11.15.05
Patent No. US 6,709,671 B2: LTS Loh-mann Therapie-Systeme AG, Neuwied, Germany, patented a water-soluble film for oral administration with instant wettability. The monolayer film is formed from a mucoadhesive composition comprising at least one water-soluble polymer, a surfactant combination and at least one cosmetic or pharmaceutical ingredient.