Aerosol hair sprays

VA/crotonates/vinyl neodecanoate copolymer is the most used polymer in aerosol hair sprays (ca 1993). Like its precursor above, it has free carboxyhc acid groups which can be neutralized to give various film properties. Recommended neutralizing agents include aminomethyl propanol, ammonium hydroxide, and dimethyl stearamine. Recommended percent neutralization is 90%, but products can be found in the 80—110% range. 

Acrylic acid derivatives treated with heparin are used to coat surfaces of clinical equipment. Acrylic acid is also used as a copolymer component in aerosol hair spray, in plastics, in molding powder for signs, in paint formulations, in leather finishing, in paper coatings, and in latex applications to prevent premature coagulation. It is also used in the production of hydrogels used for contact lenses. 

Use Dried egg whites, film coated tablets, aerosol hair spray, deodorants, perfumes, flavors, cellulose acetate films, and cigarette filters. 

Use Sizing, adhesives, blending agent, aerosol hair sprays. 

Aristoflex. [Hoechst Celanese] Vinyl acetate/crotonic acid copolymers hair fixative for aerosols, hair sprays, setting lotions, conditioners. 

Hydrocarbon aerosol hair sprays contain an alcohol-hydrocarbon solvent-propellant system, a synthetic polymeric resin, a base to neutralize the resin if it is a carboxylic acid-containing resin, plasticizer(s), fragrance, and, in some cases, surfactant(s) to improve the spreading characteristics of the polymer. Most of the new low-VOC aerosol hairsprays contain alcohol-water as the solvent system and dimethyl ether as the propellant. Together the alcohol-dimethyl ether content must be below 55% (54.5%). For cost considerations, dimethyl ether is the propellant of choice, although Hydrofluorocarbon 152-A is exempt as a VOC and provides acceptable, but expensive formulations with previously used resins [54]. In Europe and other parts of the world, there are no VOC limits, and hydrocarbon-alcohol systems with virtually no water are widely used. 

Products and Uses A fixative in adhesives and aerosol hair sprays. 

Chem. Descrip. Acetyltriethyl citrate USP/NF CAS 77-894 EINECS/ELINCS 201-066-5 Uses Plasticizer, carrier, solvent, fixing agent in cosmetics (aerosol hair sprays, nail polish, perfume), pharmaceuticals (film coated tablets), industrial applies, (can coatings, inks, transparerx films) plasticizer for polymers hardness reducer and antitackifier for resins solv. and plasticizer tor plastic materials in contact with foodstuffs Features High b.p. low volatility... 

Chem. Descrip. Acetyl tributyl citrate CAS 77-90-7 EINECS/ELINCS 201-067-0 Uses Plasticizer for Indirect and direct food contact applies., PVC toys, cellulose nitrate films, aerosol hair sprays, dairy prod, cartons, drink bottle caps, food Jar caps, sol n. coatings for foil and paper milling lubricant for aluminum foil or sheet steel for use in cans for beverage and food prods. food pkg. adhesives, coatings, paper, cellophane Features Produces resins with exc. heat stability and low toxicity Regulatory FDA 21 CFR 172.515,175.105,175.300,175.320,175.380, 175.390,176.170,176.180,177.1200,177.1210,178.3910,181.27 Properties APHA 30 max. color, essentially odorless insol. in water m, w. 

Methylene chloride can still be used in aerosol hair sprays up to about 20% levels, but this is confined to a few manufacturers in southern Europe. Widespread usage of methylene chloride has virtually disappeared due to toxicity concerns in this application. 

Gormley JL, Martino GT, Pluyter JGL, Tong QK. Using physical measurements to optimise water-containing aerosol hair sprays. Cosmet Toilet Manf World 1997 209-216. 

Use Concentration 0.1-2% in alcoholic aerosol hair sprays, setting lotions, and aftershave lotions Solubility Characteristics Alcohol-soluble... 

Also accepted for use as a plasticizer in aerosol hair sprays and bemdages by the Food and Drug Administration. 

Excellent plasticizer and solvent for aerosol hair sprays. Specif ications ... 

Uses SurfactanL conditioner, softener for cosmetics (cream hair rinses, skin creams and lotions, aerosol hair sprays, hair color rinses), textiles, paper antistat for natural and syn. fibers dispersant for pigments and dyestuffs Properties Wh. thick creamy paste mild, sweet odor sol. in lower alcohols and glycols readily disp. in water dens. 7.9 Ib/gal pour pt. 110-120 F d. pt. 140 F pH (1%disp.) 3.04.0 21% act. 

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