Patents Assigned to Lever Brothers Company, a division of Conopco, Inc.
  • Particulate zero-phosphate aluminosilicate-built detergent compositions comprising silicate/carbonate cogranules
    Patent number: 5854192
    Abstract: In order to provide a particulate zero-phosphate laundry detergent composition with reduced tendency to agglomeration, the composition comprises:i) from 30 to 80 wt % of a granular base powder comprising:a) from 5 to 60 wt % (based on the composition) of organic surfactant, andb) from 10 to 80 wt % (based on the composition) of alkali metal aluminosilicate detergency builder,ii) from 1 to 5 wt % of sodium silicate not within the granular base powder,wherein the sodium silicate (ii) is all present in the form of separate cogranules consisting essentially of sodium silicate and sodium carbonate in a ratio within the range of from 3:1 to 1:3, and where the tendency of the composition to form granules having a particle size of 2000 .mu.m or larger on storage is less than if the sodium silicate (ii) were present in the form of separate granules of sodium disilicate.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: December 29, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: Jelles Vincent Boskamp
  • Particulate aluminosilicate-built detergent compositions comprising cogranules of zeolite map and alkali metal silicate
    Patent number: 5854198
    Abstract: In order to enhance the stability of sodium percarbonate bleach in particulate detergent compositions, crystalline aluminosilicate and a water-soluble alkali metal silicate in an amount of from 1-20% by weight based on the aluminosilicate are included in the non-spray dried base powder. In order to obtain the stabilizing effect, the crystalline aluminosilicate comprises zeolite MAP or the alkali metal silicate is homogeneously dispersed with respect to the aluminosilicate.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: December 29, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Peter Willem Appel, Theodorus Johannes Arts, Jelles Vincent Boskamp, Andrew Paul Chapple, Fredericus Cornelis Dobbe, Christophe Michel Joyeux, Carolyn Angela Lanceley, Edwin Leo Lempers, Theo Jan Osinga
  • Soap composition
    Patent number: 5851978
    Abstract: An aqueous cleansing and moisturising composition comprising 5-35 wt. % C.sub.8 to C.sub.22 fatty acid; up to 10 wt. % of a surface active agent, a benefit agent having a weight average particle size in the range 15 to 500 microns and structurant. The structurant is a material which causes the composition to adopt the lamellar phase or a material which structures the continuous liquid phase or a mixture thereof. The composition is substantially free of insoluble solid fatty acid or fatty acid soap.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: December 22, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: May Shana'a
  • Matrix or core shell enzyme capsule compositions comprising defined density modifying solids surrounded by defined core structurant material
    Patent number: 5846927
    Abstract: The present invention relates to improved matrix or core shell enzyme capsule compositions comprising certain density modifying solids and defined core structural ingredients. Using these capsule compositions, much better active stability is obtained. In addition, higher active retention is accomplished during capsule formation. Release characteristics are not compromised. In a second embodiment of the invention, the invention relates to structured heavy duty liquid compositions comprising these capsules.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: December 8, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: Tirucherai Varahan Vasudevan
  • Anionic glycasuccinamide sufactants and a process for their manufacture
    Patent number: 5844103
    Abstract: The present invention relates to a new class of carbohydrate based nonionic surfactant, i.e., alkyl and alkenyl glycasuccinamide, and a process for their manufacture.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: December 1, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Van Au, Robert Vermeer, Bijan Harichian
  • Cleansing system including a toilet bar and sponge supported within a porous pouch
    Patent number: 5839842
    Abstract: A cleansing kit is provided which includes a pouch of netted mesh, a closed cell sponge and a toilet bar. Preferably the sponge is sculpted in the form of a mitt or cartoon character.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: November 24, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Jill Dene Wanat, Howard Bruce Kaiserman
  • Machine dishwashing tablets containing a peracid
    Patent number: 5837663
    Abstract: A solid detergent composition useful for machine dishwashing is described. The product contains a first layer having a buffering system, a builder and an enzyme. The first layer dissolves to deliver a pH of about 9.0 to about 11 in the wash water. A second layer includes a peracid and an acidity agent in a continuous medium having a melting point in the range of from about 35.degree. C. to about 50.degree. C. The material may be a paraffin wax, a natural wax, a polyvinyl ether, fatty acids and mixtures thereof. The second layer dissolves in wash water to deliver a pH of from about 6.5 to about 9. The release order of the functional ingredients allows for a optimum bleaching of stains as well as removal of soil.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: November 17, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: John Richard Nicholson, Bozena Marianna Piatek, David John Lang, Isaac Israel Secemski
  • Method of pretreating stained fabrics with pretreater or laundry additive compositions containing hydrophobically modified polar polymers
    Patent number: 5820637
    Abstract: A pretreater or laundry additive composition which removes stains and as a laundry additive, whiten fabrics are described herein. The compositions contain 0.1 to 20 wt. % of a nonionic surfactant, 0.1% to 10 wt. % of a hydrophobically modified polymer and less than about 5 wt. % of an anionic soap. Methods of using the composition are also described.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: October 13, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Barbara Helen Bory, Dennis Stephen Murphy, Tamara Padron, Lucia Victoria Salas
  • Bar composition comprising low viscosity oils pre-thickened by non-antifoaming hydrophobic polymers
    Patent number: 5817609
    Abstract: The present invention relates to personal wash bar compositions comprising hydrophobic, low viscosity (less than 1000 cp) emollient agents which have been specifically pre-thickened with defined polymer composition. Use of the specific thickeners allow incorporation of the low viscosity oil (viscosity less than 1000 cp) in the personal wash compositions to deliver enhanced skin benefits and desired user properties without compromising foaming and bar processing.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: October 6, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mengtao He, Michael Massaro, Gregory McFann, Liang Sheng Tsaur, Gail Beth Rattinger, Michael Paul Aronson
  • Self-supporting insert
    Patent number: 5813523
    Abstract: The present invention provides an insert, a blank for the insert and a combination of carton and insert, plus the combination of insert and cleansing agent bottle and the combination of insert plus cleansing agent bottle plus washing implement. The insert is designed to include five supports, three bottom supports and two top supports as part of the carton blank. The insert relies on the bottle for support. The insert stabilizes the cleansing agent bottle and the washing implement to minimize movement.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: September 29, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: David Frederic Gnadt, Kevin Joseph Markey
  • Cosmetic composition
    Patent number: 5814323
    Abstract: A process for reversibly applying a cosmetic composition to the skin or comprising: a) contacting the skin or hair with the cosmetic composition, the composition comprising at least one amphiphilic material which is capable of forming a water-insoluble liquid crystal phase of greater than one-dimensional periodicity and a cosmetic agent and b) when desired, removing the cosmetic composition by applying to the skin or hair a cleansing composition comprising a surface active agent and a hydrotrope capable of destroying the liquid crystal phase formed in a step a). An advantage of such a system is that the cosmetic agent is strongly adhered to the skin or hair when applied and can be effectively removed when desired.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: September 29, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: Ian Gardner Lyle
  • Light duty cleaning composition
    Patent number: 5807816
    Abstract: Improved light duty cleaning compositions comprising 15-50% surfactant on product can be formulated such that they comprise, on surfactant:a) 50-70% wt of a mixture of primary alkyl sulphate and alkyl ether sulphate, wherein the average ethoxylation value of the mixture is 0.5-2.5,b) 2-8% wt of a betaine, an amine oxide or a mixture of betaine and amine oxide, and,c) 25-45% wt of an alkylpolyglucoside surfactant.It is believed that compositions which have an excess in surfactant of a mixture of both primary alkyl sulphate and alkyl ether sulphate in a specified ratio, i.e. such that the total EO is 0.5-2.5, together with a lesser, but significant level of APG and a minor amount of betaine, provide an acceptable combination of mildness, cleaning and foaming under a broad range of conditions and show surprising benefit in a bowl-wash situation.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: September 15, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: John Stuart Cottrell, George Kerr Rennie
  • Personal wash liquid composition comprising low viscosity oils pre-thickened by non-antifoaming hydrophobic polymers
    Patent number: 5804540
    Abstract: The present invention relates to aqueous-based personal wash compositions comprising hydrophobic, low viscosity (less than 1000 cp) emollient agents which have been specifically pre-thickened with defined polymer composition. Use of the specific thickeners allow incorporation of the low viscosity oil (viscosity less than 1000 cp) in the personal wash compositions to deliver enhanced skin benefits and desired user properties without compromising foaming.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: September 8, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Liang Sheng Tsaur, Mengtao He, Michael Massaro, Michael Paul Aronson
  • Process for making bar compositions comprising novel chelating surfactants
    Patent number: 5801139
    Abstract: The invention relates to a process for making bar compositions comprising salts of hydrophobically modified ethylenediaminetriacetic acid.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: September 1, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Michael Fair, Mengtao He, Michael Massaro
  • Bar composition comprising nonionic polymeric surfacing as mildness enhancement agents
    Patent number: 5795852
    Abstract: The present invention is directed to synthetic bar compositions wherein relatively small amounts of specified hydrophobically modified polyalkylene glycol nonionic polymer has been found to enhance mildness of bar compositions without sacrificing processability and lather property.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: August 18, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mengtao He, Michael Fair, Michael Massaro
  • Liquid compositions comprising hydrophobically modified polyalkylene glycols as mildness actives
    Patent number: 5792739
    Abstract: The present invention relates to liquid detergent compositions comprising anionic/amphoteric surfactant systems. Low addition levels of specific hydrophobically modified polyalkylene glycol wherein ratio of hydrophobically modified polyalkylene glycol to anionic surfactant is defined have been found to remarkably enhance mildness without sacrificing processibility and desired user properties. In a second embodiment, the invention relates to a method for enhancing mildness in liquid detergent compositions comprising anionic surfactant by adding said defined hydrophobically modified polyalkylene glycols.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: August 11, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mengtao He, Michael Fair, Michael Massaro
  • Detergent compositions containing soil release polymers
    Patent number: 5789366
    Abstract: A non-bleaching laundry detergent composition suitable for washing delicate fabrics, having a 1 wt % aqueous solution pH in demineralised water at 25.degree. C. not exceeding 10, contains surfactant, detergency builder, and a soil release polymer which is a defined water-soluble or water-dispersible sulphonated non-end-capped polyester, for example, of terephthalic acid, isophthalic acid, sulphoisophthalic acid and ethylene glycol.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: August 4, 1998
    Assignee: Lever Brothers Company, Division of CONOPCO, Inc.
    Inventors: Wilfried Blokzijl, Andrew Martin Creeth, Mohamad Sami Falou, Andrew David Green, Norah Lynn, Reginald Vear Scowen
  • Detergent compositions containing soil release polymers
    Patent number: 5789367
    Abstract: A laundry detergent composition contains organic surfactant, zeolite MAP builder, and a soil release polymer which is a defined water-soluble or water-dispersible sulphonated non-end-capped polyester, for example, of terephthalic acid, isophthalic acid, sulphoisophthalic acid and ethylene glycol.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: August 4, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Wilfried Blokzijl, Andrew Martin Creeth, Andrew David Green, Michael Hull
  • Combined bottle and cap
    Patent number: D400444
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: November 3, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: David Scott Laubach, David Frederic Gnadt
  • Combined bottle and cap
    Patent number: D401507
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: November 24, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Frank Gonda, David Scott Laubach, Gregory Alan Lathrop, Joyce Lynn Kruse