Use of 4-bora-3A,4A-diaza-s-indacenes for security purposes
US11186768B2 · kind B2 · utility
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16Claims
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Inventor
Key dates
| Filing date | Jan 9, 2017 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Dec 7, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2211/1055
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the use of one or more compounds of the 4-bora-3a,4a-diaza-s-indacene family for the preparation of a security element for a product, in particular a document, said security element comprising a polymer and said compound(s) being incorporated in said polymer, and to a method for ensuring the security of a product, in particular that of a document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.