A CONCENTRATE SPENDER AND PROCEDURE FOR THE RECOVERY OF THE SPENDER

摘要

1365298 Pressurized dispensing containers WILKINSON SWORD Ltd 5 Nov 1971 [12 Nov 1970] 53794/70 Heading F1R In a pressurized dispensing container the propellant is in part dissolved in a "reservoir" comprising an organic substance either solid or enveloped in a gas pervious solid material so that the vapour pressure is less than that of the pure propellant, the substance releasing propellant as the container is emptied. The organic substance may form part of the container or be supported therein or comprise one or more discrete masses therein. In one embodiment the solution is mobile and is supported in a capsule pervious to gaseous propellant, mounted on the dip tube. A number of examples e.g. rubbers, of suitable organic substances are given.