Rubber and plastic formulations and process

Claim 1

IN A PROCESS FOR COMPOUNDING RUBBER FORMULATIONS AT ELEVATED TEMPERATURE INCLUDING A MIXTURE OF INGREDIENTS, AN AMOUNT OF RESIDUAL MOISTURE AND A CURING ACCELERATOR CONTAINED WITHIN THE PORES OF A FIRST CRYSTALLINE ZEOLITIC MOLECULAR SIEVE, THE IMPROVEMENT THEREWITH OF ADDING TO SAID MIXTURE DURING THE COMPOUNDING THEREOF AN ACTIVATED SECOND CRYSTALLINE ZEOLITIC MOLECULAR SIEVE HAVING PORES SUFFICIENTLY LARGE TO ADSORB THE MOISTURE BUT SMALLER THAN THE FIRST MOLECULAR SIEVE, AND IN AN AMOUNT SUFFICIENT TO PREFERENTIALLY ADSORB AND RETAIN SUBSTANTIALY ALL OF AND ONLY SAID RESIDUAL MOISTURE DURING SAID COMPOUNDING, SAID CURING ACCELERATOR BEING RELEASED FROM THE FIRST MOLECULAR SIEVE DURING SAID COMPOUNDING.