Abstract: It has now been discovered that forming a shaped article from a blend of calcium hypochlorite and lime, wherein the lime content is greater than 10% by weight, based on the total weight of the shaped article, the resulting solid shaped article has a favorable dissolution (solubility) profile and the solid shaped article maintains structural integrity during use in an aqueous environment.

Abstract: It has now been discovered that forming a shaped article from a blend of calcium hypochlorite and lime, wherein the lime content is greater than 10% by weight, based on the total weight of the shaped article, the resulting solid shaped article has a favorable dissolution (solubility) profile and the solid shaped article maintains structural integrity during use in an aqueous environment.

Abstract: A method of treating algae in a body of water is disclosed. The method includes adding an amine compound to the body of water in amounts ?4 parts per million as an effective algaecide.

Abstract: Disclosed herein is a cost effective and environmentally friendly process to prepare 1-hydroxy-6-substituted pyridones from 2,6-dichloropyridine.

Abstract: A method of preparing a silicon-containing polymeric structure coated/encapsulated active ingredient is disclosed. The method has the steps of providing an insoluble active ingredient; dispersing the active ingredient in a liquid medium to form a suspension of the active ingredient; adding a silicon-containing polymeric structure precursor to the suspension; and reacting the precursor to form the silicon-containing polymeric structure. The silicon-containing polymeric structure is formed around the active ingredient, thereby forming a silicon-containing polymeric structure coated/encapsulated active ingredient. The silicon-containing polymeric structure coated/encapsulated active ingredient may be used in place of the active ingredient itself.

Abstract: It has now been discovered that forming a shaped article from a blend of calcium hypochlorite and lime, wherein the lime content is greater than 10% by weight, based on the total weight of the shaped article, the resulting solid shaped article has a favorable dissolution (solubility) profile and the solid shaped article maintains structural integrity during use in an aqueous environment.

Abstract: A method of preparing a silicon-containing polymeric structure coated/encapsulated active ingredient is disclosed. The method has the steps of providing an insoluble active ingredient; dispersing the active ingredient in a liquid medium to form a suspension of the active ingredient; adding a silicon-containing polymeric structure precursor to the suspension; and reacting the precursor to form the silicon-containing polymeric structure. The silicon-containing polymeric structure is formed around the active ingredient, thereby forming a silicon-containing polymeric structure coated/encapsulated active ingredient.

Abstract: The present invention generally relates to a novel process for preparing alkali metal pyrithione from pyridine N-oxide, using a sulfurination agent and a base agent. In particular, the present invention relates to an efficient process for preparing polyvalent metal complexes of sodium pyrithione from the alkali metal pyridine N-oxide described herein.

Abstract: A method of treating algae in a body of water is disclosed. The method includes adding an amine compound to the body of water in amounts?4 parts per million as an effective algaecide.

Abstract: The present invention generally relates to a novel process for preparing alkali metal pyrithione from pyridine N-oxide, using a sulfurination agent and a base agent. In particular, the present invention relates to an efficient process for preparing polyvalent metal complexes of sodium pyrithione from the alkali metal pyridine N-oxide described herein.

Abstract: Disclosed is a personal care composition comprising: (a) water or an alcohol, (b) at least one dispersant or surfactant, and (c) as an antimicrobial or preservative additive, particles of an in-situ transchelation reaction product of a zinc compound selected from the group consisting of zinc salts of organic acids, zinc salts of inorganic acids, zinc hydroxide, zinc oxide, and combinations thereof, said zinc compound being soluble in said water or alcohol, with pyrithione acid or a pyrithione salt that is soluble in said water or alcohol. Also disclosed is a process for preparing the personal care composition, and a coated substrate containing a coating of the personal care composition.

Abstract: The present invention relates to a method for producing submicron-sized particles of pyrithione salts, comprising reacting pyrithione or a water-soluble salt of pyrithione and a water-soluble polyvalent metal salt in a pressurized turbulent flow reactor that generates pulverizing forces, the reaction producing submicron sized particles of pyrithione salt. The present invention also relates to particles made by the above method, and products, such as shampoos, soaps, and skin care medicaments made using these particles.

Abstract: This invention relates to a process improvement for preparing a storage-stable dispersion of a biocide which comprises the steps of: (a) dispersing a solid biocide and a carrier to form a biocide concentrate, (b) heating said biocide concentrate to an elevated temperature to provide a storage stable mixture of biocide, resin and carrier, and (c) cooling said mixture under continuous stirring to provide a homogeneous, storage-stable liquid dispersion. Also claimed is the storage-stable product produced by this process.

Abstract: The present invention relates to novel 1-hydroxy-6-substituted pyridine-2-one and 1-hydroxy-6-substituted pyridine-2-thione compounds. Also disclosed is a process for producing the compound(s) and an antimicrobial composition comprising the compound(s) and at least one component selected from the group consisting of soaps, adhesives, coatings, elastomers, sealants, shampoos, skin care medicaments, cosmetics, paints and other polymer compositions.

Abstract: This invention relates to a multi-step process for preparing a storage-stable dispersion of a biocide which comprises the steps of: (a) contacting a heat-swellable resin with a carrier to provide a liquid mixture of a resin and a carrier, (b) heating said liquid mixture to an elevated temperature to cause the resin to swell by virtue of carrier absorption into the resin to provide a swelled resin in said liquid mixture, and (c) adding a biocide to said swelled resin and mixing to provide a homogeneous, storage-stable liquid dispersion.

Abstract: The present invention relates to a process for preparing 2,6-dichloropyridine which comprises reacting an organic solvent-free, catalyst-free reaction mixture comprising 2-chloropyridine and chlorine in the presence of a hydrogen chloride scavenger and ultraviolet light, and optionally in the presence of added moisture, at a temperature of between about 90.degree. C. and about 185.degree. C. Also claimed is a method for preventing calcium chloride plugging of the chlorine feed stream and for preventing calcium chloride build-up in the above reaction mixture which comprises adding moisture in the form of water or steam, or a combination thereof, to the reaction mixture prior to, or during, the reaction of said process.

Abstract: The present invention relates to novel 1-hydroxy-6-substituted-pyridone compounds. Also disclosed is a process for producing the compound(s) and an antimicrobial composition comprising the compound(s) and at least one component selected from the group consisting of soaps, adhesives, coatings, elastomers, sealants, shampoos, skin care medicaments, cosmetics, paints and other polymer compositions.

Abstract: The present invention relates to a composition comprising an antimicrobial effective amount of a biocide selected from the group consisting of aromatic 2-N-hydroxy-thiourea and N-hydroxy-quinazolinone, and derivatives and combinations thereof, and at least one component selected from the group consisting of soaps, shampoos, skin-care medicaments, cosmetics, plastics and paints. Also disclosed is a novel process for making the biocide.

Abstract: The present invention relates generally to paint and paint base and, more specifically, to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide in paint. In accordance with the process of the present invention, the paint or paint base contains a carboxylic acid in order to impart desired gelation inhibition to the paint.