Composition for aerosol dispenser consisting of two immiscible liquid phases

Claim 1

A TWO-PHASE COMPOSITION FOR DISPENSING FROM A SELF-PROPELLED LIQUID DISPENSER CONTAINER HAVING A VALVE MEMBER ASSOCIATED WITH THE TOP OF THE CONTAINER FOR DISPENSING THE CONTENTS OF THE CONTAINER INCLUDING MEANS FOR ADMIXING A LIQUID AQUEOUS PHASE WITH VAPRO FROM A TOP VAPOR PHASE PRIOR TO DISCHARGE FROM THE CONTAINER, THE COMPOSITION COMPRISING A LIQUID PHASE COMPRISING PROPELLANT LIQUID AND A LIQUID AQUEOUS PHASE TO BE DISPENSED BELOW THE LIQUID PROPELLANT PHASE; THE LIQUID PROPELLANT PHASE CONSISTING ESSENTIALLY OF A NORMALLY GASEOUS FLAMMABLE HYDROCARBON AND HAVING A DENSITY IN LIQUID PHASE SUBSTANTIALLY LESS THAN THAT OF THE BOTTOM LIQUID AQUEOUS PHASE AND BEING SUFFICIENTLY IMMISCIBLE IN THE BOTTOM LIQUID AQUEOUS PHASE SO THAT A DISTINCT LIQUID PROPELLANT RESERVOIR IS MAINTAINED ON TOP OF THE BOTTOM LIQUID AQUEOUS PHASE DURING DISPENSING, THE HYDROCARBON BEING SELECTED FROM THE GROUP CONSISTING OF ISOBUTANE, N-BUTANE, PROPANE AND MIXTURES THEREOF; THE BOTTOM LIQUID AQUEOUS PHASE COMPRISING AT LEAST ONE ACTIVE INGREDIENT TO BE DISPENSED AND A CARRIER SELECTED FROM THE GROUP CONSISTING OF WATER AND A SOLUTION OF AN ALCOHOL IN ATER IN AN AMOUNT UP TO ABOUT 85 WEIGHT PERCENT ALCOHOL, SAID ALCOHOL BEING SELECTED FROM THE GROUP CONSISTING OF ETHYL ALCOHOL AND ISPROPYL ALCOHOL; THE VOLUME TO VOLUME RATIO OF LIQUID AQUEOUS PHASE TO LIQUID PROPELLANT RESERVOIR BEING BETWEEN 1.8 AND 3:78:1.