Process for vulcanizing mixes comprising amorphous linear copolymers and acid fillers

Claim 1

A PROCESS FOR VULCANIZING AN AMORPHOUS LINEAR COPOLYMER OF ETHYLENE AND PROPYLENE IN ADMIXTURE WITH ACID FILLERS, WHICH PROCESS COMPRISES FIRST MIXING AT FROM 100* TO 160*C. THE COPOLYMER WITH AN ACID FILLER SELECTED FROM THE GROUP CONSISTING OF SILICA, CHANNEL CARBON BLACK, AND CLAY TO FORM A FIRST MIXTURE, THEN INCORPORATING IN THE FIRST MIXTURE FROM ABOUT 3% TO 10% OF A SECOND MIXTURE OF TWO BASIC SUBSTANCES A AND B, WHERE A IS AN INORGANIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM OXIDE AND LEAD OXIDE AND B IS AN ORGANIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF DIPHENYL GUANIDINE, AND A CONDENSATION PRODUCT OF AMMONIA, FORMALDEHYDE AND ETHYL CHLORIDE, THE RATIO FO A TO B IN SAID SECOND MIXTURE BEING ABOUT 2 TO 1, WORKING THE RESULTING MASS FOR A TIME BETWEEN 5 MINUTES AND 20 MINUTES AND THEN INCORPORATING AT FROM 5* TO 50*C. IN THE MASS FROM 0.5 TO 10% BY WEIGHT BASED ON THE WEIGHT OF THE COPOLYMER OF AN ORGANIC PEROXIDE AND FROM 1.5 GRAM ATOMS OF SULPHUR PER MOLE OF ORGANIC PEROXIDE AND FINALLY HEATING THE MASS OF VULCANIZATION TEMPERATURE.