The Lubrizol Corporation

William A Higgins

John S Perz

Fred E Heller

Robert E Quinn

Reed H Walsh

Stephen A DiBiase

Alan C Clark

Ralph E Kornbrekke

John Bretz

The invention relates to a process for preparing sintered shapes, comprising the steps of: (1) forming a green body from a mixture comprising a major amount of at least one inorganic powder; and one or more additives selected from the group consisting of: (A) at least one reaction product of a hydroxy compound with a carboxylic acylating agent; (B) at least one Mannich reaction product; (C) at least one hydrocarbyl-substituted amine; (D) at least one aminophenol; (E) at least one reaction product of a nitrophenol and amino compound; (F) at least one basic nitrogen-containing polymer; (G) at least one carboxylic acylating agent; (H) at least one aromatic acid or derivative thereof; (I) at least one aromatic oxime; and (J) at least one overbased or gelled overbased metal salt of an acidic organic compound provided that when the carboxylic acylating agent is a hydrocarbyl-substituted carboxylic acylating agent and the hydrocarbyl group contains less than an average of 40 carbon atoms, then the carboxylic acylating agent is a polycarboxylic acylating agent; and (2) sintering the body. Sintered shapes made from the compositions of the present invention have relatively high fired densities and grain sizes; and relatively low pore volume.

Process for preparing sintered shapes and compositions used therein

The invention relates to a method of preparing sintered shapes, comprising the steps of forming a green body from a mixture comprising (A) a major amount of at least one inorganic powder with (B) at least one reaction product of an amine other than an alkanolamine with a hydrocarbyl-substituted carboxylic acylating agent or alkylalkyleneglycolacetic acylating agent; provided the reaction product is other than an alkylene oxide treated fatty monocarboxylic amide and provided that when the hydrocarbyl-substituted carboxylic acylating agent is a nonaromatic acylating agent, then the hydrocarbyl group is other than hydrocarbyl groups having an average of about 55 to about 110 carbon atoms; and sintering the body. Sintered shapes made from the methods of the present invention have relatively high fired densities and small uniform grain sizes; and low porosity. The reaction products of the present invention help disperse the inorganic powder. These reaction products improve deagglomeration of the inorganic powder and help prevent reagglomeration of the powder.

Methods of preparing sintered shapes and green shapes used therein

Modified asphalt compositions are described which comprise

Acrylate polymer modified asphalt compositions

The present invention relates to modified non-Newtonian colloidal disperse systems exhibiting improved thickening power, particularly when diluted. These compositions are useful as high-solids, thermosetting caulks, molding compositions, extruding compositions and the like, but are particularly suitable for use as high solids thermosetting coating compositions. These coating compositions are heat-stable and sag-resistant. The compositions of this invention comprise a mixture of

Compositions containing basic metal salts and/or non-Newtonian colloidal

N-acylated aminohydrocarbyl sulfonic acids or acid derivative compositions are described which are characterized by the presence with the structure of at least one acyl, acylimidoyl or acyloxy group attached to the amino nitrogen, said groups being derived from at least one of the carboxylic acid groups contained in an interpolymer of (i) at least one vinyl aromatic monomer and (ii) at least one alpha, beta-unsaturated acid or derivative thereof. Aqueous systems also are described which comprise at least about 40% of water and the N-acylated amino hydrocarbyl sulfonic acid or salt composition of the invention. The hydrocarbyl sulfonic acid or salt compositions of the present invention are useful as emulsifiers, thickeners, dispersants, etc. in the aqueous systems, and the compositions also are useful as additives in fuels and lubricants.

Amino sulfonic acid derivatives of carboxylic acid-containing

Aqueous systems also are described which comprise at least about 40% of water and an N-acrylated amino hydrocarbyl sulfonic acid or salt composition characterized by the presence within the structure of an imido group or at least one acyl acyloxy or acylimidoyl group attached to the amino nitrogen, said groups being derived from the carboxylic acid groups contained in

Aqueous systems containing amino sulfonic acid derivatives of carboxylic

Carbonate polymer compositions are described which comprise a mixture of

Polycarbonate compositions

Polyolefin compositions are described which can be dyed by conventional dyeing techniques. Such polyolefins comprise a blend of (A) a polyolefin and (B) a dye-receptive amount of at least one metal sulfonate which is soluble in the polyolefin when melted, and which sulfonates are characterized by the formulae ##STR1## wherein R is an aliphatic group,

Dye-receptive polyolefins and polyolefin fibers

A composition comprising: (A) a non-Newtonian colloidal disperse system comprising (1) solid metal-containing colloidal particles predispersed in (2) a disperse medium of at least one inert organic liquid and (3) as an essential third component at least one member selected from the class consisting of organic compounds which are substantially soluble in said disperse medium, the molecules of said organic compound being characterized by polar substituents and hydrophobic portions; and (B) an isocyanate-terminated prepolymer.

One-component moisture curable urethane coating system

Curable compositions of matter comprising an epoxy resin and a curing agent selected from the group consisting of polyvalent metal salts of a phosphorodithioic acid, the acid being derived from the reaction of a phosphorus sulfide with a hydroxyl containing aromatic compound, and products derived from the reaction of the polyvalent metal salt with a mono- or polyamine.

Curable epoxy resin compositions

The present invention contemplates the provision of two-component urethane coating compositions comprising a first component comprising an organic polyfunctional isocyanate, and a second component comprising an acidic ester of a phosphoric acid, the alcohol portions of said acidic acid being selected from the group consisting of hydrocarbyloxy and hydroxy-substituted hydrocarbyloxy compounds, such compositions providing enhanced corrosion resistance properties as well as improved flame retardency and metal adhesion characteristics over the two-component urethane systems of the prior art. An essential ingredient in the compositions of the invention is a non-Newtonian colloidal disperse system which can be provided with either the first component and/or the second component parts of the compositions of the invention. The non-Newtonian colloidal disperse systems provided in accordance with the present invention comprise (1) solid metal-containing colloidal particles predispersed in (2) a disperse medium of at least one inert organic liquid and (3) as an essential third component at least one member selected from the class consisting of organic compounds which are substantially soluble in said disperse medium, the molecules of said organic compound being characterized by polar substituents and hydrophobic portions. The invention also relates to a method of coating a substrate comprising mixing the foregoing components and depositing the resulting composition on said substrate.

Two-component urethane coating system

Certain salts of polycarboxylic acids and amino compounds are useful as corrosion inhibitors in aqueous systems used in well-drilling operations. Typical such corrosion inhibitors are made from acids such as sebacic and azelaic acid and amino compounds such as ammonia, ethanol amine, di- and tri-ethanol amines and N,N-diethyl-ethanol amine.

Corrosion inhibition in well-drilling operations using aqueous systems

Aqueous disperse compositions capable of irreversibly forming films, comprising an internal phase of at least one film-forming, non-asphaltic, oleaginous material and an external phase comprising a clay-thickened water slurry, containing, in addition to clay, a flocculating agent are disclosed. Typical film-forming materials are made by reacting a carboxylic acid with an overbased salt of an organic acid, particularly those that have been converted into non-Newtonian colloidal disperse systems such as an alkaline earth metal sulfonate gel. Typical clays are montmorillonite-type clays and usually the composition as a whole is thixotropic. These compositions are useful, for example, as coatings for preventing corrosion of metallic surfaces.

Aqueous disperse compositions containing clay and oleaginous

Compositions suitable for use as forging lubricants, especially for hot forging, comprises an aliphatic or alicyclic organic diluent (preferably one which has a high flash point and a relatively high boiling point), graphite and non-Newtonian basic alkaline earth metal complex. The complex is preferably a grease-like or gel-like basic calcium or magnesium sulfonate or carboxylate, or mixture thereof. Basic magnesium sulfonate-carboxylates are especially preferred. These lubricants, when used in hot forging operations, are characterized by their ability to protect the forging die from welding, scoring or other deformation and by their relatively smokeless properties.

Growing community of inventors

Gates Mills, OH, United States of America

William A Higgins