Patents Examined by David Leland
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Patent number: 3954660Abstract: 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: GrantFiled: July 23, 1974Date of Patent: May 4, 1976Assignee: Continental Oil CompanyInventors: E. Flynt Kennedy, Dean R. Weimer
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Patent number: 3953359Abstract: 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: GrantFiled: April 23, 1974Date of Patent: April 27, 1976Assignee: Pierce Chemical CompanyInventor: E. Melvin Gindler
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Patent number: 3951853Abstract: 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: GrantFiled: November 4, 1974Date of Patent: April 20, 1976Assignee: Diamond Shamrock CorporationInventor: David W. Suwala
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Patent number: 3951591Abstract: 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: GrantFiled: October 23, 1973Date of Patent: April 20, 1976Assignee: Hoechst AktiengesellschaftInventors: Walter Birke, Rudolf Schickfluss, Franz Schon
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Patent number: 3951840Abstract: 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: GrantFiled: April 18, 1974Date of Patent: April 20, 1976Assignee: Kao Soap Co., Ltd.Inventors: Takashi Fujino, Makoto Yamanaka, Keiichi Deguchi
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Patent number: 3948794Abstract: 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: GrantFiled: June 12, 1974Date of Patent: April 6, 1976Assignee: USM CorporationInventor: Eberhard Konig
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Patent number: 3945939Abstract: 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: GrantFiled: May 20, 1974Date of Patent: March 23, 1976Assignee: The Dow Chemical CompanyInventor: Benny Gene Barron
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Patent number: 3943066Abstract: 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: GrantFiled: May 10, 1974Date of Patent: March 9, 1976Assignee: Banque Pour L'Expansion Industrielle "Banexi"Inventor: Pierre Fusey
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Patent number: 3941705Abstract: 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: GrantFiled: March 18, 1975Date of Patent: March 2, 1976Assignee: Produits Chimiques Ugine KuhlmannInventors: Louis Foulletier, Rene Bertocchio
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Patent number: 3941453Abstract: 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: GrantFiled: November 13, 1974Date of Patent: March 2, 1976Assignee: U.S. Philips CorporationInventor: Uwe Kruger
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Patent number: 3939101Abstract: 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: GrantFiled: February 21, 1974Date of Patent: February 17, 1976Assignee: Rockwell International CorporationInventor: Orlando G. Molina
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Patent number: 3935123Abstract: 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: GrantFiled: September 20, 1974Date of Patent: January 27, 1976Assignee: Union Carbide CorporationInventors: Bela Prokai, Bernard Kanner
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Patent number: 3932126Abstract: 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: GrantFiled: October 5, 1973Date of Patent: January 13, 1976Assignee: Martin Processing Co., Inc.Inventor: Dara Ardeshir Jilla
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Patent number: 3932122Abstract: 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: GrantFiled: June 12, 1973Date of Patent: January 13, 1976Assignee: Ciba-Geigy AGInventor: Visvanathan Ramanathan
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Patent number: 3930793Abstract: 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: GrantFiled: October 19, 1973Date of Patent: January 6, 1976Assignee: Hoechst AktiengesellschaftInventors: Walter Birke, Rudolf Schickfluss, Franz Schon, Willi Steckelberg