GAS BARRIER FILM AND GAS BARRIER LAMINATE

• US 20170036832A1
• Filed: 10/19/2016
• Published: 02/09/2017
• Est. Priority Date: 04/25/2014
• Status: Active Grant

• Current Assignee: Toppan Printing Co., Ltd. (TOPPAN Holdings, Inc.)
• Original Assignee: Toppan Printing Co., Ltd. (TOPPAN Holdings, Inc.)
• Inventors: OMURA, Yuki, HOSHI, Sayaka, KAMINAGA, Junichi
• Granted Patent: US 10,654,631 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B32B 2250/05 5 or more layers
• CPC Class Codes: B32B 2250/24 All layers being polymeric
• CPC Class Codes: B32B 2255/10 on synthetic resin layer or on natural or synthetic rubber layer
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2264/10 Inorganic particles
• CPC Class Codes: B32B 2264/102 Oxide or hydroxide
• CPC Class Codes: B32B 2307/518 bi-axially
• CPC Class Codes: B32B 2307/7242 Non-permeable
• CPC Class Codes: B32B 2307/7244 Oxygen barrier
• CPC Class Codes: B32B 2323/10 Polypropylene
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/18 characterised by the use of special additives
• CPC Class Codes: B32B 27/20 using fillers, pigments, thixotroping agents
• CPC Class Codes: B32B 27/26 using curing agents
• CPC Class Codes: B32B 27/32 comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: B32B 7/04 Interconnection of layers
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: B32B 9/00 Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
• CPC Class Codes: B65D 2565/387 : Materials used as gas barriers
• CPC Class Codes: B65D 65/40 : Applications of laminates for particular packaging purposes B65D1/0215, B65D1/28, B65D3/22, B65D5/0281, B65D5/563, B65D9/30, B65D29/02, B65D31/02, B65D75/26, B65D77/2024, B65D81/1275, B65D81/3811, B65D81/3823, B65D81/3834, B65D81/3846, B65D81/3858, B65D81/3874, B65D81/3886, B65D81/3897 take precedence; laminates per se or laminated packages characterised by the composition or
• CPC Class Codes: C08J 3/20 : Compounding polymers with additives, e.g. colouring
• CPC Class Codes: C08J 3/205 : in the presence of a continuous liquid phase
• CPC Class Codes: C08J 7/042 : with two or more layers, where at least one layer of a composition contains a polymer binder
• CPC Class Codes: C08J 7/043 : Improving the adhesiveness of the coatings per se, e.g. forming primers adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50
• CPC Class Codes: C08J 7/048 : Forming gas barrier coatings
• CPC Class Codes: C08K 2003/2237 : of titanium
• CPC Class Codes: C08K 2003/2241 : Titanium dioxide
• CPC Class Codes: C08K 3/013 : Fillers, pigments or reinforcing additives
• CPC Class Codes: C08K 3/22 : of metals
• CPC Class Codes: C08K 3/34 : Silicon-containing compounds
• CPC Class Codes: C08K 5/0025 : Crosslinking or vulcanising agents; including accelerators
• CPC Class Codes: C08K 5/29 : Compounds containing one or more carbon-to-nitrogen double bonds
• CPC Class Codes: C08L 2201/14 : Gas barrier composition
• CPC Class Codes: C08L 2201/54 : Aqueous solutions or dispersions
• CPC Class Codes: C08L 2312/00 : Crosslinking
• CPC Class Codes: C08L 2314/00 : Polymer mixtures characterised by way of preparation
• CPC Class Codes: C08L 27/06 : Homopolymers or copolymers of vinyl chloride
• CPC Class Codes: C08L 29/04 : Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• CPC Class Codes: C08L 75/04 : Polyurethanes
• CPC Class Codes: C09D 127/06 : Homopolymers or copolymers of vinyl chloride
• CPC Class Codes: C09D 129/04 : Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• CPC Class Codes: C09D 175/04 : Polyurethanes
• CPC Class Codes: C09D 7/40 : Additives
• CPC Class Codes: C09D 7/60 : non-macromolecular C09D7/41-C09D7/48 take precedence
• CPC Class Codes: C09J 175/04 : Polyurethanes
• CPC Class Codes: C09J 175/06 : from polyesters
• CPC Class Codes: Y10T 428/1341 : Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
• CPC Class Codes: Y10T 428/1379 : Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
• CPC Class Codes: Y10T 428/251 : Mica
• CPC Class Codes: Y10T 428/253 : Cellulosic [e.g., wood, paper, cork, rayon, etc.]
• CPC Class Codes: Y10T 428/31565 : Next to polyester [polyethylene terephthalate, etc.]
• CPC Class Codes: Y10T 428/31573 : Next to addition polymer of ethylenically unsaturated monomer
• CPC Class Codes: Y10T 428/3158 : Halide monomer type [polyvinyl chloride, etc.]
• CPC Class Codes: Y10T 428/31645 : Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31786 : Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31797 : Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31909 : Next to second addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31913 : Monoolefin polymer
• CPC Class Codes: Y10T 428/3192 : Next to vinyl or vinylidene chloride polymer
• CPC Class Codes: Y10T 428/31935 : Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31938 : Polymer of monoethylenically unsaturated hydrocarbon

Abstract

A gas barrier film according to the present invention includes: a resin film substrate; a first layer made of an aqueous coating agent (C) that contains a water soluble polymer (A) and an inorganic layered mineral (B); and a second layer made of a coating agent (D) that contains titanium oxide, the first layer and the second layer being disposed in this order on at least one surface of the resin film substrate.

Claims

1. A gas barrier film comprising:

a resin film substrate;

a first layer made of an aqueous coating agent (C) that contains a water soluble polymer (A) and an inorganic layered mineral (B); and

a second layer made of a coating agent (D) that contains titanium oxide, the first layer and the second layer being disposed in this order on at least one surface of the resin film substrate.

2. The gas barrier film of claim 1, wherein the aqueous coating agent (C) contains an aqueous polyurethane resin having water solubility or water dispersibility, a curing agent, the water soluble polymer (A) and the inorganic layered mineral (B).

3. The gas barrier film of claim 1, wherein the water soluble polymer (A) is a polyvinyl alcohol resin.

4. The gas barrier film of claim 2, wherein the water soluble polymer (A) is a polyvinyl alcohol resin.

5. The gas barrier film of claim 1, wherein the inorganic layered mineral (B) is a water-swellable synthetic mica.

6. The gas barrier film of claim 2, wherein the inorganic layered mineral (B) is a water-swellable synthetic mica.

7. A gas barrier laminate comprising:

the gas barrier film according to claim 1; and

an adhesive layer and a heat seal resin layer disposed in this order on at least one surface of the gas barrier film.

8. A gas barrier laminate comprising:

the gas barrier film of claim 2; and

an adhesive layer and a heat seal resin layer disposed in this order on at least one surface of the gas barrier film.

9. A gas barrier laminate comprising:

the gas barrier film of claim 3; and

an adhesive layer and a heat seal resin layer disposed in this order on at least one surface of the gas barrier film.

10. A gas barrier laminate comprising:

the gas barrier film of claim 4; and

an adhesive layer and a heat seal resin layer disposed in this order on at least one surface of the gas barrier film.

11. A gas barrier laminate comprising:

the gas barrier film of claim 5; and

an adhesive layer and a heat seal resin layer disposed in this order on at least one surface of the gas barrier film.

12. A gas barrier laminate comprising:

the gas barrier film of claim 6; and

an adhesive layer and a heat seal resin layer disposed in this order on at least one surface of the gas barrier film.