# US 7,465,487 B2 · Decorative sheet and decorative material

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- Number: US 7,465,487 B2
- Document ID: US7465487B2
- Status: Granted
- Kind: B2
- Application number: 10/976,612
- Filed: 2004-10-29
- Published: 2007-08-09
- Granted: 2008-12-16
- Earliest claimed: 2004-10-29
- Assignees: Dai Nippon Printing Co., Ltd.
- Inventors: Nobuo Saito
- Web page: https://patentgrep.com/patent/US7465487B2

## CPC

- B44F 9/08: of crystalline structures, pearl effects, or mother-of-pearl effects
- B44C 1/10: Applying flat materials, e.g. leaflets, pieces of fabrics (paperhanging B44C7/00)
- 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})
- Y10T 428/24893: including particulate material
- Y10T 428/24901: including coloring matter
- Y10T 428/24909: Free metal or mineral containing
- Y10T 428/251: Mica
- Y10T 428/252: Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
- B44F: SPECIAL DESIGNS OR PICTURES
- B44C: PRODUCING DECORATIVE EFFECTS (processes for applying liquids or other fluent materials to surfaces, in general B05D; shaping of plastics or substances in a plastic state B29C; printing processes to produce transfer pictures B41M3/12; thermographic duplication or marking methods B41M5/00); MOSAICS; TARSIA WORK (imitation of mosaic or tarsia work patterns B44F11/04); PAPERHANGING {(labels G09F; multi-step processes for making paper labels or tags B31D1/02)}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The use of a pearl pigment as a decorative material for the interior of automobile parts is known to weaken the weather resistance of these parts. Improved weather resistance is achieved by providing a decorative sheet 10, wherein a pearl ink layer 2 comprising a pearl pigment is provided on a base material sheet 1, and the pearl ink layer comprises: at least a vinyl chloride-vinyl acetate copolymer as a binder resin; and the pearl pigment obtained by coating mica with a titanium dioxide, and further, coating the surface thereof with a metal oxide and/or a metal oxide hydrate of metals other than a titanium such as a zirconium, a silicon and the like. The titanium dioxide is preferably of a rutile type. Moreover, the base material sheet is preferably a resin sheet of an acrylic resin. A decorative material 20 can be obtained by laminating the above mentioned decorative sheet on a surface of a base material 5, which is a resin molded body.

## Claims

### Claim 1

A decorative sheet, wherein a pearl ink layer comprising a pearl pigment is provided on a base material sheet, and the pearl ink layer comprises: at least a vinyl chloride-vinyl acetate copolymer as a binder resin; and a pearl pigment obtained by coating mica with a layer containing titanium dioxide, and further, coating the surface thereof with a metal oxide and/or a metal oxide hydrate of metals other than titanium, and wherein an adhesive layer comprising a vinyl chloride-vinyl acetate copolymer is formed on the pearl ink layer so as to be provided as an outermost layer.

### Claim 2 (depends on 1)

The decorative sheet according to claim 1, wherein the metal of the metal oxide and/or metal oxide hydrate is zirconium.

### Claim 3 (depends on 1)

The decorative sheet according to claim 1, wherein the base material sheet is a resin sheet of an acrylic resin.

### Claim 4 (depends on 1)

The decorative material comprising the decorative sheet according to claim 1 laminated on the surface of a resin molded body.

### Claim 5 (depends on 4)

The decorative material according to claim 4, wherein the resin of the resin molded body is made of an ABS resin, polycarbonate resin or of both these resins, and the base material sheet of the decorative sheet is a resin sheet of an acrylic resin.

### Claim 6 (depends on 5)

The decorative material according to claim 5, wherein the decorative material is used for vehicles.

### Claim 7 (depends on 4)

The decorative material according to claim 4, wherein the decorative material is used for vehicles.

### Claim 8 (depends on 1)

The decorative sheet according to claim 1, wherein the pearl pigment is further coated with a silane coupling agent.

### Claim 9 (depends on 8)

The decorative sheet according to claim 8, wherein a coating amount of the metal oxide and/or metal oxide hydrate is 4 to 20 wt % based on a total weight of the pearl pigment.

### Claim 10 (depends on 1)

The decorative sheet according to claim 1, wherein a coating amount of the metal oxide and/or metal oxide hydrate is 4 to 20 wt % based on a total weight of the pearl pigment.