Patents Represented by Attorney, Agent or Law Firm Wayne C. Jaeschke
  • Circuitry for the electrolytic coloring of anodized aluminum surfaces
    Patent number: 4992155
    Abstract: A process and circuitry for the electrolytic coloring of an anodized article of aluminum or aluminum alloy in a coloring bath containing at least one metal salt for coloring the article. The process comprises applying to the coloring bath a controllable, asymmetrical and substantially sinusoidal a.c. voltage of substantially constant frequency. The sinusoidal a.c. voltage is obtained from a voltage source supplying a symmetrical sinusoidal a.c. voltage and at least one of the two current paths is divided into two parallel main lines and fed to electrical components whereby the amplitude level of the positive half wave and the amplitude level of the negative half wave and the ratio of the amplitude level of the positive half wave to the amplitude level of the negative half wave of the a.c.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: February 12, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Dieter Brodalla, Werner Huppertz, Georg Wagner, James W. Costello, Karl-Heinz Munk
  • Aqueous dispersions of polyamides emulsified with rosin derivatives
    Patent number: 4992500
    Abstract: Aqueous dispersions of thermoplastic polyamides based on dimeric fatty acids having melting points of at least 120.degree. C. or of mixtures of these thermoplastic polyamides, in which at least 20% of the polyamide has a melting point of at least 120.degree. C., and which contain salts of rosin derivatives having acid values of more than 120 as emulsifiers, show excellent properties as adhesives.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: February 12, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Klauck, Gerhard Gierenz, Juergen Wichelhaus
  • Recovery of precious metals
    Patent number: 4992200
    Abstract: Recovery of precious metals such as gold and silver from aqueous cyanide solutions thereof, by contact with a reagent containing a guanidine functionality. The guanidine reagent extracts the precious metal from the aqueous solution which is subsequentily stripped from the guanidine reagent and recovered by conventional methods. Certain novel guanidine compounds suitable for extracting gold and silver are disclosed.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: February 12, 1991
    Assignee: Henkel Corporation
    Inventors: Wilson L. Lin, Phillip L. Mattison, Michael J. Virnig
  • Method and composition for coating aluminum
    Patent number: 4992116
    Abstract: The invention is a composition and method for treating aluminum. The composition comprises phosphonic acid, fluorozirconic acid, fluorotitanic acid, fluorohafnic acid, or fluorosilicic acid and a Mannich adduct of an polyalkenyl phenol or tannin. The aluminum is treated by contact with the composition. An inorganic-organic conversion coating is applied to the aluminum in a single step.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: February 12, 1991
    Assignee: Henkel Corporation
    Inventor: Lydia Hallman
  • Control of disalt in .alpha.-sulfofatty acid ester surfactants
    Patent number: 4990288
    Abstract: In light colored surfactants produced by sulfonation of fatty acid alkyl esters with less than 2 moles of SO.sub.3 per mole of fatty acid alkyl ester and subsequent work-up of the crude sulfonate in aqueous medium to form salts, the content of .alpha.-sulfofatty acid disalts is regulated and reduced by transesterifying the sulfonation product before its treatment with an aqueous medium with at least about 0.5 mole equivalent of an alcohol, based on the SO.sub.3 which is not for .alpha.-sulfonation.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: February 5, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Robert Piorr, Guenter Panthel, Karl H. Schmid, Dietmar Colignon, Hans J. Rommerskirchen, Wolfgang Schmidt, Horst Ritterbex
  • Dual chamber aerosol container
    Patent number: 4988017
    Abstract: This invention is directed to an aerosol container system with two separate chambers, each of which contains a component to be mixed with the other component just prior to use.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: January 29, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Dieter Schrader, Karl Giede, Hans Schneider, Dietholf Mehl
  • Removal of water miscible materials from glycoside mixtures
    Patent number: 4987225
    Abstract: Undesired hydrophilic materials are readily removed from long chain hydrophobic alcohols, from long chain hydrophobic alcohol/glycoside surfactant mixtures and from solutions of glycoside surfactants in water immiscible solvents resulting from dissolving the glycoside surfactants in said solvents or mixing aqueous mixtures of glycoside surfactants with said solvents, by contacting the hydrophilic material containing hydrophobic composition with water in an amount, and for a time period sufficient, to extract at least a portion of the hydrophilic material from the hydrophobic composition and to form a separate aqueous phase and by separating the resulting aqueous phase from the hydrophobic composition.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: January 22, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Carl Pickens, Patrick M. McCurry
  • Treating zinciferous metal surfaces to blacken them
    Patent number: 4985087
    Abstract: Zinc and zinc alloy surfaces can be given an effective corrosion inhibiting treatment by contact for less than a minute with an alkaline aqueous solution having a pH not more than 11 and containing at least 0.020 g/L of dissolved nickel ions and sufficient ammonia to give a molar ratio of ammonia to nickel ion of at least 6. If the concentration of nickel ions in the treating solution is at least 1.0 g/L, a durable blackening of the surface is also produced. Both the corrosion resistance and the quality of the blackening can usually be further improved by subsequent conventional phosphate conversion coating.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: January 15, 1991
    Assignee: Nihon Parkerizing Co., Ltd.
    Inventors: Kazuhiko Mori, Hitoshi Ishii, Toshi Miyawaki
  • Continuous bookbinding process using a moisture curable polyurethane adhesive
    Patent number: 4984949
    Abstract: A process for book binding in which a block of pages, one of whose sides constitutes a book spine, is adhered to a book cover through the applicaiton of a polyurethane hot melt adhesive to the book cover and not to the spine, together with parallel side strips of adhesive.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: January 15, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Erich Reckziegel
  • Cold deformation process employing improved lubrication coating
    Patent number: 4983229
    Abstract: In the practice of the instant invention, a lubricating phosphate coating is applied to the surface of a ferrous-base metal article by contacting the surface with an aqueous acidic phosphate coating solution which contains an amount of hydroxylamine which is effective in increasing the rate at which the phosphate coating deposits from the solution. The resulting coated article is then subjected to cold deformation.In a preferred embodiment, the metal article is additionally contacted with a second lubricating compound after the phosphate coating is applied. In addition to phosphate the coating solutions employed preferably contain one or more of the following ions: zinc, manganese, nitrate, nickel, ferrous, ferric, copper, fluoride, or mixtures thereof.
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: January 8, 1991
    Assignee: Henkel Corporation
    Inventor: Thomas W. Tull
  • Alkoxylation process using a catalyst composition containing esters of titanic acid and zirconic acid
    Patent number: 4983778
    Abstract: Alkoxylation products of organic compounds containing active H atoms with a narrow homolog distribution range is produced by using as a catalyst in the alkoxylation process a catalyst composition comprising:a. Esters of titanic and/or zirconic acid with monoalkanols containing 1 to 4 carbon atoms in combination with,b. sulfuric acid and/or alkanesulfonic acid containing 1 to 6 carbon atoms and/or hydroxyarylsulfonic acids as catalysts for the ethoxylation or propoxylation of compounds containing active H atoms provide the alkoxylation products with a narrow homolog distribution range.
    Type: Grant
    Filed: May 2, 1989
    Date of Patent: January 8, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Uwe Ploog
  • Appliance for the treatment of textile floor coverings
    Patent number: 4983060
    Abstract: A manually operated appliance for the treatment of textile floor coverings with a foaming cleaning liquid, comprising a shaft-like handle with a bristled cleaning element attached thereto, a container for cleaning liquid replaceably mounted on the handle by means of a holding element, and a hose for connecting the container and cleaning element which is operatively connected to a dosing mechanism regulating the outflow of cleaning liquid from the container. The hose has a grooved internal profile and the cleaning element is a hollow brush having an inlet nozzle on its top surface for the hose level with a socket for fixing the handle. Outlet holes face the floor between rows of bristles arranged at the outer edges of the hollow brush, and a distributor plate covers the brush surface.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: January 8, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Gerhard Steinbach
  • Foam inhibitors for polymer dispersions
    Patent number: 4981893
    Abstract: Compounds corresponding to the following formulaR.sub.1 --(CH.sub.2).sub.m --O--(CH.sub.2 CH.sub.2).sub.n --R.sub.2in which R.sub.1 is the phenyl radical or a phenyl radical which is substituted by linear or branched alkyl radicals containing a total of from 1 to 18 carbon atoms, R.sub.2 is a C.sub.4 -C.sub.8 alkyl radical, m=0 or 1 and n=3 to 30, are used as dispersants with foam-inhibiting properties in aqueous polymer dispersions and latices.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: January 1, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rainer Hoefer, Karl-Heinz Schmid, Adolf Asbeck, Uwe Held
  • Process for the preparation of reaction products of epoxidized ricinoleic acid glycerides with sulfur trioxide
    Patent number: 4981617
    Abstract: The sulfonation of epoxidized ricinoleic acid glycerides with a dry stream of gaseous sulfur trioxide diluted with a carrier gas, followed by a reaction of the sulfonated reaction product with nucleophiles, leads to salt-free and anhydrous products showing surface-active properties.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: January 1, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Bernd Fabry, Robert Piorr, Frank Clasen, Horst Ritterbex, Hans Bornmann
  • Process for direct hydrogenation of glyceride oils
    Patent number: 4982020
    Abstract: In the direct catalytic hydrogenation of glyceride oils, the glyceride oils are continuously reacted with hydrogen under pressures of from 20 to 300 bar and at temperatures of from 160.degree. to 250.degree. C. with molar ratios of hydrogen to fatty acid residues in the glyceride oil substrate of from 10:1 to 500:1, the reaction being carried out over catalysts which contain from 30 to 40% by weight copper, from 23 to 30% by weight chromium, from 1 to 7% by weight barium (% by weight, based in each case on oxidic catalyst mass) and, if desired, other transition metals in the form of their oxides and which, after calcination of the components forming the catalyst mass, are converted into shaped particulate and/or granulated elements with from 1 to 10% by weight, based on oxidic catalyst, of at least one binder, and which have been activated with hydrogen or a hydrogen-containing gas mixture.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: January 1, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Franz-Josef Carduck, Jurgen Falbe, Theo Fleckenstein, Joachim Pohl
  • Process for the preparation of .alpha.-alkyl lactones
    Patent number: 4980342
    Abstract: A convenient process for the preparation of .gamma.-alkyl-substituted-.gamma.-butyrolactones and .delta.-valerolactones is provided. The process involves forming the .alpha.-alkylidene lactone by reacting essentially equimolar amounts of an .alpha.-acyl lactone, an aldehyde, and an alkali metal hydroxide in an inert diluent at an elevated temperature while removing water and hydrogenating the .alpha.-alkylidene lactone to obtain the corresponding .alpha.-alkyl lactone.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: December 25, 1990
    Assignee: Henkel Corporation
    Inventors: Louis Rebrovic, Eugene G. Harris
  • Fluoride and chromium free acid etchant rinse for aluminum
    Patent number: 4980076
    Abstract: Problems with previously known aqueous acidic rinsing solutions for aluminum after shaping while using surface lubricants are avoided by use of a solution which contains water and (A) orthophosphoric acid in an amount to give a stoichiometric equivalent of 3.0 to 50 g/L as PO.sub.4.sup.-3, (B) an aluminum ion sequestrant component in an amount of 0.01 to 10.0 g/L; and (C) 20 to 170 ppm of ferric ion. The ferric ions act to inhibit corrosion of the stainless steel process equipment. Preferably the solution also contains 0.1 to 1.0 g/L of H.sub.2 O.sub.2, NO.sub.2.sup.-1 ions, or a mixture thereof to reoxidize ferrous ions formed by reduction of ferric ions during use of the solution and thus maintain the concentration of ferric ions above 20 ppm at all times. The solution may also contain surfactant and up to 10 g/L of dissolved aluminum ions.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: December 25, 1990
    Assignee: Nihon Parkerizing Co., Ltd.
    Inventors: Shigeo Tanaka, Tomoyuki Aoki, Yasuo Iino, Yoji Ono
  • Cementitious compositions
    Patent number: 4978392
    Abstract: The invention relates to cementitious compositions having improved fluidity and dispersability and to a method for producing same. For the present invention an ester derived from a polyoxyethylene glycol and a polycarboxylic acid, e.g. polymeric fatty acids or polycarboxylic adduct acids, is included with the cement, aggregate, water and any other additives which may be present. The esters can be partial esters or the polycarboxylic acids may be fully esterified with the polyoxyethylene glycol.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: December 18, 1990
    Assignee: Henkel Corporation
    Inventors: Alan C. Kilbarger, William S. Kain, Donald V. Kinsman
  • Water dilutable leverler coating compositions
    Patent number: 4977207
    Abstract: A leveler coating composition comprising a water-dilutable polyurethane aqueous dispersion having a solids content of 10-50% by weight and a viscosity of 10-50,000 mPa.s; a process for manufacturing the coating; and a method for using it in automotive finishes.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: December 11, 1990
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rainer Hoefer, Roland Gruetzmacher, Wolfgang Gress, Ulrich Nagorny
  • Combined dispensing container and brush
    Patent number: D314280
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: February 5, 1991
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Herbert Buecheler, Georg Bosserhoff