Functionalized calcium carbonate for sun protection boosting
US12280130B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Feb 2, 2018 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | May 7, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a cosmetic composition having UV-A and/or UV-B protection comprising at least one inorganic UV filter, and surface-reacted calcium carbonate having a volume median particle size d50 from 0.1 to 90 μm, wherein the surface-reacted calcium carbonate is a reaction product of natural ground calcium carbonate or precipitated calcium carbonate with carbon dioxide and one or more H3O+ ion donors, wherein the carbon dioxide is formed in situ by the H3O+ ion donors treatment and/or is supplied from an external source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.