JPH08276544A - Decorative molded product - Google Patents

Abstract

PURPOSE: To improve thermoformability, impact resistance after molding decoration, scuff resistance, chemical resistance, suitability for cutting out a sheet, and printability before molding at a low cost by a method wherein a copolymer of methyl (meth)acrylate and butyl (meth)acrylate is made a principal component as a base material of a decorative sheet. CONSTITUTION: A decorative molded product having a copolymer of methyl (meth)acrylate and butyl (meth)acrylate as a principal component is used for a base material of a decorative sheet. The decorative sheet 1 is held with a separating peripheral wall, radiation heat from a hot plate surface is applied to the decorative sheet 1 keeping an interval between a hot platen 7 and the decorative sheet 1 at a specific distance, and the sheet 1 is softened by heating. The preliminarily softened decorative sheet 1 is adsorbed onto a surface of a female mold 2 by pneumatic differential pressure to be preformed. Then, the female mold 2 and a male mold 15 are combined, further fastened, and molten resin is injected into a molding cavity 3 between both molds, filled, cooled, solidified, both molds are opened, and a molded product wherein the decorative sheet 1 is bonded to its surface, is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved molded product whose surface is decorated with an acrylic resin sheet coating, and more particularly to an improved decorative molded product having a three-dimensional uneven shape.

[0002]

2. Description of the Related Art Decorative molded articles are manufactured by, for example, injection molding simultaneous laminating method (Japanese Patent Publication No. 50-19132, Japanese Patent Publication No. 63-6).
No. 339) or a vacuum press simultaneous laminating method (Japanese Patent Publication No. 56-45768, JP-A No. 5-317432), and a decorative sheet is laminated on the surface of the resin molded product. The following is conventionally known as the decorating sheet. An acrylic resin sheet made of polymethylmethacrylate is particularly suitable and widely used in order to obtain sufficient transparency, surface smoothness, and coating feeling of the decorative layer. As a decorative sheet, an ABS sheet or a PVC sheet is used when the surface properties such as moldability and impact resistance are emphasized.

[0003]

When the above-mentioned acrylic resin sheet is used as a decorative sheet on the surface of a molded product, the acrylic resin sheet should be shaped into the surface shape of the molded product for surface decoration of the molded product. It is indispensable to perform vacuum molding, pressure molding, or heat and pressure of the injection resin in the softened state. However, the polymethylmethacrylate that has been used in the past is: a. Physical properties required mainly during molding, such as thermoformability (moderate thermoplasticity), b. Surface physical properties such as scratch resistance, chemical resistance and impact resistance after molding and decoration, necessary physical properties after molding such as preventing sheet cracking when cutting a sheet from a molded product, and c. It was not possible to obtain the ones satisfying the various physical properties required before molding, such as printability such as prevention of cutting of the sheet during printing.

That is, the a. , B. , C. Mainly depends on the average molecular weight m _av. (Or the average degree of polymerization p _av .). For example, the relationship between the average molecular weight m _av. And the physical properties is as shown in Table 1.

[Table 1]

In the table, ◯ means good, Δ means a little bad, and ×.
Represents a defect. Among them, x in the thermoformability a means that it does not follow the uneven shape, x in the surface physical property b means that the scratch resistance is deteriorated, and x in the impact resistance b is the load when the surface of the molded article is hit. It means that the decorative sheet is likely to be cracked or dented, and x in the printability c means that the sheet is swollen by the printing ink and the sheet is cut by the application of tension.

Further, when the above ABS sheet or PVC sheet is used as the decorative sheet, the a. , B. , C. The dullness of the property is good.
However, it is inferior in transparency, surface smoothness and coated feeling. Further, particularly in the case of a PVC sheet, there is a defect that the adhesive strength between the molded product and the decorative sheet decreases with time and the impact resistance in cold weather decreases due to the migration of the plasticizer.
As described above, the conventional decorative sheet has advantages and disadvantages. , B. , C. There is a demand for a decorative sheet that has outstanding properties.

The object of the present invention is inexpensive, thermoformability at the time of molding, surface properties such as impact resistance after molding and decoration, scratch resistance, chemical resistance, suitability for cutting a sheet from a molded article, and It is an object of the present invention to provide a decorating sheet for decorating the surface of a molded product, which has excellent printability before molding.

[0008]

The above objects of the present invention can be achieved by the following constitutions. That is, it is a decorative molding product obtained by laminating a decorative sheet on the surface of a molded product of a resin molded product, wherein a copolymer of methyl (meth) acrylate and butyl (meth) acrylate is used as a base material of the decorative sheet. It is a decorative molded product whose main component is. As butyl (meth) acrylate, n-butyl (meth) acrylate and i-butyl (meth) acrylate can be used, but it is difficult to block (set off) the ink at the time of printing, and has a point of adhesiveness with the printing ink. Therefore, n-butyl (meth) acrylate is preferable.

In the present specification, it may be referred to as methyl (meth) acrylate {M (M) A. } Means methyl acrylate or methyl methacrylate, and is sometimes referred to as butyl (meth) acrylate {B (M) A. ｝
Shall mean butyl acrylate or butyl methacrylate.

The M (M) A polymer alone can be made into a film as the base material of the decorative sheet, but the flexibility (flexibility),
Hard to handle due to poor impact resistance and solvent resistance. That is,
The M (M) A polymer simple substance is liable to cause film breakage during processing such as gravure multicolor printing, and is a fast-drying organic solvent used for gravure printing such as methyl ethyl ketone, ketone such as acetone, ethyl acetate, butyl acetate, etc. Easily swells and dissolves with ester, and is easily cut by the tension of the sheet during printing. Also, the B (M) A polymer alone has the drawbacks that it is inferior in heat resistance and chemical resistance, and that wrinkles and distortion of the film easily occur during molding such as vacuum molding.

However, a copolymer of M (M) A / B (M) A is suitable as the base material of the decorative sheet. M of the present invention
The copolymer of (M) A / B (M) A is obtained by copolymerizing the monomers in a molar ratio of 55/45 ≦ M (M) A / B (M) A ≦ 75/25. preferable. In particular, the copolymerization ratio is optimally 65/35. If the ratio of M (M) A is higher than the molar ratio within the above range, defects due to the M (M) A polymer component will appear.
When the ratio of (M) A becomes high, defects due to the B (M) A polymer component appear. The degree of polymerization of the copolymer is about 3
It is about 00 to 2000.

Although acrylate and methacrylate can be used as the monomer component, the methacrylate polymer component has a higher softening point than the acrylate polymer component, and is particularly preferable from the viewpoint of emphasizing the surface physical properties of the decorative sheet. Further, especially in order to improve the impact resistance and moldability of the decorative sheet, the acrylate polymer component is better than the methacrylate polymer component. Therefore, from the viewpoint of the balance of surface physical properties, impact resistance, and moldability, it is preferable to use a copolymer containing only methacrylate, or a copolymer containing a methacrylate component as a main component and partially copolymerizing acrylate. Among them, a copolymer of methyl methacrylate and butyl (meth) acrylate is particularly preferable. The best is a copolymer of methyl methacrylate and butyl methacrylate.

When the thickness of the B (M) A / M (M) A copolymer sheet is less than 50 μm, 50 to 250 μm, and more than 250 μm and the various physical properties are examined, the results shown in Table 2 are obtained. Was obtained.

[0014]

[Table 2]

When the thickness of the B (M) A / M (M) A copolymer sheet is less than 50 μm, the breakage of the sheet due to the injection resin during injection molding occurs because of the low sheet strength. . Further, when the thickness exceeds 250 μm, the sheet is torn by the injection resin at the time of injection molding because stress is concentrated on the sheet due to insufficient molding followability. Therefore, as the decorative sheet of the present invention,
The thickness is 50 to 250 μm, and the stress at 200% elongation at 100 ° C. is 20 to 70 kgf / cm ^2.
Is the best performance.

The easily adhesive layer of the present invention is optionally used in the case of simultaneous injection molding and laminating. Injection resin (raw material for molded products)
It is desirable to select a material that has high adhesiveness with both the decorative sheet and the decorative sheet. Acrylic resin when the injection resin is ABS resin /
It is preferable to use a mixture of vinyl chloride / vinyl acetate copolymer = 2/8 to 8/2 (weight ratio) as the easy-adhesion layer. The layer thickness of the easy-adhesion layer is preferably about 1 to 10 μm, and is provided by painting or the like. In this case, as the acrylic resin, an easily adhesive layer such as a (meth) acrylate homopolymer or copolymer exemplified as a binder for the following decorative ink or paint may be colored to form a painting layer.

The decorative sheet of the present invention is decorated by a method such as printing or painting ink or paint on the back surface of the sheet. A method of printing or painting on the entire decorative sheet or a partial pattern printing method may be used. The partial pattern may be a wood grain pattern, a stone grain pattern, a geometric pattern, letters, symbols, etc., or a combination thereof. Alternatively, the metal thin film may be provided on the entire surface or in a partial pattern. The metal is aluminum, chromium or the like, and is provided by a known method such as vacuum deposition.

M (M) A / B (M) A copolymer sheet (decorative sheet) as a binder for decorative ink or paint
A material that has adhesiveness, forms a solid film, and is liquid and suitable for printing and coating is used. For example, polymethyl (meth)
(Meth) acrylic acid such as acrylate, polyethyl (meth) acrylate, polybutyl (meth) acrylate, methyl (meth) acrylate / butyl (meth) acrylate copolymer, ethyl (meth) acrylate / butyl (meth) acrylate copolymer A homopolymer or copolymer of ester is used. Further, vinyl resins such as polyvinyl chloride, polyvinyl acetate, vinyl chloride / vinyl acetate copolymer, polyvinyl butyral and the like can also be used as the binder of the decorative ink or paint. In addition, styrene resins such as polystyrene and poly α-methylstyrene, or styrene copolymers can be used.

The following pigments can be used as coloring agents for decorative inks or paints. As a normal pigment, an azo pigment such as polyazo as a yellow pigment, an organic pigment such as isoindolinone, an inorganic pigment such as yellow lead, an azo pigment such as polyazo as a red pigment, an organic pigment such as quinacridone, and a red pigment Inorganic pigments and blue pigments include organic pigments such as phthalocyanine blue, inorganic patterns such as cobalt blue, black pigments such as aniline black, organic pigments such as carbon black, and white pigments such as titanium dioxide. Inorganic pigments can be used.

The bright pigments include metal powders such as aluminum powder and brass powder, pigments having metallic luster such as metal flakes and cut pieces of metal vapor-deposited synthetic resin film, titanium dioxide-coated mica, fish scale foil, acid chlorides. A pigment having pearl luster or interference luster such as bismuth can be used. Further, as the matte pigment, for example, the particle size is 0.1 to 10 μm.
Approximately m of calcium carbonate, barium sulfate, silica, alumina, glass balloons, fine powder of polyethylene or the like can be used. A known gravure rotary printing method or the like is used as a method for printing the decorative ink or paint.

The molded resin of the present invention is polyvinyl chloride,
Vinyl polymers such as polyvinylidene chloride, polystyrene,
Acrylonitrile styrene, styrene resin such as ABS, polymethyl (meth) acrylate, polyethyl (meth) acrylate, acrylic resin such as polyacrylonitrile, polyolefin such as polyethylene and polypropylene, polyethylene terephthalate, polyethylene terephthalate / isophthalate copolymer, polybutylene Examples thereof include polyester resins such as terephthalate and polycarbonate. These resins may be used alone or in combination of two or more. In addition, a filler, a plasticizer, a heat stabilizer, etc. are added to these resins as needed.

In the present invention, the decorative sheet is M (M) A / B
(M) A copolymer is used, acrylic resin / vinyl chloride / vinyl acetate copolymer = 2/8 to 8/2 (weight ratio) is used for the colored layer, and ABS resin is used as the molding resin. In addition, a molded product was obtained that was inexpensive, had a paint feeling, and had a good layered adhesion. With this configuration, the a. Physical properties during molding such as thermoformability (moderate thermoplasticity), b. Surface properties after molding such as impact resistance, scratch resistance after molding decoration, chemical resistance, and suitability for sheet cutting from molded products,
c. The physical properties of the printability before molding could be improved.

Further, it is preferable to provide an antistatic agent layer on the front surface, the back surface of the decorative sheet, or between the layers of the sheet so that dust does not adhere to the surface of the sheet after the molding step or molding. As the antistatic agent, a surfactant and a conductive metal pigment are added to the binder, and coating and printing are performed.

As a method for attaching the decorative sheet of the present invention to a molded product, the following method can be used. This is a method called an injection molding simultaneous laminating method, and as a typical example, a decorative sheet that has been heated and softened (about 80 to 120 ° C.) in advance is vacuum-molded, air-pressurized (vacuum-pressurized) or vacuum-air-pressed. This is a method in which the female mold and the male mold are combined and then the molten resin is injected from the male mold side after the mold is followed and closely adhered by molding, and the above-mentioned painted sheet is attached to the surface of the injected resin ( (See Japanese Patent Publication No. 50-19132 and Japanese Patent Publication No. 63-6339). In addition, a method of inserting a decorative sheet into a female mold for injection molding after preforming with another mold (Japanese Patent Publication No. 42-17113), or a flat sheet without preforming between male and female molds There is also a method of inserting the sheet and causing the sheet to follow the shape of the mold by heat and pressure at the time of injection (Japanese Patent Publication No. 43-27488).

The decorative sheet is heat-softened (80 to 120).
C.), the air between the molded product and the decorative sheet that has been molded is vacuumed, and the decorative sheet is coated on the molded product by the pressure difference between the decorative sheet and the back of the decorative sheet. At that time, air pressure (compressed air) from the back of the decorative sheet (on the side opposite to the molded product) or pressing with an elastic film may be used in combination (Japanese Patent Publication No. 56-45768, JP-A-5-31743). No.

On each side surface of the rod-shaped molded product, a decorative sheet is attached by rollers whose angles are sequentially shifted, and is attached so as to wrap the entire side surface or a part thereof.
A so-called lapping method (see Japanese Patent Publication No. 59-51900, Japanese Patent Publication No. 61-5895, etc.).

Further, the shape of the molded article of the present invention is usually intended for a maximum drawing ratio of 200% or less. Here, when the flat sheet completely follows and closely adheres to the surface of the molded product shape,
When this is cut in an arbitrary section, the ratio of the section length (line segment length) L of the flat sheet to the sheet section length (curve length) C of the surface of the molded product, C / L × 100 (%), is the drawing ratio of that section. It is defined as Further, the maximum arbitrary drawing ratio of the molded product is defined as the maximum drawing ratio of the molded product.

[0028]

According to the present invention, M (M) A / B is added to the decorative sheet.
By using the (M) A copolymer, a. Thermoformability (moderate
Physical properties at the time of molding, such as excellent thermoplasticity, b. Impact resistance, success
Surface properties after molding such as scratch resistance and chemical resistance after shape decoration
And suitability for sheet cutting from molded articles, c. Printability
The physical properties before molding could be improved. Moreover,
The thickness of the M (M) A / B (M) A copolymer sheet after shaping is
50 to 250 μm and 200 at 100 ° C.
20% to 70 kgf / cm stress during elongation ²What is
Of good moldability and good physical properties after molding were obtained.
Moreover, the molded product with the obtained decorative sheet laminated has a feeling of painting.
And there was good interlayer adhesion.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. Example 1 The method for attaching the decorative sheet to the molded product in this example was the injection molding simultaneous laminating method. (1) Decorative sheet Film: 13 of acrylic resin made of Mitsubishi Rayon Co., Ltd. and made of a copolymer with MMA / BMA copolymerization ratio = 65/35
It has a thickness of 0 μm, and this film is 2
It has a stress of 35 kgf / cm ² at the time of elongation of 00%. Picture layer: A stone pattern (onyx marble pattern) was formed by gravure rotary printing, and full-color solid printing was performed on the film. The ink vehicle for this pattern layer is a mixture of vinyl chloride / vinyl acetate resin / acrylic resin = 1/1 (weight ratio) manufactured by Inktech Co., Ltd., and ethyl acetate: toluene = 1: 1 (weight (Diluted solvent) was used as a solution. The pigment mixed cyanine blue, isoindolinone, and quinacridone.

(2) Molded product ABS resin "TS-20" (trade name) manufactured by Mitsubishi Rayon Co., Ltd. was used. Further, the female mold shape is as shown in FIG.
Maximum drawing ratio = 198% (the shape of the molded product is reversed from this)
The iron mold of was used.

Next, the molding process will be described. 1 to 4 are views showing the procedure of the molding method of this embodiment. First, the decorative sheet 1 was formed as a long strip-shaped sheet, and the wound sheet was prepared. The decorative sheet 1 is unwound for one shot of the molded product from the winding and stopped at a predetermined position on the front surface of the molding cavity 3 of the female mold 2 as shown in FIG.
Then, as shown in FIG. 2, the heating plate 7 having the heating plate 6 supported by the ram 5 is moved from the standby position outside the mold to the front surface of the molding cavity 3 of the female mold 2. Since a peripheral wall 9 surrounding the heating plate 6 is provided in the peripheral portion of the heating plate 7, the decorative sheet 1 is fixedly held by the partitioning peripheral wall 9 and decorated with the heating plate 6 of the heating plate 7. Radiant heat from the surface of the heating plate 6 is applied to the decorative sheet 1 while keeping the distance between the sheets 1 at a constant distance to heat and soften the sheet 1. Here, the pattern layer of the decorative sheet 1 was heated toward the heating plate 6 side. The heating conditions at this time were that the surface temperature of the heating plate 6 was 180 ° C., the distance between the heating plate 6 and the decorative sheet 1 was 15 mm, the heating time was 10 seconds, and the surface temperature of the decorative sheet 1 was 110 ° C.

Next, as shown in FIG. 3, the female mold 2 provided at the tip of the ram 11 is provided with a molding cavity 3 and a large number of suction holes 12 having openings in the molding cavity 3. 12 is sucked through a suction pipe 13 by a vacuum pump (not shown). Using this female mold 2, the decorative sheet 1 which has already been heated and softened is sucked onto the surface of the female mold 2 by a vacuum suction from the air intake hole 12 by air pressure difference and preformed. FIG. 3 is a diagram showing a state at the time of completion of preforming. Also, in FIG.
Shows a state in which the male die 15 is moving toward the female die 2 apart from the preformed portion of the decorative sheet 1. Core 1
The male die 15 having 6 and the sprue 17 is provided at the tip of the resin injection nozzle 21 of the molding apparatus 19.

Next, as shown in FIG. 4, a female mold 2 and a male mold 1
5, the mold is further clamped, and the molten ABS resin P is injected and filled from the gate 17 through the nozzle 21 provided in the male mold 15 in the molding cavity 3 between the two molds, and then cooled and solidified as it is. It was The injection condition for the molten ABS resin P is nozzle temperature 2
30 ℃, mold temperature 50 ℃, injection pressure 1500kg / cm
^2. Molding time is 75 seconds. Then, the injection resin was cooled and solidified, both molds were opened, and a molded product having the decorative sheet 1 bonded to the surface thereof was obtained.

Example 2 As the base material of the decorative sheet 1, a sheet having an MMA / BMA copolymer resin thickness of 30 μm and a stress of 18 kg / cm ² at 200% elongation at 100 ° C. was used. The conditions of the clavia printing and the molding process are the same as in Example 1.

Example 3 As the base material of the decorative sheet 1, a sheet of MMA / BMA copolymer resin having a thickness of 300 μm and a tensile stress of 85 kg / cm ² at 200% elongation at 100 ° C. was used. The conditions of the clavia printing and the molding process are the same as in Example 1.

Comparative Example 1 As the base material of the decorative sheet 1, a 130-μm thick sheet of MMA homopolymer resin was used. Printing was performed using the same ink as in Example 1 under the same conditions, but the decorative sheet 1 swelled and dissolved due to the diluting solvent in the ink and was cut at the plate cylinder for gravure rotary printing and wrapped around the plate cylinder to make printing impossible. It was Further, the sheet 1 itself was fragile, and the sheet 1 was liable to be broken by the sheet conveying tension before entering the plate cylinder. Therefore, the subsequent steps were abandoned.

Comparative Example 2 A 130 μm thick sheet of BMA homopolymer was used and processed under the same conditions as in Example 1. The obtained results are shown in Table 3 and Table 4.
Shown in

[0038]

[Table 3]

[0039]

[Table 4]

In Tables 3 and 4, the stress of the decorative sheet 1 as a base material is a value when the stress is extended by 100 ° C. and 200%. A supplementary explanation will be given to Tables 3 and 4. In these tables, ◯ means good, Δ means slightly bad, and × means bad.

First, regarding the moldability, the decorative sheet 1 in Example 1 completely followed the moldability in the preformability. Further, after injection molding, the decorative sheet 1 did not flow or break due to the heat flow of the injection resin, and the decorative sheet 1 faithfully reproduced the shape of the molding die and had good moldability.
In Example 2 having a small thickness, although wrinkles were partially observed in the decorative sheet 1 at the uneven portion of the female mold 2 during preforming,
It was possible to preform on the female mold surface. After the injection molding, the sheet 1 on the surface of the molded product was torn and a trace of fluid wrinkles was observed.

In the third embodiment, the sheet 1 does not break during preforming, but the sheet 1 is too thick to follow the uneven shape of the mold. In particular, the sheet 1 portion corresponding to the recessed portion of the female die 2 was floated, and after injection molding, the sheet 1 in the portion that had been floated from the female die 2 was broken in the preform, and the sheet 1 was cut into the molded article.

The gravure rotary printing suitability of the sheet 1 was good in Example 1 without cutting the sheet 1.
Further, in Example 2, the sheet 1 was occasionally torn or cut during printing. In Example 3, as in Example 1, the sheet 1 was not broken and was good. Further, gravure rotary printing was performed for Comparative Example 1, but the sheet 1 was cut during printing,
Swelled and softened sheets often wind around the plate cylinder,
Printing was not practically possible. In addition, by visual observation, the decorative molded articles obtained in the examples of the present invention had good surface smoothness and transparency, and had a coated feeling.

Next, from Example 1 to Comparative Example 2, the maximum aperture ratio =
A 120% mold (the shape is the same as in FIG. 1) was used. The other conditions are the same as in Example 1 to Comparative Example 2. These are referred to as Example 1A to Comparative Example 2A, and the results are shown in Table 5.

[0045]

[Table 5]

In the table, ◯ means good, Δ means slightly bad, and ×.
Represents a defect. However, Δ of the moldability after injection molding of Example 2A means that wrinkles were somewhat generated but there was no breakage, and × of the moldability after injection molding of Comparative Example 2A means that the flow strain of the sheet was large. Show. In addition, Example 1A
From Comparative Example 2A, the impact resistance of the laminated molded article, the surface properties of the laminated molded article (solvent resistance and scratch resistance), and the sheet gravure rotary printing suitability are the same as those of the corresponding Example 1 to Comparative Example 2 in Table 4. Since they were the same, they are not described here.

[0047]

EFFECTS OF THE INVENTION According to the present invention, a molded article having good surface smoothness and transparency, being inexpensive, having a coated feeling, and having good interlayer adhesion can be obtained. Also, a. Physical properties during molding such as thermoformability (moderate thermoplasticity), b. Surface properties after molding such as impact resistance, scratch resistance after molding decoration, chemical resistance, etc., and suitability for sheet cutting from a molded product, c. It is possible to obtain a molded product having a property that the printability of the material before molding is improved.

[Brief description of drawings]

FIG. 1 is a diagram of a stage of preforming a decorative sheet on a female mold in a step of forming a decorative molded product according to an embodiment of the present invention.

FIG. 2 is a diagram of a step of heating a decorative sheet with a heating plate in a step of forming a decorative molded article according to an embodiment of the present invention.

FIG. 3 is a diagram of a preforming completion stage in a forming process of a decorative molded product according to an embodiment of the present invention.

FIG. 4 is a diagram of stages of mold clamping and molten resin in a molding process of a decorative molded product according to an embodiment of the present invention.

[Explanation of symbols]

1 ... Decorative sheet, 2 ... Female mold, 3 ... Mold cavity, 5, 11 ...
Ram, 6 ... Heating plate, 7 ... Hot plate, 9 ... Isolation peripheral wall, 12 ... Intake hole, 13 ... Intake pipe, 15 ... Male type, 16 ... Core, 17 ...
Gate, 19 ... Molding device, 21 ... Nozzle for resin injection

Claims (4)

[Claims] 1. A decorative molded product obtained by laminating a decorative sheet on a resin molded product on the surface of the molded product, wherein a base material of the decorative sheet is a copolymer of methyl acrylate and butyl acrylate, and methyl acrylate. A decorated molded article comprising a copolymer of butyl methacrylate, a copolymer of methyl methacrylate and butyl acrylate, or a copolymer of methyl methacrylate and butyl methacrylate as a main component. 2. The decorative sheet has a thickness of 50 to 250.
The decorative molded article according to claim 1, wherein the decorative molded article has a thickness of 20 μm and a stress at 200 ° C. elongation of 100 ° C. of 20 to 70 kgf / cm ² . 3. The decorative molded article according to claim 1, which has an antistatic agent layer on the front surface, the back surface of the decorative sheet or between the sheet internal layers. 4. The decorative sheet has a molded product side of acrylic resin /
The additive according to any one of claims 1 to 3, which has an easy-adhesion layer made of a mixture of vinyl chloride / vinyl acetate copolymer, and the molded article contains at least an ABS resin as a main component. Decorative molded product.