Class 252/389.5 - Chromium containing

Subclass of Class 252 - Compositions
Definition: Compositions which include a compound containing an atom
No. of patents: 30
Last issue date: 07/01/2008

Number	Title	Issue Date
7393395	Surface-treating agent for metal The present invention provides a surface-treating agent which improves heat resistance, adhesiveness to resin and solder wettability. The surface-treating agent for metal contains a tetrazole derivative represented by the following formula and/or a salt thereof,...	07/01/2008
6565671	Surface-treated steel sheet coated with chromate film for fuel tanks and method of fabricating the same The present invention relates to a surface-treated steel sheet coated with a chromate layer having excellent corrosion resistance, fuel resistance and seam weldability, and a chromate solution used for preparing the surface-treated steel sheet. Specifical...	05/20/2003
6447620	Water-based surface-treating agent for metallic material A water-based surface-treating agent for metallic materials which gives a film highly satisfactory in corrosion resistance, blackening resistance, wet secondary adhesion to topcoatings, low-pollution characteristics (amount of fixed chromium), chemical re...	09/10/2002
6294262	Composition and process for anticorrosive treatment of non-ferrous metal Disclosed is a composition and a process for anticorrosive treatment of the surface of non-ferrous metal. The composition is obtainable by treating an aqueous solution of CrO3 and an inorganic acid with phosphorous acid as a reducing agent unti...	09/25/2001
6190779	Corrosion resistant coating containing and amorphous phase The disclosure relates to the forming mineralized coatings on metal surfaces and to methods of forming such coatings. The coating can include a wide range of compounds and normally at least a portion of the coating corresponds to an amorphous phase. The c...	02/20/2001
6071435	Composition and process for treating a zinciferous surface To inhibit the blackening of zinciferous metal-plated steel sheet while also generating a good corrosion resistance, fingerprint resistance, and chromium fixation ratio for the steel sheet, it is coated with an aqueous liquid composition that has a pH not...	06/06/2000
5976887	Electrochemiluminescence assays based on interactions with soluble metal ions and diaminoaromatic ligands A novel electrochemiluminescent (ECL) reaction between diaminoaromatic ligands and soluble metal ions, specifically reactions between aminoaromatic ligands, such as 2,4-diaminotoluene (2,4,DAT), 3,4-diaminotoluene (3,4,DAT) and 2,3-diaminonaphthalene (2,3...	11/02/1999
5407471	Corrosion inhibition composition Corrosion inhibitor compositions with improved activity are prepared from a neutral or overbased salt of an organic acid and another metal-containing corrosion inhibitor....	04/18/1995
5338347	Corrosion inhibition composition Corrosion inhibitor compositions with improved activity are prepared from a neutral or overbased salt of an organic acid and another metal-containing corrosion inhibitor....	08/16/1994
5131948	Anticorrosion coating composition An improved anticorrosion coating composition is disclosed. The composition is characterized in that in the known anticorrosion coating composition comprising a chromic acid compound or a chromic acid compound and a boric acid compound, a powder of zinc, ...	07/21/1992
5077008	Anti-microbial composition Medical instruments, which may include brass, copper, aluminum, stainless steel, carbon steel, or plastic parts are sterilized or disinfected in an anti-microbial solution. The anti-microbial effect of a strong oxidizing agent, such as peracetic acid, is ...	12/31/1991
4876039	Process for preparing silicone microparticles cured by a Michael addition reaction Microparticles, such as microspheres and microcapsules, comprising a solid organopolysiloxane are prepared by curing a dispersion of discrete entities by means of a Michael-type addition reaction. The discrete entities are dispersed in a fluid continuous ...	10/24/1989
4869845	Water treatment compositions A water soluble polymer composition is disclosed. The polymer has repeat units characterized by the structural formulae: ##STR1## wherein R1 is H or lower alkyl (C1 -C3); R2 is OH, OM, or NH2 ; M...	09/26/1989
4693754	Aluminum particles resistant to reaction with water A process is provided by which aluminum particles are treated by inorganic reagents in essentially organic media to avoid inefficiencies of aqueous treatments. Particles may be treated separately, or they may be treated in situ during comminution. Inorgan...	09/15/1987
4692316	Method of inhibiting corrosion in aqueous systems A method for inhibiting corrosion in an aqueous system which comprises adding to the system a corrosion inhibiting salt capable of forming a passivating film at the anode, and a substantially linear cationic polymer, is especially useful in cooling water ...	09/08/1987
4644029	Chromate coatings for metals A composition and method are particularly suitable for applying a corrosion preventive and paint receptive coating to metal surfaces where immersing treatment is impossible or impractical. A brush-on aqueous composition free of reducing agent containing h...	02/17/1987
4606890	Process for conditioning metal surfaces Process for conditioning metal surfaces to inhibit their corrosion and/or to inhibit scale deposition thereon by treating said surfaces: (A) prior to contact with a corrosive or scaling environment, with 2-hydroxy-phosphonoacetic acid or a metal salt thereof a...	08/19/1986
4501677	Heterocyclic nitrogen compounds--organometallic salt complexes as corrosion inhibitors in lubricating oils A lubricating oil composition with improved corrosion inhibiting properties comprising a major amount of a lubricating oil basestock and an effective amount of a complex of a selected heterocyclic nitrogen compound and an organometallic salt of a C4	02/26/1985
4431563	Inhibitors for acid gas conditioning solutions The corrosion of ferrous metal surfaces in gas conditioning apparatus is inhibited by using a gas conditioning solution such as aqueous alkanolamines which contain thionitrogen compounds such as metal thiocyanates or thioamides. After recycling the gas co...	02/14/1984
4411865	Method of corrosion inhibition in aqueous mediums A method for reducing corrosion of metal surfaces is disclosed according to which a specific corrosion inhibitor is utilized. The inhibitor comprises water-soluble zinc compound, water-soluble chromate compound and copolymer of acrylic acid and hydroxylat...	10/25/1983
4397749	Oil-soluble metal thiolate-succinimide complexes Oil-insoluble metal thiolates prepared by reacting an acyloin, phosphorus pentasulfide and a heavy metal salt are rendered oil soluble when combined with alkenyl or alkyl mono- or bis-succinimides. The complexes are effective as anti-oxidants and anti-wea...	08/09/1983
4329250	Low level chromate-based corrosion inhibition in aqueous mediums A method and composition are disclosed for treating corroding aqueous mediums to reduce the corrosion of metal surfaces exposed thereto. The treatment comprises water-soluble chromate and a copolymer of acrylic acid and hydroxy alkyl acrylate....	05/11/1982
4324684	Stable compositions for use as corrosion inhibitors A composition is disclosed comprising a stable aqueous solution of (i) water-soluble zinc compound, (ii) water-soluble chromate compound and (iii) a particular type of water-soluble polymer composed essentially of moieties derived from acrylic acid and hy...	04/13/1982
4297317	Low level chromate-based corrosion inhibition in aqueous mediums A method and composition are disclosed for treating corroding aqueous mediums to reduce the corrosion of metal surfaces exposed thereto. The treatment comprises water-soluble chromate and a copolymer of acrylic acid and hydroxy alkyl acrylate....	10/27/1981
4218385	Tri-substituted, hydrocarbon soluble, chromium compound synthesis An improved method for synthesizing a hydrocarbon soluble (RCOO)3 Cr chromium compound is described. The disclosed method employs a two-step reaction scheme utilizing a nonhalogenated chromium compound such as chromic acid anhydride as a starti...	08/19/1980
4173665	Method of rustproofing motor vehicles An improved rustproofing composition for application to metal panels of motor vehicle bodies for prevention of rust and corrosion of same, comprising polychloroprene polymer latex solids dispersed in an aqueous medium, surface active agents, pigments, fre...	11/06/1979
4104293	Oil-soluble chromium compositions This invention relates to the preparation of oil-soluble chromium compositions of high chromium content, such as from about 15 to 30% chromium; to the resulting products; and to the use of such products, for example, as fuel additives, such as additives e...	08/01/1978
4051066	Corrosion-inhibiting rubber and methods of preparation The disclosed corrosion-inhibiting elastomers are typically made by milling the corrosion inhibitor into a solid rubber matrix. Preferred corrosion inhibitors include the aromatic carboxylates of primary, secondary or tertiary amines. Chromates and 2-ethy...	09/27/1977
3956142	Noncorroding water base drilling fluids and additive system for making Water base drilling fluids having superior stability characteristics and having an improved noncorroding nature utilize an additive system comprising an alkali metal lignin, lignite, quebracho, and a water soluble chromium (VI) salt capable of introducing...	05/11/1976
3932285	Chromium salt compositions and a process for their production Stable solutions that contain at least 7.5% by weight of dissolved chromium comprise an organic solvent and a mixture of chromium salts that contains at least one chromium salt of a straight-chain aliphatic monocarboxylic acid having 5 to 10 carbon atoms ...	01/13/1976

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Class 252/389.5 - Chromium containing