Abstract: Stable latexes comprising polymers containing chlorpyrifos or chlorpyrifos-methyl insecticide are prepared by mixing the latex with the insecticide at temperatures of 40.degree. to less than 100.degree. C., with stirring. The polymer granules protect the dissolved insecticide from early leaching or decomposition and prolong the effect and soil penetration of the toxicant.

Abstract: A stable, aqueous composition comprising an electroconductive resin, e.g., poly (vinylbenzyl trimethyl ammonium chloride), and a latex of an organic polymer stabilized by cationic moiety is applied as a coating to a non-conductive substrate such as paper or a plastic film to provide an article having decreased surface electrical resistivity and increased resistance to organic solvents. Such compositions are particularly useful in the manufacture of electrographic printing papers.

Abstract: Fluid, stable compositions containing aqueous disperse systems of (1) anionizable material, e.g., an aqueous solution of an organic polymer having carboxylate functionality, and (2) a water-dispersible amphoteric polyelectrolyte, e.g., a copolymer of 2-aminoethyl methacrylate and methacrylic acid, reversibly coavervated by maintaining the pH of the composition at a value below the isoelectric point of the amphoteric polyelectrolyte and a value at which the disperse material contains anions. The resulting coacervate is readily redispersed by increasing the pH of the coacervate to a value above the isoelectric point of the polyelectrolyte. Such compositions are useful in warp sizing of yarns and in other coating applications.

Abstract: Fluid, stable compositions containing aqueous disperse systems of anionizable material, e.g., a latex of an organic polymer having carboxylate functionality, and a water-dispersible amphoteric polyelectrolyte, e.g., a copolymer of 2-aminoethyl methacrylate and methacrylic acid, are coacervated by maintaining the pH of the composition at a value below the isoelectric point of the amphoteric polyelectrolyte and a value at which the disperse material contains anions.