| abstract |
PROCEDURE FOR THE FORMATION OF SEALING JOINTS IN CONTAINERS, USING SEALING CAPS MADE OF HIGH MELTING POINT OLEFINIC POLYMERS. THROUGH THE INTRODUCTION OF A VINYL CHLORIDE RESIN PLASTISOL IN THE JOINT FORMATION AREA, AND WITH THE APPLICATION OF MICROWAVE ENERGY UNTIL THE PLASTISOL FULLY COOLS, IT IS GIVEN THAT WHEN COOLING THE PLASTISOL THE JOINT IS FORMED. THE FUNDAMENTAL CHARACTERISTIC TO BE GATHERED BY THE METAIAL OF THE CLOSING CAP IS THAT THE HIGH-FUSION POINT OLEFINIC POLYMER MUST BE TRANSPARENT TO MICROWAVE RADIATION AND THE MAXIMUM TEMPERATURE THAT SAID MATERIAL HAS REACHED IN THE FORMATION OF THE JOINT BE LOWER, BY AT LEAST 5 DEGREES, THAN THE FUSION. THERE ARE SEVERAL ALTERNATIVES ORIGINATED BY THE COMPOSITION OF THE MATERIALS USED AND BY THE HEATING SYSTEM USED. THE PROCEDURE APPLIES, PREFERENTIALLY, TO THE CLOSURE OF BOTTLES. |