Method for marking a material for authentication and/or traceability of said material

Abstract

The invention relates to a method for marking a material, for example for purposes of authentication and/or traceability of said material, notably batches generated. The said marking method comprises: —a step of supplying a marking composition chosen among molecular tags, and—a step of incorporating said marking composition into said material. And, according to the invention, said marking composition comprises particles, advantageously remaining intact after incorporation in said material, which comprise: —a homogeneous porous matrix which comprises a plurality of pores, —an information support added to said homogeneous porous matrix, wherein said information support consists of a polymer comprising an information sequence, and—a particle surface having a coating with at least one fluidizing agent, suitable for promoting uniform dispersion of said particles within said material.

Dependencies are inferred from the claim text.