Preparation method for powder product, powder product, and powder commodity
US12370130B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2025 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Jan 14, 2045 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/87
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided are a preparation method for a powder product, a powder product, and a powder commodity. The preparation method for a powder product includes the following steps: mixing 30% to 50% by mass of an oil-phase component and 50% to 70% by mass of a water-phase component to form a powder mixture liquid, feeding the powder mixture liquid into a mold, and baking the powder mixture liquid until its moisture content is ≤20%, to obtain a powder base product; cooling the powder base product to a predetermined temperature to obtain a solidified powder base product; releasing the solidified powder base product from the mold, and vacuum freeze-drying under a vacuum negative pressure condition. The powder product obtained by the freeze-drying is less prone to cakey makeup or powder floating, has a lighter and thinner skin feeling, and is fitter to skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.