Soap-synthetic bar

Claim 1

A MILLED DETERGENT BAR CHARACTERIZED BY GOOD LATHERING PERFORMANCE AND A REDUCED TENDENCY TO CRACK AND SMEAR DURING USE, CONSISTING ESSENTIALLY OF A HOMOGENEOUS MIXTURE OF (1) A WATER-SOLUBLE, NORMALLY SOLID SYNETHIC DETERGENT THAT IS A POTASSIUM SALT OF AN ALKYL SULFURIC ACID CONTAINING AN ALKYL RADICAL OF FROM 10 TO 22 CARBON ATOMS, (2) A WATER-SOLUBLE, NORMALLY SOLID ALKALI METAL SOAP, (3) A HYDRATED MAGNESIUM SOAP, AND (4) AN ALKALI METAL SALTING-OUT ELECTROLYTE SELECTED FROM THE GROUP CONSISTING OF CHLORIDE, SULFATE AND CARBONATE SALTS, THE RATIO OF SYNTHETIC DETERGENT TO TOTAL SOAP BEING ABOUT 6:1 TO 0.3:1, THE MAGNESIUM SOAP CONSTITUTING FROM 15% TO 85% OF THE TOTAL SOAP, THE REMAINDER OF THE SOAP BEING ALKALI METAL SOAP, AND THE AMOUNT OF SALTING-OUT ELECTROLYTE, CALCULATED AS SODIUM CHLORIDE, BEING FROM ABOUT 5% TO 30% OF THE SUM OF SYNTHETIC DETERGENT PLUS ALKALI METAL SOAP, AND SUCH THAT A WATER RESISTANT PHASE IS FORMED AT THE SURFACE OF THE BAR WHEN SAID BAR IS CONTACTED WITH WATER, THE MOISTURE CONTENT OF THE FINISHED BAR IMMEDIATELY AFTER MILLING BEING ABOUT 8%.