Patents

P&G Patents Cosmetic Ink

Janette Villalobos Lingoes, Thomas Elliot Rabe, Jeremy Chang and Ajay Suthar are named in US Patent No. 11,833,236 B2.

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.

Additional Reading

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