Abstract: The invention relates to a preform intended for forming containers by blow molding or stretch-blow molding, the preform being made of plastic material including at least one additive giving the plastic material the property of at least partially filtering the visible light spectrum, the preform comprising a wall forming a hollow body, said one or more additive(s) giving the plastic material the property of at least partially allowing the passage of light in the infrared spectrum.

Abstract: The invention relates to a method that uses a low-pressure plasma to deposit a barrier coating on a substrate, of the type in which the plasma is obtained by partial ionisation, under the influence of an electromagnetic field, of a reaction fluid injected at low pressure into a treatment zone. The method includes: at least a step in which a first layer, obtained in the plasma state bearing a mixture containing at least one organosilicon compound and one other compound, is deposited on the substrate; a step in which a second layer, essentially consisting of silicon oxide having formula SiOx, is deposited on the first layer; and at least a step in which a third layer, obtained in the plasma state bearing a mixture containing at least one organosilicon compound and one other compound, is deposited on the second layer, said aforementioned other compounds both taking the form of nitrogen compounds, such as nitrogen gas.

Abstract: Method for controlling a high-voltage power supply generator for a magnetron (16) for producing a cold plasma inside a hollow body in order to carry out the deposition of a boundary layer within said hollow body, characterised in that it comprises selecting (E2) a generator operation mode from a plurality of operation modes (MODE 1, MODE 2, MODE 3), modifying the operation mode (MODE 1, MODE 2, MODE 3) of the generator by varying at least one coefficient ((a, b, c); (a1, b1, c1)) defining a maximal power Pmax of the waveform of the supply power of the magnetron (16) according to a set average power Pmoy of the magnetron (16), the magnetron (16) supply waveform being repeated recurrently with a cyclic conduction ratio Th depending on the set average power Pmoy and/or on the maximal power Pmax.

Abstract: A plastic container coated with a barrier layer on an inner surface thereof and a process for coating an inner surface of a plastic container with a barrier layer. The barrier layer may contain carbon and hydrogen. The barrier layer may have a hydrogen concentration ([H]/([C]+[H])) of from about 37% to about 45%. The barrier layer may have a sp2/sp3 carbon ratio of from about 0.2 to about 0.3. The barrier layer may have an optical gap E04 of from about 2.3 eV to about 2.9 eV. The barrier layer may have a spin density of from about 6×1018 cm?3 to about 2×1020 cm?3. The barrier layer may have a stoichiometric composition in the range of C1H0.59-0.80.

Abstract: Method for manufacturing a polymer article having a thin carbon coating formed on at least one of its sides by plasma enhanced chemical vapor deposition, this method including: a first step, corresponding to a time T1 when the treatment pressure is reached in the treatment area, the reactive fluid being injected in the treatment area; a second step, corresponding to a time T2 during which electromagnetic field is applied in the treatment area, characterized in that time T1 is around 1.5 second, time T2 being around 1.2 second, the reactive fluid being a carbon precursor in the gaseous state, its flow being of around 100 sccm.

Abstract: The invention provides a container such as a bottle or flask, made heterogeneously from a material with a barrier effect and a polymer material, characterised in that the material with a barrier effect is an amorphous carbon material with a polymer tendency which is applied as a coating on a substrate of polymer material.

Abstract: The invention provides a container such as a bottle or flask, made heterogeneously from a material with a barrier effect and a polymer material, characterized in that the material with a barrier effect is an amorphous carbon material with a polymer tendency which is applied as a coating on a substrate of polymer material.

Abstract: The invention provides a container such as a bottle or flask, made heterogeneously from a material with a barrier effect and a polymer material, characterised in that the material with a barrier effect is an amorphous carbon material with a polymer tendency which is applied as a coating on a substrate of polymer material.

Abstract: The invention provides a container such as a bottle or flask, made heterogeneously from a material with a barrier effect and a polymer material, characterized in that the material with a barrier effect is an amorphous carbon material with a polymer tendency which is applied as a coating on a substrate of polymer material.

Abstract: The invention provides a container such as a bottle or flask, made heterogeneously from a material with a barrier effect and a polymer material, characterized in that the material with a barrier effect is an amorphous carbon material with a polymer tendency which is applied as a coating on a substrate of polymer material.