Patent ID: 8461214
Filing Date: 2013-06-11
Classification: A61K,A61Q

Abstract:
1. A one-phase microemulsion composition comprising: an oil component; a dimethyl ether compound of a polypropylene glycol/polyethylene glycol copolymer that does not interdissolve with the oil component; a hydrophilic nonionic surfactant that is different than the dimethyl ether compound of the polypropylene glycol/polyethylene glycol copolymer, said hydrophilic nonionic surfactant having an HLB that is not less than 13; a lipophilic nonionic surfactant that is different than the dimethyl ether compound of the polypropylene glycol/polyethylene glycol copolymer, said lipophilic nonionic surfactant having an HLB that is not more than 6; and water; wherein a critical micelle concentration of the hydrophilic nonionic surfactant in the dimethyl ether compound of the polypropylene glycol/polyethylene glycol copolymer is higher than that of the hydrophilic nonionic surfactant in water.