Use of rare earth amino acid complex, polylactic acid composition and preparation method thereof
US12122894B2 · kind B2 · utility
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Key dates
| Filing date | Jun 28, 2023 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/322
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided are use of a rare earth amino acid complex, a polylactic acid composition and a preparation method thereof. The rare earth amino acid complex is formed by complexing a rare earth metal ion with an amino acid; a rare earth element corresponding to the rare earth metal ion is one or more selected from the group consisting of lanthanum, cerium and samarium; and the amino acid is at least one selected from the group consisting of proline, L-phenylalanine, tyrosine and tryptophan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.