	US 12,214,067 B2
	Oil-in-water emulsion sunscreen composition
Diane M. Kennedy, Bayonne, NJ (US); Donald I. Prettypaul, Englewood, NJ (US); Hani M. Fares, Somerset, NJ (US); and Rita Marie Guerrero, Hillsborough, NJ (US)
Assigned to ISP INVESTMENTS INC., Wilmington, DE (US)
Appl. No. 15/115,479
Filed by ISP INVESTMENTS INC., Wilmington, DE (US)
PCT Filed Jan. 30, 2015, PCT No. PCT/US2015/013689 § 371(c)(1), (2) Date Jul. 29, 2016, PCT Pub. No. WO2015/116899, PCT Pub. Date Aug. 6, 2015.
Claims priority of provisional application 61/934,158, filed on Jan. 31, 2014.
Prior Publication US 2017/0165187 A1, Jun. 15, 2017
Int. Cl. A61K 8/35 (2006.01); A61K 8/06 (2006.01); A61K 8/37 (2006.01); A61K 8/40 (2006.01); A61K 8/60 (2006.01); A61K 8/81 (2006.01); A61Q 17/04 (2006.01)

CPC A61K 8/8182 (2013.01) [A61K 8/062 (2013.01); A61K 8/35 (2013.01); A61K 8/37 (2013.01); A61K 8/375 (2013.01); A61K 8/40 (2013.01); A61K 8/604 (2013.01); A61Q 17/04 (2013.01); A61K 2800/30 (2013.01); A61K 2800/596 (2013.01)]

6 Claims

1. An oil-in-water emulsion wet-skin sunscreen composition consisting of:

(a) one or more UV actives,

(b) 0.1% w/w to about 5% w/w of a first emulsifier having an HLB value less than 5, wherein the first emulsifier may be comprised of one emulsifier compound or a combination of emulsifier compounds,

(c) a second emulsifier having an HLB value greater than 5, wherein the second emulsifier is present in an amount from about 0.05% w/w to about 0.2% w/w of said composition, and may be comprised of one emulsifier compound or a combination of emulsifier compounds;

(d) one or more film forming and/or water proofing agents selected from the group consisting of poly (butylated vinylpyrrolidone), vinylpyrrolidone and hexadecene copolymer, vinylpyrrolidone and eicosene copolymer, vinyl pyrrolidone and 1-triacontane copolymer, acrylates/C₁₂-C₂₂alkylmethacrylate copolymer, acrylic acid/vinylpyrrolidone crosspolymer, and blends thereof,

(e) one or more ingredients selected from the group consisting of skin-feel additives, pH adjusters, chelating agents, exfoliating agents, treatment agents, fragrances, emollients, liquid carriers, waxes, conditioners, surfactants, rheology modifiers, lubricants, diluents, humectants, antibiotics, viscosity synergists, clarity synergists, antioxidants, anti-aging ingredients, moisturizing agents, preservatives and blends thereof, and

(f) water;

wherein said oil-in-water wet-skin sunscreen composition is free of an emulsifiable polymer, which is defined as a polymer containing hydrophobic chains and causing flaking and/or whitening upon application to wet skin;

wherein the first emulsifier is selected from the group consisting of glycol distearate, sorbitan trioleate, glycol stearate, sorbitan sesquioleate, glyceryl stearate, glyceryl dilaurate, lecithin, sorbitan oleate, sorbitan stearate, sorbitan isostearate, oleth-2 and steareth-2, and blends thereof; and

wherein the second emulsifier is selected from the group consisting of calcium stearoyl lactylate, glyceryl laurate, ceteth-2, PEG-30 dipolyhydroxystearate, glyceryl stearate SE, PEG-4 dilaurate, sorbitan stearate (and) sucrose cocoate, methyl glucose sesquistearate, sucrose stearate, PEG-10 sunflower glycerides, sodium stearoyl lactylate, sorbitan laurate, PEG-40 sorbitan peroleate, lecithin, laureth-4, PEG-7 glyceryl cocoate, PEG-20 almond glycerides, linoleamide DEA, PEG-25 hydrogenated castor oil, cetearyl glucoside, polysorbate 85, glyceryl stearate (and) PEG-100 stearate, stearamide MEA, oleth-10/polyoxyl 10 oleyl ether NF, oleth-10, oleth-20, ceteth-10, PEG-8 laurate, cocamide MEA, polysorbate 60, PEG-60 almond glycerides, isosteareth-20, lauramide DEA, PEG-30 dipolyhydroxystearate, polysorbate 80, PEG-20 methyl glucose sesquistearate, ceteareth-20, oleth-20, steareth-21, ceteth-20, isoceteth-20, polysorbate 20, laureth-23, PEG-100 stearate, PEG-80 sorbitan laurate and blends thereof.