Two-phase permanent antifreeze fluid

Claim 1

A TWO-PHASE PERMANENT TYPE ANTI-FREEZE LIQUID ADAPTED TO BE ADDED TO WATER USED IN COOLING SYSTEMS OF INTERNAL COMBUSTION ENGINES TO PROVIDE A RESULTANT COOLANT, SAID ANTI-FREEZE LIQUID CONSISTING ESSENTIALLY OF A WATER-MISCIBLE POLYHYDRIC ALCOHOL FREEZING POINT DEPRESSANT AS THE PREDOMINATING CONSTITUENT CONTAINING A SMALL AMOUNT OF CORROSION INHIBITOR DISSOLVED THEREIN AND CONSTITUTING A FIRST PHASE, AND 0.90-1.25% BY VOLUME BASED ON SAID FIRST PHASE OF AN ANTI-FOAM MIX INSOLUBLE IN SAID POLYHYDRIC ALCOHOL AND CONSTITUTING A SECOND PHASE, SAID ANTI-FOAM MIX CONSISTING ESSENTIALLY OF A FOAM INHIBITING AMOUNT UP TO 15% BY WEIGHT OF A SILICOME HAVING ANTIFOAM PROPERTIES HOMOGENEOUSLY DISPERSED IN HEAVY HYDROCARBON LIQUID HAVING A SPECIFIC GRAVITY SUCH THAT SAID ANTI-FOAM MIX HAS A SPECIFIC GRAVITY LESS THAN THAT OF THE SAID FIRST PHASE SO THAT IF FLOATS ON THE LATTER, AND GREATER THAN THAT OF THE COOLANT FORMED BY DILUTING THE ANTI-FREEZE LIQUID WITH WATER TO FORM A COOLANT CONTAINING AT LEAST 40% BY VOLUME OF WATER SO THAT THE ANTI-FOAM MIX SETTLES IN THE COOLANT ON STANDING.