Heavy duty detergent compositions

Claim 1

AN ALKALINE CLEANING COMPOSITION WHICH IN THE FORM OF AN 0.3% BY WEIGHT AQUEOUS SOLUTION HAS A PH OF ABOUT 8 TO 12, CONSISTING ESSENTIALLY OF APPROXIMATELY BY WEIGHT, 1 TO 10 PARTS OF AN ALKALI METAL POLYPHOSPHATE, AND 1 TO 10 PARTS OF THE REACTION PRODUCT CONSISTING ESSENTIALLY OF A MIXTURE OF PRIMARY AND SECONDARY PHOSPHATE ESTERS, OF P2O5 WITH A NONIONIC SURFACE ACTIVE AGENT HAVING THE MOLECULAR CONFIGURATION OF A CONDENSATION PRODUCT OF AT LEAST 1 MOLE OF ETHYLENE OXIDE, AND UP TO AN AMOUNT SUFFICIENT TO PROVIDE SAID AGENT WITH ABOUT 95% BY WEIGHT OF COMBINED ETHYLENE OXIDE, WITH 1 MOLE OF A COMPOUND CONTAINING ABOUT 6 TO 150 CARBON ATOMS AND A REACTIVE HYDROGEN ATOM AND SELECTED FROM THE GROUP CONSISTING OF PHENOL, ALKYL PHENOLS, ALIPHATIC ALCOHOLS, FATTY ACIDS, FATTY AMINES, FATTY AMIDES, ROSIN AMINES, LONG CHAIN SULFONAMIDES, LONG CHAIN-SUBSTITUTED ARYL SULFONAMIDES, AND HIGH MOLECULAR WEIGHT MERCAPTANS, IN A RATIO OF 1 MOLE OF P2O5 FOR EACH 2 TO 4.5 HYDROXY GROUPS IN SAID NONIONIC AGENT.