Nonpolluting Coatings and Coating Processes : Proceedings of an ACS Symposium Held August 30–31, 1972, in New York City

Ecological requirements are forcing a change in tech­ nology of industrially applied coatings. At present sol­ vent-borne coatings dominate this field but in the next few years rapidly increasing use will be made of aqueous coatings, electrocoating, solvent-free liquid coatings which can be cured by U. V.-light or electronbeam, and powder coatings. This monograph describes some recent developments in these new "non-polluting" coating technologies. It is impossible to predict how big a share each of these novel coatings will take from the conventional in­ dustrial finishes market which at present represents an annual volume of about one billion dollars. In all likeli­ hood each will find its own specialized use. We hope that this monograph will help the reader to form a perspective of the various novel coatings, their method of application, their advantages and their limitations. J. L. Gardon Joseph W. Prane Rahway, N. J.,and Elkins Park, Pa. October 15, 1972 v CONTENTS Status of Air Pollution Control Regulations........... 1 Francis Scofield Physical Characterization of Water Dispersed and Soluble Acrylic Polymers........................... 5 William H. Brendley, Jr. and Thomas H. Haag Methylated Urea Formaldehyde Cross-Linking Agents in Aqueous Emulsions............................... 25 Leonard J. Calbo Polymer Parameters Affecting Aqueous Topcoat Systems. • . . . . . . . . . • . . . . . . • . . . . . . . . . • . • . . . 35 . • . . . . . . . . Front Matter....Pages i-viii Status of Air Pollution Control Regulations....Pages 1-3 Physical Characterization of Water Dispersed and Soluble Acrylic Polymers....Pages 5-23 Methylated Urea Formaldehyde Cross-Linking Agents in Aqueous Emulsions....Pages 25-34 Polymer Parameters Affecting Aqueous Topcoat Systems....Pages 35-43 Performance Characteristics of a Fast Curing Acrylic Resin in Electrocoating Paints....Pages 45-56 Electrodeposition Systems: Composition, Characteristics, Performance and Maintenance....Pages 57-67 Ultrafiltration of Electrocoating Systems....Pages 69-81 Quantitative Prediction of Recycling Efficiency of Electrocoating Paint Solids Through Ultrafiltrate Rinse....Pages 83-91 Gas Chromatographic Determination of Amine Solubilizers and Hydroxyl-Containing Solvents in Electrocoat Systems....Pages 93-107 The Ultraviolet Curing of Coatings....Pages 109-133 The Ultraviolet Cure of Solventless Resins — A Pollution Free Method?....Pages 135-147 Some Fundamental Aspects of the Polymerization of Vinyl Monomers with Electron Beams....Pages 149-168 The Present Status of Electron Beam Curing of Coatings....Pages 169-178 Electron Beam Processor Technology....Pages 179-193 Electron Beam Curing — A Non-Polluting System....Pages 195-206 Production Systems for Electrostatic Spray Application of Powder Coatings....Pages 207-224 Electrostatic Powder Coating — Potentially a Pollution Free Finishing Method....Pages 225-234 Measurement of Opacity and Coverage in Thin-Film Powder Coatings....Pages 235-249 Flow at the Interfaces of Powder Coatings....Pages 251-269 Back Matter....Pages 271-272 Ecological requirements are forcing a change in techƯ nology of industrially applied coatings. At present solƯ vent-borne coatings dominate this field but in the next few years rapidly increasing use will be made of aqueous coatings, electrocoating, solvent-free liquid coatings which can be cured by U.V.-light or electronbeam, and powder coatings. This monograph describes some recent developments in these new "non-polluting" coating technologies. It is impossible to predict how big a share each of these novel coatings will take from the conventional inƯ dustrial finishes market which at present represents an annual volume of about one billion dollars. In all likeliƯ hood each will find its own specialized use. We hope that this monograph will help the reader to form a perspective of the various novel coatings, their method of application, their advantages and their limitations. J.L. Gardon Joseph W. Prane Rahway, N.J., and Elkins Park, Pa. October 15, 1972 v CONTENTS Status of Air Pollution Control Regulations ... 1 Francis Scofield Physical Characterization of Water Dispersed and Soluble Acrylic Polymers ... 5 William H. Brendley, Jr. and Thomas H. Haag Methylated Urea Formaldehyde Cross-Linking Agents in Aqueous Emulsions ... 25 Leonard J. Calbo Polymer Parameters Affecting Aqueous Topcoat Systems." ... ..." ..." ... ..." ." ... 35 ." ...