Abstract: The amount of carbonate mineral impurities is reduced in aqueous phosphate rock slurry by (a) conditioning the slurry with an effective amount of CO.sub.2, (b) adding an effective amount of an anionic collector to the slurry and (c) subjecting the slurry to a froth flotation process whereby the carbonate mineral impurities are concentrated in the froth. The CO.sub.2 acts to depress flotation of phosphate minerals relative to the carbonate mineral impurities.

Abstract: Certain novel bipyridine substituted compounds, their metal complexes (Cu, Fe and Ni) which are effective to improve feed efficiency and promote growth in food-producing animals, particularly ruminants. The compounds are described by the general formula ##STR1## including the cupric, nickelous and ferrous salts thereof.

Abstract: A method of controlling the growth of microorganisms by using a compound represented by the formula ##STR1## wherein R is hydrogen or methyl, R.sup.1 is hydrogen, methyl or ethyl, or R and R.sup.1 can collectively be a cyclic alkyl group of 5 carbon atoms.

Abstract: An improvement in the process of preparing wrinkle resistant textile fabrics containing cellulosic fiber wherein said fabrics are impregnated with an N-methylol durable press resin and cured. The improvement comprises adding to the durable press resin an oxazolidine or mixture of oxazolidines having the general formula ##STR1## wherein R is selected from the group consisting of H, methyl, ethyl, hydroxymethyl and hydroxyethyl.

Abstract: A high solids resinous product obtained by the process comprising reacting an unsaturated aliphatic monocarboxylic acid, one or more aromatic dicarboxylic acids or anhydride thereof, a mixture of bis- and tris(hydroxy)-alkanes and a monohydric alcohol, in the presence of catalytic amounts of dibutyl tin oxide and a solvent at a temperature of up to 430.degree. F. until the acid value is less than about 3.0, said resinous product having a non-volatile content of about 90% and a Gardner viscosity about Z.sub.1.

Abstract: A foundry core composition of foundry aggregate, a polyol component or mixture thereof, a polyisocyanate, and as a selected solvent therefor, an acetal or ketal such as butyl acetal. The compositions are suitable for use in cold box, no-bake, and rapid no-bake processes.

Abstract: The product prepared by the process consisting of the steps of (a) reacting a nitroalcohol of the formula ##STR1## where R and R.sup.1 can be hydrogen, methyl, ethyl or hydroxymethyl in about a 1:1 mole ratio with an alkylamine represented by the formula R.sup.2 NH.sub.2 where R.sup.2 is alkyl of from 1 to 4 or more carbon atoms or phenyl, benzyl, toluyl, or xylyl at about 50.degree.-70.degree. thereby effecting formation of a nitroalkylamine; (b) reacting the nitroalkylamine with nitrous acid at about 0.degree.-5.degree., thereby forming a nitroso compound; and (c) reducing the nitroso compound.

Abstract: The product prepared by the process consisting of the steps of (a) reacting a nitroalcohol of the formula ##STR1## where R and R.sup.1 can be hydrogen, methyl, ethyl or hydroxymethyl in about a 1:1 mole ratio with an alkylamine represented by the formula R.sup.2 NH.sub.2 where R.sup.2 is alkyl of from 1 to 4 or more carbon atoms or phenyl, benzyl, toluyl, or xylyl at about 50.degree.-70.degree. thereby effecting formation of a nitroalkylamine; (b) reacting the nitroalkylamine with nitrous acid at about 0.degree.-5.degree., thereby forming a nitroso compound; and (c) reducing the nitroso compound.

Abstract: A foundry core composition comprising a foundry aggregate, a resin base such as styrene-allyl alcohol copolymer or alkylene oxide derivative thereof, a polyisocyanate, and a catalyst therefor; the compositions being suitable for use in cold box, no-bake, and rapid no-bake processes.

Abstract: In a process for the production of 2-nitrobutylmorpholine from 1-nitropropane, morpholine and formaldehyde the improvement comprising mixing 1-nitropropane and morpholine, heating to about 55-60.degree. C., adding formaldehyde over about a 3-4 hour period, holding the reaction mixture at about 55-60.degree. C. for about a 2-3 hour period to make a total addition/holding period of at least six hours, cooling the reacton mixture to form a two phase oil/aqueous system and concentrating the oil layer to 2-nitrobutylmorpholine by removing excess water and 1-nitropropane.

Abstract: An acrylate modified alkyd resin obtained by the process consisting of the steps (a) forming an alkyd resin by reacting a conjugated fatty acid and an aromatic dicarboxylic acid or anhydride, and dimethylolpropionic acid with an excess of polyol, and (b) reacting the alkyd so formed with an alkyl-substituted or un-substituted acrylic acid or ester thereof or mixture thereof.

Abstract: A method of promoting the growth and improving the feed efficiency of animals using substituted quinoxalines represented by the formula: ##STR1## where R is hydrogen or lower alkyl of 1 to about 4 carbon atoms.

Abstract: A modified clay paper coating composition comprising a montmorillonite clay having at least partially hydrolyzed aluminum chloride bonded thereto is made by treating montmorillonite clay with a non-aqueous solution of anhydrous aluminum chloride following by hydrolyzing with hot water. A paper substrate coated with this composition exhibits improved image light fastness when employed in a pressure-sensitive duplication system.

Abstract: A method of controlling the growth of microorganisms by applying to them or to their habitat an imidazoline represented by the formula ##STR1## where R can be hydrogen or methyl, R.sup.1 can be hydrogen, or alkyl of 1-3 carbon atoms, R.sup.2 can be hydrogen or methyl, R.sup.3 can be alkyl of 6-10 carbon atoms and x is 1 or 2.

Abstract: A polyurethane-modified alkyd resin obtained by the process consisting of the steps (a) forming an alkyd resin by reacting an unsaturated fatty acid with an aromatic dicarboxylic acid or anhydride, and dimethylolpropionic acid with an excess of polyol, and (b) reacting the alkyd so formed with toluene diisocyanate.

Abstract: A new foundry binder composition comprises a selected phenol-formaldehyde resin, a polyisocyanate, and a selected solvent therefor. A preferred solvent is ketal or an acetal such as butyl acetal. The resole is essentially anhydrous, should contain about 8% free phenol, and is further preferably characterized by the presence of substituent --(CH.sub.2 --O).sub.n --R groups replacing a phenolic hydrogen, R being a hydrocarbon radical such as butyl. Methylene and ether bridges linking phenolic nuclei are predominantly ortho-para with some para-para bridges. Also disclosed is the admixture of a reactive polyisocyanate and a solvent such as butyl acetal.

Abstract: Water base latex compositions suitable for coating corrodible metals, such as sand blasted ferrous metal, are prepared by a process characterized by the essential steps of (1) emulsifying under alkaline conditions a film forming oxidatively curable oil or alkyd modified polyurethane, and (2) blending therewith a copolymeric or homopolymeric acrylic or vinyl acetate latex.For metal coatings or for universal coatings for both (bleeding) woods and metal, a single pigment or a combination of pigments with corrosion inhibiting characteristics can be used with the polyurethane-acrylic latex, or polyurethane vinyl latex.

Abstract: A product obtained by reacting an alkanolamine represented by the formula ##STR1## where R is methyl, ethyl or hydroxymethyl and R.sup.2 is hydrogen, methyl or hydroxymethyl, with oiticica oil at ambient temperatures or above having utility as a dispersing agent in water-based paints.

Abstract: A method is disclosed for partially resolving the components of a pentaerythritol waste liquor which contains pentaerythritol, polypentaerythritols, organic syrups, water, and an alkali metal formate which comprises acidifying the waste liquor to convert the alkali metal formate to formic acid and an alkali metal salt, adding a lower aliphatic alcohol to the acidified waste liquor to react with the formic acid to form a formate ester and to precipitate the alkali metal salt, removing the formate ester by distillation, and removing the precipitated alkali metal salt.

Abstract: A method of controlling the growth of microorganisms by applying to them or to the environment inhabited by them a compound represented by the formula ##STR1## where R can be hydrogen, methyl or ethyl and x is 1 or 2.