Propellant of reduced combustibility
AssigneeVon Treu AG
InventorAugustinus J. M. Wittenhorst
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Abstract
There is provided a propellant of reduced combustibility for aerosols comprising at least one liquified hydrocarbon of the group of propane, butane and isobutane and containing in all 2 to 20 weight % of at least one hydrocarbon of the group of dichloromethane and 1,1,1-trichloroethane. There can also be added various inert or flame retarding materials. There is further disclosed a process for preparing the propellant and an apparatus for carrying out the process.
Claims5
A propellant for aerosols free from fluorochlorohydrocarbons and having reduced combustibility having as the predominant component at least one liquified hydrocarbon of the group consisting of propane, isobutane and butane, 2 to 20 weight % of at least one chlorohydrocarbon of the group consisting of dichloromethane and 1,1,1-trichloroethane and 0.5 to 10 weight percent of an inert gas of the group consisting of carbon dioxide, nitrous oxide and noble gases based on the total amount of liquified hydrocarbon and chlorohydrocarbon.
Dependencies are inferred from the claim text.