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US 2003/0157346 A1Published application
Gas Barrier film
AssigneeFuji Photo Film Co., Ltd.
InventorsKoichi Kawamura, Takeyoshi Kano, Miki Takahashi
Life of this patent
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Abstract
The invention provides a gas barrier film having a support including a hydrophilic surface or a non-ionic hydrophobic surface on which a graft polymer chain having a polar group is present, and an inorganic thin film formed on the surface.
Claims19
A gas barrier film comprising:
- a support including a surface on which a graft polymer chain having a polar group is present;
- and
- an inorganic thin film formed on the surface.
A gas barrier film comprising:
- a support including a surface on which a hydrophilic graft polymer chain is present;
- and
- an inorganic thin film formed on the surface.
A gas barrier film comprising:
- a support including a surface on which a graft polymer chain having a non-ionic polar side chain is present;
- and
- an inorganic thin film formed on the surface.
A method of producing a gas barrier film comprising the steps of:
- preparing a substrate;
- allowing to react the substrate with a hydrophilic graft polymer having at a terminal end or in a side chain thereof a functional group that is capable of reacting with the substrate to form a hydrophilic graft polymer layer;
- and
- forming an inorganic thin film on the formed hydrophilic graft polymer layer by a gas phase method using an inorganic compound or by an inorganic fine particle adsorption method.
1 more element
A method of producing a gas barrier film comprising the steps of:
- preparing a substrate;
- applying energy to the surface of the substrate by plasma irradiation, light irradiation or heating to provide active species on the surface of the substrate;
- contacting the substrate having the active species on the surface thereof with a compound having a hydrophilic functional group and a double bond in a molecule to polymerize the active species to the compound and to thereby form a hydrophilic graft polymer;
- and
- forming an inorganic thin film on the formed hydrophilic graft polymer layer by a gas phase method using an inorganic compound or by an inorganic fine particle adsorption method.
2 more elements
Dependencies are inferred from the claim text.