| abstract |
A POWDER COATING COMPOSITION WHOSE PRINCIPAL INGREDIENTS ARE (A) A COPOLYMER OF GLYCIDYL ACRYLATE OR GLYCIDYL METHACRYLATE AND AN ETHYLENICALLY UNSATURATED COMPOUND, (B) A DICARBOXYLIC ACID CROSS LINKING AGENT, AND (C) OTHER SUITABLE MATERIALS SUCH AS A PIGMENT, A FLOW CONTROL AGENT, A CATALYST AND SUCH, IS MANUFACTURED BY A PROCESS WHICH INCLUDES THE FOLLOWING GENERAL STEPS. A SOLUTION OF THE COPOLYMER IN A SOLVENT IN PREPARED. A SOLUTION OF THE DICARBOXYLIIC ACID IN AN ALCOHOL HAVING A BOILING POINT IN THE RANGE OF 60*C TO 120*C. IS ALSO PREPARED. THE ALCOHOL ACTS AS A SOLVENT FOR THE ACID. THE COPOLYMER SOLUTION IS MIXED WITH THE DICARBOXYLIC ACID SOLUTION FORM AND INTERMEDIATE SOLUTION. THE OTHER SUITABLE MATERIALS FOR THE POWDER COATING COMPOSITION ARE MIXED WITH THE INTERMEDIATE SOLUTION TO FORM A FINAL SOLUTION. THE SOLVENTS ARE EVAPORATED FROM THE FINAL SOLUTION TO FORM THE POWDER COATING COMPOSITION. |