Heterogenous cosmetic ink composition for inkjet printing applications
US11833236B2 · kind B2 · utility
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96References
10Claims
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Key dates
| Filing date | Sep 14, 2020 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Mar 27, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/87
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic ink composition comprises a particulate material, a polymeric dispersant having a weight average molecular weight of less than about 20,000 daltons, and a polymeric rheology modifier. The particulate material can have a Particle Size Distribution D50 of about 100 nm to about 2,000 nm. The cosmetic ink composition can undergo controlled syneresis, forming a weak colloidal gel phase and a particle-lean, low viscosity phase, which can be printed without interventions such as agitation, mixing, or re-circulation to homogenize the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.