Skin substitute membrane, mold, and method of evaluating external preparation for skin
US8337554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2012 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Jan 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/5082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A skin substitute membrane includes a surface on one side including a groove-shaped depressed portion and a planar portion, the depressed portion having a cross section having a chamfered V-letter shape, the surface having an arithmetic mean roughness Sa of more than or equal to 10 μm to less than or equal to 50 μm. The depressed portion has a width of more than or equal to 50 μm to less than or equal to 500 μm and a depth of more than or equal to 30 μm to less than or equal to 150 μm. A spectral transmittance for light of more than or equal to 290 nm to less than or equal to 400 nm in wavelength is more than or equal to 50% and less than or equal to 100%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.