| abstract |
A method for treating an elastomeric packaging element, for example a closure element, including coating with a polymer film at least those parts of said element that may come into contact with the packaged products, characterised in that the coating is obtained by flowing cold plasma-assisted polymerisation of one or more monomers selected from siloxanes and silazanes of formula (I), wherein A is an oxygen atom or NH group; and R1, R2, R3, R4, R5 and R6 are independently a hydrogen atom or an alkyl or alkoxy group with 1 to 4 carbon atoms, preferably a methyl group, provided that at least one of R1, R2, R3, R4, R5 and R6 is a hydrogen atom. The invention is useful for closures intended for medical or pharmaceutical use. |