# US 12,109,785 B2 · Metallic decoration film, metallic interior/exterior member for vehicle, and metallic molded body

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- Number: US 12,109,785 B2
- Document ID: US12109785B2
- Status: Granted
- Kind: B2
- Application number: 17/797,565
- Filed: 2021-01-18
- Published: 2023-02-23
- Granted: 2024-10-08
- Earliest claimed: 2020-02-10
- Assignees: Oike & Co., Ltd.; Denka Company Limited
- Applicants: Oike & Co., Ltd.; Denka Company Limited
- Inventors: Teiko Sato; Kota Nagaoka
- Web page: https://patentgrep.com/patent/US12109785B2

## CPC

- B32B 15/08: of synthetic resin
- B32B 27/08: of synthetic resin
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/18: characterised by the use of special additives
- B32B 27/302: {comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers}
- B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF}
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 33/00: Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
- B32B 37/12: characterised by using adhesives
- B32B 37/203: {One or more of the layers being plastic}
- B60R 13/02: {Internal} Trim mouldings {; Internal} Ledges; Wall liners {for passenger compartments}; Roof liners (B60R13/01 takes precedence {; padded linings for the vehicle interior B60R21/04; arrangements or adaptations of floor mats or carpets in vehicles B60N3/04; internal lining for trains B61D17/18})
- B60R 13/04: {External} Ornamental or guard strips; Ornamental inscriptive devices {thereon (fastening strips or bars to sheets or plates by means of clips F16B5/12)}
- B32B 2250/02: 2 layers
- B32B 2250/246: All polymers belonging to those covered by groups B32B27/32 and B32B27/30
- B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer
- B32B 2255/205: Metallic coating
- B32B 2255/26: Polymeric coating
- B32B 2255/28: Multiple coating on one surface
- B32B 2264/025: Acrylic resin particles, e.g. polymethyl methacrylate or ethylene-acrylate copolymers
- B32B 2270/00: Resin or rubber layer containing a blend of at least two different polymers
- B32B 2307/40: having particular optical properties
- B32B 2307/41: Opaque
- B32B 2307/412: Transparent
- B32B 2307/712: Weather resistant
- B32B 2307/714: Inert, i.e. inert to chemical degradation, corrosion
- B32B 2327/00: Polyvinylhalogenides
- B32B 2451/00: Decorative or ornamental articles
- B32B 2605/00: Vehicles
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

Provided is a metallic decoration film, having a protective layer, an anchor layer, a metal deposition layer, and a bonding layer. The metal deposition layer comprises indium, the protective layer comprises a first mixed resin layer and a second mixed resin layer, the second mixed resin layer is provided on the anchor layer side, the first mixed resin layer comprises a vinylidene fluoride-based resin and an acrylic acid ester-based resin, the second mixed resin layer comprises a vinylidene fluoride-based resin and an acrylic acid ester-based resin, a solid content concentration ratio (% by mass) of the vinylidene fluoride-based resin to the acrylic acid ester-based resin in the first mixed resin layer is 75:25 to 60:40, and a solid content concentration ratio (% by mass) of the vinylidene fluoride-based resin to the acrylic acid ester-based resin in the second mixed resin layer is 15:85 to 60:40.

## Claims

### Claim 1

A metallic decoration film comprising:
a protective layer;
an anchor layer;
a metal deposition layer; and
a bonding layer,
wherein:
the protective layer, the anchor layer, the metal deposition layer, and the bonding layer are arranged in the stated order;
the metal deposition layer comprises indium;
the protective layer comprises a first mixed resin layer and a second mixed resin layer;
the second mixed resin layer is provided on the anchor layer side;
the first mixed resin layer comprises a vinylidene fluoride-based resin and an acrylic acid ester-based resin;
the second mixed resin layer comprises a vinylidene fluoride-based resin and an acrylic acid ester-based resin;
a solid content concentration ratio (% by mass) of the vinylidene fluoride-based resin to the acrylic acid ester-based resin in the first mixed resin layer is 75:25 to 60:40;
a solid content concentration ratio (% by mass) of the vinylidene fluoride-based resin to the acrylic acid ester-based resin in the second mixed resin layer is 15:85 to 60:40;
the anchor layer comprises an acrylic polyol resin as a main agent and an isocyanate-based resin as a curing agent; and
an adhesion between the second mixed resin layer and the anchor layer is from 2.6 N/15 mm to 3.8 N/15 mm, measured in accordance with a 180-degree peeling test.

### Claim 2 (depends on 1)

The metallic decoration film of claim 1, wherein the anchor layer comprises an acryl-based resin.

### Claim 3 (depends on 1)

The metallic decoration film of claim 1, wherein the second mixed resin layer comprises an ultraviolet absorber.

### Claim 4 (depends on 1)

The metallic decoration film of claim 1, wherein the second mixed resin layer comprises a cross-linked acryl-based fine particle filler.

### Claim 5 (depends on 1)

The metallic decoration film of claim 1, the vinylidene fluoride-based resin is polyvinylidene fluoride, and the acrylic acid ester-based resin is polymethyl methacrylate.

### Claim 6 (depends on 1)

The metallic decoration film of claim 1, wherein an adherend is provided on the bonding layer.

### Claim 7 (depends on 1)

A metallic interior/exterior member for a vehicle, the metallic interior/exterior member comprising the metallic decoration film of claim 1.

### Claim 8 (depends on 1)

A metallic molded body comprising the metallic decoration film of claim 1.

### Claim 9 (depends on 1)

The metallic decoration film of claim 1, wherein:
the bonding layer is in contact with the metal deposition layer; and
an adherend is in contact with the bonding layer on a side opposite the metal deposition layer, the adherend having a thickness from 0.3 to 3 mm.