||Advances in Supercritical Fluid Spray Application of Low-Pollution Coatings.
Nielsen, K. A. ;
Dickson, D. J. ;
Derderian, E. J. ;
Glancy, C. W. ;
Goad, J. D. ;
||Union Carbide Chemicals and Plastics Co., Inc., South Charleston, WV.;Environmental Protection Agency, Washington, DC.
Spray coatings ;
Environmental chemical substitutes ;
Air pollution control ;
Carbon dioxide ;
Supercritical flow ;
Gaseous wastes ;
Organic compounds ;
Hazardous materials ;
Pollution regulations ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The volatile organic compound (VOC) content of coating formulations, which causes ozone formation in the environment, has now been reduced up to 80% by using supercritical carbon dioxide to replace volatile organic solvents in conventional coating formulations. Toxic solvents classified as hazardous air pollutants by the Clean Air Act can be totally eliminated. The concept can also be applied to high-solids coatings (1) to further reduce VOC emissions and (2) to improve coating performance by using higher molecular weight polymers. Commercial fluid delivery equipment and spray guns are now available. The technology is being demonstrated on industrial spray lines.
||Sponsored by Environmental Protection Agency, Washington, DC.
||%AUT:K. M. /Perry ;G. C. /Ross
||Reprint: Advances in Supercritical Fluid Spray Application of Low-Pollution Coatings.
||68A; 71E; 71Q
||PC A03/MF A01