Abstract: Amine-complexed zinc salts of organic diacids selected from the group consisting of (i) dicarboxylic acids, (ii) diphenols, and (iii) phthalic acids. Specifically disclosed compounds include C.sub.2 -C.sub.3 alkylene diamine-complexed zinc salts of thiodiphenol and sulfonyldiphenol, and ethylene diamine-complexed salts of phthalic, isophthalic and terephthalic acids. Such amine-complexed zinc salts have utility as corrosion inhibitors in coating compositions for metallic substrates, e.g., paints based on alkyds, latexes or linseed oil. Also disclosed are anticorrosion additives, comprising the aforementioned amine-complexed salts distended on mineral fillers such as kaolin, and a method of making same by reaction of zinc oxide, amine, and organic diacid, at elevated temperatures, in an aqueous slurry of the mineral filler. At least the dicarboxylic acid and diphenol derived salts also display utility as inhibitors of marine growth (algae and barnacles) on substrates.
Abstract: The hardness and microstructure of aluminous abrasives produced from alumina gels are enhanced by introduction of seed material as by wet vibratory milling of the material with alumina media, or by the direct addition of very fine alpha alumina particles in the amount of 1% or less.
Type:
Grant
Filed:
October 19, 1984
Date of Patent:
November 18, 1986
Assignee:
Norton Company
Inventors:
Thomas E. Cottringer, Ronald H. van de Merwe, Ralph Bauer
Abstract: A heated automobile backlight having a dark colored electroconductive grid. The composition includes silver powder, a glass frit such a lead borosilicate frit, and reducing agents such as stannous sulfate and chromic oxide.
Abstract: A low cement refractory gun mix is disclosed. The gun mix comprises a coarse refractory portion having a particle diameter of at least 74 microns and a fine powder portion having a particle diameter of at most 74 microns. The gun mix is prepared by forming the fine powder portion into a slurry and deflocculating it prior to mixing it with the coarse refractory portion rather than deflocculating it when it is introduced into a spray gun. The gun mix has an extremely low cement and water content. Accordingly, a sprayed deposit of high packing density can be obtained which is equal in quality with deposits produced by vibration molding or casting. The gun mix is appropriate for use in forming the entire work lining of containers for molten metal.
Abstract: A composition for forming electroless plating on ceramics which comprises (i) 1 weight part of at least one member selected from the group consisting of organic palladium compounds and organic silver compounds, (ii) 0.1 to 200 weight parts of at least one member selected from the group consisting of organic metal compounds, (iii) 10 to 1000 weight parts of an organic solvent and optionally (iv) 1 to 500 weight parts of at least one member selected from the group consisting of high molecular compounds and particulate inorganic substances.
Abstract: A fibrous composite material useful in contact with fused aluminum or aluminum alloys is disclosed. The composite material is comprised of alumino silicate-based ceramic fibers, at least one micaceous mineral, an inorganic binder, a dispersant and a plasticizer.
Abstract: A metal powder pigment of this invention is obtained by treating the metal powder with an organic titanate having the general formula:Ti(OR).sub.2 [OC.sub.2 H.sub.4 N(C.sub.2 H.sub.4 OH).sub.2 ].sub.2wherein R is alkyl group of 1 to 8 carbon atoms. The treatment of the metal powder with the organic titanate may be carried out in existence of a coupling agent and/or a basic substance. The metal powder pigment treated with the organic titanate and, if desired, the coupling agent and/or the basic substance is useful for coating many types of articles including plastic articles and suitable for application by electrostatic spraying.
Abstract: The present invention provides a method and composition for preserving wood and other cellulose based materials against destructive organisms responsible for rot and decay, namely fungus and insects. The composition comprises an aqueous ammoniacal solution of a preservative metal compound and an organic acid selected from the group consisting of aliphatic dicarboxylic acids containing 2-10 carbon atoms per molecule, aliphatic mono, di or tricarboxylic hydroxy acids containing 2-6 carbon atoms per molecule or a mixture of these acids and/or their salts. The preservative composition may be applied by dipping, soaking, spraying, brushing or by any other well known means including vacuum and/or pressure applications.
Type:
Grant
Filed:
May 22, 1985
Date of Patent:
November 11, 1986
Assignee:
Osmose Wood Preserving Co. of America, Inc.
Abstract: Pigments or extender pigments the surface of which are uniformly coated with hydrogenated lecithin or with the reaction product of hydrogenated lecithin and a metal salt; and a composition for make-up cosmetics containing such pigments or extender pigments and exhibiting excellent protection for the skin, resistance to wear, and good water repellency.
Abstract: A solvent mix can be used to improve the protection offered by zinc-based paints. This method of improving zinc-based paints' protection affords an additional factor for the enhancement of coating protection.
Abstract: A dry clay product useful as a filler in organic solvent-based paints and water-based paints to impart improved gloss to dried films of the paints and in paper coatings to improve the gloss of paint films and paper coatings and to improve gloss ink holdout in paper coatings and comprising a mixture of a major amount of kaolin clay particles and a minor amount of a nonionic surfactant compatible with water and oil and having an HLB value in the range of 3 to 15. Methods of making the novel clay product and coating materials including paints and paper coatings containing same.
Abstract: Copper may be deposited non-electrolytically from a composition comprising copper ions, a complexor to keep the copper ions in solution, and glyoxylate ions as a reducing agent. The use of formaldehyde is therefore avoided.
Abstract: A coating composition especially suitable for a machinable aluminum-filled coating possessing improved salt corrosion and oxidation resistance having a liquid binder which comprises phosphate ions and ions of the group of chromate or molybdate ions, and an atomized aluminum powder having an average particle size (as expressed in terms of the median equivalent spherical diameter (ESD)), that is greater than at least 15 .mu.m, and having a size distribution such that at least about 5% of the particles by weight are retained on a 325 mesh screen, and the coatings and parts formed therewith.
Abstract: Transparent silicone compositions for treating nonporous substrates to impart antifog properties thereto comprising an aqueous solution containing hexamethylcyclotrisiloxane, an aliphatic alcohol and a surfactant.
Type:
Grant
Filed:
October 7, 1985
Date of Patent:
October 7, 1986
Assignee:
Stauffer Wacker Silicones Corporation
Inventors:
Albert J. Sanders, Jr., Michael J. Larson
Abstract: The present invention provides an improved lining structure composition on the inner surface of a tundish by forming an alumina-silica-base intermediate lining layer over which a magnesian surface coating layer is formed by gunning. It solves the adhesion defect on a refractory lining of the tundish and enables longer operation of the tundish.
Abstract: A carbon paste for self-calcining electrodes, refractory linings and connections of electrode joining points contains as binder bitumen comprising 70-90 wt-% hard bitumen and 10-30 wt-% soft bitumen. To increase the dry residue of the bitumen and to improve the burning-off properties of the mass, 0.3-2 weight percent of additives can be added, in particular Al, Al.sub.2 O.sub.3, B, B.sub.2 O.sub.3, Si and/or SiO.sub.2. The production of the carbon paste is such that the solid fraction is mixed at 130.degree.-180.degree. C. to a homogeneous mass then the hard bitumen, followed by the soft bitumen added slowly in a highly fluid form accompanied by intensive stirring. The paste is then intensively mixed further and cooled after removing from the mixer.
Type:
Grant
Filed:
March 4, 1985
Date of Patent:
September 23, 1986
Assignee:
Swiss Aluminium Ltd.
Inventors:
Ludwig Forster, Alois Franke, Reinhard Nobel
Abstract: This invention relates to a corrosion inhibitor for protecting metallic surfaces which are in contact with water, in particular circuits, apparatus and devices which use water as energetic or thermic fluid, said corrosion inhibitor being a fluorophosphate compound selected from the group consisting of:(i) compound of the formula M.sub.2.sup.I PO.sub.3 F, xH.sub.2 O(ii) compound of the formula LiM.sup.I PO.sub.3 F, xH.sub.2 O(iii) compound of the formula NaM.sup.I PO.sub.3 F, xH.sub.2 O(iv) compound of the formula M.sup.II PO.sub.3 F, xH.sub.2 O(v) compound of the formula M.sub.2.sup.I M.sup.II (PO.sub.3 F).sub.2, xH.sub.2 O(vi) compound of the formula M.sup.I PO.sub.2 F.sub.2, xH.sub.2 O(vii) compound of the formula M.sup.II (PO.sub.2 F.sub.2).sub.2, x H.sub.2 O(wherein M.sup.I is Na, K, Rb, Cs or HN.sub.4 ; M.sup.II is Mg, Ca, Ba, Sr, Zn, Cd, Mn, Ni or Co; and x is an integer or a fractional number comprised between 0 and 6) and(viii) mixtures thereof.
Type:
Grant
Filed:
March 25, 1985
Date of Patent:
September 23, 1986
Assignee:
Union Chimique et Industrielle de l'Ouest
Inventors:
Francis Moran, Sylvain Rocher, Louis Cot, Francis Dabosi, Michel Duprat, Jean Durand
Abstract: A corrosion-inhibiting coating composition containing(a) a film-former and(b) as the corrosion inhibitor, an effective amount of an aliphatic or cycloaliphatic mono-, di-, tri- or tetra- carboxylic acid which is substituted in its aliphatic or cycloaliphatic radical by at least one group of the formula I ##STR1## in which X is oxygen, sulfur or NH and each R independently of the others is hydrogen, alkyl, halogenoalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halogen, --CN, --NO.sub.2, --COOH, --COOalkyl, --OH or a primary, secondary or tertiary amino or carbamoyl group, R not being --NH.sub.2 in the case of a monocarboxylic acid in which X is sulfur, and also base addition salts of these compounds are useful as corrosion inhibitors.
Type:
Grant
Filed:
April 25, 1985
Date of Patent:
September 16, 1986
Assignee:
Ciba-Geigy Corporation
Inventors:
Godwin Berner, William Hoyle, James Jack
Abstract: A mineralized sodium silicate solution for the application to wood has a composition causing it to penetrate the wood and jell within the wood so as to give the wood the non-burning characteristics of petrified wood.