Abstract: Disclosed are novel antimony oxide flame retardant dispersions containing trivalent antimony deposited on the surface of antimony pentoxide particles, which compositions are particularly useful for providing flame retardancy to fiberglass products.

Abstract: Disclosed are a novel class of colloidal antimony pentoxide powders having improved dispersibility in polar solvents; and novel processes for preparing same, which processes include the initial step of preparing a new intermediate consisting of an antimony pentoxide/phosphoric acid sol containing at least 35% by weight of antimony pentoxide based upon the total weight of the sol.

Abstract: Polymer systems can be rendered flame retardant by adding a source of halogen and particles of antimony pentoxide that have been dried from colloidal dispersions that have been treated with certain metal ions. The properties of the polymer are conserved when the colloidal dispersion is treated with ions of metals that have insoluble antimonates before drying to form a powder.

Abstract: Disclosed herein are flatted water-reducible coating compositions of the varnish, paint or enamel types, which compositions comprise a water-miscible film forming resin, water as the predominant solvent and a particulate finely-divided silica flatting agent. The method of the invention involves the initial production of a mill paste formulation containing the film forming resin followed by a let-down step employing water as the predominant solvent. The silica flatting agent is introduced into the composition as an aqueous dispersion thereof during or after said let-down step.