Resin particles comprising a biodegradable resin and a specific amount of a metal element
US11879040B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Oct 20, 2021 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Aug 12, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Resin particles include mother particles containing a biodegradable resin and a plasticizer, in which an amount of a metal element having an ionic valence of 2 or more, obtained by fluorescent X-ray analysis, is 0.002% by mass or more and 2.0% by mass or less with respect to a total amount of the resin particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.