Abstract: Coating compositions comprising aluminum pigment, neoprene latex asphalt emulsion, at least one surfactant for reducing reaction of the aluminum pigment with water and with the neoprene latex, at least one organic solvent, and water. The compositions are formed by providing an aluminum pigment mixture comprising aluminum pigment, the surfactant and the organic solvent, providing an aqueous neoprene latex asphalt emulsion and mixing the pigment mixture and the aqueous neoprene latex asphalt emulsion to form the coating composition. The compositions are suitable for coating a variety of surfaces, particularly roof structures and the like.

Abstract: A method for producing a dispersible xanthan gum product comprising the steps of:(a) adding base to xanthan gum particles to increase the pH of the particles to between about 7 and about 9.5;(b) reacting the base with the xanthan gum particles for a time period sufficient to allow the base to fully penetrate the xanthan gum particles;(c) adding glyoxal to said basic xanthan gum particles;(d) maintaining said reactants for a period of time sufficient to allow the glyoxal to homogeneously permeate the xanthan gum particles; and(e) adding acid to said reactants to enable the formation of hemiacetal linkages between the glyoxal and the xanthan gum particles;and the product produced thereby is disclosed.