Abstract: Magnesium alloys are treated in a hydrogen atmosphere containing water vapor at an elevated temperature to enable hydrogen to diffuse into the alloy surface, the proportion of water vapor in the atmosphere being reduced during exposure. The alloy may be treated with chromic acid before exposure to increase the degree of penetration.

Abstract: An article is provided with improved resistance to hot corrosion through a coating on a metal surface based on an element selected from Fe, Co and Ni, the coating comprising a filled matrix bonded by interdiffusion with the substrate. The matrix is applied by impinging on the substrate metal surface a plurality of heated metallic particles, such as by plasma spraying. The coating includes a filler metal of aluminum and preferably an alloy of aluminum and at least one other element, for example Cr, deposited on and interdiffused with the matrix, such as through a halide vapor deposition process employing a mixture of aluminum powder and other powders. As a result of application of the filler metal, there is provided from the matrix a coating layer of an alloy including an average of about 8-20 weight percent aluminum, the application process resulting in substantial recrystallization of the matrix.

Abstract: The present invention provides a member having a cutting edge with a boron-containing coating thereon, the coating being up to 600 Angstroms thick. The member may be a razor blade.The invention also provides a method of manufacturing a member having a cutting edge which includes the step of coating the cutting edge with boron to a thickness up to 600 Angstroms.

Abstract: A cosmetic composition comprises an aqueous solution of an anionic surface active agent selected from the group consisting of (a) a surface active agent of the formula ##EQU1## wherein R is selected from the group consisting of alkyl and alkenyl, each having 8 to 22 carbon atoms and alkylphenyl having 12 to 22 carbon atoms;X and X' are each selected from the group consisting of oxygen, sulfur and sulfoxide;A is selected from the group consisting of ethylene, propylene and butylene;A' is selected from the group consisting of --C.sub.2 H.sub.3 (CH.sub.2 OH)-- and --CH.sub.2 CHOH--CH.sub.2 --;A" is selected from the group consisting of --CH.sub.2 CHOH--CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 -- and --CH.sub.2 CH(CH.sub.

Abstract: Disclosed is a composition and method for its use to improve the corrosion resistance of conversion-coated metal surfaces. The composition contains a myo-inositol phosphate ester or soluble salt thereof and is applied as a rinse of the conversion coating.

Abstract: An article comprising a substrate body having a surface coated with a film of a resin having incorporated therein a hydrolyzed metal complex which has adsorbed thereon a metal or metal ion which is a catalyst for the deposition of a metal from an autocatalytic type metal plating bath. The article may also include a film of plated metal.

Abstract: Improved drycleaning results (when compared on the International Fabricare Institute rating scale of cleaning/greying ratios) are obtained by the addition of up to one ounce per gallon of drycleaning solvent of a 1-hydroxyethyl-2-fatty acid imidazoline and "free" water (water added after an emulsion of water and detergent is formed in the drycleaning bath).

Abstract: Metal treating compositions, containing hexavalent-chromium-providing substance and pulverulent zinc, and which find particular utility in the coating of metal substrates prior to painting, now exhibit extended bath stability through pH control. The key to the control is achieved during preparation of precursor components. Such components of controlled, or adjusted, pH are then blended together to form a bath of excellent stability e.g., extended freedom from gelation.

Abstract: A clear liquid synthetic organic heavy duty laundry detergent composition for use with an oxidizing bleach such as chlorine bleaches comprising a non-ionic and anionic biodegradable synthetic organic detergent system, water, an alcohol and at least one oxidizing bleach stable brightening agent selected from 4,4'-Bis(4-phenyl-1,2,3-triazol-2-yl)-2,2'stilbene disulfonic acid and salts thereof, 4,4'-diphenylvinylene-2,2'biphenyl disulfonic acid, and salts thereof. Small proportions of various additional optional agents such as sequestering agents and saltforming bases may also be included in the composition which is a single phase clear stable liquid which can be made opaque, creamy or opalescent if desired. The composition furthermore is substantially neutral or only slightly alkaline when measured at a 1% concentration in water and cleans and brightens soiled laundry to a degree comparable to that utilizing phosphate built alkaline detergents.

Abstract: To produce resisting metal coatings containing at least one brazing metal surfaces formed of titanium or another refractory metal having at least one volatile halide, a coating of this halide of the brazing metal is applied to this surface, this halide being stable in the isolated state and when applied to the surface, the halogen of the said halide being able to form the volatile halide with the refractory metal; the surface thus coated is heated to a temperature which is sufficient to permit the reaction of the metal halide with the refractory metal to form the volatile halide, which escapes and to form the metal coating, bounded by diffusion of the brazing metal to the surface of the refractory metal.

Abstract: Low temperature aluminum diffusion is more uniform when effected with a pack energized by aluminum chloride or other material that does not generate nitrogen, and gives food protection against marine corrosion of steels, and particularly when there is a chromate-type coating applied over the aluminizing. Highly effective chromate-type coating mixture consists essentially of aqueous solution of chromic and phosphoric acid also containing magnesium salts of said acids and dispersed polytetrafluoroethylene particles. Such coating mixture is best applied over porous pre-coating of colloidal inert particles. Aluminized superalloy can be heated in air to whiten it, then cleaned to give product having more ductile case. Such coated superalloy can also be stripped of coating by aqueous HNO.sub.3 --HF--CrO.sub.3 bath.

Abstract: A method of forming an electrophotographic coating which includes preparing a mixture which comprises finely divided photoconductive material dispersed in an organic resin binder. The resin, which exhibits an acid value of at least 3, or a hydroxyl value of at least 15, is heat-treated for a time and temperature enclosed within the area ABCDEFGH of the temperature-treating diagram shown in the accompanying drawing. Following this treatment, the mixture is dissolved in a volatile solvent for the binder resin, and the dispersion is coated onto a conductive backing to form a substantially uniform layer.

Abstract: Insulative coatings for electrical steels having improved resistance to deterioration during stress relief anneals or other heat treatments carried on in reducing atmospheres. They may be produced by coating electrical steel with an aqueous solution of phosphoric acid, magnesium oxide and one or more additional mineral acids present in an amount sufficient to adjust the pH level of the solution to from about 0.5 to about 3.0. The mole ratio Mg/PO.sub.4 should be from about 0.6 to about 1.5.

Abstract: Chromium is passivated by forming a chromium oxide layer thereon by heating at temperatures of about 450.degree.C in an atmosphere containing oxygen. While useful, per se, the process finds particular application as an integral part of overall processing schemes where thermal cycles are used.

Abstract: A contact fuser assembly for use in a electrostatic reproducing apparatus including an internally heated fuser roll structure comprising a rigid or non-deformable thermally conductive core capable of interacting with a release material applied thereto in such a manner as to form a thermally-stable interfacial coating intermediate the surface of the core and a release coating comprising portions of the release material. The interfacial coating strongly adheres to the core surface and prevents toner material from contacting the outer surface of the core. The combined coatings have a sub-micron thickness and therefore represent a minimal thermal barrier to the energy being conducted outwardly by the core.

Abstract: An improved, cathode ray tube mask assembly having a dark, adherent coating and a method of forming such a coating. A clean mask assembly is treated with a hot solution of chromic and phosphoric acid to form a preliminary protective coating. The mask assembly is then baked to convert the preliminary protective coating to a final dark, very adherent coating.

Abstract: Method for providing dielectric isolation of an epitaxial layer of a compound semiconductor or for providing separation and protection of pn-junction of a compound semiconductor by applying plasma oxidation.

Abstract: Copper and copper alloys are prevented from rust by surface-treating the copper and copper alloys with at least one compound selected from the class consisting of alkylimidazoles represented by the following formula: ##SPC1##Wherein R is a long straight chain alkyl group of 5-21 carbon atoms and R' is hydrogen atom or a lower alkyl group, and their acid addition salts. The compound is used as it is, or in a solution, by dipping, spraying, coating or directly contacting with copper or copper alloy. The surface -treated copper and copper alloy can well withstand tarnishing in an atmosphere containing sulfur compound gas.

Abstract: A coating solution comprising trivalent chromium and one or more cations selected from the group consisting of manganese, bismuth, antimony tin, zinc and molybdenum is employed in a process wherein the solution is contacted with a metallic surface to form a corrosion resistant coating. The coating can be force dried or can be treated with a passivating solution.

Abstract: Herein disclosed is a metal spraying method, which comprises the steps of subjecting the surface of aluminum or aluminum alloy to zinc-substitution treatment so as to form a zinc layer in said surface, and spraying a desired metal directly on the substituted zinc layer or on a metal layer, which is formed by preliminarily spraying such a metal as has sufficient adhesion to said desired metal, so as to form thereon a metal sprayed layer.