en.Wedoany.com Reported - Shinsung Materials Co., Ltd. has obtained a Korean patent (10-1937332) for the purification process of the water-soluble UV absorber Ecamsule (Terephthalylidene Dicamphor Sulfonic Acid, TDSA), with its key technology drawing industry attention. The patent is titled "Purification Method of Terephthalylidene Dicamphor Sulfonic Acid."
Although traditional TDSA offers excellent UV protection performance, it has limitations in formulation handling, storage stability, and transportation efficiency. To overcome these drawbacks, the company employs a proprietary neutralization process with tromethamine as a core step, enabling the water-soluble UV absorber to be seamlessly incorporated into cosmetic formulations. The ingredient is commercialized in high-purity powder form, simplifying processing and expanding application scope. Shinsung Materials stated that the application of this patented technology enhances UVA protection performance by maximizing photostability—i.e., remaining stable under light exposure while retaining water solubility—significantly improving the basic UV protection efficiency of sunscreen products. The purity and quality of ingredients produced through this patented process have been verified by USP 44 standards.
Shinsung Materials has drawn attention for localizing Ecamsule manufacturing technology and establishing proprietary patent barriers, helping significantly reduce dependence on imports. Previously, Ecamsule was an exclusive ingredient for companies such as L'Oréal. The company believes that the verified purity and quality broaden the range of options for Korean brands entering the U.S. market.
In terms of environmental protection and sustainability, Shinsung Materials has launched two COSMOS-certified natural-origin oil thickeners: Dextrin Palmitate and Stearoyl Inulin. Dextrin Palmitate produces clearer gels than traditional products while offering excellent gel strength, aligning with the global clean beauty trend. In key raw material categories such as high-purity preservatives, water-soluble UV absorbers, and oil gelling agents, the company maintains a product line including high-purity 1,2-Hexanediol, 1,2-Pentanediol, 1,2-Octanediol, and Ethylhexylglycerin, ensuring a stable supply of natural preservative systems.
