TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred UV Filters: These include zinc oxide and titanium dioxide.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Propellant: This is propane, butane, dimethyl ether or a fluorinated hydrocarbon.Preferred UV Filters: These include 4-t-butyl-4'-methoxydibenzoylmethane, 2-ethylhexyl 4-methoxycinnamate, methyl methoxycinnamate, 2-phenyl-5-sulfobenzimidazole, ethylhexyl triazone, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid, 3-(4-methylbenzylidene)dl-camphor, polyethoxylated p-aminobenzoates and 2-ethylhexyl 2-cyano-3,3-diphenylacrylate.Preferred Composition: Other ingredients include waxes, emulsifiers and active ingredients or additives.Preferred Oils and Waxes: These include paraffin waxes, wool wax, wool wax alcohols, candelilla wax, olive wax, carnauba wax, japan wax, apple wax, hardened fats, fatty acid esters, glycerides.Preferred Emulsifiers: These include sucrose or sorbitan esters and alkyl glycosides.Preferred Additives: These include betaine; panthenol; panthenyl ethyl ether; sorbitol; protein hydrolysates; plant extracts.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred UV Filters: These include zinc oxide and titanium dioxide.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: Other ingredients include thickening polymers, waxes, emulsifiers, silicones, and active ingredients or additives.Preferred Thickening Polymers: These are copolymers of (meth)acrylic acid and ethoxylated fatty alcohol acrylates; crosslinked polyacrylic acid; crosslinked copolymers of (meth)acrylic acid and fatty alcohol acrylates; copolymers of (meth)acrylic acid and ethoxylated fatty alcohol itaconates; copolymers of (meth)acrylic acid and ethoxylated fatty alcohol itaconates and aminoalkyl acrylates; copolymers of (meth)acrylic acid and/or (meth)acrylate esters; copolymers of vinylpyrrolidone and ammonium acryloyldimethyltaurate; copolymers of ammoniumacryloyldimethyltaurate and ethoxylated fatty alcohol methacrylates; hydroxyethylcellulose; hydroxypropylcellulose; hydroxypropylguar; glyceryl poly(meth)acrylate; olefin-styrene copolymers; polyurethanes; hydroxypropyl starch phosphate; polyacrylamide; decadiene-crosslinked copolymer of maleic anhydride and methylvinylether; locust bean flour; guar gum; xanthan; dehydroxanthan; carrageenan; karaya gum; hydrolyzed corn starch; copolymers of polyethylene oxide, fatty alcohols and methylendiphenyl diisocyanate.Preferred Silicones: These are cyclic dimethylsiloxanes, linear polydimethylsiloxanes, block polymers of polydimethylsiloxane and polyethylene oxide and/ or polypropylene oxide, polydimethylsiloxane with terminal or pendant polyethylene oxide or polypropylene oxide groups, hydroxy-terminal polydimethylsiloxanes, phenyl-substituted polydimethylsiloxanes, silicone emulsions, silicone elastomers, silicone waxes, silicone rubbers, amine-substituted silicones and quaternary ammonium-substituted silicones.Preferred Waxes: These include polyolefin waxes, polyethylene glycol waxes, silicone waxes.Preferred Additives: These include AB block-copolymers of alkyl acrylates and alkyl methacrylates; AB block-copolymers of alkyl methacrylates and acrylonitrile; ABA block copolymers of lactide and ethylene oxide; ABA block copolymers of caprolactone and ethylene oxide; ABC block-copolymers of olefins or dienes, styrene and alkyl methacrylates; ABC block copolymers of acrylic acid, styrene and alkyl methacrylates; star block copolymers; hyperbranched polymers, dendrimers, conductive 3,4-polyethylendioxythiophenes and conductive polyanilines.Preferred Emulsifiers: These include ethoxylated and/or propoxylated fatty alcohols, fatty acids, alkylphenols and fatty acid esters; ethoxylated glycerol; ethoxylated (hydrogenated) castor oil; ethoxylated fatty alkyl phosphates; ethoxylated sorbitan fatty acid esters; polyglycerol fatty acid esters. EXAMPLE - An aerosol can with a Truspray (RTM) spray head was charged with a sunscreen composition (50 g) and pressurized to 4.8 bar with propane/butane. The composition comprised (wt.%): octyldodecanol (10), hydrogenated coco glycerides (1), glycerol (5), Carbopol 1382 (RTM) (0.6), sodium hydroxide (0.2), 4-t-butyl-4'-methoxydibenzoylmethane (0.5), 2-ethylhexyl 4-methoxycinnamate (3), , 2-phenyl-5-sulfobenzimidazole (3), perfume (0.3), phenoxyethanol (0.5) and water (to 100).