Patents Examined by Lorna A. Douyon
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Patent number: 5955412Abstract: A powder blend of 95% Sodium metasilicate anhydrous and 5% sodium lauroyl sarcosinate which is hygroscopic. The mixture is formulated for effective use when 11.25 ounces are dissolved in one gallon of water or diluted up to six gallons of water. The constituent powders are added to the drum at their mixture ratio of 95% sodium metasilicate and 5% sodium lauroyl sarcosinate which will form the blend. The drum is resealed with the processing lid trapping only low moisture air inside. The drum is relocated to the blending machine which rolls and tilts the drum for blending for 30 minutes at 16 rpm, which ensures complete and uniform blending of the 2 constituent powders. Next, the drum is removed from the blending machine, and the processing drum lid is removed in the process room ensuring low moisture exposure. A filling lid is installed which includes an auger feed, and the drum is rotated and placed in the filling stand. An air motor is attached to the auger.Type: GrantFiled: November 21, 1997Date of Patent: September 21, 1999Inventors: Sarah E. Post, Donald J. Ashby, Benny Surratt
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Patent number: 5952285Abstract: A liquid detergent composition containing water; surfactant in a concentration which would in the absence of electrolyte form a pourable hexagonal, or cubic phase at 20.degree. C.; and sufficient dissolved electrolyte to form a substantially Newtonian or optically isotropic liquid.Type: GrantFiled: May 30, 1997Date of Patent: September 14, 1999Assignee: Albright & Wilson LimitedInventor: John Hawkins
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Patent number: 5948747Abstract: A spray-dried particulate detergent composition containinga) 3% to 20% by weight of anionic surfactant,b) 0 to 2% by weight of nonionic surfactant,c) 20% to 65% by weight of inorganic builders, based on water-free active substance, selected from carbonates, hydrogen carbonates and silicate-based builders, andd) 0 to 25% by weight of neutral salts, based on the weight of the spray-dried composition, wherein the spray-dried composition has been aftertreated with nonionic surfactant. The composition has favorable dispensing and solubility properties.Type: GrantFiled: August 11, 1997Date of Patent: September 7, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Fred Schambil, Wolfram Linke, Hubert Freese
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Patent number: 5945395Abstract: The method for producing nonionic detergent granules includes the steps of (I) blending the following (i) to (iii): (i) at least one of a nonionic surfactant and an aqueous nonionic surfactant solution; (ii) an acid precursor of an anionic surfactant capable of having a lamellar orientation; (iii) at least one of an alkali builder and an alkali, porous oil-absorbing carrier, to give a mixture of detergent starting materials containing the nonionic surfactant as a main surfactant component; and (II) heating the mixture obtained in step (I) at least up to a temperature capable of neutralizing the acid precursor of the anionic surfactant in an agitating mixer, and granulating while tumbling the agitating mixer thereby increasing a bulk density, to give nonionic detergent granules having a bulk density of from 0.6 to 1.2 g/ml.Type: GrantFiled: September 29, 1997Date of Patent: August 31, 1999Assignee: KAO CorporationInventors: Hiroyuki Yamashita, Koji Toyoda, Masaaki Sakaue, Yasuji Yamada, Teruo Kubota, Hiroshi Kogurusu
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Patent number: 5945390Abstract: A toilet cleansing block contains anionic surfactant such as a sulfonate, linear primary alcohol such as Neodol.RTM. 23, and binder such as hydroxy ethyl cellulose. The block erodes very slowly, yet at essentially identical rates in hard or soft water. The block is for use with a dispenser for immersion in toilet tanks or under the rim of a toilet basin.Type: GrantFiled: May 17, 1996Date of Patent: August 31, 1999Assignee: S. C. Johnson & Son, Inc.Inventors: Jerome J. Veltman, Russell B. Wortley, Michael E. Klinkhammer
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Patent number: 5935922Abstract: Detergent compositions comprise a surfactant selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and mixtures thereof; a detergency builder comprising zeolite P having a silicon to aluminium ratio not greater than 1.33; from 0.05% to 0.3%, by weight of the composition, anionic N-bonded stilbene optical brightener; and one or more additional components selected from manganese phthalocyaninetetrasulphonate and polymers selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidones, polyvinyloxazolidones, polyvinylimidazoles and mixtures thereof.Type: GrantFiled: September 6, 1996Date of Patent: August 10, 1999Assignee: The Procter & Gamble CompanyInventors: Michael Alan J. Moss, Christiaan A. J. K. Thoen
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Patent number: 5935915Abstract: A system for cleansing the skin comprises a hydrophobic diamond-mesh sponge and a liquid cleansing and moisturizing composition with excellent lather in the same washing and rinsing operation. The system provides improved lather and overall acceptability for mild liquid cleansing compositions which contain moisturizers and especially for those which would otherwise have marginal lather.Type: GrantFiled: May 30, 1997Date of Patent: August 10, 1999Assignee: The Procter & Gamble CompanyInventors: Gail Gordon, Cheryl Oram Schoenberg, Lisa Catherine Winder
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Patent number: 5935916Abstract: A method of making a solid malleable non-hardenable cleansing product for personal use having a plasticine like consistency comprising 35% to 80% by weight of powder material, such as Kaolin, 10% to 25% by weight of surfactant material and 5% to 28% by weight of anhydrous base material to give a pH neutral, vegetarian, soap-free product.Type: GrantFiled: August 28, 1998Date of Patent: August 10, 1999Assignee: The Body Shop International Plc.Inventor: Abigail Righton
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Patent number: 5935917Abstract: Novel chip compositions comprise specifically defined carriers; benefit agent; and thickening agent (e.g., fumed silica). Use of chips comprising excess of these carriers over benefit agent and thickening agent has been found to allow significant deposition of benefit agent without compromising processing. In a second embodiment, the invention comprises bar compositions comprising mixtures of the chips of the invention and chips containing defined surfactant systems. A process for forming the chips of the invention and a method of enhancing deposition without compromising processing using the chips of the invention are also disclosed.Type: GrantFiled: November 5, 1997Date of Patent: August 10, 1999Assignee: Lever Brothers CompanyInventors: Terrence Farrell, Georgia Shafer, James Dalton, Mengtao He, Gregory McFann
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Patent number: 5929010Abstract: Modified polyamines comprise polyalkyleneoxy or carboxylate-like or carboxylate-derived substituents or mixtures thereof, said polyamines are useful in laundry detergent compositions, presoak compositions or conditioning compositions for the control of dye fabric color loss or fading or for the prevention of graying or yellowing of white fabric. The present invention also relates to a method for preventing the fading of colored fabric or the build up of yellow or gray color on white fabric.Type: GrantFiled: January 15, 1998Date of Patent: July 27, 1999Assignee: Procter & Gamble CompanyInventors: Patti Jean Kellett, Eugene Paul Gosselink, Christopher Mark Perkins
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Patent number: 5929019Abstract: An aqueous liquid cleansing and moisturizing composition comprising a base formulation and an additive formulation in which the base formulation and additive formulation are separate but combinedly dispensable from a single packaging means in a predetermined ratio as discrete domains. By adding some surfactant to additive formulation stripe, enhanced lather is obtained. Further, some surfactant is assured, even if there is uneven pumping. Finally, greater consumer control of surfactant of moisturizer levels is afforded.Type: GrantFiled: January 30, 1997Date of Patent: July 27, 1999Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Sudhakar Puvvada, May Shana'a
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Patent number: 5925608Abstract: A detergent product comprising: (i) a foaming composition which includes: a surfactant, a detergent builder and less than 25%, by weight, of water; (ii) a propellant gas; and a (iii) a container. The viscosity of the foaming composition, measured at 20.degree. C. and 1 atmosphere, using a Brookfield viscometer, No. 2 Spindle at 60 rpm, is less than 700 mPa.multidot.s.Type: GrantFiled: January 13, 1998Date of Patent: July 20, 1999Assignee: The Procter & Gamble CompanyInventors: Michael Felix Spruyt, Eddy Vos
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Patent number: 5922664Abstract: Aqueous detergent concentrates containing a mixture of two or more surfactants having a differing resistance to electrolytic salting out in the form of micellar solutions and having pourable viscosities are converted into lamellar solutions upon dilution with water where the dispersion contains a viscosity promoting electrolyte present at a narrow range of concentration. Transformation from the micellar phase to the lamellar phase produces an increase in viscosity such that the diluted concentrate has a viscosity equal to or higher than the viscosity of the original concentrate.Type: GrantFiled: May 6, 1997Date of Patent: July 13, 1999Assignee: Colgate-Palmolive Co.Inventors: Hoai-Chau Cao, Patricia Pagnoul
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Patent number: 5919747Abstract: Preparation of secondary (2,3) alkyl sulfate particles comprises admixing secondary (2,3) alkyl sulfate surfactants with a deagglomerating agent such as zeolite or silica. The resulting powder is agglomerated with a nonionic surfactant, and formed into particles. The particles are then coated with a free-flow aid. Secondary (2,3) alkyl sulfate particles treated in this manner have improved solubility characteristics for use in laundry detergents.Type: GrantFiled: September 8, 1998Date of Patent: July 6, 1999Assignee: The Procter & Gamble CompanyInventors: Takashi Kazuta, Fukuji Ebihara
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Patent number: 5916867Abstract: A process for making a detergent component having a bulk density of at least 650 g/l, which comprises the steps of:(i) forming a structured paste comprising a uniform mixture of, by weight;(a) from 5% to 40% of water;(b) from 30% to 90% of an ingredient selected from the group consisting of anionic, zwitterionic, cationic, ampholytic and nonionic surfactant; water-soluble organic polymer; and mixtures thereof;(c) from 1% to 20% of water-soluble silicate salt;(d) at least 30% of linear alkyl benzene sulphonate;in a continuous process; wherein the maximum pressure reached in step (i) is not less than 10 bar; and (ii) subsequently dispersing said structured paste with one or more builders in powder form; in a high shear mixer at a tip speed of greater than 10 meters per second; wherein the ratio of the structured paste to the builder powder is from 9:1 to 1:5.Type: GrantFiled: July 17, 1996Date of Patent: June 29, 1999Assignee: The Procter & Gamble CompanyInventors: Yousef Georges Aouad, Hayden Guy William Dickenson
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Patent number: 5916868Abstract: A process for preparing a free-flowing high bulk density granular laundry detergent product comprises pre-blending a powder admixture comprising (1) between about 40-90 weight percent of a water soluble detergent builder wherein at least 70 weight percent of the detergent builder is sodium carbonate, and (b) between about 0.5-10 weight percent of alkali metal chloride salt, (2) forming a builder-surfactant powder by blending the step (1) admixture with between about 5-40 weight percent of a detergent active ingredient which is a blend of sulfated ethoxylated alcohols and nonionic ethoxylated alcohols, (3) subjecting the builder-surfactant powder to treatment with water under agglomerating conditions, and (4) drying the detergent composition to provide a free-flowing granular laundry detergent product having a bulk density of at least 650 grams per liter, and in which the detergent granule surfaces are coated with a glossy shell of alkali metal salt crystallites.Type: GrantFiled: June 30, 1998Date of Patent: June 29, 1999Assignee: Church & Dwight Co., IncInventors: Louis R. Mazzola, Anthony J. Falotico
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Patent number: 5916866Abstract: In a process for making detergent tablets comprising spraying a coating of a water-soluble organic polymeric binder onto the exterior of particles of detergent composition containing detergent active and detergency builder and compacting the composition, the improvement comprises spraying an external coating of a film-forming water-soluble organic polymer onto the tablets. The coating on the tablet exterior reduces friability and abrasion and provides extra enhancement of strength while permitting disintegration/dissolution in a wash liquor.Type: GrantFiled: June 25, 1997Date of Patent: June 29, 1999Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Alan Phillip Davies, Sara Jane Edwards, Douglas Wraige
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Patent number: 5914308Abstract: A process for producing detergent agglomerates useful in the production of detergent granules, comprising: (a) providing at least one solid, powder-form detergent component; (b) providing an alkyl polyglycoside of formula I:R.sub.1 O(R.sub.2 O).sub.b (Z).sub.a Iwherein R.sub.1 is a monovalent organic radical having from about 6 to about 30 carbon atoms; R.sub.2 is divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6; and (c) applying the alkyl polyglycoside onto the detergent component to form a detergent agglomerate product.Type: GrantFiled: October 23, 1996Date of Patent: June 22, 1999Assignee: Henkel CorporationInventors: Timothy C. Morris, J. Frederick Hessel
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Patent number: 5914309Abstract: A process for producing detergent tablets by exposing a detergent composition to microwave radiation in the frequency range from 3 to 300,000 MHz while treating the detergent composition with hot air having a temperature of 50.degree. C. to 300.degree. C.Type: GrantFiled: May 7, 1997Date of Patent: June 22, 1999Assignee: Henkel-Ecolab GmbH & Co. OHGInventors: Mario Ulbl, Andreas Potthoff, Sandra Witt, Manfred Klemm
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Patent number: 5885948Abstract: A stress stable lathering skin cleansing liquid composition comprising by weight parts of the liquid composition:(a) from about 0.5 parts to 10 parts of a crystalline, hydroxy-containing stabilizer; for example trihydroxystearin;(b) from about 1 part to about 30 parts of lipid skin moisturizing agent;(c) from about 5 parts to about 30 parts of surfactant having a combined CMC equilibrium surface tension value of from 15 to 50;(d) water;wherein said stress stable lathering skin cleansing liquid composition has a Lipid Deposition Value (LDV) of from about 5 to about 100 and wherein the composition is stable for at least two weeks at 100.degree. F.Type: GrantFiled: October 24, 1997Date of Patent: March 23, 1999Assignee: The Procter & Gamble CompanyInventors: Robert Wayne Glenn, Jr., James Charles Dunbar, Mark Leslie Kacher, Fernando Ray Tollens, Raymond Edward Bolich, Jr., Robert Raymond Schmidt, David John Weisgerber, Wayne Ellis Eccard