Back to results
US 5,670,159 AGranted
Fragrance-containing cosmetic gelatin capsule
AssigneeR.P. Scherer Corporation
InventorsFrank S. S. Morton, Pilar P. Duque, Timothy B. Chiprich, Norman S. Stroud
Life of this patent
Estimating the term…
Abstract
Fragrances in soft gelatin capsules are disclosed. The desired fragrance is dissolved in a solvent system comprising a volatile solvent, a non-volatile cosolvent, or a combination of a volatile solvent and a non-volatile cosolvent or cosolvents. The resulting solution is then encapsulated by soft gelatin shell prepared with an odor-free, glycerol free gelatin plasticized with a partially dehydrated, hydrogenated glucose syrup.
Claims8
A fragrance-containing gelatin capsule comprising
- (a) a shell, the shell comprising a blend of odor-free gelatin having a Bloom value of from about 220-300, and a partially dehydrated, hydrogenated glucose syrup comprising at least about 25% by weight sorbitol and at least about 20% by weight of sorbitans;
- and
- (b) at least about 0.02 ml of a fill encapsulated by the shell, the fill comprising from about 5-40% of fragrance based on the weight of the fill, the fragrance being dissolved in a fragrance-dissolving system comprising (i) a volatile solvent selected from the group consisting of dimethicones, cyclomethicones, substituted siloxanes, aromatic hydrocarbons of about 6 to 30 carbon atoms, and aliphatic hydrocarbons having about 6 to 25 carbon atoms;
- and (ii) a nonvolatile cosolvent selected from the group consisting of C.sub.6 -C.sub.22 straight or branched chain alkyl esters of straight or branched chain carboxylic acids having 8 to 18 carbon atoms, benzyl or C.sub.6 -C.sub.22 straight or branched chain alkyl benzoates, C.sub.6 -C.sub.22 a straight or branched chain alkyl esters of straight or branched chain carboxylic acids having 8 to 18 carbon atoms, C.sub.6 -C.sub.22 straight or branched chain alkoxyalkyl esters of straight or branched chain carboxylic acids having 8 to 18 carbon atoms, glyceryl esters containing 8 to 18 carbon atoms derived from the carboxylic acid, sorbitan esters, straight or branched alkyl esters of alkoxylated fatty acid esters, and fatty alcohols having from 10 to 22 carbon atoms, or mixtures thereof.
1 more element
Dependencies are inferred from the claim text.