Patents Examined by David Leland
  • Patent number: 3954660
    Abstract: The viscosity of anionic surfactant slurries is increased by admixing with such slurries an effective amount of a viscosity increasing additive selected from the group consisting of dialkyl ethers wherein the alkyl radicals of said ethers contain from 2 to 5 carbon atoms, alkoxyethoxyethanols wherein the alkyl radical contains from 2 to 6 carbon atoms, and tertiary amines wherein the alkyl radical contains from 2 to 4 carbon atoms.
    Type: Grant
    Filed: July 23, 1974
    Date of Patent: May 4, 1976
    Assignee: Continental Oil Company
    Inventors: E. Flynt Kennedy, Dean R. Weimer
  • Patent number: 3953359
    Abstract: A one step method for the spectrophotometric determination of phosphorus in the presence of protein using molybdic acid is disclosed. Protein precipitation is avoided by including a long chain amine ethylene oxide adduct in the sample reagent mixture being analyzed.
    Type: Grant
    Filed: April 23, 1974
    Date of Patent: April 27, 1976
    Assignee: Pierce Chemical Company
    Inventor: E. Melvin Gindler
  • Patent number: 3951853
    Abstract: Compositions for controlling foam in aqueous systems are prepared by dispersing in an organic liquid the particles of an amide with the reaction product of an alkyl or aryl halosilane and a base. Polymers, fatty acids and glycerides may also be present as organic components in the compositions. These compositions do not lose defoaming ability or increase in viscosity after they are heated at elevated temperatures or stored for long periods of time.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: April 20, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: David W. Suwala
  • Patent number: 3951591
    Abstract: A process for the continuous dyeing of synthetic fibrous materials from organic solvents, which comprises impregnating the said fibrous materials with organic dyebaths containing at least one dyestuff of the formula (1) ##SPC1##In which R represents a secondary or tertiary amino group of the formula (2) ##EQU1## in which R.sub.4, R.sub.5 each represents, straight chain or branched alkyl, hydroxyalkyl, lower alkyl --COO-- lower alkylene, and R.sub.4 additionally represents hydrogen lower alkyl --o-- lower alkylene, or R.sub.4 and R.sub.5 represent together with the nitrogen atom the heterocyclic ring ##EQU2## R.sub.1 and R.sub.1 ' each represents hydrogen, chlorine, bromine, lower alkyl, lower alkoxy, nitro or --SO.sub.2 -- lower alkyl, R.sub.2 and R.sub.
    Type: Grant
    Filed: October 23, 1973
    Date of Patent: April 20, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Birke, Rudolf Schickfluss, Franz Schon
  • Patent number: 3951840
    Abstract: A bleaching composition comprising a chelating agent capable of forming a water-insoluble or hardly water-soluble chelate compound with copper and/or iron and an inorganic peroxide bleaching agent.
    Type: Grant
    Filed: April 18, 1974
    Date of Patent: April 20, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Takashi Fujino, Makoto Yamanaka, Keiichi Deguchi
  • Patent number: 3948794
    Abstract: Adhesive compositions based on 2-cyanoacrylate monomers in which storage stability, cure speed and other properties are improved by inclusion of itaconic acid anhydride.
    Type: Grant
    Filed: June 12, 1974
    Date of Patent: April 6, 1976
    Assignee: USM Corporation
    Inventor: Eberhard Konig
  • Patent number: 3945939
    Abstract: Mixtures of high molecular weight polyols and low molecular weight polyols such as mixtures of glycerine initiated polyoxypropylene glycols and mono- and diethylene glycols are rendered resistant to phase separation upon storage by the addition thereto of from about 0.2% to about 3.0% by weight of colloidal silica or an onium modified clay such as Bentone 27.
    Type: Grant
    Filed: May 20, 1974
    Date of Patent: March 23, 1976
    Assignee: The Dow Chemical Company
    Inventor: Benny Gene Barron
  • Patent number: 3943066
    Abstract: The present invention concerns the preparation of a composition for making hydrocarbons and fats into biodegradable emulsions and the preparation thereof. This composition is formed substantially by aliphatic amide or carboxylic acid ester of an aliphatic amide, an ammonium salt of a carboxylic acid, a phospho-aminolipid and a petroleum solvent free from benzenic fractions. This process comprises reacting an excess of a a carboxylic acid with a primary or secondary aliphatic amine or amino-alcohol, neutralising the mixture by the addition of ammonia to bring the pH to 7, and finally adding to the neutralised mixture a phospho-aminolipide and a benzenic fraction-free petroleum solvent.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: March 9, 1976
    Assignee: Banque Pour L'Expansion Industrielle "Banexi"
    Inventor: Pierre Fusey
  • Patent number: 3941705
    Abstract: A surface-active fluorinated composition characterized by the association therein of from 35% to about 60% of at least one surface-active ampholyte compound of the formula ##EQU1## wherein n is an integer between 1 and 20, a is a number between 2 and 10, R.sub.1 is an atom of hydrogen or an alkyl radical containing from 1 to 6 atoms of carbon, R.sub.2 and R.sub.3 are alkyl radicals containing from 1 to 3 atoms of carbon, at least one of which is the methyl radical and p and q are integers between 0 and 10; from about 20% to about 40% of at least one surface-active fluorinated non-ionic compound of the formulaC.sub.n F.sub.2n.sub.+1 -- (CH.sub.2).sub.a -- CO--O--(CH.sub.2 --CH.sub.2 --O).sub.m R.sub.4wherein n and a have the same meaning as above, m is an integer between 1 and 20 and R.sub.4 is an alkyl radical containing from 1 to 6 atoms of carbon; and from about 8% to about 40% of at least one amine salt compound of the formula ##EQU2## wherein X is the group CO or SO.sub.2 R.sub.1, R.sub.5 and R.sub.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: March 2, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Louis Foulletier, Rene Bertocchio
  • Patent number: 3941453
    Abstract: Molecules with a group X which attracts electrons and comprises .pi.-electrons and conjugated therewith a group R which supplies electrons, of the formulaR -- Xin which X represents --COCF.sub.3, --COC.sub.6 H.sub.5 or --SO.sub.n CF.sub.3, n being 0 or 2, and R represents phenyl or (CH.sub.3).sub.2 N, as electrooptically active liquid inter alia have the advantage that they are achromatic compared with nitrobenzene.
    Type: Grant
    Filed: November 13, 1974
    Date of Patent: March 2, 1976
    Assignee: U.S. Philips Corporation
    Inventor: Uwe Kruger
  • Patent number: 3939101
    Abstract: Composition for ultrasonic inspection of surface and subsurface flaws and discontinuities in bodies, in the form of an aqueous gel containing an N-alkyl-2-pyrrolidone having a short alkyl chain, preferably N-methyl-2-pyrrolidone, a water soluble surfactant, e.g. a nonyl phenyl ether of polyethylene glycol, and silica, preferably in fine powder form, suspended uniformly in the gel. The composition or gel is applied to a surface of a body such as a metal aircraft structural part, and a probe or transducer of an ultrasonic testing device is contacted or pressed against the gel and the transducer is caused to move or slide in various directions on the gel to transmit ultrasonic energy through the gel and the object, to inspect the object and locate any surface or subsurface flaws or discontinuities.
    Type: Grant
    Filed: February 21, 1974
    Date of Patent: February 17, 1976
    Assignee: Rockwell International Corporation
    Inventor: Orlando G. Molina
  • Patent number: 3935123
    Abstract: Provided as novel compositions which are especially useful as stabilizers of flame-retarded, flexible polyether polyol-based urethane foam, is an admixture containing from about 10 to about 90 weight percent of Component A and from about 90 to about 10 weight percent of Component B, said percentages being based on the total weight of A and B contained in the admixture, wherein: Component A is a cyano-bearing polysiloxane-polyoxyalkylene copolymer having the average composition,(R).sub.3 SiO[(R).sub.2 SiO].sub.x [(NC-R')(R)SiO].sub.y [(R) (E)SiO].sub.z Si(R).sub.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: January 27, 1976
    Assignee: Union Carbide Corporation
    Inventors: Bela Prokai, Bernard Kanner
  • Patent number: 3932126
    Abstract: A process is disclosed for coloring a polyester material, which comprises impregnating the same by padding, printing or cascading with an aqueous solution or printing paste of one or more acid dyes incorporated with both (a) an organic nitrogen compound and (b) an organic carboxylic acid, drying the impregnated polyester material and then exposing same to dry heat at a temperature between 150.degree.C. and 230.degree.C. for a period of 5 to 60 seconds, thereby effecting fixation of said acid dye or dyes on the polyester material and uniform distribution thereof within the polyester material. The organic nitrogen compound with which the polyester material is treated is an alkyleneamine, an alkanolamine, or an alkylamine.
    Type: Grant
    Filed: October 5, 1973
    Date of Patent: January 13, 1976
    Assignee: Martin Processing Co., Inc.
    Inventor: Dara Ardeshir Jilla
  • Patent number: 3932122
    Abstract: Azo compounds of the formula ##SPC1##Wherein D represents the radical of a diazo component, R.sub.1 and R.sub.3 each represent a hydrogen atom or a substituent and R.sub.2 represents a substituent, and which contain at least one carboxy group that may not, however, be bonded in the adjacent position to the azo bridge directly to the ring.
    Type: Grant
    Filed: June 12, 1973
    Date of Patent: January 13, 1976
    Assignee: Ciba-Geigy AG
    Inventor: Visvanathan Ramanathan
  • Patent number: 3930793
    Abstract: A process for the continuous dyeing of textile material containing or consisting of synthetic fibers from organic solvents, which comprises impregnating the said textile materials with an organic dyebath containing at least one dyestuff of the formulaR.sub.2 O -- A.sub.1 -- N = N -- Y -- N -- A.sub.2 -- OR.sub.1in which A.sub.1 and A.sub.2 each represent, independently of each other, phenylene, lower alkyl-phenylene, lower alkoxy-phenylene, chlorophenylene, bromophenylene or naphthylene, Y represents phenylene, lower alkyl-phenylene, lower alkoxy-phenylene, di(lower alkyl)-phenylene, di(lower alkoxy)-phenylene, lower alkyl-lower alkoxy-phenylene, chlorophenylene, bromophenylene, biphenylene, di(lower alkyl)-biphenylene, di(lower alkoxy)-bi-phenylene, di(chloro)-biphenylene or di(bromo)-biphenylene, R.sub.1 represents a straight chain or branched alkylcarbonyl of at most 18 carbon atoms, benzoyl, lower alkyl-benzoyl, chlorobenzoyl or bromobenzoyl, and R.sub.
    Type: Grant
    Filed: October 19, 1973
    Date of Patent: January 6, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Birke, Rudolf Schickfluss, Franz Schon, Willi Steckelberg