Granular non-dusting enzyme product for detergent use

Claim 1

A PROCESS FOR MAKING AN ENZYME CONCENTRATE, FOR USE AS AN ADDITIVE TO DETERGENT COMPOSITIONS TO MAKE THEM ENZYOEACITVE, IN WHICH, ON AN ENZYME PREPARATION-SOAP-SUGAR-PRODUCT BASIS, FROM 50 TO ABOUT 90% BY WEIGHT OF A POWDERED ENZYME PREPARATION, OF PARTICLES OF DIAMETERS LESS THAN 0.15 MILLIMETER, IS DRY BLENDED WITH A MIXTURE OF A WATER-SOLUBLE GRANULAR SOAP AND A WATER SOLUBLE GRANULAR SUGAR IN A SOAPSUGAR RATIO OF ABOUT 1:5 TO 5:1, THE SOAP BEING IN FINELY DIVIDED POWDER FORM AND THE SUGAR BEING MICROPULVERIZED, AND SAID BLENDED MIXTURE IS COMPACTED UNDER PRESSURE BETWEEN OPPOSED SOLID SURFACES BY ROLL MILLING OR PRESSING TO FORM A COHERENT MASS WHICH IS THEN SIZED-REDUCED TO GRANULAR FORM, THE GRANULES OF WHICH ARE OF PARTICLES SIZES OF UP TO 40 MESH AND CONTAIN PROTEOLYTIC ENZYME PREPARATION IN AN AMOUNT SUFFICIENT TO PROVIDE A FINAL WASHING PRODUCT HAVING 0.15 TO 6 ANSON UNITS OF ACTIVITY PER HUNDRED GRAMS WHEN INCORPORATED THEREIN IN A PROPORTION CONTAINING FROM 0.11 TO 4% OF POWDERED ENZYME PREPARATION.