USE OF 4,4-DIFLUORO-4-BORA-3A, 4A-DIAZA-S-INDACENES FOR SECURITY

摘要

The invention relates to the use of one or more compound (s) of the family of 4,4-difluoro-4-bora-3a, 4a -diaza-s-indacènes for the preparation of a security element for a product, in particular of a document, said security element comprising a polymer and said compound (s) being incorporated in said polymer, as well as a method of securing a product, in particular of a document .