PROCEDURE FOR THE PREPARATION OF A COATING OF VARIOUS LAYERS, AQUEOUS COATING COMPOUNDS, POLYACRYLATE RESINS DILUTABLE IN WATER AND PROCEDURE FOR THE PREPARATION OF POLYACRYLATE RESINS DILUTABLE IN WATER.

摘要

A PROCEDURE FOR MANUFACTURING A MULTIPLE LAYER COATING HAS BEEN INVENTED, USING A TRANSPARENT COATING COMPOSITION CONTAINING POLYACRYLATE RESIN AS A BINDER. THIS RESIN IS OBTAINED BY MIXING A NON-SATURATED ETHYLENE MONOMER CONTAINING CARBOXYLIC GROUPS (A1), WITH A MIXTURE OF METHACRYLIC ACID ESTERS, WITHOUT SATURATED MONOMERS OF ETHYLENE, OTHER THREE-THROUGH BRANCHES (ETHYLENE) ALTERNATIVELY IN PARTIAL AMOUNTS, ADDING THEM A SOLVENT AND POLYMERIZING THEM IN THE PRESENCE OF A RADICAL GENERATOR INITIATOR. THE POLYACRYLATE RESIN THAT IS BORN FROM THIS POLYMERIZATION IS NEUTRALIZED AND DISPERSED IN WATER. (A1) AND (B) ARE SELECTED IN TYPE AND QUANTITY, SO THAT THE POLYACRYLATE RESIN HAS A HYDROXYL RATE BETWEEN 40 AND 200, AN ACID RATE BETWEEN 20 AND 100 AND A SETTING TEMPERATURE (T) BETWEEN -40 CY +60 C.