Abstract: Nitrocellulose of reduced molecular weight produced from stabilized nitrocellulose in presence of a damping agent, e.g., water, by means of an absorbed dose of ionizing radiation in the range of about 1.0 to 50 megarads at ambient temperature.

Abstract: Process for the preparation of aqueous homogeneous polymer emulsion which comprises mixing, generally with agitation or under shear conditions, water, surfactant, at least one polymer, e.g., cellulosic compounds, and at least one monomer, e.g., acrylics, methacrylics, styrene, etc., the polymer being soluble in said monomer, to form a dispersion of polymer-monomer particles in water; then subjecting said dispersion to conditions such that the monomer within the particles become polymerized by free radical polymerization thereby forming a substantially homogeneous blend of at least two polymers within the particles of the emulsion. The particles have on the average a diameter of 5 microns or less.

Abstract: Process for the preparation of aqueous homogeneous polymer emulsion which comprises mixing, generally with agitation or under shear conditions, water, surfactant, at least one polymer, e.g., cellulosic compounds, and at least one monomer, e.g., acrylics, methacrylics, styrene, etc., the polymer being soluble in said monomer, to form a dispersion of polymer-monomer particles in water; then subjecting said dispersion to conditions such that the monomer within the particles becomes polymerized by free radical polymerization forming a substantially homogeneous blend of at least two polymers within the particles of the emulsion. The particles have on the average a diameter of 5 microns or less. The aqueous emulsions comprise an aqueous continuous phase and dispersed therein particles having an average diameter of up to 5 microns, the particles being substantially a homogeneous blend of a cellulosic compound e.g.

Abstract: Coating compositions comprising a blend of nitrocellulose and a copolymer of 6 to 32 percent by weight ethylene, 36 to 65 percent by weight vinyl chloride and 23 to 50 percent by weight vinyl acetate in a solvent system, the ratio of nitrocellulose to copolymer being 80:20 to 20:80. Modifying resins, e.g., sucrose benzoate, maleic acid resin, etc.; and plasticizers, e.g., tris 2,3-dibromopropyl phosphate, di(2-ethylhexyl) phthalate, etc., can be present in the compositions. The coatings possess excellent adhesion to various substrates as well as excellent hardness, toughness, low temperature flexibility and low flammability.