02.01.18
US Patent No. 9,839,598 B2; Procter & Gamble has patented a skin care composition that is comprised of a superabsorbent polymer selected from the group consisting of sodium polyacrylate, sodium polyacrylate starch, sodium acrylates crosspolymer-2 and mixtures thereof and a portion of the superabsorbent polymer comprises a grafted starch material; dry starch or silicone powder coated with a silicone material; a UV active selected from a group consisting of avobenzone, cinoxate, dioxybenzone, homosalate, menthyl anthranilate, octyl salicylate, oxybenzone, padimate O, phenylbenzimidazole sulfonic acid, sulisobenzone, trolamine salicylate, titanium dioxide, zinc oxide, diethanolamine methoxycinnamate, digalloy trioleate, ethyl dihydroxypropyl PABA, glyceryl aminobenzoate, lawsone with dihydroxyacetone, red petrolatum, ethylhexyl triazone, dioctyl butamido triazone, benzylidene malonate polysiloxane, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, diethylamino hydroxybenzoyl hexyl benzoate, bis diethylamino hydroxybenzoyl benzoate, bis benzoxazoylphenyl ethylhexylimino triazine, drometrizole trisiloxane, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyltriazine, 4-methylbenzylidenecamphor, isopentyl 4-methoxycinnamate and combinations thereof; and water. The superabsorbent polymer is provided as superabsorbent particles that have an average particle size in the range of about 5-30μm.
The individual superabsorbent particles in their dry or un-swollen condition are substantially non-spherical, flat, platelet, or elongated in shape, and the superabsorbent particles have an absorption capacity of at least about 1000 times their initial dry or un-swollen volume.
The individual superabsorbent particles in their dry or un-swollen condition are substantially non-spherical, flat, platelet, or elongated in shape, and the superabsorbent particles have an absorption capacity of at least about 1000 times their initial dry or un-swollen volume.