Patents Assigned to Lever Brothers Company, a division of Conopco, Inc.
  • Anionic glycasuccinamide surfactants and a process for their manufacture
    Patent number: 5786468
    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: August 11, 1997
    Date of Patent: July 28, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Van Au, Robert Vermeer, Bijan Harichian
  • Bleaching compositions containing imine hydrogen peroxide and a transition metal catalyst
    Patent number: 5785886
    Abstract: A bleach system is described that includes a peroxygen compound which is hydrogen peroxide or an inorganic substance that generates hydrogen peroxide in water, a C.sub.1 -C.sub.30 imine and a transition metal catalyst. Use of the transition metal catalyst promotes the interaction of the hydrogen peroxide and imine thereby enhancing bleach performance.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: July 28, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Judith Lynne Kerschner, Stephen Alan Madison, Catherine Victoria Chin Quee-Smith
  • Bar composition comprising copolymer mildness actives
    Patent number: 5786312
    Abstract: The present invention is directed to mixed fatty acid soap based bar compositions, which may include synthetic surfactants as co-actives, wherein relatively small amounts of specified polyoxyethylene-polypropylene nonionic polymer has been found to enhance mildness and reduced mush of bar compositions without sacrificing the user properties and processability of the formulations.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: July 28, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Albert Joseph Post, Edward Van Gunst, Mengtao He, Michael Fair, Michael Massaro
  • Soil Release Polymers and detergent compositions containing them
    Patent number: 5786318
    Abstract: A water-soluble copolyester comprising units of a polyglycol or capped polyglycol (for example, polyethylene glycol or polyethylene glycol methyl ether), an aromatic dicarboxylic acid (for example, terephthalic acid) and at least 30 mole % of a polyol having at least three hydroxyl groups (for example, glycerol), but free of ethylene glycol units, is a highly effective soil release polymer for use in detergent compositions. The aromatic dicarboxylic acid units may include units of a sulphonated aromatic dicarboxylic acid (for example, sulphoisophthalic acid).
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: July 28, 1998
    Assignee: Lever Brothers Company, Division of Conopco Inc.
    Inventors: Wilfried Blokzijl, Andrew Martin Creeth, Alfred Roy Elmes, Andrew David Green, Michael Hull, Katrin Dagmar Joule, Ezat Khoshdel
  • Bar composition comprising additive for delivering benefit agent
    Patent number: 5783536
    Abstract: An extruded toilet bar composition comprises mixtures of chips containing polyalkylene glycol, benefit agent and fumed silica, and chips containing a surfactant system.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: July 21, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Terence Farrell, Georgia Shafer, James Dalton
  • Enzymatic composition
    Patent number: 5782932
    Abstract: Enzymatic compositions with improved storage stability of the enzymes contained therein are obtained by including an enzyme stabiliser, preferably by way of a particular process.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: July 21, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Willem Robert van Dijk, Marja Ouwendijk, Peter John Hall
  • Machine dishwashing tablets delivering a rinse aid benefit
    Patent number: 5783540
    Abstract: A solid detergent composition and a method of using the composition in a machine dishwasher is described. The product contains a first layer having an oxygen bleaching system, a buffering system of a builder, and an enzyme. The first layer dissolves to deliver a pH of about 8.5 to about 11 in the wash water. A second layer includes an effective amount of an acidity agent selected from an inorganic acid, an organic acid and mixtures thereof, a continuous medium having a melting point in the range of from about 55.degree. C. to about 70.degree. C. and an anti-scaling agent. The second layer dissolves in wash water to deliver a pH of from about 6.5 to about 9.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: July 21, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Isaac Israel Secemski, David John Lang, John Richard Nicholson, Bozena Marianna Piatek
  • Bar composition comprising copolymer mildness actives
    Patent number: 5780405
    Abstract: The present invention is directed to synthetic bar compositions wherein relatively small amounts of specified polyoxyethylene-polypropylene nonionic polymer has been found to enhance mildness of bar compositions.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: July 14, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mengtao He, Michael Fair, Michael Massaro
  • Structured liquid detergent compositions containing nonionic structuring polymers providing enhanced shear thinning behavior
    Patent number: 5776883
    Abstract: The present invention relates to liquid detergent compositions comprising linear or cross-linked, water soluble, highly salt-tolerant, nonionic polymers of MW 10,000 to 1,000,000 Daltons which, when added to structured heavy duty liquids makes the liquid highly shear thinning without decreasing pour viscosity of the composition or increasing it to a point where it is too thick. The compositions are also stable.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: July 7, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: Tirucherai Varahan Vasudevan
  • Fabric softening composition
    Patent number: 5773409
    Abstract: A fabric softening composition is described which has a substantially water-insoluble fabric softening compound and a solubilizing agent which is a non-ionic surfactant and may include a non-surfactant cosolubilizer. The composition is up to at least 70 wt. % soluble when diluted in water to a concentration of 5 wt. % of the mixture of the fabric softening compound and the solubilizing agent. The fabric softening compound comprises a head group and two alkyl or alkenyl chains each having an average chain link equal to a greater than C.sub.14 or a single alkyl or alkenyl chain with an average chain link equal to a greater than C.sub.20.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: June 30, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Ziya Haq, Abid Nadim Khan-Lodhi, Philip John Sams
  • Process for making bar compositions having enhanced deposition of benefit agent comprising use of specific spray dryable adjuvant powders
    Patent number: 5770556
    Abstract: A process for making bars having enhanced deposition of benefit agent wherein the process comprises mixing adjuvant powder compositions which contain a benefit agent or agents and surfactant-containing "base" or regular chips; plodding and extruding to form final bar.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: June 23, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Terence Farrell, David Quinn, Gregory McFann, Gail Beth Rattinger, Liang Sheng Tsaur
  • Amido- and imido- peroxycarboxylic acid bleach granules
    Patent number: 5770551
    Abstract: A bleach granule is provided with 60-100% being an intimate mixture of an amido or imido C.sub.2 -C.sub.30 peroxy acid and a surfactant, in a weight ratio of 20:1 to 1:20. The most preferred peroxyacids are N,N-phthaloylaminoperoxycaproic acid (PAP); monononylamide of either peroxysuccinic acid (NAPSA) or peroxyadipic acid (NAPAA) and N,N'-terephthaloyl-di(6-aminoperoxycaproic acid) (TPCAP). Localized dye damage from the peroxy acid bleach is prevented by the presence of the surfactant. Bleach compositions and a method for cleaning a stained substrate with the bleach granule are also described.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: June 23, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Philip Alan Block, Samuel Qcheng Lin, Robert Madeira Andrews, Scott David Manske
  • Process for accurately controlling moisture or solids levels of compositions with small amounts of or no surfactant
    Patent number: 5770251
    Abstract: The present invention relates to a process for preparing compositions or slurries containing edible surfactants (generally at low levels) or no surfactants at all using an NMR sensor designed to measure water or solids content of the composition on-line.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: June 23, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc
    Inventors: Kevin Michael Finucane, Laurie Coyle
  • Wrap around carton blank and combined wrap around carton and contents
    Patent number: 5765693
    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: June 7, 1995
    Date of Patent: June 16, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: David Frederic Gnadt, Kevin Joseph Markey
  • Process for making aqueous solution compositions comprising polymer hydrogel compositions
    Patent number: 5759969
    Abstract: The invention relates to a process for making hydrogel dispersions/particles capable of trapping water insoluble beneficial agent, yet capable of disintegrating smoothly to impart desirable in use characteristics.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: June 2, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Liang Sheng Tsaur, Shiji Shen, Margaret Jobling, Michael Paul Aronson
  • Thiadiazole dioxide derived oxaziridines as bleaching compounds
    Patent number: 5760222
    Abstract: Bleaches, a method for bleaching substrates using these materials and detergent compositions containing same are reported. The bleaches are thiadiazole dioxide derived mono- and di- oxaziridines. Substrates such as fabrics may be bleached in an aqueous solution containing the oxaziridine.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: June 2, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: Janet Lynn Coope
  • N-acyl oxaziridines as bleach agents
    Patent number: 5755991
    Abstract: Novel bleaches, a method for bleaching substrates using these materials and bleaching compositions containing same are reported. The bleaches are N-acyloxaziridines. Substrates such as fabrics may be bleached in an aqueous solution containing the N-acyloxaziridines.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: May 26, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: Naresh Dhirajlal Ghatlia
  • Liquid compositions comprising copolymer mildness actives
    Patent number: 5756439
    Abstract: The present invention relates to liquid detergent compositions comprising anionic/amphoteric surfactant systems. Addition of specific EO-PO copolymers wherein ratio of anionic to EO-PO polymer is defined has been found to remarkably enhance mildness. In a second embodiment, the invention relates to a method for enhancing mildness in liquid detergent compositions comprising anionic surfactant by adding said defined EO-PO polymers.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: May 26, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mengtao He, Michael Fair, Michael Massaro
  • Process for making polymer matrix capsules containing large hydrocarbon drops suitable for incorporating large size actives to be used in liquid detergent compositions
    Patent number: 5753152
    Abstract: The present invention relates to a process for preparing matrix capsules having hydrocarbon cores sufficiently large to contain large size particle actives which process comprises dispersing actives in hydrocarbon core material, and dispersing the active containing hydrocarbon in a polymer solution to form a polymer matrix emulsion of drops of said core material in said solution. The key to the invention is to obtain the dispersion by utilizing low shear rates previously uncontemplated using the standard shearing machinery of the art. This in turn is accomplished by maintaining the core within defined rheological parameters. By using lower shear rates, applicants were unexpectedly able to prepare capsules capable of stably incorporating large size actives in the core.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: May 19, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: Tirucherai Varahan Vasudevan
  • Thiadiazole dioxides as bleach enhancers
    Patent number: 5753599
    Abstract: Novel bleaches, a method for bleaching substrates using these materials and detergent compositions containing same are reported. The bleaches are thiadiazole dioxides. Substrates such as fabrics may be bleached in an aqueous solution containing the thiadiazole and a peroxygen compound.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: May 19, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Janet Lynn Coope, Mohamed Gaznabi Khan, Karl Friedrich Moschner