Patents Represented by Attorney, Agent or Law Firm John E. Drach
  • Polyester gasket plasticizers suitable for use with internally plasticized appliance coatings
    Patent number: 5576367
    Abstract: Liquid polyester plasticizers, having a hydroxyl value of at least 25, are incorporated into vinyl resins, such as PVC, which are formed into gaskets for use on appliances made from textured coil stock, especially refrigerators or freezers. These plasticizers have no detrimental effect on the relatively soft surface coatings on such appliances.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: November 19, 1996
    Assignee: Henkel Corporation
    Inventors: William L. O'Brien, William J. Mertz
  • Process for the direct production of alkyl glycosides
    Patent number: 5576425
    Abstract: The aliphatic primary alcohols are reacted with a glycose, more especially glucose, in the presence of an acidic catalyst in certain process steps so that particularly light-colored and alkali-stable alkyl glucosides are obtained after a subsequent, compulsory bleaching step, which represents an improvement over known direct synthesis processes. The process may be carried out both on a laboratory scale and also on an industrial production scale.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: November 19, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Karlheinz Hill, Manfred Biermann, Henry Rossmaier, Rainer Eskuchen, Willi Wuest, Josef Wollmann, Andreas Bruns, Guenter Hellmann, Karl-Heinz Ott, Walter Winkle, Klaus Wollmann
  • Process for the production of low-viscosity storable amphoteric surfactants from imidazolines
    Patent number: 5569767
    Abstract: In order to prepare fluid, storage-stable ampholytic surface-active agents, (a) 1-hydroxyethyl-2-alkyl-2-imidazolines having formula (1), in which R.sup.1 stands for an alkyl residue with 5 to 21 carbon atoms, are quaternated or carboxymethylated with halogenated carboxylic acid salts at a pH range from 7.5 to 9, and at the same time hydrolyzed with aqueous bases, then (b) the pH value of the reaction final products is set between 5 and 7.
    Type: Grant
    Filed: July 25, 1995
    Date of Patent: October 29, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Guenter Uphues, Uwe Ploog, Renate Schick, Hans-Juergen Schwark, Sandra Witt
  • Stamping lubricants
    Patent number: 5569406
    Abstract: Stamping lubricant compositions which exhibit improved lubricity and methods for reducing friction and wear utilizing said stamping lubricant compositions.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: October 29, 1996
    Assignee: Henkel Corporation
    Inventors: Jeff A. Barnhorst, Roger H. Garst, Ronald H. Gordon, Eugene R. Zehler
  • Process for the production of lower alkyl oligoglucosides
    Patent number: 5569752
    Abstract: Light-colored lower alkyl oligoglucosides having a low polyglucose content can be obtained in short reaction times by a process in whicha) aqueous glucose sirup is added to a mixture of a lower alcohol and an acidic catalyst at elevated temperatures via an inline mixer,b) the water present in the reaction mixture and the water released are azeotropically distilled off continuously andc) after the addition of glucose sirup, the reaction mixture is subjected to heating until at least 99% of the glucose is reacted.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: October 29, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Paul Schulz, Herbert Esser, Rainer Eskuchen
  • Alkyl polyglycosides having improved aesthetic and tactile properties
    Patent number: 5567808
    Abstract: A composition and process for enhancing the aesthetic and tactile properties of an alkyl polyglycoside involving combining a first alkyl polyglycoside having the general formula I:RO(Z).sub.a (I)wherein R is a monovalent organic radical having from about 8 to about 18 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; and a is a number having a value from about 1 to about 6, with an additive selected from the group consisting of C.sub.6 -C.sub.10 alkyl sulfates, unsaturated aliphatic carboxylic acids including hydroxy-substituted derivatives thereof or their salts, unsaturated aliphatic sorbitan esters, C.sub.8 -C.sub.36 branched aliphatic dicarboxylic acids, C.sub.6 -C.sub.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: October 22, 1996
    Assignee: Henkel Corporation
    Inventors: Sureshchandra G. Desai, John F. Hessel, Allen D. Urfer, Charles B. Allen, Stephen A. Fischer
  • Modified process for the direct production of alkyl glycosides
    Patent number: 5559219
    Abstract: Alkyl glycosides are produced by direct synthesis from higher monofunctional alcohols and powder-form glycoses, particularly anhydrous glucose and/or glucose monohydrate, in the presence of acidic catalysts at elevated temperatures, the interior of the reactor being kept under reduced pressure and the glycose being introduced with delay into the alcohol reactants present in excess therein, the alcohol reactants containing the acidic catalyst and being heated to the reaction temperature, while water released in the reaction mixture is removed from the reaction zone via the gas phase. A partial stream is run off from the liquid reaction mixture and delivered to a premixing zone into which the powder-form reactant is simultaneously introduced and is converted with the liquid partial stream into a paste which is delivered to the interior of the reactor via a following intensive mixer.
    Type: Grant
    Filed: February 9, 1992
    Date of Patent: September 24, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Willi Wuest, Joseph Wollmann, Rainer Eskuchen
  • Agriculturally active composition comprising polyhydroxy acid amide adjuvant
    Patent number: 5559078
    Abstract: Compositions containing biologically active materials are readily formulated with polyhydroxy fatty acid amides as dispersants and/or wetting agents. The resultant compositions are environmentally acceptable in that they are readily biodegradable and easily applied to an agricultural substrate.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: September 24, 1996
    Assignee: Henkel Corporation
    Inventor: Roger H. Garst
  • Method of partitioning blood using polyesters
    Patent number: 5556557
    Abstract: A polyester is provided which facilitates the separation of blood into light and heavy phases via centrifugation in a blood collection vessel. The polyester is useful as a component of a partitioning composition formulated to have appropriate specific gravity to be positioned intermediate the light and heavy blood phases during centrifugation. A partitioning composition including a polyester of the invention provides a particular advantage in blood collection vessels due to its lighter and more consistent coloration. The polyester composition can be prepared with relative ease compared to prior art polyesters useful in blood partitioning compositions.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 17, 1996
    Assignee: Henkel Corporation
    Inventors: William L. O'Brien, Alan C. Kilbarger
  • Method for preparing stabilized alkyl glycosides
    Patent number: 5556950
    Abstract: Glycoside products having a propensity to discolor and/or to exhibit haze under aqueous alkaline or neutral pH conditions can be stabilized to substantially reduce the extent of discoloration and to essentially eliminate any haze which might also be present by adjusting the pH of an aqueous solution of the alkyl glycoside product to about 7 prior to treatment with a metal borohydride material which at the end of the reaction period is consumed resulting in a stabilized alkyl polyglycoside product which does not exhibit a haze in an aqueous solution at a pH of about 7.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: September 17, 1996
    Assignee: Henkel Corporation
    Inventors: Patrick M. McCurry, Jr., Janet R. Varvil
  • Process for the production of storable nonionic surfactants
    Patent number: 5556573
    Abstract: Process for the production of aqueous storable nonionic surfactants in which crystallization moderators selected from the group consisting ofa) alkyl glycosides based on short-chain primary alcohols,b) alkyl glycosides based on Guerget alcohols,c) glycosides based on polyols,d) short-chain primary alcohols,e) fatty alcohol polyglycol ethers,f) polyethylene glycols,g) glucose andh) iron(III) ionsare added to aqueous preparations containing alkyl and/or alkenyl glycosides corresponding to formula (I):R.sup.1 O--(G).sub.P (I)in which R.sup.1 is a linear alkyl and/or alkenyl radical containing 6 to 22 carbon atoms, G is a sugar unit containing 5 or 6 carbon atoms and p is a number from 1 to 10.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: September 17, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Manfred Weuthen, Thomas Engels, Herman Hensen, Holger Tesmann, Dieter Nickel
  • Continuous bleaching of alkylpolyglycosides
    Patent number: 5554740
    Abstract: A continuous method of bleaching an alkylpolyglycoside, substantially free of alcohol, with peroxy compounds, preferably hydrogen peroxide, which is highly efficient to provide an unexpected high degree of color reduction from a dark brown to a light, white product, from an extinction coefficient color respectively of about 10 to about 15 to about 0.025 to about 0.15. The bleaching is carried out at controlled pH and temperature, under pressure preferably in the presence of Mg or MgO.
    Type: Grant
    Filed: August 23, 1994
    Date of Patent: September 10, 1996
    Assignee: Henkel Corporation
    Inventors: Patrick M. McCurry, Jr., Robert L. Klein, Jr., Michael W. Gibson, James D. Beaulieu, Janet R. Varvil
  • Process for the production of alkyl and/or alkenyl oligoglucosides
    Patent number: 5554741
    Abstract: The aliphatic primary alcohols are reacted with a glycose, more especially glucose, in the presence of an acidic catalyst in certain process steps so that particularly light-colored and alkali-stable alkyl glucosides are obtained after a subsequent, compulsory bleaching step, which represents an improvement over known direct synthesis processes. The process may be carried out both on a laboratory scale and also on an industrial production scale.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: September 10, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Franz-Josef Carduck, Paul Schulz, Rainer Eskuchen
  • Process for the removal of dissolved metallic catalyst from ester products
    Patent number: 5550264
    Abstract: A process for purifying crude ester containing residual metallic catalyst is described. The process comprises (a) adding to a crude ester product an amorphous silicon dioxide adsorbent capable of adsorbing dissolved metallic catalyst; (b) heating the combination at a temperature of between about 80.degree. C. and about 130.degree. C.; and (c) separating the ester from the adsorbent by filtration, such that residual metallic catalyst is retained on the adsorbent.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: August 27, 1996
    Assignee: Henkel Corporation
    Inventor: A. Fred Elsasser
  • Biologically active composition
    Patent number: 5550115
    Abstract: A composition in dry form which can easily undergo dry blending and milling contains biologically active materials and a solid surfactant composed of a combination of an alkyl polyglycoside and an inert carrier selected from the group consisting of silica, talc, a zeolite, magnesium aluminum silicate, calcium sulfate, magnesium carbonate, magnesium oxide, aluminum oxide.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: August 27, 1996
    Assignee: Henkel Corporation
    Inventors: Roger H. Garst, Jane C. Mueninghoff, Matthew C. Schwan
  • Alkyl and/or alkenyl oligoglycoside carbonates
    Patent number: 5545731
    Abstract: Alkyl and/or alkenyl oligoglycoside carbonates are obtainable by condensation of alkyl and/or alkenyl oligoglycosides corresponding to formula (I)R.sup.1 O--(R.sup.2 O).sub.x --[G].sub.p (I)in whichR.sup.1 is a C.sub.1-22 alkyl and/or alkenyl radical,R.sup.2 is a C.sub.2-4 alkylene radical,x is 0 or a number of 1 to 30,[G] is a sugar unit containing 5 or 6 carbon atoms andp is a number of 1 to 10,with dialkyl carbonates corresponding to formula (II)R.sup.3 O--CO--OR.sup.4 (II)in whichR.sup.3 and R.sup.4 independently of one another represent C.sub.1-10 alkyl radicals,in the presence of basic catalysts.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: August 13, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Manfred Weuthen
  • Process for preparing surfactant mixtures having high solids content
    Patent number: 5545622
    Abstract: Highly concentrated mixtures of surfactants are obtained by a method which comprises adding the acid form of a neutralizable surfactant to an aqueous composition comprised of a base and an alkyl polyglycoside.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: August 13, 1996
    Assignee: Henkel Corporation
    Inventors: Thomas Casamassina, Florencio Morales, Jr., Barry A. Salka, John Fallon
  • Free-flowing water-containing alkyl sulfate pastes
    Patent number: 5538672
    Abstract: Water-containing, free-flowing and pumpable alkyl sulfate pastes having a viscosity, as measured at a shear rate of 10 s.sup.-1, of 5 Pa.s to 100 Pa.s and preferably 5 Pa.s to 50 Pa.s at temperatures of 50.degree. to 90.degree. C. which contain an alkyl sulfate corresponding to formula I:R.sup.1 --O--SO.sub.3 M.sup.1 (I)in which R.sup.1 is a linear or branched C.sub.12-22 alkyl radical and M.sup.1 is an alkali metal, ammonium, alkyl ammonium or hydroxyalkyl ammonium ion;an alkenyl sulfate corresponding to formula II:R.sup.2 --O--SO.sub.3 M.sup.2 (II)in which R.sup.2 is an alkenyl radical containing 16 to 22 carbon atoms and 1, 2 or 3 double bonds and M.sup.2 is an alkali metal, ammonium, alkyl ammonium or hydroxyalkyl ammonium ion;and a process for their preparation.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: July 23, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rainer Hofmann, Bert Gruber, Andreas Syldath, Ditmar Kischkel
  • Stabilized surfactant paste
    Patent number: 5538669
    Abstract: Water-based surfactant pastes, more particularly those containing nonionic surfactants of the alkyl glycoside type, are effectively stabilized against microbial infestation if, after oxidative bleaching to eliminate alkali-sensitive color bodies, they are adjusted to a pH value of at least 11 by addition of alkaline substances.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: July 23, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Paul Schulz, Rainer Eskuchen, Manfred Weuthen
  • Retard systems for the sustained release of medicinal and/or biological valuable materials from a depot carrier material
    Patent number: 5538738
    Abstract: The invention relates to the use of free radical-reactive cross-linker components based on olefinically unsaturated esters of lower hydroxycarboxylic acids and/or oligomers thereof for modifying depot materials, and especially retard systems, which contain medicinal and/or biological valuable materials in admixture with a carrier material in a sustained release form. The cross-linkers are present as polymer compounds in the application form of the retard system and may be provided in the retard system or depot material to be applied in a largely homogeneous as well as in a non-uniform distribution. The invention also relates to retard systems which contain medicinal and/or biological valuable materials and have been based on oligomer and/or polymer compounds of lower hydroxycarboxylic acids as carrier materials providing a sustained release of the active substance.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: July 23, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Ritter, Rudolf Lehmann, Rainer Sorg