MUMBAI, India, Aug. 31 -- Intellectual Property India has published a patent application (202514120203 A) filed by Shinsung Materials Co. , Ltd. on December 02, 2025, for Powdered Water-Soluble Organic Salt Of Phenylbenzimidazole Sulfonic Acid, Method Thereof And Sunscreen Cosmetics Containing The Same.
Inventors include Kim, Kwang Shik --; and Shin, Sang Kyu.
The application for the patent was published on August 28, 2026, under issue no. 35/2026.
Abstract: The present invention relates to a powdered water-soluble organic salt of phenylbenzimidazole sulfonic acid, a method for preparing the same, and sunscreen cosmetics containing the same. The present invention can remove impurities not detected by conventional analytical methods by adding crude phenylbenzimidazole sulfonic acid to purified water and adding an organic amine compound while stirring to completely dissolve it, neutralizing the pH of the dissolved solution, filtering the neutralized solution, concentrating the aqueous solution containing the water-soluble salt of phenylbenzimidazole sulfonic acid under reduced pressure, and precipitating crystals by dropwise addition of an organic solvent. In particular, it enhances the handling convenience and stability of water-insoluble phenylbenzimidazole sulfonic acid, enabling a consistent formulation in cosmetics.
Disclaimer: Curated by HT Syndication.
