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US 6,805,931 B2Granted
Plastic container coated with carbon film
AssigneeKirin Beer Kabushiki Kaisha
InventorKazufumi Nagashima
Life of this patent
Estimating the term…
Abstract
A plastic container has a diamond like carbon film 20b formed on the inner surface of the container 20 made of plastic material 20a. The thickness of the diamond like carbon film 20b is within a range from 0.05 to 5 μm. The container 20 coated with the diamond like carbon film can be used for a returnable bottle for beverage.
Claims48
A bottle comprising
- an outer shell comprising a molded plastic;
- and
- a diamond-like carbon film bonded to an inside surface of the outer shell, wherein
- the diamond-like carbon film is formed by a process comprising
- placing the outer shell into a chamber;
- providing a vacuum in the chamber;
- introducing a gas comprising carbon into the chamber;
- and
- applying high frequency electric power between an internal electrode placed in the outer shell and an external electrode insulated from the internal electrode to form the diamond-like carbon film only on the inside surface of the outer shell, and
- the diamond-like carbon film restrains adsorption by the bottle of an aroma component, which comprises low molecular organic compounds, to effectively zero.
7 more elements
A bottle comprising
- an outer shell comprising a molded plastic;
- and
- a diamond-like carbon film bonded to an inside surface of the outer shell, wherein
- the diamond-like carbon film is formed by a process comprising
- placing the outer shell into a chamber;
- providing a vacuum in the chamber;
- introducing a gas comprising carbon into the chamber;
- and
- applying high frequency electric power between an internal electrode placed in the outer shell and an external electrode insulated from the internal electrode to form the diamond-like carbon film only on the inside surface of the outer shell, and
- the diamond-like carbon film restrains adsorption by the bottle of an aroma component, which comprises low molecular organic compounds, to below a detectable limit.
7 more elements
A bottle comprising
- an outer shell comprising a molded plastic;
- and
- a diamond-like carbon film bonded to an inside surface of the outer shell, wherein
- the diamond-like carbon film is formed by a process comprising
- placing the outer shell into a chamber;
- providing a vacuum in the chamber;
- introducing a gas comprising carbon into the chamber;
- and
- generating plasma by exciting the gas to form the diamond-like carbon film only on the inside surface of the outer shell, and
- the diamond-like carbon film restrains adsorption by the bottle of an aroma component, which comprises low molecular organic compounds, to effectively zero.
7 more elements
A bottle comprising
- an outer shell comprising a molded plastic;
- and
- a diamond-like carbon film bonded to an inside surface of the outer shell, wherein
- the diamond-like carbon film is formed by a process comprising
- placing the outer shell into a chamber;
- providing a vacuum in the chamber;
- introducing a gas comprising carbon into the chamber;
- and
- generating plasma by exciting the gas to form the diamond-like carbon film only on the inside surface of the outer shell, and
- the diamond-like carbon film restrains adsorption by the bottle of an aroma component, which comprises low molecular organic compounds, to below a detectable limit.
7 more elements
A bottle comprising
- an outer shell comprising a molded plastic;
- and
- a diamond-like carbon film bonded to an inside surface of the outer shell, wherein
- the diamond-like carbon film restrains adsorption by the bottle of an aroma component, which comprises low molecular organic compounds, to effectively zero;
- and
- the diamond-like carbon film reduces permeability of oxygen through the outer shell into the bottle by a factor of from 4.9 to 34.
3 more elements
A bottle comprising
- an outer shell comprising a molded plastic;
- and
- a diamond-like carbon film bonded to an inside surface of the outer shell, wherein
- the diamond-like carbon film restrains adsorption by the bottle of an aroma component, which comprises low molecular organic compounds, to below a detectable limit;
- and
- the diamond-like carbon film reduces permeability of oxygen through the outer shell into the bottle by a factor of from 4.9 to 34.
3 more elements
Dependencies are inferred from the claim text.