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US 7,807,272 B2Granted
Coating solution, and gas barrier film, gas barrier laminate and gas barrier multilayer film, using the coating solution, and their manufacturing methods
AssigneeKureha Corporation
InventorsMasayuki Okura, Yuko Sekimori, Masahiro Yamazaki
Life of this patent
Estimating the term…
Abstract
A coating solution comprising: a first solvent; 0.1 to 30 parts by weight of a polycarboxylic acid-based polymer relative to 100 parts by weight of the solvent; and 0.05 to 0.25 chemical equivalent of a zinc compound relative to an amount of carboxyl group in the polycarboxylic acid-based polymer, wherein a number average molecular weight of the polycarboxylic acid-based polymer is in a range of 40,000 to 10,000,000.
Claims9
A coating solution, consisting essentially of:
- a first solvent;
- 0.1 to 30 parts by weight of a polycarboxylic acid-based polymer relative to 100 parts by weight of the solvent;
- and
- 0.05 to 0.25 chemical equivalent of a zinc compound relative to an amount of carboxyl group in the polycarboxylic acid-based polymer, wherein a number average molecular weight of the polycarboxylic acid-based polymer is in a range of 40,000 to 10,000,000.
1 more element
A gas barrier film comprising:
- a layer (a) formed from a coating solution (A), consisting essentially of:
- a first solvent;
- 0.1 to 30 parts by weight of a polycarboxylic acid-based polymer relative to 100 parts by weight of the solvent;
- and
- 0.05 to 0.25 chemical equivalent of a zinc compound relative to an amount of carboxyl group in the polycarboxylic acid-based polymer, and in which a number average molecular weight of the polycarboxylic acid-based polymer is in a range of 40,000 to 10,000,000;
- and
- a support,
- the gas barrier film having the layer (a) formed from the coating solution (A) on at least one side of the support.
5 more elements
A gas barrier laminate, comprising:
- a layer (a) formed from a coating solution (A), consisting essentially of:
- a first solvent;
- 0.1 to 30 parts by weight of a polycarboxylic acid-based polymer relative to 100 parts by weight of the solvent;
- and 0.05 to 0.25 chemical equivalent of a zinc compound relative to an amount of carboxyl group in the polycarboxylic acid-based polymer, in which a number average molecular weight of the polycarboxylic acid-based polymer is in a range of 40,000 to 10,000,000;
- a layer (b) formed from a coating solution (B) containing a multivalent metal compound and a second solvent;
- and
- a support,
- the gas barrier laminate having, on at least one side of the support, at least one lamination unit in which the layer (a) formed from the coating solution (A) and the layer (b) formed from the coating solution (B) are adjacent to each other.
5 more elements
A method of manufacturing a gas barrier film, comprising:
- applying, to at least one side of a support, a coating solution (A), consisting essentially of:
- a first solvent;
- 0.1 to 30 parts by weight of a polycarboxylic acid-based polymer relative to 100 parts by weight of the solvent;
- and
- 0.05 to 0.25 chemical equivalent of a zinc compound relative to an amount of carboxyl group in the polycarboxylic acid-based polymer, and in which a number average molecular weight of the polycarboxylic acid-based polymer is in a range of 40,000 to 10,000,000;
- and
- drying to obtain a gas barrier film that has the layer (a) formed from the coating solution (A).
4 more elements
A method of manufacturing a gas barrier laminate, comprising:
- applying, to at least one side of a support, a coating solution (A), consisting essentially of:
- a first solvent;
- 0.1 to 30 parts by weight of a polycarboxylic acid-based polymer relative to 100 parts by weight of the solvent;
- and
- 0.05 to 0.25 chemical equivalent of a zinc compound relative to an amount of carboxyl group in the polycarboxylic acid-based polymer, and in which a number average molecular weight of the polycarboxylic acid-based polymer is in a range of 40,000 to 10,000,000;
- applying a coating solution (B) which contains a multivalent metal compound and a second solvent;
- and
- drying to obtain a gas barrier laminate having at least one lamination unit in which the layer (a) formed from the coating solution (A) and the layer (b) formed from the coating solution (B) are adjacent to each other.
5 more elements
Dependencies are inferred from the claim text.