Patents Examined by Dennis L. Albrecht
  • Patent number: 4435310
    Abstract: Striped detergent bars can be manufactured by several methods. The application of torque to a striped extruded log provides a bar with a spiral striping. The present invention proposes reversal of torque so that a sinusoidal striping is present on the bar.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: March 6, 1984
    Assignee: Lever Brothers Company
    Inventor: Michael R. Lowry
  • Patent number: 4435223
    Abstract: Compositions and methods for cleaning aluminum surfaces wherein the cleaning compositions contain sulfuric acid, phosphoric acid, and at least one surfactant.
    Type: Grant
    Filed: May 18, 1982
    Date of Patent: March 6, 1984
    Assignee: Amchem Products, Inc.
    Inventor: David Y. Dollman
  • Patent number: 4430416
    Abstract: A transfer element for sandblast carving comprising, in order, a flexible substrate, an intermediate resin layer which is strippable from the flexible substrate and is a pressure-sensitive adhesive to an etchable material, and a resist comprising a photocured photosensitive resin.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: February 7, 1984
    Assignees: Asahi Kasei Kogyo Kabushiki Kaisha, Akebono Process Co. Ltd., Sango Toki Co., Ltd.
    Inventors: Hiraku Goto, Tsuneaki Usui, Nobuyasu Kinoshita
  • Patent number: 4430243
    Abstract: Laundry bleaching and detergent compositions comprising a peroxygen bleaching agent and a catalyst system therefor, the catalyst system comprising a heavy metal cation of defined bleach catalytic activity, particularly copper, iron or manganese cations, an auxiliary metal cation having little or no bleach catalytic activity, particularly zinc or aluminium cations, and a sequestrant having defined stability constants for the catalytic and auxiliary metal cations, particularly ethylenediaminetetraacetic acid, ethylenediaminetetra(methylenephosphonic acid) and water-soluble salts thereof. The laundry bleaching and detergent compositions deliver improved bleach performance, particularly at medium to high wash temperatures. Catalyst compositions for peroxygen bleaching agents are also disclosed.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: February 7, 1984
    Assignee: The Procter & Gamble Company
    Inventor: Charles D. Bragg
  • Patent number: 4430237
    Abstract: A detergent composition consisting essentially of a water soluble mixture of higher alkyl glyceryl ether nonionic surfactants having the structural formula ##STR1## where R is a C.sub.8 -C.sub.16 alkyl radical, and n has a value of 1, 2 and 3, with an n distribution of 12-49% n=1 ethers, 24-61% n=2 ethers and 6-59% n=3 ethers.
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: February 7, 1984
    Assignee: Colgate-Palmolive Co.
    Inventors: Robert C. Pierce, Frank J. Bala, Jr.
  • Patent number: 4430246
    Abstract: The invention provides a granulate comprising particles having sizes substantially within the range 0.15 to 1.25 mm, the granulate consisting of:(a) about 1 to 99 weight % of partially or completely hydrated sodium tripolyphosphate containing water of hydration in a proportion of at least about 10 weight %, based on the theoretically possible water content, the anhydrous sodium tripolyphosphate containing about 20 to 90 weight % of phase-I-material prior to its being hydrated, the balance being phase-II, and(b) about 99 to 1 weight % of a water-insoluble alumino silicate ion exchanger material of the general formula(Cat.sub.2/n O).sub.x.Me.sub.2 O.sub.3.(SiO.sub.2).sub.y.zH.sub.2 Oin which Cat stands for a calcium exchangeable cation with the valency n, x is 0.7 to 1.5, Me stands for boron or aluminum, y is 0.8 to 6, and z is 1.8 to 13.5.The invention also includes a spray process for making a granulate as just specified.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: February 7, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunter Sorbe, Horst-Dieter Wasel-Nielen, Joachim Kandler
  • Patent number: 4428872
    Abstract: Composition to inhibit the staining of water-contacting surfaces, such as those in a toilet bowl, which is caused by manganese present in household water in the presence of an oxidizing material. Manganese staining is inhibited by supplying to the water 0.1 to 10 ppm of a substance selected from sodium polyacrylates and ethylene-maleic anhydride copolymers.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: January 31, 1984
    Assignee: The Procter & Gamble Company
    Inventor: Robert H. Callicott
  • Patent number: 4428749
    Abstract: A process for washing fabrics includes contacting the fabrics with a liquor containing an orthophosphate material and, at least one minute thereafter, contacting the fabrics with a liquor containing a pyrophosphate material free of polymer phosphate. Each liquor contains a detergent active material and has a pH between about 8 and about 12. The delayed contact with the pyrophosphate reduces the level of deposition on the fabrics and the use of a combination of orthophophate and pyrophosphate enables compositions for use in the process to contain lower than conventional total levels of phosphorus. The pyrophosphate containing liquor may be separate from the orthophosphate containing liquor, or it may be the same liquor to which the pyrophosphate is added with a suitable delay.
    Type: Grant
    Filed: January 12, 1982
    Date of Patent: January 31, 1984
    Assignee: Lever Brothers Company
    Inventor: Ronald M. Morris
  • Patent number: 4427567
    Abstract: Poorly flowing or caked detergent powders which include synthetic organic detergent, inorganic salt and moisture (with at least some of the moisture hydrating the salt) are reconditioned by mixing therewith a small proportion of hydratable molecular sieve zeolite, preferably of an initial moisture content of less than 3%. The reconditioned powders are free flowing, non-tacky and non-caking and the compositions resulting, rather than being less effective, have additional water softening and building properties due to the presence of the molecular sieve zeolite. Preferably, the molecular sieve zeolite employed is anhydrous and of type 4A and the detergent composition is a heavy duty non-phosphate product.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: January 24, 1984
    Assignee: Colgate-Palmolive Company
    Inventor: Claude L. Benz
  • Patent number: 4427410
    Abstract: A wash cycle fabric softening composition contains a water soluble organic cationic fabric softening agent and a water insoluble molecular sieve zeolite, usually in a weight ratio of 1:1 to 1:20. The composition effectively softens fabrics, reduces or eliminates static cling and is compatible with organic detergents, providing an excellent building effect, in detergent-softener combinations, even with wash waters of high calcium hardnesses and has good, low residue deposition characteristics. The composition may also contain a water soluble organic detergent and/or a bleaching agent.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: January 24, 1984
    Assignee: Colgate-Palmolive Company
    Inventors: William Chirash, Harold E. Wixon
  • Patent number: 4421663
    Abstract: A composition of matter particularly suitable for heat absorption and exchange comprising a mixture of soft commercial asphalt, oil, a finely ground heat-conductive material of high specific gravity in suspension and, in preferred embodiments, finely ground rock salt in suspension. Mineral oil is preferred as the oil. However, vegetable oil or other low-molecular-weight polymeric oils are suitable. Iron, barite, and galena of a fineness of at least 325 mesh exemplify suitable material.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: December 20, 1983
    Inventors: Louie G. Embree, Wayne W. Embree
  • Patent number: 4421665
    Abstract: A composition for cleaning lenses which includes a non-polar solvent in the form of cyclohexane and/or ethyl acetate with a trace amount of an organic solvent in the form of chloroform or ethyl acetate and a polar solvent in the form of an alcohol. The composition further includes thimerosal, a wetting agent, a surfactant, and a buffer. The composition is provided as a saline solution.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: December 20, 1983
    Inventors: Eugene A. Lloyd, Peter Madri, William J. Closson
  • Patent number: 4421657
    Abstract: A heavy duty laundering and textile softening detergent composition, in particulate form, useful for automatic machine washing of laundry in water, especially hot water, and readily dispensable from a charging compartment of an automatic washing machine (by action of water being fed through such compartment) includes a synthetic organic detergent, a builder for such detergent and a laundry softening proportion of bentonite, with which there is present a dispensing assisting proportion of a siliconate or similarly functioning derivative of such siliconate. In addition to tending to inhibit firm adherence to the charging compartment walls of the bentonite, which is advantageously in separately agglomerated bead form, and promoting release thereof from such walls, the siliconate also aids in controlling the foaming activity of the built synthetic organic detergent and strengthening the bentonite agglomerates.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: December 20, 1983
    Assignee: Colgate-Palmolive Company
    Inventors: Edwin Allen, Alan Dillarstone, Joseph A. Reul
  • Patent number: 4421661
    Abstract: A high-temperature direct-contact thermal energy storage element for use in a system for storage and retrieval of thermal energy in the range of about 400.degree. to about 2000.degree. F. The thermal energy is directly stored, without heat exchange tubes in composite latent/sensible heat thermal energy storage media utilizing the heat of fusion and high-temperature stability of alkaline metal and alkaline earth carbonates, chlorides, nitrates, nitrites, fluorides, hydroxides, sulfates, and mixtures thereof maintained within a porous support-structure material which itself is capable of storage as sensible heat. The thermal energy storage according to the invention may be effectively utilized for storage of thermal energy derived from solar, industrial waste, process heat, and high-temperature gas reactor energy sources and retrieved for a wide variety of uses such as combustion air preheating, drying, space heating, heating of process gases, and the like.
    Type: Grant
    Filed: June 19, 1981
    Date of Patent: December 20, 1983
    Assignee: Institute of Gas Technology
    Inventors: Terry D. Claar, Randy J. Petri
  • Patent number: 4421654
    Abstract: What is disclosed is the preparation of novel silanes, their reaction products on various substrates and the use of the treated substrates to extract metal ions from solution.
    Type: Grant
    Filed: July 15, 1982
    Date of Patent: December 20, 1983
    Assignee: Dow Corning Corporation
    Inventor: Edwin P. Plueddemann
  • Patent number: 4419250
    Abstract: A heavy duty laundering and textile softening detergent composition, in particulate form, useful for automatic machine washing of laundry in water, especially hot water, and readily dispensable from a charging compartment of an automatic washing machine (by action of water being fed through such compartment) includes a synthetic organic detergent, a builder for such detergent and a laundry softening proportion of bentonite, with which there is present a dispensing assisting proportion, at least 0.15%, of a siliconate or similarly functioning derivative of such siliconate. In addition to inhibiting adherence to the charging compartment walls of the bentonite, which is advantageously in separately agglomerated bead form, and promoting release thereof from such walls, the siliconate also aids in controlling the foaming activity of the built synthetic organic detergent and strengthening the bentonite agglomerates.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: December 6, 1983
    Assignee: Colgate-Palmolive Company
    Inventors: Edwin Allen, Alan Dillarstone, Joseph A. Reul
  • Patent number: 4417993
    Abstract: The present invention is directed to an effervescent tablet for cleansing dental prostheses comprising an acidic component and an alkaline component, wherein one of said two components dissolves more slowly than the other component, with the more slowly dissolving component present in stoichiometric excess within the tablet, so that an initial acidic or alkaline pH is provided within the cleansing solution, with the pH gradually adjusting to the opposite alkaline or acidic region as the tablet effervesces.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: November 29, 1983
    Inventor: Gerhard Gergely
  • Patent number: 4417996
    Abstract: Aqueous basic polyaluminum-iron halide solutions, useful as coagulants in waste water treatment are disclosed. The polyaluminum-iron halide solution is prepared by reacting an aqueous polyaluminum halide solution with one or more members of the group consisting of ferrous halide and ferric halide resulting in a solution containing a concentration of metal ions ranging from about 1.35 to 4.5 mol/liter as a dissolved salt of the formulaAl.sub.1-x Fe.sub.x.sup.III Fe.sub.y.sup.II (OH).sub.3+2y-z Hal.sub.zwherein Hal is chlorine, bromine, iodine or mixtures thereof; (x+y)(1-x) is about 0.2 to 1.5; (3+2y-z)(3+2y) is about 0.24 to 0.67; and z is less than 3+2y wherein x/y is about 0 to 1. Alternatively, the coagulant solution is prepared by reacting an aqueous aluminum halide solution or low basic polyaluminum halide solution with iron. Preferably the halide employed is chloride.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: November 29, 1983
    Assignee: Allied Corporation
    Inventors: Vincent H. S. Kuo, Christian A. Wamser
  • Patent number: 4416811
    Abstract: Heavy duty detergent compositions, particularly for imparting improved softness and detersive effects to fabrics laundered therewith, said composition including in addition to conventional builder and principally anionic surfactant components, fatty acid soap, and cationic softener of the di-lower-di-higher alkyl quaternary ammonium and/or hetrocyclic imide type, e.g., imidazolinium, the weight ratio of soap to softener being about 8:1 to 1:3 preferably 5:1 to 1:2, more preferably 3:2:2:3, e.g. about unity. The soap in the form of a spaghetti, flake, or other shape and is present in the product composition as substantially homogeneously dispersed, discrete particles.
    Type: Grant
    Filed: July 31, 1981
    Date of Patent: November 22, 1983
    Assignee: Colgate-Palmolive Company
    Inventor: Harold E. Wixon
  • Patent number: 4416792
    Abstract: This invention relates to a detergent composition and a method for substantially eliminating separation of nonionic from a detergent slurry. The composition consists essentially of: (a) about 10%-60% builder; (b) about 2%-25% nonionic surfactant; (c) 0% to about 30% other ingredients; (d) an effective amount to substantially prevent separation of the nonionic from the detergent composition of a surface active iminodipropionate of the general formula: ##STR1## wherein R is an alkyl, hydroxyalkyl or oxyalkyl group containing from about 10 to about 18 carbon atoms and M is an alkali metal cation; and (e) the remainder water.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: November 22, 1983
    Assignee: Lever Brothers Company
    Inventor: Paul C. Blackstone