Cosmetic Base Patent with Polymer Formula for Moisturizing Effect

Shiseido Company filed USPTO Patent Application US20260090976A1 for a cosmetic base composition containing a polymer defined by formula (1), where R1 is a C1-4 alkyl group, R2 and R3 are independently hydrogen or C1-4 alkyl groups, m and n are independently 1 to 50, with a number-average molecular weight not exceeding 10,000 and an IOB value of 0.4 to 1.8. The patent covers six inventors and targets cosmetic products achieving both sensory feel and moisturizing properties.

Patent applications do not create compliance obligations for other parties. Competitors developing similar polymer-based cosmetic formulations should review the claims for potential overlap with their own R&D activities. Third parties may file third-party observations during examination or monitor the application for issued patent protection. This is a publication stage document; no examiner's decision or granted claims are included.