Radiation curable resistant coatings and their preparation

摘要: A prepolymer containing unsaturated hydrocarbon groups is prepared and mixed on a roller mill with one or more acrylic ester monomers various additives to make coating formulation of desired viscosity. In general, low viscosity formulations are used for overprint varnishes, paper foil, or, pigments, certain types printing inks. Higher apply thick films panels, tiles other bodies. Thin cured hardness by brief exposure ultraviolet light. Thicker require energetic radiation such as plasma arc electron beam radiation. The prepolymers particularly useful making curable coatings the reaction products polyether polyols bis- polyisocyanates hydroxy alkenes (or methacrylic) esters, and, likewise, reactive polyamides modified dicarboxy alkenes, their anhydrides esters. small amount wax incorporated in results release characteristics similar those PTFE coatings.