摘要：

The invention relates to a substrate comprising a surface at least a portion of which is coated with an epilame agent comprising at least one compound in the form of a random copolymer comprising M units, N units and optionally at least one unit P, covalently linked by their main chains and randomly distributed, wherein R 1, R 2, R 3, which may be identical or different, are H, a C 1 -C 10 alkyl group or a C 1 -C alkenyl group; Y, X, which may be identical or different, are spacer arms consisting of a heteroatom or a hydrocarbon-based chain which may contain at least one heteroatom, comprising at least one carbon atom A, which may be identical or different, constitutes an anchoring group to the substrate, and is selected from the group consisting of thiols, thioethers, thioesters, sulfides, thioamides, silanols, alkoxysilanes, silane halides, hydroxyls, phosphates, protected phosphonic acids or no, protected or non-protected phosphonates, amines, ammoniums, nitrogenous heterocycles, carboxylic acids, anhydrides, catechol L, identical or different, is a halogenated C 1 -C 20 carbon group, R 4, which may be identical or different, is H, CH 3 a hydrocarbon chain which may contain at least one heteroatom, comprising at least 2 carbon atoms. The invention also relates to a process for the epilamation of such a substrate, as well as to a timepiece or jewelery piece comprising an element comprising such a substrate.

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