Brothers Company
    Inventors: Peter Gilbert, Martin Vincent Jones
  • Patent number: 6001344
    Abstract: The present invention relates to a novel structuring system comprising both xanthan gum and cross-linked polyacrylic acid polymer which combination unexpectedly has been found to provide enhanced stability for large size benefit agent droplets in an amphoteric/anionic surfactant system relative to use of either structurant alone.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: December 14, 1999
    Assignee: Lever Brothers Company
    Inventors: Virgilio Villa, Richard Kolodziej, May Shana'a
  • Patent number: 5998341
    Abstract: A composition for personal or fabric washing comprises:(i) 25 to 70% by weight of surfactant active;(ii) 0.05 to 5% by weight of water soluble anionic polymer and/or copolymer having a molecular weight of from 500 to 30,000;(iii) 15 to 50% by weight of water; and(iv) other additives making up the total balance.Such a composition is particularly suited for producing bars with high water content whilst retaining structural properties and processability. Enhanced physical properties such as higher yield stress, lathering and lower mush are also attained.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: December 7, 1999
    Assignee: Lever Brothers Company
    Inventors: Milind Vinayak Bhandary, Dhanraj Kalyansundaram Chokappa, Velayudhan Nair Kumar, Devadatta Shivaji Sankholkar
  • Patent number: 5998357
    Abstract: A non-spray-dried particulate detergent composition or component having a bulk density of at least 600 g/liter, prepared by mixing and granulating liquid and solid ingredients in a high-speed mixer/granulator, contains a builder polymer and/or a soil-release polymer. The polymer is incorporated during the mixing and granulation process in the form of a non-aqueous premix with a non-aqueous diluent.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: December 7, 1999
    Assignee: Lever Brothers Company
    Inventors: Peter Willem Appel, Francois Delwel, Johan Christiaan Klein-Velderman
  • Patent number: 5992630
    Abstract: A packaged product comprising a plurality of individual containers, a corrugated board or paperboard carrier wall disposed along a portion of the periphery and shrink wrapping. The shrink wrap film has vent holes that are specifically sized and spaced apart as needed to provide adequate venting of one or more volatiles out of the shrinkwrapped multi-pack to prevent package staining and/or discoloration of the package's printing inks. The container wall preferably has an open top and bottom and also has two free edges spaced from each other so as to leave a portion of the periphery uncovered by the wall.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: November 30, 1999
    Assignee: Lever Brothers Company
    Inventors: Arnold Brown, Edward John Giblin
  • Patent number: 5990073
    Abstract: A process for the production of a detergent composition or component having a bulk density of less than 700 g/l which involves mixing a particulate starting material compound with a liquid binder in a mixer/granulator having both a stirring and a cutting action wherein the starting material contains a component, which is not a detergent active compound, having a bulk density of not more than 600 g/l is disclosed.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: November 23, 1999
    Assignee: Lever Brothers Company
    Inventors: Marcelito Abad Garcia, David Alan Jordan, Donald Peter, Chandulal Kantilal Ranpuria
  • Patent number: 5985808
    Abstract: The present invention is directed to specific synthetic bar compositions wherein relatively small amounts of specified alkoxylated nonionic surfactant has been found to enhance mildness of bar compositions without sacrificing processability and desired user properties, such as lather and bar smoothness.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: November 16, 1999
    Assignee: Lever Brothers Company
    Inventors: Mengtao He, Michael Fair, Michael Massaro
  • Patent number: 5985820
    Abstract: A fabric conditioning composition comprising;i) a quaternary ammonium fabric softening compound containing at least one ester group and;ii) a polymeric nonionic surfactant with a molecular weight of less than 15,000 and having two long chain alkyl groups in which the two long chains are separated from each other by a hydrophilic moiety.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: November 16, 1999
    Assignee: Lever Brothers Company
    Inventors: Abid Nadim Khan-Lodhi, Christopher Whaley
  • Patent number: 5981456
    Abstract: An automatic dishwashing detergent composition is described which contains an effective amount of a defined water soluble cationic or amphoteric polymer and a phosphate or nonphosphate builder. The polymers are soluble or dispersible to at least 0.01% by weight in distilled water at 25.degree. C. A method of using the polymers to prevent fading or corrosion of dishware is also described.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: November 9, 1999
    Assignee: Lever Brothers Company
    Inventors: Alla Tartakovsky, Joseph Oreste Carnali, Richard Gerald Gary
  • Patent number: RE36593
    Abstract: In a process for producing detergent particles comprising an anionic surfactant, a paste comprising water and the surfactant is fed to a drying zone where it is heated. Subsequently, the paste is cooled in a cooling zone. A layering agent is introduced into the cooling zone to improve granularity.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: February 29, 2000
    Assignee: Lever Brothers Company
    Inventor: William Derek Emery