Patents Represented by Attorney, Agent or Law Firm Norvell E. Wisdom
  • Composition and process for and article with improved autodeposited surface coating based on epoxy resin
    Patent number: 5500460
    Abstract: The quality of coating in autodeposition from solutions in which the coating is predominantly derived from epoxy resins can be improved in two ways, which can be used jointly or separately: A blocked isocyanate is used as cross linking agent for the epoxy resin, and a surfactant that prevents the occurrence of phase separation during drying of the coating is used. Preferably the surfactant is a fluoroaliphatic polymer ester.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: March 19, 1996
    Assignee: Henkel Corporation
    Inventors: Bashir M. Ahmed, Rohitha M. Jayasuriya, Thomas R. Hopkins
  • Surface treatment method for aluminum
    Patent number: 5498759
    Abstract: The cleaned surface of an aluminum or aluminum alloy product, for example, aluminum coil, is treated with a 0.5 to 3 second spray of a chromating bath heated to 40.degree. to 60.degree. C., said bath having a pH of 1.0 to 3.0 and containing 0.1 to 3.0 g/L of tungstate ions and/or molybdate ions, 0.5 to 4.0 g/L of hexavalent chromium ions, 5.0 to 30.0 g/L of phosphate ions, and 0.05 to 2.0 g/L of free fluoride ions. A highly corrosion-resistant, highly paint-adherent chromate coating can thereby be formed on the surface of aluminum in less time than that required by prior phosphoric acid-based chromating treatments.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: March 12, 1996
    Assignee: Henkel Corporation
    Inventors: Kazuya Nakada, Masayuki Yoshida
  • Composition and process for treating tinplate
    Patent number: 5498300
    Abstract: To impart an excellent corrosion resistance and adherence to the surface of tinplate while avoiding the production of sludge in the treatment bath during continuous treatment, a bath is used that contains phosphate ions, from 0.1 to 5.0 g/L of chelating agent, and tin ions; has a pH from 2.0 to 4.5; is essentially free of oxidizing agent and ferric ion; and has an oxidation-reduction potential of .ltoreq.450 mV more oxidizing than a silver-saturated silver chloride reference electrode.
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: March 12, 1996
    Assignee: Henkel Corporation
    Inventors: Tomoyuki Aoki, Masayuki Yoshida
  • Oximation process
    Patent number: 5488161
    Abstract: An improved process for oximation of carbonyl compounds, such as ketones and aldehydes by oximation with hydroxylamine including oximation processes carried out in the presence of a catalytic amount of a phase transfer catalyst comprised of a mixture of an alkyl phenol, such as nonylphenol or dodecylphenol and an organic carboxylic acid, such as 2-ethylhexanoic acid, in the presence of an alkali metal or alkaline earth metal compound. The resulting oximes are useful as metal extractants.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: January 30, 1996
    Assignee: Henkel Corporation
    Inventor: Leroy O. Krbechek
  • Aqueous lubricant and surface conditioner for formed metal surfaces
    Patent number: 5486316
    Abstract: The coefficient of friction of aluminum can surfaces after alkaline cleaning and drying can be substantially reduced by adding to the alkaline cleaner a mobility enhancing additive, preferably a surface active quaternary ammonium salt with hydroxyethyl substituents on the quaternary nitrogen atoms. A can surface suitable for automatic conveying and high quality lacquer or printing ink adhesion can thereby be obtained, if desired without including any substantial fluoride content in any treatment stage.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: January 23, 1996
    Assignee: Henkel Corporation
    Inventors: James P. Bershas, Timm L. Kelly, Gary L. Rochfort
  • Dual coated metal substrates and method of making
    Patent number: 5486414
    Abstract: Article of manufacture and method of making the same in which a metal substrate has an undercoating is made from a combination of at least one pulverulent metal and a transition metal compound and a coating thereon containing an autodeposited resin formed under autodepositing conditions.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: January 23, 1996
    Assignee: Henkel Corporation
    Inventors: Oscar E. Roberto, Marc A. Maxim
  • Aqueous lubricant and surface conditioner for formed metal surfaces
    Patent number: 5476601
    Abstract: A lubricant and surface conditioner for formed metal surfaces, particularly aluminum and tin beverage containers, reduces the coefficient of static friction of said metal surfaces and enables drying said metal surfaces at a lower temperature. The conditioner includes a water-soluble organic material selected from amine oxides and quaternary ammonium salts, fluozirconate, fluohafnate, or fluotitanate ion, and preferably also phosphate and nitrate ions. Good resistance to damaging the friction reducing effect by overheating and to staining of the domes of treated containers during pasteurization can be achieved.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: December 19, 1995
    Assignee: Henkel Corporation
    Inventors: James P. Bershas, Timm L. Kelly, Gary L. Rochfort, Henry A. Rossmaier
  • Aqueous composition for wet sanding of dried paint, plastics, and the like
    Patent number: 5476411
    Abstract: An aqueous liquid composition containing glycerin and polyethylene glycol with a molecular weight in the range of about 400 to about 1000, and, optionally, additional surfactant, is an excellent liquid auxiliary for wet sanding and produces a sanding mud that can easily be removed by washing with water, even after drying.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: December 19, 1995
    Assignee: Henkel Corporation
    Inventor: Theodore D. Held, III
  • Making galvanized steel with excellent darkening resistance
    Patent number: 5472522
    Abstract: To form a darkening-resistant chromate ram on the surface of a galvanized steel sheet, the surface of the galvanized steel shut is treated with a phosphate treatment solution before it is chromate-treated in such a way that zinc phosphate crystals will cover from 10-60% of the substrate surface.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: December 5, 1995
    Assignee: Henkel Corporation
    Inventors: Jun Kawaguchi, Takao Ogino, Kensuke Mizuno
  • Process for the production of mixtures of stereoisomers of 8,12-oxido-13,14,15,16-tetranorlabdane
    Patent number: 5470989
    Abstract: Stereoisomer mixtures of 8,12-oxido-13,14,15,16-tetranorlabdane are obtained in yields of at least 95% by dehydrating cyclization of stereoisomer mixtures of 8,12-dihydroxy-13,14,15,16-tetranorlabdane in the presence of acid-loaded aluminum oxide.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: November 28, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Thomas Gerke
  • Use of partially dehydrated castor oils as lubricants
    Patent number: 5468405
    Abstract: Partially dehydrated castor oils having hydroxyl numbers in a range between 90 and 150 mg of KOH/g are useful as lubricants.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: November 21, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Johann Klein, Frank Bongardt, Karl-Heinz Schmid
  • Process for the production of an aluminum triformate solution containing alkali metal and/or alkaline earth metal, highly concentrated aluminum triformate solutions containing alkali and/or alkaline earth metal, and their use
    Patent number: 5468892
    Abstract: The invention concerns a method of preparing preferably highly concentrated aluminum triformate solutions containing alkali metals and/or alkaline earth metals, by the neutralization of an alkaline aluminate solution containing alkali metals and/or alkaline earth metals by adding formic acid, and subsequently heating the solid precipitated to give a clear, stable aluminum triformate solution. The invention also concerns highly concentrated aluminum triformate solutions containing alkali metals and/or alkaline earth metals and the use of such solutions to impregnate textiles, in disinfectant and cleaning agents, as a coagulant for paints, or as a setting agent in leather processing.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: November 21, 1995
    Assignee: Henkel Kommanditgesellechaft auf Aktien
    Inventors: Loert de Riese-Meyer, Rudolf Zauns-Huber
  • Mixtures of esters of highly branched carboxylic acids
    Patent number: 5468406
    Abstract: Described are mixtures of esters of carboxylic acids branched at the 2 position and polyol mixtures comprising 60 to 99.9% by weight of branched saturated aliphatic polyols with 2 to 6 primary hydroxy groups and 4 to 10 C atoms and 0.1 to 40% by weight of unbranched saturated aliphatic diols with 2 to 12 C atoms. In spite of the branched chain, such acids can be esterified very rapidly, the resulting esters being suitable for use as lubricants.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: November 21, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Karl-Heinz Schmid, Frank Bongardt, Reinhold Wuest
  • Use of special compounds as smoothing agents in combing oils
    Patent number: 5464660
    Abstract: Special compounds, having solidification points above 25.degree. C., selected from the group of dialkylethers and/or carboxylic acid esters are used as smooth agents for the production of wool combed slivers.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: November 7, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Becker, Raymond Mathis, Syliva Stapper-Druyen, Karin Robrahn, Rainer Hoffmann, Yasar C. Kiray
  • Aqueous lubricant and surface conditioner for formed metal surfaces
    Patent number: 5458698
    Abstract: A lubricant and surface conditioner for formed metal surfaces, particularly aluminum and tin beverage containers, reduces the coefficient of static friction of said metal surfaces and enables drying said metal surfaces at a lower temperature. The conditioner includes a water-soluble organic material selected from alkoxylated or non-alkoxylated castor oil triglycerides and hydrogenated castor oil derivatives; alkoxylated and nonoalkoxylated amine salts of a fatty acid including mono-, di-, tri-, and poly-acids; alkoxylated and non-alkoxylated amino fatty acids; alkoxylated and non-alkoxylated fatty amine N-oxides, alkoxylated and non-alkoxylated quaternary ammonium salts, oxa-acid esters, and water-soluble alkoxylated and non-alkoxylated polymers.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: October 17, 1995
    Assignee: Henkel Corporation
    Inventors: James P. Bershas, Timm L. Kelly, Gary L. Rochfort
  • Cleaning process for electronic and electrical assemblies
    Patent number: 5456760
    Abstract: The invention relates to the use of diacetone alcohol in water-miscible cleaning agents free from halogenated hydrocarbons for cleaning electronic and electrical assemblies. Diacetone alcohol can be used to particularly good effect in the removal of fluxes because, in addition to rosin residues, the so-called "white residues" are also removed.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: October 10, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Hans J. Goehausen
  • Process for the production of fatty acid lower alkyl esters
    Patent number: 5455370
    Abstract: Fatty acid glycerides can be transesterified with lower aliphatic alcohols if the reaction is carried out in the presence of fatty acids corresponding to formula (II):R.sup.2 --COOH (II),in which R.sup.2 is an aliphatic hydrocarbon moiety containing 11 to 17 carbon atoms and 0, 1 or 2 double bonds. The products are distinguished by a low content of bound glycerol and a low acid value. Removal or neutralization of the catalyst is unnecessary because, after the transesterification, the fatty acids are also present in the form of their esters.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: October 3, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Guenther Demmering, Christian Pelzer, Lothar Friesenhagen
  • Process for controlling a fluoride containing conversion coating forming composition during its use for conversion coating aluminum containing metal
    Patent number: 5454882
    Abstract: The invention is a method for the accurate control of the conversion film thickness produced on aluminiferous metal materials by fluorine-containing acidic conversion treatment baths; and a simple method for determining the EFC value (Effective Fluorine Concentration). The EFC value is determined by potentiometric titration of a fluorine-containing acidic conversion treatment bath having pH<4 without prior pH adjustment using a fluorine ion electrode as indicator electrode. The titrant is an aqueous solution containing the Al ion, La ion, Y ion, Zr ion, Ga ion, Ce ion, or Be ion, an inflection point in the potential curve is used as an indication of the activity of the conversion treatment bath.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: October 3, 1995
    Assignee: Henkel Corporation
    Inventors: Yasuo Asai, Yuzuru Matsubara, Hitoshi Ishi
  • Powdery hydrophobic filler for bituminized traffic surfaces
    Patent number: 5453212
    Abstract: The invention concerns a powdery, hydrophobic filler for bituminized traffic surfaces, including at least one substance that lowers the freezing point of water.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: September 26, 1995
    Assignees: ChemischeFabrik Gruenau GmbH, Mannesmann Aktiengesellschaft
    Inventors: Dieter Annemaier, Stefan Keipl, Wilhelm Kaemereit, Oskar Schmitt
  • Temporary coating system
    Patent number: 5453459
    Abstract: The invention is a composition for providing a temporary coating to protect the surface of an article and a solvent free composition for rapidly removing the coating from the article. The invention also includes a method for protecting a surface of an article and a system for carrying out the process.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: September 26, 1995
    Assignee: Henkel Corporation
    Inventor: Wilbert J. Roberts