Hydrocarbon propelled aerosol hair spray compositions

Claim 2

Aerosol hair spray compositions in aerosol containers, said compositions comprising 0.5 to 5% by weight of a resin consisting of a copolymer of at least one unsaturated monocarboxylic acid and at least one vinyl or vinylidene monomer, 5-60% hydrocarbon propellent, with solvent comprising the remainder of said composition (to 100%), wherein 7 to 100% of the available carboxyl groups of said resin are neutralized, depending on the type of resin employed, with at least 50% of the carboxyl groups which are to be neutralized being neutralized with a long chain primary, secondary or tertiary amine, wherein the longest chain of the amine contains 8 to 20 carbon atoms, the amount of neutralization being such that the solubility of the resin is substantially increased.

Claim 3

Claim 1 wherein the resin contains: (i) 5-55 mole percent monocarboxylic acid monomer selected from the group consisting of acrylic acid, methacrylic acid, crotonic acid, allyl acetic acid, 2-allyl oxypropionic acid, beta-benzoyl acrylic acid, 2-furfural acrylic acid, 2-vinyl propionic acid, vinylacetic acid, sorbic acid and mixtures thereof; and (ii) 45-95 mole percent of at least one monomer selected from the group consisting of: (a) styrene and derivatives thereof, (b) methacrylate and acrylate alkyl esters wherein the alkyl group contains 1 to 18 carbon atoms, (c) vinyl esters of the formula CH 2 ═CH--OCOR where R is an alkyl group containing 1-18 carbon atoms, (d) alkyl substituted acrylamides and methacrylamides of the formula CH 2 ═CR--CONR 1 R 2 where R is H or CH 3 ; R 1 is H or C 1 -C 12 and R 2 is C 1 -C 18 , (e) diesters of fumaric, itaconic and maleic acids, and, (f) vinyl ethers; and (iii) 0-30 mole percent of at least one monomer selected from the group consisting of: (a) hydroxy functional acrylates and methacrylates, (b) cationic monomers selected from the group consisting of t-butyl aminoethyl methacrylate, dimethyl aminoethyl methacrylate, diethyl aminoethyl methacrylate, and the quaternized derivatives thereof, (c) acrylamide and non-alkyl substituted acrylamides, and (d) cyclic amides.

Claim 4

Claim 1 wherein the resin is a copolymer of vinyl acetate and crotonic acid.

Claim 5

Claim 1 wherein the resin is a terpolymer of vinyl acetate, crotonic acid and a vinyl ester of an alpha-branched saturated aliphatic monocarboxylic acid containing from 5 to 10 carbon atoms in the carboxylic acid moiety.

Claim 6

Claim 1 wherein the resin is a copolymer of N-tert-octylacrylamide, methyl methacrylate, hydroxypropyl methacrylate, acrylic acid and t-butyl aminoethyl methacrylate.

Claim 7

Claim 1 wherein the hydrocarbon propellent is a blend of butanes and propane.

Claim 8

Claim 1 wherein the long chain amine is selected from the group consisting of octadecyl amine, octyl amine, hexadecyl amine, cocoamine, dimethyloctadecylamine and stearyl amine.

Claim 9

Claim 1 wherein a minor portion of the carboxyl groups which are to be neutralized are neutralized with an amine or alkanolamine selected from the group consisting of ammonia water, mono-, di- or triethanolamine, mono-, di or tri-propanolamine, morpholine, amino ethyl ethanol amine, amino methyl propanol, amino methyl propanediol, hydroxy ethyl morpholine, ammonium salts of lysine or glycine and mixtures thereof.