Alkali Metal Carbonate, Bicarbonate, Or Sesquicarbornate Component Patents (Class 510/509)
  • Patent number: 6037316
    Abstract: The invention provides an improved surface safe, aqueous, liquid hard surface cleaner which contains a nonionic surfactant, or combination of nonionic and anionic surfactants, a water soluble abrasive, namely, borax pentahydrate, in an amount which takes at least a portion of the abrasive out of solution, and water.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: March 14, 2000
    Assignee: The Clorox Company
    Inventors: Denise A. Garner, James R. Latham, Donald K. Swatling, Kelley A. Henderson, David G. Cohen
  • Patent number: 6034050
    Abstract: A process for producing an anionic surfactant-containing alkali metal silicate-alkali metal carbonate compound providing multiple wash cycle performance, wherein the compound contains 15% to 50% by weight of alkali metal silicate which is x-ray amorphous and has a molar M.sub.2 O to SiO.sub.2 ratio of 1:1.5 to 1:3.3 and M represents an alkali metal, 30% to 70% by weight of alkali metal carbonate, 1.5% to 15% by weight of anionic surfactant and 12% to 19% by weight of water, by providing a powder component selected from alkali metal carbonate, alkali metal silicate, or a mixture of alkali metal carbonate and alkali metal silicate, and agglomerating the powder component with an aqueous composition containing one or more anionic surfactants.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: March 7, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rene-Andres Artiga Gonzalez, Volker Bauer, Katrin Burmeister, Stefan Hammelstein
  • Patent number: 6025315
    Abstract: An automatic dishwashing composition which is in the form of a tablet generally comprises an alkali metal phosphate detergent builder salt, an alkali metal carbonate, a lubricant, a dialkali metal disilicate, a nonionic surfactant, optional a polymer containing sulfonic acid groups, a wax coated chlorine bleach compound, and optionally a solubilizing agent.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: February 15, 2000
    Assignee: Colgate Palmolive Company
    Inventors: Philip A. Gorlin, Steve Phillips
  • Patent number: 6022843
    Abstract: The invention is an improved, non-phosphate, non-bleach, agglomerated laundry booster which has a) a solids portion with i) at least 5% by weight of a first builder selected from the group consisting of alkali metal carbonate, alkali metal bicarbonate, alkali metal sesquicarbonate, and mixtures thereof; and ii) a second builder of at least 25% by weight alkali metal tetraborate pentahydrate; and b) i) a first liquid which comprises an anionic, acidic surfactant, in an amount no greater than about 10% by weight; and ii) a second liquid which comprises an agglomerating agent. The first liquid is neutralized by the first builder of a)i) to form a first set of particles, the second builder forms a second set of particles, and the second liquid co-agglomerates both the first and second sets of particles. The invention also provides a method for preparing this laundry booster.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: February 8, 2000
    Assignee: The Clorox Company
    Inventors: Philip C. Shanks, Arnold J. Lim, William P. Sibert
  • Patent number: 6017873
    Abstract: Two processes for producing agglomerated high density detergent compositions are provided. On process comprises blending secondary (2,3) alkyl sulfate with a detergency builder to form a homogeneous powder mixture which is agglomerated with a surfactant paste mixture comprising C.sub.10-20 linear alkylbenzene sulfonates, C.sub.10-20 alkyl sulfates, C.sub.10-18 alkyl ethoxy sulfates having from about 1 to about 7 ethoxy groups, alcohol ethoxylates and polyethylene glycol and drying the agglomerates. Another process comprises blending secondary (2,3) alkyl sulfate with a detergency builder to form a homogeneous powder mixture which is agglomerated with a liquid acid precursor of C.sub.10-20 linear alkylbenzene sulfonate so as to form an agglomerated detergent composition which has a density of at least about 650 g/l.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: January 25, 2000
    Assignee: The Procter & Gamble Compnay
    Inventors: Stephen William Sikra, James Bert Royston
  • Patent number: 6013617
    Abstract: Pulverulent detergent compositions, particularly suitable for washing and dishwashing machines, include a surfactant and a builder therefor, such builder comprising an alkali metal silicate advantageously having a SiO.sub.2 /M.sub.2 O molar ratio ranging from about 1.6 to 3.5, at least 30% and preferably at least 50% of the silicon atoms of which being in the Q.sub.2 and Q.sub.3 configurations, or such builder comprising said alkali metal silicate sorbed onto a particulate inert support substrate. Also, detergent compositing comprising (a) an aqueous solution of an alkali metal silicate having an SiO.sub.2 /M.sub.2 O molar ratio ranging from about 1.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: January 11, 2000
    Assignee: Rhone-Poulenc Chimie
    Inventors: Patrick Boittiaux, Daniel Joubert, Pascal Taquet, Jean-Claude Kiefer, Jerome Le Roux
  • Patent number: 6008174
    Abstract: A powder laundry detergent has improved solubility in the laundering solution by incorporating an acidulant that, in its acid form, is sparingly soluble in water and, in its salt form, is soluble in water. In particular, the acidulant is selected from the group of acids that in an acid form are soluble in water in an amount not greater than about 0.7% by weight at 25.degree. C. and in a salt form are soluble in water at least in an amount of about 15% by weight at 25.degree. C. A method of improving the solubility of a powder detergent includes admixing an acidulant in the powder detergent where the acidulant is selected from the group of acids that in an acid form are soluble in water in an amount not greater than about 0.7% by weight at 25.degree. C. and in a salt form are soluble in water at least in an amount of about 15% by weight at 25.degree. C.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: December 28, 1999
    Assignee: Amway Corporation
    Inventors: Steven J. Brouwer, Michael J. Wint
  • Patent number: 5998345
    Abstract: An automatic dishwashing composition which is in the form of a tablet generally comprises an alkali metal phosphate detergent builder salt, an alkali metal carbonate, a dialkali metal disilicate, a nonionic surfactant, optional a polymer containing sulfonic acid groups, a wax coated chlorine bleach compound, and a hydrotrope.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: December 7, 1999
    Assignee: Colgate Palmolive Company
    Inventors: Philip Gorlin, Steve Phillips, Divaker Kenkare
  • Patent number: 5998351
    Abstract: A powdered laundry detergent is provided with discrete whitening agent particles that do not adversely affect the bulk appearance of the detergent during storage. The detergent includes from about 5% to about 80% of an inorganic carrier, from about 1% to about 90% of a detergent surfactant, and from 0.1% up to about 30% of the discrete whitening agent particles. The whitening agent particles include a whitening agent and a surfactant. The surfactant for the whitening agent particle includes those anionics, nonionics, zwitterionics, ampholytics, cationics, and mixtures thereof that are solids in a temperature range of from about 32.degree. F. (0.degree. C.) to about 180.degree. F. (82.degree. C.). The whitening agent particles, in a more desirably form, include a whitener and water. The particles are formed by extruding a homogenous mass into discrete particles. The homogenous mass includes either a whitening agent, a surfactant, and optionally a plasticizer or a whitening agent and water.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: December 7, 1999
    Assignee: Amway Corporation
    Inventors: Steven J. Brouwer, Michael J. Wint
  • Patent number: 5994285
    Abstract: A stable structured liquid laundry detergent composition is provided which is particularly effective for removing oily soils from fabrics. The detergent composition comprises, by weight:(a) from about 10% to about 20% of a linear alkyl benzene sulfonate anionic surfactant;(b) from about 0% to about 10% of an alkyl ether sulfate anionic surfactant;(c) from about 5% to about 30% of an alkali metal phosphorous-containing builder;(d) from about 2% to about 15% of sodium carbonate; the total amount of components (c) plus (d) in the detergent composition being at least about 10%;(e) from about 0.1% to about 5% of an ethoxylated amine quaternary cationic surfactant having the following structural formula: ##STR1## wherein R.sub.1 represents a linear branched or substituted C.sub.8 -C.sub.18 alkyl, alkaryl, aryl, alkenyl or ether moiety; R.sub.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: November 30, 1999
    Assignee: Colgate-Palmolive Co.
    Inventors: Amit Sachdev, Suzanne M. Jogun
  • Patent number: 5994290
    Abstract: A solid textile detergent formulation, comprising(A) 1-60% by weight of inorganic builders based on crystalline or amorphous aluminosilicates, crystalline or amorphous silicates, carbonates and/or phosphates,(B) 0.1-25% by weight of one or more glycine-N,N'-diacetic acid derivatives I ##STR1## where R is an organic radical and M is hydrogen or a cation, as organic cobuilders,(C) 1-40% by weight of anionic surfactants and(D) 0.5-30% by weight of nonionic surfactants.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: November 30, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Birgit Potthoff-Karl, Beate Ehle, Angelika Funhoff, Dieter Kiessling, Richard Baur, Thomas Greindl
  • 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: 5990067
    Abstract: A composition and method for cleaning concrete and asphalt surfaces from oil and grease stains includes a combination of various constituents, namely baking soda, calcium carbonate, crushed corn, detergent, fly ash, portland cement and/or kiln dust. Other compositions also include quartz sand, ground corn cobs, microorganisms and coloring agents. The method involves contact of the present formulation with concrete/asphalt surfaces, preferably administered in lines spanning the dimensions of the oil stain to be cleaned. The material is swept over the oil stain with a broom or other suitable device to achieve a relatively uniform application. Water is applied to dampen the formulation, thus activating the detergent in the formulation and to hold down dust during the cleaning operation. The formulation rests on the surface for a sufficient amount of time to permit the detergents and other agents to dissolve and/or otherwise dissipate the oil stain.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: November 23, 1999
    Inventors: Todd Franssen, Carla Franssen, Leonard R. Carlo
  • Patent number: 5990068
    Abstract: A powder laundry detergent has improved solubility in the laundering solution and improved dispensability by incorporating an acidulant that, in its acid form, is sparingly soluble in water and, in its salt form, is soluble in water. In particular, the acidulant is selected from the group of acids that in an acid form are soluble in water in an amount not greater than about 8%, preferably no greater than about 0.7% by weight at 25.degree. C. and in a salt form are soluble in water at least in an amount of about 15% by weight at 25.degree. C. A method of improving the solubility of a powder detergent includes admixing an acidulant in the powder detergent where the acidulant is selected from the group of acids that in an acid form are soluble in water in an amount not greater than about 8%, preferably not greater than about 0.7% by weight at 25.degree. C. and in a salt form are soluble in water at least in an amount of about 15% by weight at 25.degree. C.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: November 23, 1999
    Assignee: Amway Corporation
    Inventors: Steven J. Brouwer, Michael J. Wint
  • 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: 5977047
    Abstract: A laundry detergent composition in which the solids content comprises an active surfactant, at least about 60 wt. %, based on the weight of the solids of a soluble alkaline carbonate builder, and a minor amount of a carboxylic polymer which is a copolymer of about 70 to about 95 wt. % of acrylic acid and about 5 to about 30 wt. % of maleic acid based on the weight of the polymer, such copolymer having a number average molecular weight of about 1500 to about 2500. Preferably the composition also contains a minor amount of a protease enzyme.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: November 2, 1999
    Assignee: Church & Dwight Co., Inc.
    Inventor: Charles D. Carr
  • Patent number: 5972857
    Abstract: Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Liquid formulations comprising carbonates, detergent surfactant, such as oleate, alcohol ethoxylates, etc., and neutralized phosphoric acid are sprayed onto apples, lettuce and the like to remove soil and unwanted deposits, especially wax. Articles for applying the compositions to produce by spraying are disclosed.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: October 26, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Brian Joseph Roselle, Toan Trinh
  • Patent number: 5968891
    Abstract: A process for the preparation of a granular detergent composition or component having a bulk density of at least about 700 g/l up to a bulk density of about 1100 g/l comprising: (a) providing a low density, particulate detergent or component stock comprising an organic surfactant, a water-soluble inorganic salt and, optionally, other materials, the stock having a bulk density of no more than about 600 g/l; (b) subjecting the low density, particulate stock to high-shear agglomeration whereby the particulate stock is subjected to high-shear forces in intimate contact with a liquid consisting essentially of water in an amount and for a time sufficient (1) to fluidize, wet with water, and mechanically mill the stock to a smaller particle size and (2) to partially agglomerate the wetted, milled stock; (c) subjecting the partially agglomerated stock to rotating agglomeration for a time sufficient to produce, when dried, a further agglomerated, granular detergent composition or component having a bulk density of at
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: October 19, 1999
    Assignee: Colgate-Palmolive Co.
    Inventors: Gil Albarracin Mallari, Hans Jorgen Andresen, Joseph Raymond Schorle
  • Patent number: 5965515
    Abstract: Amine functionality-containing materials such as cationic cellulose-based compositions are coated to suppress their tendency to generate "amine odors" in an alkaline pH environment. Further provided are effervescent compositions, liquid or solid soap formulations, fabric softeners, shampoos and the like comprising such materials coated with a suitable coating composition.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: October 12, 1999
    Assignees: The Andrew Jergens Company, Kao Corporation
    Inventor: Allen H. Rau
  • Patent number: 5962393
    Abstract: A powdered abrasive cleanser that exhibits superior soil removal properties and surface safety is provided. The cleanser includes a surfactant, an optional source of active chlorine, a borax pentahydrate compound that is preferably sodium tetraborate pentahydrate, and optionally an alkaline detergent builder and/or calcium carbonate.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: October 5, 1999
    Assignee: The Clorox Company
    Inventors: Robert L. Blum, Denise A. Garner, Carl M. Kling
  • Patent number: 5962389
    Abstract: A carbonate-based detergent having improved properties is provided. Preferably, a base detergent includes an alkali metal carbonate builder, an anionic surfactant, an inert diluent, a copolymer, and a chlorine scavenger. The base detergent may be mixed with an agglomerate including nonionic surfactants and a builder such as an alkali metal carbonate. The detergent has improved color retention properties. A method of preparing the improved detergent composition is also provided.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: October 5, 1999
    Assignee: The Dial Corporation
    Inventors: Terrell L. Partee, Charles Varker, Elaine T. Morse, Ronald D. Morgan
  • Patent number: 5962397
    Abstract: Disclosed are granular detergent components and processes for making these components. The processes comprise the steps of: i) forming the granular detergent component by drying an aqueous solution, the aqueous solution comprising at least 50% of a cationic surfactant, to form a powder; and then ii) densifying the powder in the presence of a detergent powder selected from the group consisting of aluminosilicate, carbonate, bicarbonate, silicate, sulphate, citrate, clay and mixtures thereof and an acid selected from the group consisting of citric, sulphuric, hydrochloric, polycarboxylic acids and mixtures thereof. This granular detergent component consists essentially of the cationic surfactant, the acid and the particulate builder and the granular detergent component has a reserve acidity of at least 1.0 g HCl/100 g.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: October 5, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Mark William Ridyard, David William York
  • Patent number: 5958871
    Abstract: A detergent composition is provided which contains a zeolite builder having a particle size, d.sub.50 of less than 1 micrometer; and a bicarbonate builder. The zeolite builder and bicarbonate builder are present in a ratio of from 5:1 to 1:1. Low levels of carbonate builder may be present such that the weight ratio of carbonate builder to the bicarbonate builder is less than 1:1.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: September 28, 1999
    Assignee: The Procter & Gamble Company
    Inventor: Jonathan Richard Clare
  • Patent number: 5958865
    Abstract: A process of making a powdered detergent aggregate comprising in a single pass process the step of introducing an absorptive soda ash into an agglomerator, forming a soda ash curtain within the agglomerator, spraying a surfactant onto the soda ash curtain, forming a curtain of resultant soda ash/surfactant product, spraying a silicate thereon, and adding additional surfactant to produce a non-caking soda ash/silicate/surfactant aggregate having 40-69 weight percent soda ash, 7-14 weight percent silicate, and 14-26 weight percent surfactant having a loose bulk density of from 600-1000 g/l.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: September 28, 1999
    Assignee: FMC Corporation
    Inventors: Eric J. Kline, Jim Mahar, Anthony P. Zampirri
  • Patent number: 5958864
    Abstract: A process for producing a particulate amorphous alkali metal silicate having a molar ratio of M.sub.2 O to SiO.sub.2 of 1:1.5 to 1:3.3 bya) spray-drying an aqueous mixture of amorphous alkali metal silicate,b) impregnating the spray-dried amorphous alkali metal silicate with an aqueous dispersion or solution of detergent composition components containing at least one organic component, andc) optionally drying the impregnated amorphous alkali metal silicate.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: September 28, 1999
    Assignee: Henkel Kommandiggesellschaft auf Aktien
    Inventors: Rene-Andres Artiga Gonzalez, Hubert Freese, Manfred Greger, Kathrin Schnepp, Adolf Wiche
  • Patent number: 5958854
    Abstract: A chemical cleaning composition for silver- or copper-containing surfaces consists of a water-soluble solid or powder comprising thiourea or a derivative thereof, and is formulated in unit application form, e.g. in tablet or sachet form. A preferred composition comprises up to 60% thiourea or a derivative thereof; up to 4% surfactant; not more than 40% acidifier; less than 20% disintegrant; up to 10% binder; 0-1% lubricant; and up to 40% diluent.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: September 28, 1999
    Assignee: Reckitt & Colman Products Limited
    Inventors: Mark Laing, Mark Beeston
  • Patent number: 5955418
    Abstract: A process for preparing detergent particles containing secondary (2,3) alkyl sulfate surfactant comprises admixing secondary (2,3) alkyl sulfate surfactants with powdered detersive ingredients and admixing the resulting powder with a surfactant paste. The resulting detergent dough is extruded through an orifice and sized to provide particles. The particles are coated with a free-flow aid. The resulting detergent particles exhibit improved solubility and are especially useful in laundry detergents.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: September 21, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Takashi Kazuta, Fukuji Ebihara, Kinji Ogami
  • Patent number: 5955419
    Abstract: Laundry particles comprising: a) a porous carrier selected from the group consisting of Zeolite X, Zeolite Y, and mixtures thereof; and b) laundry agents comprising from about 5% to about 100% by weight of deliverable agents, preferably comprising from about 0.1% to about 50% blocker agents.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: September 21, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Dennis Joseph Barket, Jr., Jill Bonham Costa, Lois Sara Gallon, Janet Sue Littig
  • Patent number: 5952285
    Abstract: 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: Grant
    Filed: May 30, 1997
    Date of Patent: September 14, 1999
    Assignee: Albright & Wilson Limited
    Inventor: John Hawkins
  • Patent number: 5952289
    Abstract: The subject invention involves laundry bar compositions comprising:(a) from about 20% to about 70% surfactant, the surfactant consisting essentially of from about 50% to 100% soap and from 0% to about 50% alkylbenzene sulfonate;(b) from about 12% to about 24% water;(c) from about 61/4% to about 20% calculated excess alkali metal carbonate;(d) from about 2% to about 20% water-soluble inorganic strong-electrolyte salt;(e) from 0% to about 4% whole-cut starch;(f) from 0% to about 8% added alkali metal bicarbonate;(g) from 0% to about 30% phosphate builder;(h) from 0% to about 40% insoluble filler; and(j) from 0% to about 15% other ingredients selected from other builders, chelants, enzymes, soil release polymers, dye transfer inhibiting agents, fabric softeners, bleaching agents, gums, thickeners, binding agents, other starches, soil suspending agents, optical brighteners, colorants and opacifiers, perfumes, bluing agents, and mixtures thereof;the bar having a firmness measurement of at least about 10 kg.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: September 14, 1999
    Inventors: Rodney Mahlon Wise, Robert Lindsay Apke, Iris Josefina Reyes Rojas
  • Patent number: 5948747
    Abstract: 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: Grant
    Filed: August 11, 1997
    Date of Patent: September 7, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Fred Schambil, Wolfram Linke, Hubert Freese
  • Patent number: 5945395
    Abstract: 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: Grant
    Filed: September 29, 1997
    Date of Patent: August 31, 1999
    Assignee: KAO Corporation
    Inventors: Hiroyuki Yamashita, Koji Toyoda, Masaaki Sakaue, Yasuji Yamada, Teruo Kubota, Hiroshi Kogurusu
  • Patent number: 5932021
    Abstract: A flux-removing, aqueous cleaning composition contains: (A) a solvent phase consisting essentially of water; and (B) a flux-removing phase containing an alkaline salt component and a surfactant formulation, the alkaline salt component containing at least one alkali metal salt, and the surfactant formulation containing at least one fluorinated, nonionic surfactant. A method of removing rosin flux residues from a substrate, preferably a substrate of an electronic circuit assembly, involves (a) cleaning the substrate with the above-described aqueous cleaning composition for a period of time sufficient to substantially emulsify the soldering rosin flux residues to form emulsified rosin flux residues; and (b) removing the emulsified rosin flux residues from the substrate.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: August 3, 1999
    Inventors: Francis R. Cala, Richard A. Reynolds
  • Patent number: 5932527
    Abstract: Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Liquid formulations comprising carbonates, detergent surfactant, such as oleate, alcohol ethoxylates, etc., and neutralized phosphoric acid are sprayed onto apples, lettuce and the like to remove soil and unwanted deposits, especially wax. Articles for applying the compositions to produce by spraying are disclosed.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: August 3, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Brian Joseph Roselle, Toan Trinh
  • Patent number: 5929021
    Abstract: A process for producing a detergent powder or a composition therefore involving partial granulation in a high or low shear granulator followed by granulation in a very low shear mixer, for example a fluid bed is disclosed. The process allows powders to be produced over a wide range of bulk densities without the use of a spray-drying step.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: July 27, 1999
    Assignee: Lever Brothers, Division of Conopco, Inc.
    Inventors: Vinodkumar Ramniranjan Dhanuka, Fakhruddin Esmail Pacha
  • Patent number: 5929071
    Abstract: The invention is directed to a method useful in the treatment of preterm labor, dysmenorrhea and for the stoppage of labor preparatory to cesarean delivery.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: July 27, 1999
    Assignee: Merck & Co., Inc.
    Inventor: Joseph J. Salata, Jr.
  • Patent number: 5925610
    Abstract: Maleate copolymers comprise less than 1% residual total free monomer and have a weight average molecular weight of 1,000 to 4,000. The copolymer comprises at least 50 mole percent maleate, 10 to 50 mole percent acrylate monomer and 1 to 10 mole percent of at least one non-ionic comonomer. The copolymers are useful in inhibiting deposition of water hardness ions, in detergents and as dispersants in aqueous slurries. Copolymers are prepared by an aqueous solution polymerization process, comprising the steps of initially neutralizing at least 70%, on a molar basis, of the charge of a maleate monomer, followed by the slow addition of at least one polymerizable comonomer, together with an oxidative free radical initiator and a suitable metallic ion reductant, for synthesis over at least a three hour period at 80 to 100.degree. C., followed by the addition of more initiator.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: July 20, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Anne-Marie B. Austin, Allen M. Carrier, Michael L. Standish, James H. Belcher, deceased
  • Patent number: 5916868
    Abstract: 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: Grant
    Filed: June 30, 1998
    Date of Patent: June 29, 1999
    Assignee: Church & Dwight Co., Inc
    Inventors: Louis R. Mazzola, Anthony J. Falotico
  • Patent number: 5902415
    Abstract: An alkali metal cleaning composition for cleaning metal and for inhibiting corrosion of metal. The composition is composed of an alkali carbonate salt, a surfactant, and a corrosion inhibitor. A preferred corrosion inhibitor is an alkali metal silicate. Additional metal corrosion inhibitors such as a combination of a triazole compound and an alkali metal borate also can be employed. Such alkali carbonate compositions are readily water soluble and remain in solution over prolonged storage periods.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: May 11, 1999
    Assignee: Church & Dwight Co., Inc.
    Inventors: Steven Dunn, Gale A. Byrnes
  • Patent number: 5902781
    Abstract: Composite particles comprise a bleach catalyst plus one or more detersive enzymes. The particles are especially useful in automatic dishwashing compositions. Thus, a cobalt (III) or manganese (III) bleach catalyst is combined with protease or amylase enzymes and a carrier. The resulting particles are used in combination with perborate or percarbonate bleach to clean dishware in an automatic machine.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: May 11, 1999
    Assignee: The Procter & Gamble Company
    Inventor: Jeffrey Donald Painter
  • Patent number: 5900396
    Abstract: Carbonate built laundry detergents having improved cleaning properties and comprising two ethoxylated fatty alcohol nonionic surfactants having different average numbers of carbon atoms in the fatty alcohol and average numbers of ethoxy groups, a sulfated ethoxylated fatty alcohol anionic surfactant, and an N-alkyl and/or unsaturated hydrocarbyl amine of an alkanoic acid or salt thereof as an amphoteric surfactant.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: May 4, 1999
    Assignee: Church & Dwight Co., Inc.
    Inventors: Francis R. Cala, Charles D. Carr, Bruce R. Conley
  • Patent number: 5888313
    Abstract: A filter pouch cleaner, for cleaning coffee and tea makers, has a top and bottom filter layer made from tea bag paper. The top and bottom filter layers are joined together along and adjacent to their outer edges to form a sealed pouch therebetween. The pouch is filled with a powdered cleaner compound that includes trisodium phosphate, sodium metasillicate and sodium perborate, along with soda ash as a filler. To facilitate the biodegradability and the safety of the cleaner compound, tripolyphosphate and a trace of blue dye powder are included in the cleaner compound. To clean a brewbasket and dispenser of a coffee or tea maker, the filter pouch cleaner is placed in the brewbasket. The brewbasket is then placed above the dispenser and filled with hot water. The hot water soaks through the filter and dissolves the cleaner compound. The hot water and dissolved cleaner flows out of the brewbasket and fills the dispenser.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: March 30, 1999
    Assignee: Coffee Dispenser Cleaner Company, LLC
    Inventor: Steve F. West
  • Patent number: 5885949
    Abstract: A tableted household cleaning composition for cleaning glass and other hard surfaces and methods for making and using the same are disclosed. The cleaning composition is in tablet form and includes an acidic component selected from the group consisting of carboxylic acids, their salts and mixtures thereof; a basic component selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates and mixtures thereof; and polyvinyl alcohol.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: March 23, 1999
    Assignee: Amway Corporation
    Inventor: Charles L. Stamm
  • 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
  • Patent number: 5834411
    Abstract: An aqueous metal cleaning composition is provided which comprises an alkalinity providing agent such as alkali metal carbonate and/or bicarbonate salts and a low foaming surfactant. The aqueous cleaning solution has specific foam height and foam collapse characteristics, and provides for substantially complete phase separation of a contaminant phase from the aqueous cleaning composition such that there is substantially no aqueous phase drag out into the contaminant phase; and the contaminant phase can be removed easily, and the aqueous cleaning solution can be recovered and reused.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: November 10, 1998
    Assignee: Church & Dwight Co., Inc
    Inventors: Steven A. Bolkan, Gale A. Byrnes, Steven Dunn, Alfredo Vinci, Antony E. Winston, Patricia L. Phillips
  • Patent number: 5827815
    Abstract: Carbonate built laundry detergents having improved cleaning properties and comprising an ethoxylated fatty alcohol nonionic surfactant, a sulfated ethoxylated fatty alcohol anionic surfactant, and an N-alkyl and/or unsaturated hydrocarbyl amine of an alkanoic acid or salt thereof as an amphoteric surfactant.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: October 27, 1998
    Assignee: Church & Dwight Co., Inc.
    Inventors: Francis R. Cala, Charles D. Carr, Bruce R. Conley
  • Patent number: 5824629
    Abstract: The invention relates to a hair cleansing and care agent in tablet form, wherein the tablet comprises a base compound which, upon contact with water, sets free a physiologically harmless gas, preferably CO.sub.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: October 20, 1998
    Inventor: Erich Petritsch
  • Patent number: 5821208
    Abstract: Printing applicators such as metal stencils and screens used to apply solder paste to printed circuit boards are cleaned to remove accumulated solder paste therefrom by an aqueous alkaline salt cleaner. The aqueous cleaner of the present invention comprises alkaline salts such as alkali metal carbonates, a surfactant formulation which contains at least one nonionic surfactant, an alkali metal silicate corrosion inhibitor and stabilizers to maintain the components in aqueous solution. The cleaner of the present invention contains no VOCs and is an effective and safe replacement for alcohol solvents previously used to clean solder paste from screens and stencils.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: October 13, 1998
    Assignee: Church & Dwight Co., Inc.
    Inventors: Francis R. Cala, Richard A. Reynolds, Eric E. Eichhorn
  • Patent number: 5821216
    Abstract: Carbonate built laundry detergents having improved cleaning properties and comprising a sulfated ethoxylated fatty alcohol anionic surfactant and two ethoxylated fatty alcohol nonionic surfactants having different average numbers of carbon atoms in the fatty alcohol and average numbers of ethoxy groups.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: October 13, 1998
    Assignee: Church & Dwight Co., Inc.
    Inventors: Francis R. Cala, Charles D. Carr, Bruce R. Conley
  • Patent number: 5814596
    Abstract: The present invention provides a structured paste which is substantially free of LAS and which is suitable for processing into a high bulk density, high active granular detergent. Surfactant pastes of the present invention have a viscosity of at least 10 Pa.s (measured at 70.degree. C. and 25 sec.sup.-1) and comprise: from 30% to 90% by weight of anionic surfactant; from 0% to 50% by weight of nonionic surfactant; from 0.5% to 20% by weight of either a polymeric cationic material or a polar amino acid; and from 1% to 40% by weight of water.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: September 29, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Yousef Georges Aquad, Brian Joseph Pangrle, Johan Gerwijn L. Pluyter