Abstract: A method of preparing a novel electromagnetic wave attenuating composition comprising forming a curable film forming coating composition and thereafter dispersing an effective amount of an electrically conductive additive in said curable film forming composition under low shear conditions to form said electromagnetic wave blocking composition.

Abstract: A single package, air dry waterborne primer system which contains limited amounts of trace elements and offers corrosion resistance.

Abstract: Acrylic copolymer solutions having a T.sub.g less than 0.degree. C., a weight average molecular size ranging from about 20,000 to about 50,000 and consisting essentially of about 4-14% ethylenically unsaturated acid, about 80-95% methyl acrylate and/or ethyl acrylate and about 1-8% lower alkyl methacrylate are obtained by copolymerizing the comonomers in the presence of an organic solvent which functions as a chain terminator. Water-borne, heat-curable, internal can coating compositions may be prepared by formulating these acrylic copolymer solutions with aqueous ammonia and a water-dispersible, cross-linking reagent.