Abstract: Described is a liquid, partially alkoxymethylated melamine crosslinker composition having from about 2.6 to about 4.6 moles of combined formaldehyde per mole of melamine, from about 1.4 to about 4.4 moles of alkyl per mole of melamine, from about 1.3 to about 3.4 moles of NH per mole of melamine, a free formaldehyde level of less than about 0.5 weight percent based on 100 percent solids, and an N-methylol level of less than about 6.0 weight percent; processes for its preparation; a low formaldehyde emitting curable composition containing the crosslinker; as well as a method of coating a substrate and substrates so coated.

Abstract: Described is a liquid, partially alkoxymethylated melamine crosslinker composition having from about 2.6 to about 4.6 moles of combined formaldehyde per mole of melamine, from about 1.4 to about 4.4 moles of alkyl per mole of melamine, from about 1.3 to about 3.4 moles of NH per mole of melamine, a free formaldehyde level of less than about 0.5 weight percent based on 100 percent solids, and an N-methylol level of less than about 6.0 weight percent; processes for its preparation; a low formaldehyde emitting curable composition containing the crosslinker; as well as a method of coating a substrate and substrates so coated.

Abstract: Described is a liquid, partially alkoxymethylated melamine crosslinker composition having from about 2.6 to about 4.6 moles of combined formaldehyde per mole of melamine, from about 1.4 to about 4.4 moles of alkyl per mole of melamine, from about 1.3 to about 3.4 moles of NH per mole of melamine, a free formaldehyde level of less than about 0.5 weight percent based on 100 percent solids, and an N-methylol level of less than about 6.0 weight percent; processes for its preparation; a low formaldehyde emitting curable composition containing the crosslinker; as well as a method of coating a substrate and substrates so coated.

Abstract: The present invention relates to the selective extraction of rhenium metal from aqueous sulfuric acid solutions. More particularly, it relates to the selective extraction of rhenium metal from sulfuric acid leach solutions, resulting from the leaching of spent petroleum reforming catalysts, by the use of tertiary phosphine oxide extraction compounds.

Abstract: Yield of methyl-6-methoxy-1-naphthalene carboxylate is increased by reacting dimethyl sulfate with 6-hydroxy-1-naphthoic acid in organic solvent having flash point greater than 10.degree. C. and that is insoluble in water, in presence of mixed carbonates and hydroxides of alkali metal.

Abstract: A method for the extraction of lower alcohols from aqueous solutions by contacting said solutions with various phosphine oxides, in the presence or absence of alkali or alkaline earth metal salts, is disclosed.

Abstract: A method for the extraction of certain amino acids from aqueous solutions by contacting said solutions with various dithiophosphinates in conjunction with a polar diluent is disclosed.

Abstract: A method for removing halogenated hydrocarbons from water is disclosed. The method comprises contacting said aqueous solution with a phosphine oxide either alone or on a solid support.

Abstract: A process for the extraction of phenolic compounds from aqueous solutions is disclosed. The process comprises contacting said aqueous solution with an organic solution comprising at least one tertiary phosphine oxide and a high boiling organic solvent.

Abstract: 3-Nitrobenzoic acid is recovered from a mixture of 2-, 3- and 4-nitrobenzoic acids by basifying to a pH of 8-12 and then adding an acid to reduce the pH to 1.5-3.5 to precipitate the desired compound.

Abstract: N,N-Dimethylaminobenzoic acids are prepared by a two-step process of reductively alkylating nitrobenzoic acid in methanol in the presence of a palladium catalyst.

Abstract: Aryl[4,4'-bis(di-loweralkylamino)benzhydryl]-sulfones are prepared by reacting a 4-di(loweralkylamino)benzaldehyde with a di(loweralkyl)aniline and an aryl sulfinate.