Aerosol spray dispenser
In 1939, American Julian S. Kahn received a patent for a disposable spray can,[5][6] but the product remained largely undeveloped.It was a hand-sized steel can charged with a liquefied gas under 75 pounds of pressure and a product to be expelled as a mist or a foam.[10] Pressurized by liquefied gas, which gave it propellant qualities, the small, portable can enabled soldiers to defend themselves against malaria-carrying mosquitoes by spraying inside tents and airplanes in the Pacific during World War II.Frank Sherwood Rowland and Mario J. Molina proposed that chlorofluorocarbons, used as propellants in aerosol sprays, contributed to the depletion of Earth's ozone layer.[13] In response to this theory, the U.S. Congress passed amendments to the Clean Air Act in 1977 authorizing the Environmental Protection Agency to regulate the presence of CFCs in the atmosphere.[15] In 1985, Joe Farman, Brian G. Gardiner, and Jon Shanklin published the first scientific paper detailing the hole in the ozone layer.Nitrous oxide and carbon dioxide are also used as propellants to deliver foodstuffs (for example, whipped cream and cooking spray).Liquid aerosol propellant filling machines require additional precautions, such as being mounted externally to the production warehouse in a gas house.The main benefit of this system is that it eliminates gas permeation and assures separation of the product from the propellant, maintaining the purity and integrity of the formulation throughout its consumer lifespan.[23] Among its many benefits, the bag-in-can system extends a product's shelf life, is suitable for all-attitude, (360-degree) dispensing, quiet and non-chilling discharge.A 2K aerosol can increase solid contents and deliver high-performance polymer products, such as curable paints, foams, and adhesives.
Thermobaric weaponaerosolLyle GoodhueErik RotheimNorwegian kronerPosten NorgeSecretary of AgriculturemalariamosquitoesPacificWorld War IIRobert H. AbplanalpFrank Sherwood RowlandMario J. Molinachlorofluorocarbonsozone layerU.S. CongressClean Air ActEnvironmental Protection AgencyUnited Nations Environment ProgrammeJoe FarmanBrian G. GardinerJon ShanklinVienna ConventionMontreal Protocolcompressed gaspressure vesselgas cylindersboiling pointroom temperatureequilibriumatmospheric pressuremisciblegas dustersfreeze sprayshaloalkanehydrocarbonspropanebutaneisobutaneDimethyl ethermethyl ethyl etherflammableNitrous oxidecarbon dioxidewhipped creamcooking sprayasthma inhalershydrofluoroalkanesHFA 134aHFA 227hydrofluoroolefinglobal warming potentialfemaletinplatecrimpedAluminium cansSpray bottleSqueeze bottleCCL IndustriesCrown Holdingsviscoushair gelscreamslotionsfood spreadssealantsmolecular weightmonomeroligomerfunctionalizedpolymercross-linkedcurablepaintsadhesivesCanned airinhaledintoxicationinhalant abuseAerosol burnbenzenehazardous wasteUKCA markingGreat BritainAerosol paintFabricanGraffitiSilly StringSpray nozzleGolden PressPopular MechanicsHearst MagazinesBibcodeABC NewsPackagingActive packagingChild-resistant packagingContract packagerEdible packagingModified atmosphere/modified humidity packagingOverpackagingPackage deliveryPackage pilferagePackage testingPackage theftPackaging engineeringResealable packagingReusable packagingReuse of bottlesShelf lifeShelf-ready packagingShelf-stableSustainable packagingTamper-evidentTamper resistanceWrap rageAlternative wine closureAmmunition boxBanana boxBeer bottleBox wineCase-ready meatCoffee bagCosmetic packagingCurrency packaging