Patents Represented by Attorney, Agent or Law Firm Donald E. Hasse
  • Patent number: 5980691
    Abstract: A smooth, high density tissue. The tissue has a relatively low caliper, as well as high smoothness and high density. The tissue is calendered from a multidensity, through air dried web.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: November 9, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Paul Thomas Weisman, Scott Thomas Loughran, Dean Van Phan, Paul Dennis Trokhan, Robert Stanley Ampulski
  • Patent number: 5972813
    Abstract: An impermeable papermaking belt. The papermaking belt has a back side and a sheet side. The sheet side of the papermaking belt is textured. The sheet side imparts structure, preferably differential density, to paper made on the impermeable belt. The papermaking belt may comprise photosensitive resin on the sheet side. The papermaking belt may be used in conjunction with an imprinting roll which densifies the regions of the paper coincident the knuckles of the papermaking belt. This belt is suitable for papermaking machines having or not having a Yankee drying drum.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: October 26, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Osman Polat, Ward William Ostendorf, Robert Stanley Ampulski
  • Patent number: 5972038
    Abstract: The performance of photobleaches such as the zinc phthalocyanines is enhanced by means of alkylene amino/carboxylate or alkylene amino/phosphonate chelants. Thus, sulfonated zinc phthalocyanine plus diethylenetriamine pentaacetate provide enhanced photobleaching of laundered fabrics. Detergent compositions comprising the improved photobleach systems are provided.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: October 26, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Luis Alberto Amestica, Francisco Ramon Figueroa, Jose Andres Rojo
  • Patent number: 5968892
    Abstract: Disclosed are compositions of laundry detergent bars that do not develop undesirable brittleness during storage. The disclosed compositions comprise alkyl sulfate surfactant, preferably coconut alkyl sulfate, and polyethylene glycol. The polyethylene glycol prevents the development of undesirable brittleness in such alkyl sulfate-containing laundry bars.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: October 19, 1999
    Inventor: James Peyton Hutchins
  • 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: 5942322
    Abstract: An apparatus for drying an embryonic web. The apparatus comprises a micropore medium having pores therethrough. The pores are the limiting orifice in the air flow used in the drying process. The micropore medium has a surface oriented towards and preferably contacting the web to be dried. This surface has a relatively low surface energy, and preferably a surface energy of less than 46 dynes per centimeter.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: August 24, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald Eugene Ensign, Paul Dennis Trokhan, Michael Gomer Stelljes, Jr.
  • Patent number: 5770558
    Abstract: The subject invention involves processes for making granular compositions comprising soil release polymers, the polymers comprising at least about 10% of substantially linear esters having a backbone; the esters being uncapped or end-capped on one or both ends of the backbone; the esters comprising in their backbones oxyalkyleneoxy units and hydrophobic aryldicarbonyl units; the esters having a molecular weight of from about 500 to about 20,000; the polymers if in solid state having the tendency when exposed to moisture to spontaneously rearrange from an amorphous form which is readily soluble in water to a crystalline form which is relatively insoluble in water; the process comprising the following steps:a) taking the soil release polymers, in which are dispersed from 0% to about 25% alkylaryl or alkyl sulfonate crystallization-reducing stabilizers, in molten state at a temperature of at least about 180.degree. C.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: June 23, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Benjamin Edgar Chapman, Michael Timothy Creedon
  • Patent number: 5759982
    Abstract: The subject invention involves laundry compositions comprising:(a) from about 10% to about 35%, anionic surfactant,(b) at least about 0.5% polyethylene glycol,(c) at least about 5% water, and(d) at least about 5% phosphate builder; the composition being in the form of a bar; and processes for making such bars.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: June 2, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Rodney Mahlon Wise, Ricky Beasley
  • Patent number: 5700386
    Abstract: The subject invention involves processes for making granular compositions comprising soil release polymers, the polymers comprising at least about 10% of substantially linear esters having a backbone; the esters being uncapped or end-capped on one or both ends of the backbone; the esters comprising in their backbones oxyalkyleneoxy units and hydrophobic aryldicarbonyl units; the esters having a molecular weight of from about 500 to about 20,000; the polymers if in solid state having the tendency when exposed to moisture to spontaneously rearrange from an amorphous form which is readily soluble in water to a crystalline form which is relatively insoluble in water; the process comprising the following steps:a) taking the soil release polymers, in which are dispersed from 0% to about 25% alkylaryl or alkyl sulfonate crystallization-reducing stabilizers, in molten state at a temperature of at least about 180.degree. C.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: December 23, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Benjamin Edgar Chapman, Michael Timothy Creedon
  • Patent number: 5607910
    Abstract: The present invention relates to a detergent composition comprising a gel wholly or predominantly in hexagonal liquid crystal phase, said gel comprising:(a) from about 15% to about 50% ethoxylated alkyl sulfate surfactant by weight of the gel, wherein the alkyl group of the ethoxylated alkyl sulfate surfactant has an average from about 8 to about 20 carbon atoms, and wherein the ethoxylated alkyl sulfate surfactant has an average degree of ethoxylation from about 0.5 to about 15;(b) from about 1% to about 20%, by weight of the gel, secondary sulfonate surfactant selected from the group consisting of alkylbenzene sulfonates, alkyltoluene sulfonates, paraffin sulfonates, olefin sulfonates, alpha-sulfonated fatty acid alkyl esters, and mixtures thereof;(c) optionally from 0% to about 15% other surfactants by weight of the gel;(d) from about 40% to about 80% water by weight of the gel;(e) from about 0.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: March 4, 1997
    Inventors: Alan E. Sherry, John D. Curry
  • Patent number: 5573697
    Abstract: A continuous process for producing high active, high density detergent granules consists essentially of the following steps:(a) preparing a mixture in a high-speed mixer, the mixture being prepared from components fed to the mixer consisting essentially of the following:(1) from about 15% to about 35% anionic surfactant acid selected from alkylbenzene sulfonic acid and alkyl sulfuric acid and mixtures thereof;(2) from about 5% to about 65% phosphate builder selected from polyphosphates and pyrophosphates and mixtures thereof; and(3) from about 10% to about 65% particulate carbonate selected from sodium carbonate and potassium carbonate and mixtures thereof, the amount of carbonate being at least about 2 times the amount theoretically needed to neutralize the anionic surfactant acid;(b) agglomerating the mixture from step (a) in a moderate-speed mixer; whereby the anionic surfactant acid is neutralized by the carbonate, and the resulting detergent granules have a bulk density of greater than about 550 g/l and
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: November 12, 1996
    Inventors: Eric F. Riddick, Judith A. Lakes
  • Patent number: 5527489
    Abstract: A process for preparing a high-density granular detergent product by dry neutralizing alkylbenzene sulfonic acid with a particulate mixture of a water-soluble alkaline inorganic material, for example, sodium carbonate, and a hydratable inorganic detergent builder in an apparatus which provides both mixing and shearing of the particulate mixture, e.g. a V-Blender, thereby forming the granular detergent product. The process includes the addition of particles of pH sensitive detergent surfactant, such as alkyl sulfate, into the particulate mixture prior to the addition of the alkylbenzene sulfonic acid. The high-density product has good product homogeneity and surfactant solubility, and essentially no reversion of the alkyl sulfate to the corresponding fatty alcohol due to acid-catalyzed hydrolysis. Other pH sensitive detergent surfactants include alpha-sulfonated fatty acid alkyl ester and polyhydroxy fatty acid amides.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: June 18, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Richard L. Tadsen, Gary W. Bufler
  • Patent number: 5486297
    Abstract: The present invention relates to a method for reducing dye fading of a fabric comprising depositing on the fabric a soil release agent capable of substantially absorbing ultraviolet and/or visible light (in the 200-700 nanometer wavelength range). The soil release agent is preferably deposited on the fabric during a laundering or drying operation. Preferably the weight ratio of soil release agent to fabric is between about 1:10,000 and about 1:100. The soil release agent has light-absorbing chemical structure groups which can include carbonyls, carboxylates, conjugated double bonds, and/or aromatic rings. Suitable soil release agents for use in the invention include oliogomeric, substantially linear, sulfonated poly-ethoxy/propoxy end-capped esters, which comprise oxyethyleneoxy units and terephthaloyl units.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: January 23, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Edgar M. Marin-Carrillo, Luis A. Amestica, Francisco R. Figueroa, Ana M. Ramirez-Semeco
  • Patent number: 5482642
    Abstract: Detergent compositions containing sodium percarbonate bleach are provided in which at least 60% of the originally added percarbonate 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 content of Iron, Manganese and Copper less than 25 ppm, an Equilibrium Relative Humidity at 32.degree. C. of less than 30% and preferably a sodium sulfate content of less than 2.5% by weight.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: January 9, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Joseph T. H. Agar, David E. Holt
  • Patent number: 5431848
    Abstract: Stable liquid bleach compositions containing amidoperoxyacid bleach particles, C.sub.11 -C.sub.13 linear alkylbenzene sulfonic acid, cumeme, toluene or xylene sulfonate, magnesium sulfate, sodium or potassium sulfate, and water combined at certain levels and ratios. The compositions have a pH of from about 3.5 to about 5 and a viscosity of from about 10 to about 1000 cps at 20.degree. C.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: July 11, 1995
    Assignee: The Procter & Gamble Company
    Inventor: Edward E. Getty
  • Patent number: 5338476
    Abstract: Granular detergent compositions containing admixed sodium carbonate and low levels of admixed citric acid to improve solubility. The compositions preferably contain aluminosilicate detergent builders and preferably are free of phosphate builders. Also disclosed are processes for improving solubility of granular detergent compositions.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: August 16, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Eugene J. Pancheri, Meleksima Koc
  • Patent number: 5320783
    Abstract: A detergent composition comprising a gel wholly or predominantly in hexagonal liquid crystal form comprising: (a) 15% to 70% surfactant system, wherein at least 40% by weight of the surfactant system is an ethoxylated alkyl sulfate surfactant, wherein the alkyl group of the ethoxylated alkyl sulfate surfactant has an average of from 8 to 20 carbon atoms, and wherein the ethoxylated alkyl sulfate surfactant has an average degree of ethoxylation of from 0.5 to 15; (b) 1% to 45% additive which is a water-soluble non-micelle-forming or weakly micelle-forming material capable of forcing the surfactant system into hexagonal phase, the additive being anionic or nonionic and having at most 6 aliphatic carbon atoms, and the additive being selected from the lower amides or mixtures thereof; and (c) 20% to 70% water. The detergent gel has excellent viscosity, overall consistency, foaming, stability and appearance, and provides good cleaning ability. Dishcare gels are preferred.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: June 14, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Edgar M. Marin, Alan E. Sherry, Kyle D. Jones
  • Patent number: 5300250
    Abstract: Granular laundry detergent, bleach or additive compositions containing admixed sodium carbonate and low levels of admixed hydrophobic amorphous silicate material to improve solubility. The compositions preferably contain aluminosilicate detergent builders and preferably are free of phosphate builders. Also disclosed are processes for improving solubility of such granular laundry compositions.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: April 5, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Ronald D. Morgan, Gary R. Cutter
  • Patent number: 5298636
    Abstract: Polyhydroxy amines reacted with fatty acid esters yield polyhydroxy fatty acid amide surfactants, such as the C.sub.11 -C.sub.17 fatty N-methyl glucamides, which may be contaminated with secondary amines. Such amines are acylated by a reaction with acetic anhydride. The resulting "clean" polyhydroxy fatty acid amide surfactants are preferred for use in the presence of oxidants, especially in the formulation of modern, colorless liquid detergents.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: March 29, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Daniel S. Connor, Mark Hsiang-Kuen Mao
  • Patent number: 5256168
    Abstract: Anionic, sulfobenzoyl end-capped esters useful as soil release agents in granular detergent compositions. The terephthalate esters contain oxyethyleneoxy and oxy-1,2-propyleneoxy units, and are substantially amorphous in form.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: October 26, 1993
    Assignee: The Procter & Gamble Company
    Inventors: Stephen W. Morrall, Eugene P. Gosselink, Robert Y. Pan, Bala C. Nayar