12.07.23
US Patent No. 11,833,236 B2 (Janette Villalobos Lingoes, Thomas Elliot Rabe, Jeremy Chang, Ajay Suthar); The Procter and Gamble Company has patented a cosmetic ink that is comprised of titanium dioxide having a particle size distribution D50 of about 100 nm to about 2,000 nm; a polymeric dispersant having a weight average molecular weight of less than about 20,000 daltons; and a polymeric rheology modifier. The ink composition has approximately 0.1 to 20 mm of separation after 11 days of static storage at 40°C., 1 atm, 60% relative humidity, in an 8-dram glass vial; wherein the separation is syneresis.
Data Science in Personal Care NPD at Procter & Gamble
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