| 主权项 |
1. An alcohol-free dental appliance cleansing formulation which is applied to the dental appliance outside the wearers mouth for at least about 60 seconds, and which is a metastable emulsion comprising about 75-90% w/w of an aqueous phase, about 0.5-20% w/w of a water immiscible oily phase, the oily phase having a combination of one or more immiscible oils, selected from sesame oil, soybean oil, canola oil, coconut oil, fractionated coconut oil, fish oil, or mineral oil, and about 2-6% w/w of one or more flavor oils, further comprising an organic acid selected from benzoic acid, sorbic acid, malic acid, citric acid and salicylic acid; and a surfactant selected from an anionic surfactant, a zwitterionic surfactant and a non-ionic surfactant or combination thereof, the formulation having a pH between 4.0 and 5.5 and an acrylic contact angle of less than 24°, and wherein the metastable emulsion is a short-lived oil in water dispersion which will start to separate, if left undisturbed, in under 5 minutes. |
