Patents Represented by Attorney Jerry J. Yetter
  • Patent number: 5516449
    Abstract: Detergent compositions containing amide substituted peroxyacid bleaching compounds are provided in which at least 60% of the originally added peronacid bleach remains after 28 days storage at 32.degree. C. and 80.degree. RH. The compositions contain at least one multi-ingredient component and have a density in excess of 650 g/liter, a total Iron, Manganese and Copper content of less than 40 ppm, an Equilibrium Relative Humidity at 32.degree. C. of less than 30% and preferably a sodium sulphate content of less than 2.5 % by weight.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: May 14, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Joseph T. H. Agar, Richard T. Hartshorn, Graham A. Sorrie
  • Patent number: 5512699
    Abstract: Poly polyhydroxy fatty acid amide compounds and laundry, cleaning, fabric and personal care compositions comprising these compounds.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: April 30, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Daniel S. Connor, Yi-Chang Fu, Jeffrey J. Scheibel
  • Patent number: 5510049
    Abstract: Laundry or toilet bars comprising one or more surface active agents such as soaps or synthetic detergents are prepared using an alkoxy or aryloxy polyhydroxy fatty acid amide to improve bar smear, cracking or wearing qualities, Palm oil chain-length fatty acid amides of N-(3-methoxypropyl) glucamine and N-(2-methoxyethyl) glucamine are examples of the glucamide surfactant used in such bars.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: April 23, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Daniel S. Connor, Yi-Chang Fu, Jeffrey J. Scheibel
  • Patent number: 5508455
    Abstract: The present invention relates to an improved process for preparing fatty acids from alkyl, preferably methyl esters via acid hydrolysis by using ratios of water/ester/acid catalyst to form single phase reaction mixtures wherein the initial stoichiometric ratio of water to ester is at least about 1:1. These ratios are represented by the ternary phase diagram of FIG. 1 for a preferred C.sub.6 -C.sub.14 alkylbenzene sulfonic acid catalyst having mid-point attachment of the alkyl chain to the benzene ring.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: April 16, 1996
    Assignee: The Procter & Gamble Company
    Inventor: Michael S. Gibson
  • Patent number: 5505866
    Abstract: Improved solid particulate, granular fabric softening compositions contain biodegradable cationic ester fabric softener actives, especially quaternary ammonium softeners containing two long hydrophobic chains interrupted by ester linkages, and acidic pH modifier, in an effective amount to provide a pH, when the particulate compositions are diluted with water to make liquid softener compositions, of from about 2 to about 5. The solid particulate, granular fabric softening compositions, when added to water, form chemically stable dilute, or concentrated liquid, softener compositions.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: April 9, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Dennis R. Bacon, Toan Trinh
  • Patent number: 5503756
    Abstract: The present invention relates to dryer-activated fabric softening compositions and articles, having improved antistatic and/or softening effects, for use in an automatic clothes dryer, especially those comprising, as essential ingredients: (A) fabric softener consisting essentially of: (1) from about 5% to about 95% of preferably biodegradable quaternary ammonium compound selected from the group consisting of the compounds of Formulas I, II, III, and mixtures thereof; (2) from 0% to about 95% highly ethoxylated and/or propoxylated, preferably at least 5 ethylene oxide (EO) and/or propylene oxide (PO) groups per molecule, sugar derivative containing at least one long hydrophobic moiety per molecule; and (3) from 0% to about 95% of carboxylic acid salt of tertiary amine; and (B) from about 1% to about 15%, unsaturated fatty acid having an IV of from about 3 to about 60.The amount of (A) present is at least sufficient to provide softening and/or antistatic effects.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: April 2, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Alessandro Corona, III, Clyde D. Palmer, John R. Rusche, Stephanie L. Sung
  • Patent number: 5500150
    Abstract: Ethoxylated nonionic or AES surfactants are combined with N-alkoxy or N-aryloxy polyhydroxy fatty acid amides to provide a waxy, solid material which is useful as a stick-form spot remover or as a convenient means for adding otherwise liquid nonionic surfactants to granular detergent compositions, detergent bars and the like. Thus, C.sub.12 -C.sub.18 alcohol ethoxylates or C.sub.12-18 ethoxy sulfates are combined with C.sub.12 fatty acid N-(3-methoxypropyl)glucamide to provide solid, waxy materials useful for cleaning purposes.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: March 19, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey J. Scheibel, Bruce P. Murch, Daniel S. Connor
  • Patent number: 5500143
    Abstract: Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Clear liquid formulations comprising oleate and polyethylene glycol are applied to apples, lettuce and the like to remove soil and unwanted deposits. The compositions are characterized by their "non-soapy" feel and desirable viscosity profile which allows spray-on compositions to be formulated.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: March 19, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Bruce P. Murch, Brian J. Roselle, Kyle D. Jones
  • Patent number: 5500153
    Abstract: The invention is directed to a handwashing laundry detergent composition containing a surfactant system including selected levels of an anionic surfactant and a nonionic surfactant mixture of polyhydroxy fatty acid amide surfactant and an amine oxide surfactant in a selected weight ratio. By judiciously selecting the surfactant system components and their respective levels and proportions as contained herein, the detergent composition surprisingly exhibits superior cleaning, sudsing and mildness during conventional hand washing operations. The inclusion of other adjunct detergent ingredients such as builders and other optional components enhance the unexpected superior cleaning, sudsing and mildness results achieved by the handwashing detergent product.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: March 19, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Francisco R. Figueroa, Roberto M. Jarrin
  • Patent number: 5500048
    Abstract: Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Clear liquid formulations comprising oleate, alcohol ethoxylates and buffers are sprayed onto apples, lettuce and the like to remove soil and unwanted deposits.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: March 19, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Bruce P. Murch, Brian J. Roselle, Kyle D. Jones
  • Patent number: 5498373
    Abstract: Amine oxide surfactants contaminated with nitrite are treated under acidic conditions with materials such as maleic acid and diethylenetriaminepentaacetate (DTPA) to reduce nitrite levels below 1 ppm. Thus, C.sub.12-13 dimethyl amine is oxidized with hydrogen peroxide in the presence of maleic acid and DTPA to reduce nitrite levels. The resulting nitrite-free amine oxide is employed in various detergent compositions.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 12, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Larry E. Miller, Gene P. Hawkins, Bernard G. Durham
  • Patent number: 5498295
    Abstract: Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Clear liquid formulations comprising oleate, alcohol ethoxylates and buffers are sprayed onto apples, lettuce and the like to remove soil and unwanted deposits.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: March 12, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Bruce P. Murch, Brian J. Roselle, Kyle D. Jones
  • Patent number: 5496487
    Abstract: The present invention provides a process which produces high density detergent compositions especially suitable for commercialization as a compact detergent product. The process can be easily retrofitted into existing spray drying detergent-making production plants in that it utilizes existing equipment so as to economize the transition from "tower" based to "non-tower" based detergent manufacturing plants. The process comprises the steps of: (a) agglomerating starting detergent ingredients in a mixer/densifier such that detergent agglomerates having a density of at least 650 g/l are formed; (b) conditioning the agglomerates in a spray-drying tower so as to enhance the free flowability of the detergent agglomerates: and (c) admixing adjunct detergent ingredients in the detergent agglomerates, thereby producing the high density granular detergent composition.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: March 5, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Scott W. Capeci, David R. Nassano, Robert G. Welch
  • Patent number: 5494599
    Abstract: A process for making a free-flowing granular detergent contemplates mixing an aqueous surfactant paste that has a detergency activity of at least 40% with a dry detergency powder to form a mix, rapidly forming a uniform mixture at a temperature of from about 20.degree. C. to about 80.degree. C., and then granulating the mixture into discrete detergent granules by a high-speed mixing. Surfactant pastes used in the present invention contain at least one anionic surfactant and the mixing and granulating steps of the process occur either simultaneously or immediately sequentially.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: February 27, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Lucas Goovaerts, Jose L. Vega
  • Patent number: 5494600
    Abstract: The present invention provides a detergent additive comprising a water-soluble or water-dispersible detergent active compound such as enzyme characterized in that said compound is mixed with a surfactant before absorption into a porous hydrophobic material such as silica, said porous material subsequently being coated with a hydrophobic material such as silicone oil. Detergent compositions containing said additive are also encompassed.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: February 27, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Athanasios Surutzidis, Roger J. Jones
  • Patent number: 5489392
    Abstract: A process for continuously preparing high density detergent composition is provided. The process comprises the steps of: (a) continuously charging a detergent surfactant paste and dry starting detergent material into a mixer/densifier for densification and build-up to obtain agglomerates; (b) feeding the agglomerates into a conditioning apparatus for improving the flow properties of the agglomerates and for separating the agglomerates into a first agglomerate mixture and a second agglomerate mixture; (d) recycling the first agglomerate mixture into the mixer/densifier for further agglomeration; (e) admixing adjunct detergent ingredients to the second agglomerate mixture so as to form the high density detergent composition.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: February 6, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Scott W. Capeci, John F. Lange, David J. Smith, Nigel S. Roberts
  • Patent number: 5489393
    Abstract: High sudsing detergent compositions comprising N-alkoxy polyhydroxy fatty acid amides are provided by the addition of secondary carboxylate surfactants. Thus, cocofatty acid N-(3-methoxypropyl) glucamide is used in liquid, granular or bar compositions in combination with conventional detergent ingredients and secondary fatty acids such as 2-methyl undecanoic acid. The compositions exhibit high, relatively persistent suds and high emulsifying and cleaning properties, especially with respect to greasy soils of the type commonly found on eating utensils and in food stains on fabrics.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: February 6, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Daniel S. Connor, Jeffrey J. Scheibel, Yi-Chang Fu
  • Patent number: 5487884
    Abstract: The present invention involves photoprotective compositions which are useful for topical application to prevent damage to skin caused by acute or chronic exposure to ultraviolet light comprising chelating agents. Also involved are compositions comprising chelating agents together with anti-inflammatory agents, sunscreening agents, and/or radical scavenging agents. Methods for using such compositions to prevent damage to skin caused by acute or chronic exposure to ultraviolet light are also involved.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: January 30, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Donald L. Bissett, Rodney D. Bush, Ranjit Chatterjee
  • Patent number: 5486317
    Abstract: A process for making a detergent particle comprises neutralization of the acid form of an anionic surfactant in a high shear mixer by a stoichiometric excess of finely divided particulate neutralizing agent having an average particle size of less than 5 .mu.m. A free-flowing detergent composition is made with the process.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: January 23, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Andrew Dorset, Olivier Paquatte
  • Patent number: 5486303
    Abstract: A process for preparing high density detergent agglomerates having a density of at least 650 g/l is provided. The process comprises the steps of: (a) charging a viscous surfactant paste into a mixer/densifier wherein the surfactant paste has a viscosity of from about 5,000 cps to about 100,000 cps and contains at least about 5% water; (b) adding from about 1% to about 70% of an anhydrous material into the surfactant paste just prior to entrance into the mixer/densifier to absorb at least a minor amount of the water from the surfactant paste; and (c) agglomerating the surfactant paste and the anhydrous material in the mixer/densifier so as to form detergent agglomerates having a density of at least about 650 g/l. The detergent agglomerates have high surfactant levels.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: January 23, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Scott W. Capeci, James W. Osborn, Adrian J. W. Angell, Paul van Dijk