Patents Represented by Attorney, Agent or Law Firm K. W. Zerby
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Patent number: 5710115Abstract: Automatic dishwashing detergent compositions comprising a diacyl peroxide particle are disclosed. The diacyl peroxide particles preferably comprise diacyl peroxide and a stabilizing additive in which the diacyl peroxide does not dissolve. The stabilizing additive is selected from the group consisting of inorganic salts, transition metal chelants, antioxidants, binding agents, coating agents, and mixtures thereof. The compositions are effective in removing stains from plastics under various temperature and pH conditions.Type: GrantFiled: September 11, 1996Date of Patent: January 20, 1998Assignee: The Procter & Gamble CompanyInventors: Rashesh Naresh Patel, Edward Paul Fitch V, Jeffrey Donald Painter, Alan Scott Goldstein
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Patent number: 5710119Abstract: A detergent composition comprising a surfactant system substantially free of linear alkyl benzene sulfonate and a copolymer of N-vinylimidazole and N-vinylpyrrolidone. The copolymer is present in the detergent composition in an amount of 0.01% to 10.0% by weight and has an average molecular weight of from 5,000 to 1,000,000. The molar ratio of N-vinylimidazole to N-vinylpyrrilidone in the copolymer is from 1:1 to 1:0.2.Type: GrantFiled: January 16, 1996Date of Patent: January 20, 1998Assignee: The Procter & Gamble CompanyInventors: Alfred Busch, Andre Christian Convents
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Patent number: 5710118Abstract: A detergent composition comprises clay, a surfactant system and a copolymer of N-vinylimidazole and N-vinylpyrrolidone. The copolymer is present in the detergent composition in an amount of 0.01% to 10.0% by weight. The copolymer has an average molecular weight of from 5,000 to 50,000 and a molar ratio of N-vinylimidazole to N-vinylpyrrolidone of from 1:1 to 1:02.Type: GrantFiled: January 16, 1996Date of Patent: January 20, 1998Assignee: The Procter & Gamble CompanyInventors: Alfred Busch, Andre Christian Convents, Petrus Johannes Leeuwen
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Patent number: 5710122Abstract: The present invention relates to novel sulfonates based upon alcohol perfumes. The sulfonates have the general formulas of (I) and (II): ##STR1## where R and Z are independently selected from the group consisting of nonionic or anionic, substituted or unsubstituted C.sub.1 -C.sub.30 straight, branched or cyclic alkyl, alkenyl, alkynyl, alkylaryl or aryl group; Y is a radical that, upon hydrolysis of the sulfonate, forms an alcohol with a boiling point at 760 mm Hg of less than about 300.degree. C. that is a perfume; and excluding geranyl and neryl methanesulfonates. Preferably these sulfonate compounds are incorporated into laundry and cleaning compositions.Type: GrantFiled: December 20, 1995Date of Patent: January 20, 1998Assignee: The Procter & Gamble CompanyInventors: Mark Robert Sivik, Frederick Anthony Hartman
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Patent number: 5707950Abstract: The invention concerns laundry detergent compositions comprising lipase (especially the variant D96L of the native lipase derived from Humicola lanuginosa), protease, and surfactant, wherein said compositions comprise levels of lipase enzyme and protease enzyme such that the whitening performance of said compositions is increased. These compositions deliver an improved whiteness maintenance and/or dingy clean-up on fabrics.Type: GrantFiled: October 11, 1996Date of Patent: January 13, 1998Assignee: The Procter & Gamble CompanyInventors: Chandrika Kasturi, Andre Baeck, Ann Margaret Wolff
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Patent number: 5707959Abstract: A process for preparing high density detergent compositions is provided. The process comprises the steps of: (a) continuously mixing a detergent surfactant paste and dry starting detergent material into a high speed mixer/densifier to obtain detergent agglomerates, wherein the ratio of the surfactant paste to the dry detergent material is from about 1:10 to about 10:1; (b) mixing the detergent agglomerates in a moderate speed mixer/densifier to further densify and agglomerate the detergent agglomerates; and (c) drying said detergent agglomerates so as to form the high density detergent composition. The dry detergent material may contain a builder material including a crystalline microstructure in which a carbonate anion, a calcium cation and at least one water-soluble cation are contained. The process may include one or more additional processing steps such as adding a coating agent such as the builder material described herein after the moderate speed mixer/densifier to facilitate and control agglomeration.Type: GrantFiled: March 13, 1996Date of Patent: January 13, 1998Assignee: The Procter & Gamble CompanyInventors: Eugene Joseph Pancheri, Scott William Capeci, Richard Thomas Owen
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Patent number: 5705464Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt bleach catalyst having the formula:?Co(NH.sub.3).sub.n (M).sub.m (B).sub.b !T.sub.ywherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; m is 0, 1 or 2 (preferably 1); B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably 0), and when b=0, then m+n=6, and when b=l, then m=0 and n=4; and T is one or more appropriately selected counteranions present in a number y, where y is an integer to obtain a charge-balanced salt (preferably y is 1 to 3; most preferably 2 when T is a -1 charged anion); and wherein further said catalyst has a base hydrolysis rate constant of less than 0.23 M.sup.-1 s.sup.-1 (25.degree. C.).Type: GrantFiled: February 6, 1997Date of Patent: January 6, 1998Assignee: The Procter & Gamble CompanyInventors: William Michael Scheper, Christopher Mark Perkins
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Patent number: 5705466Abstract: A granular detergent composition having a bulk density of at least 650 g/l and comprising at least 5% by weight of anionic surfactants, nonionic surfactants, or mixtures thereof, and further comprising: i) from 2% to 50% by weight of granular alkalimetal percarbonate, ii) from 0.7% to 20% by weight of powdered silicate, and wherein silicate particles having a particle size diameter of less than 425 micrometers comprise at least 0.7% by weight of the composition.Type: GrantFiled: January 24, 1996Date of Patent: January 6, 1998Assignee: The Procter & Gamble CompanyInventors: Gerard Marcel Baillely, Thomas Edward Cook
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Patent number: 5705469Abstract: A process is disclosed for the manufacture of a liquid detergent composition comprising a sulphiting agent and an enzyme system. Said enzyme system and said sulphiting agent interact together so as to generate odors which result in an odor deviation in said detergent composition. In the process of the invention, said enzyme system and said sulphiting agent are intimately mixed together separately from the remainder of the detergent composition so as to generate said odors outside the remainder of said detergent composition. Also disclosed is an enzyme premix consisting essentially of said enzyme system and said sulphiting agent.Type: GrantFiled: April 20, 1995Date of Patent: January 6, 1998Assignee: The Procter & Gamble CompanyInventors: Alan David Blake, Jozef Philemona R. Geudens, Paul Andrew Hardy, Fabrice Francois J. Questel
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Patent number: 5703031Abstract: A granular laundry composition is disclosed which comprises a source of available-oxygen, a stabilizer like chelant together with an alkali metal salt of silicate. Such compositions allow to produced wash solutions wherein the bleaching activity is retained upon longer periods of time. Optionally said compositions may further comprise a soil suspender and be formulated so as to allow to keep the pH of the wash solution below 9.5 and thereby boost the cleaning performance on particulate soil (clay).Type: GrantFiled: March 12, 1996Date of Patent: December 30, 1997Assignee: Procter & Gamble CompanyInventors: Marina Trani, Guiseppe Trigiante, Ellie Marie Frasier
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Patent number: 5703030Abstract: Bleach compositions comprising certain carboxylate-containing cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents and laundry compositions which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt catalysts having the formula:?Co(NH.sub.3).sub.5 M!T.sub.ywherein cobalt is in the +3 oxidation state; and M is a substituted and unsubstituted C.sub.1 -C.sub.30 carboxylate-containing ligand having the formula RC(O)O--.Type: GrantFiled: October 25, 1996Date of Patent: December 30, 1997Assignee: The Procter & Gamble CompanyInventors: Christopher Mark Perkins, William Michael Scheper
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Patent number: 5703034Abstract: The present invention relates to bleach catalyst-containing composite particles suitable for incorporation into granular detergent compositions, said composite particles comprising:(a) from about 1% to about 60% of bleach catalyst (preferably a cobalt catalyst); and(b) from about 40% to about 99% of carrier material that melts within the range of from about 38.degree. C. to about 77.degree. C. (preferably selected from the group consisting of polyethylene glycols, paraffin waxes, and mixtures thereof), and to processes for making these particles. These particles are particularly useful components of detergent compositions, such as laundry detergent compositions, hard surface cleaners, and especially automatic dishwashing detergent compositions.Type: GrantFiled: October 30, 1995Date of Patent: December 30, 1997Assignee: The Procter & Gamble CompanyInventors: Edward Robert Offshack, Jeffrey Donald Painter, Melissa Dee Aquino
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Patent number: 5652205Abstract: Laundry and cleaning compositions comprising a nonionic or anionic ester of an allylic alcohol perfume having the formula: ##STR1## especially geranyl and neryl esters.Type: GrantFiled: August 22, 1995Date of Patent: July 29, 1997Assignee: The Procter & Gamble CompanyInventors: Frederick Anthony Hartman, Mark Robert Sivik, John Cort Severns, Scott William Waite, Cynthia Lee Eddy
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Patent number: 5635103Abstract: Improved cleaning and/or bleaching compositions including fabric laundry and bleaching compositions, automatic dishwashing compositions, hard surface cleaners, bleach additives and the like, suitable for domestic use, comprising improved bleach activators having particular alpha-modified lactam leaving groups leading to improved in-use performance of bleaching agents such as perborate even under wash conditions less alkaline than those typically encountered or when hydrogen peroxide source is at low levels in a cleaning operation. A preferred class of activators are N-acyl-3-morpholinone compounds with benzoyl being a preferred acyl group and N-Benzoyl-3-oxomorpholine being a highly preferred activator.Type: GrantFiled: January 20, 1995Date of Patent: June 3, 1997Assignee: The Procter & Gamble CompanyInventors: Alan D. Willey, Kevin L. Kott, Gregory S. Miracle, Eugene P. Gosselink, James C. T. R. B. St. Laurent
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Patent number: 5597936Abstract: A method for manufacturing cobalt complexes having the formula:[Co(NH.sub.3).sub.5 M]T.sub.ywherein M ligands are selected from substituted and unsubstituted C.sub.1 -C.sub.30 carboxylic acids having the formulas:RC(O)O--;said method comprising reacting cobalt (II) complexes having the formula [Co(H.sub.2 O).sub.6 ] T.sub.y (e.g., T is chloride) with concentrated ammonium hydroxide/ammonium chloride, followed by an oxidizing agent (e.g., peroxide), followed by carboxylic acid anhydride of the formula RC(O)O(O)CR.Type: GrantFiled: July 27, 1995Date of Patent: January 28, 1997Assignee: The Procter & Gamble CompanyInventors: Christopher M. Perkins, Mark R. Sivik
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Patent number: 5584888Abstract: Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising particular neutral or anionically charged substituted bleach activators are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits through the selection of perhydrolysis-selective bleach activators having specific leaving groups with a conjugate acid pK.sub.a above 13 and with specific ratios of the rate of perhydrolysis to the rate of hydrolysis and the rate of perhydrolysis to the rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.Type: GrantFiled: August 31, 1994Date of Patent: December 17, 1996Inventors: Gregory S. Miracle, Alan D. Willey, Kevin L. Kott, Michael E. Burns
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Patent number: 5582762Abstract: Aqueous liquid detergent compositions are described which comprise a proteolytic enzyme wherein the proteolytic activity is reversibly inhibited by a peptide trifluoromethyl ketone.Type: GrantFiled: February 8, 1995Date of Patent: December 10, 1996Assignee: The Procter & Gamble CompanyInventors: Regine Labeque, John M. McIver, Christiaan A. J. K. Thoen
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Patent number: 5583122Abstract: Pharmaceutical compositions, useful for treating abnormal calcium and phosphate metabolism, which contain geminal-diphosphonic acid compounds; and a method of treating diseases characterized by abnormal calcium and phosphate metabolism utilizing these pharmaceutical compositions.Type: GrantFiled: December 6, 1985Date of Patent: December 10, 1996Assignee: The Procter & Gamble CompanyInventors: James J. Benedict, Christopher M. Perkins
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Patent number: 5581005Abstract: A method for manufacturing cobalt complexes having the formula:[Co(NH.sub.3).sub.5 M]T.sub.ywherein M ligands are selected from substituted and unsubstituted C.sub.1 -C.sub.30 carboxylic acids having the formulas:RC(O)O--;said method comprising reacting cobalt complexes having the formula [Co(NH.sub.3).sub.5 X]T.sub.y (e.g., X is chlorine) with concentrated ammonium hydroxide followed by carboxylic acid anhydride of the formula RC(O)O(O)CR.Type: GrantFiled: June 16, 1995Date of Patent: December 3, 1996Assignee: The Procter & Gamble CompanyInventor: Christopher M. Perkins
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Patent number: 5578136Abstract: Automatic dishwashing detergent compositions, comprising particular quaternary-substituted bleach activators, are provided. More specifically, the invention relates to granular automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits through the selection of quaternary-substituted bleach activators having specific features, such as caprolactam or valerolactam leaving groups and/or the ability to form particular cationic aliphatic peracid structures in solution. Preferred automatic dishwashing compositions comprise amylase enzymes. Included are preferred activator compounds and methods for washing tableware in domestic automatic dishwashing appliances using the activators.Type: GrantFiled: August 31, 1994Date of Patent: November 26, 1996Assignee: The Procter & Gamble CompanyInventors: Lucille F. Taylor, Mark R. Sivik, Alan D. Willey, James C. T. Burckett-St. Laurent, Frederick A. Hartman