JPH11227115A - Resin laminate with ground glass tone surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture efficiently a resin sheet having a ground glass tone surface by laminating an extremely thin transparent resin layer in which high concentration resin crosslinking particles are dispersed on the surface of the transparent resin sheet. SOLUTION: A transparent resin layer having 0.01-0.11 refractive index difference different from that of transparent resin and 15-40 wt.% dispersed resin crosslinking particles of 4-50 μm weight average particle diameter is laminated at least one face of the transparnet resin in the 5-100 μm thickness. A resin laminate with the ground glass tone surface can be formed efficiently and a mat-network face of fine recessed and projected pattern on the surface of the laminate is not eliminated the thermoforming by the arrangement, and the good resin bonding strength can be provided in the case of bonding incorporation processing using a solvent type bonding agent for the display of various kinds of store decorations.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a wide range of applications such as signboards, various displays for stores, equipment nameplates, display boards, and the like. About.

[0002]

2. Description of the Related Art Conventionally, an organic or inorganic light scattering agent is dispersed in a transparent resin such as a methacrylic resin, a styrene resin, or a polycarbonate to scatter light rays inside the resin, or a fine uneven pattern is formed on the transparent resin surface. Is formed, and the light is irregularly reflected on the uneven surface to give the appearance of a frosted glass surface, which is used for applications such as lighting covers, signboards, and glazing. The method of forming a fine uneven pattern on the surface of a transparent resin plate is as follows: (a) In general, a matte roll (a roll having a fine uneven surface on the surface) is used as a polishing roll during the production of an extruded plate. (2) A method of blending inorganic fine powders such as talc, calcium carbonate, mica, and muscovite with a transparent thermoplastic resin and kneading and extruding the mixture (Japanese Patent Application Laid-Open No.
147748, JP-A-57-153047, JP-A-63-216723, JP-A-5-09
No. 2529), (c) a method of blending an organic crosslinked polymer with a thermoplastic resin and kneading and extruding the mixture (JP-A-55-747).
No. 1, JP-A-56-36535, and JP-A-Hei-01
-287161, JP-A-04-18346) and the like.

However, when a resin plate obtained by a method of transferring a roll mat surface is subjected to thermoforming, the uneven surface disappears, and as a result, gloss becomes high and the texture of frosted glass is lost. Also, in the method using additives such as inorganic fine powder,
In order to obtain a desired ground glass texture, it is necessary to add a large amount of additives. In that case, the total light transmittance is lowered and the transparency is impaired, which is disadvantageous. Furthermore, when a resin plate is incorporated into a display for various stores using a solvent-type adhesive, there is a disadvantage that a large amount of inorganic fine powder additives on the surface of the resin plate lowers the adhesive strength. Also, the method of kneading and extruding an organic cross-linked polymer requires addition of a large amount of additives in order to obtain a desired ground glass-like texture, which is economically inferior.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems caused by using a large amount of additives without losing the texture of frosted glass even by thermoforming, and at the time of solvent type bonding. The purpose of the present invention is to provide a resin laminate having a frosted glass-like surface for improving the adhesive strength in the above.

[0005]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventor has used resin crosslinked fine particles having a refractive index and a specific particle diameter different from those of the transparent resin substrate on the surface layer of the substrate. Advantageously, the present invention has been found to achieve the object by laminating a transparent resin layer containing a certain amount and uniformly dispersed, preferably in combination of two kinds.

That is, the present invention provides: a transparent resin substrate having at least one surface having a refractive index difference from the transparent resin of 0.01 to 0.11 and a weight average particle diameter of 4;
Provided is a resin laminate having a ground glass-like surface in which a transparent resin layer in which resin crosslinked particles having a particle size of ５０50 μm is dispersed by 15 to 40% by weight is laminated at a thickness of 5 to 100 μm. Further, at least one surface of the transparent resin substrate has a weight average particle diameter ratio (A) / (B) of 0.7 or less and a mixing ratio of 20/80 to 80/20 of the following two types of resin crosslinked particles. 5 to 100 μm of a transparent resin layer dispersed in an amount of 40% by weight
To provide a resin laminate having a more preferable ground glass surface. Further, (i) the difference in refractive index from the transparent resin is 0.03 to 0.11, the weight average particle diameter is 1 to 10 μm (A), and (ii) the difference in refractive index from the transparent resin is 0.
00-0.11 and weight average particle diameter is 10-50 μm
(B) It is also characterized in that the crosslinked resin particles are bead-shaped styrene-acrylic crosslinked copolymers. Another characteristic is that the transparent resin is a methacrylic resin. It is also characterized in that the average surface roughness of the laminate is 0.5 to 1.5 μm, the glossiness is 25% or less, the total light transmittance is 75 to 91%, and the haze value is 50 to 90%. .

Hereinafter, the present invention will be described in detail. The laminate of the present invention is basically composed of a transparent resin layer in which a certain amount of specific resin crosslinked particles is dispersed on at least one surface of a transparent resin substrate. (1) Transparent resin: 1) The transparent resin in the present invention is defined as a resin having a small amount of light loss due to light scattering or diffusion and having a haze of 10% or less measured according to JIS K-7105. . Specific examples of the transparent resin include sheets of methacrylic resin, polycarbonate resin, styrene-based resin, styrene-butadiene resin, vinyl chloride resin, and the like. Particularly preferred is methacrylic resin.

The methacrylic resin is a resin mainly composed of methyl methacrylate, and is a homopolymer thereof; or methyl methacrylate and methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, butyl acrylate, acrylonitrile, acrylic acid, Methacrylic acid, vinylpyridine, vinylmorpholine, vinylpyridonetetrahydrofurfuryl acrylate, N, N-dimethylaminoethyl acrylate,
Copolymer with any one or more of copolymerizable monomers such as N, N-dimethylacrylamide, 2-hydroxyacrylate, ethylene glycol monoacrylate, glycerin monoacrylate, maleic anhydride, styrene or α-methylstyrene: Heat-resistant acrylic resin: A low moisture-absorbing acrylic resin or the like is included, and these may be used alone or may be used by blending with each other.

2) The methacrylic resin can be obtained by a known polymerization method such as a bulk polymerization method, a suspension polymerization method, an emulsion polymerization method, and a solution polymerization method. In order to maintain transparency and simultaneously provide impact resistance, an impact-resistant methacrylic resin is used, and rubber elastic bodies constituting the resin are disclosed in JP-A-53-58554 and JP-A-55-94917. And JP-A-61-32346. Briefly, it is a multi-stage polymer produced by a multi-stage sequential polymerization method in which an elastic layer and an inelastic layer are alternately formed around a methacrylic polymer core material. 3) The molding method of the transparent resin substrate of the present invention is not particularly limited, but can be easily obtained by using, for example, an extrusion sheet molding method using a T-die.

4) At least one of the transparent resin substrates of the present invention
The transparent resin layer laminated on the other surface may be the same as the transparent resin substrate, or may be different. Preferably, it is the same as the transparent resin substrate. 5) The transparent resin substrate and the transparent resin layer to be laminated are:
Depending on the purpose of use, dyes, pigments, lubricants, heat stabilizers, ultraviolet absorbers, and anionic to impart antistatic performance,
An additive such as a cationic or nonionic surfactant may be blended.

(2) Crosslinked resin particles: The crosslinked resin particles dispersed in the transparent resin layer to be laminated according to the present invention have a limited refractive index difference between the refractive index of the laminated transparent resin layer and the organic resin particles and the particle size. Therefore, it is deeply involved in light scattering, and greatly affects the texture of a frosted glass-like appearance having a soft appearance. 1) The crosslinked resin particles of the present invention have a refractive index difference of 0.01 to 0.11 and a weight average particle size of 4 to 50 μm from the transparent resin, from the viewpoint of light scattering property as a frosted glass. is necessary.

When the difference in the refractive index between the transparent resin and the transparent resin is as small as less than 0.01, the light scattering property is small because the light refraction at the interface between the transparent resin and the organic resin particles is small. It is not preferable because it shows through. On the other hand, when the refractive index difference is larger than 0.11, the light scattering at the interface between the transparent resin and the organic resin particles is large, so that the light scattering property is large, and the obtained laminate has a frosted glass effect. However, if the refractive index difference is too large, the total reflection at the interface of the resin increases, and the light transmittance decreases, which is not preferable. Preferably, the absolute value of the refractive index difference between the transparent resin and the resin-crosslinked particles is 0.03 to 0.0 in terms of balance between light scattering and the effect of reducing the influence of stray light.
9, more preferably 0.04 to 0.08.

2) The crosslinked resin particles have a weight average particle diameter of 4
物 50 μm, preferably 6-30 μm, is used alone dispersed in 15-40 wt%, preferably 17-25 wt%. In the crosslinked resin particles, the size of the unevenness forming a fine uneven pattern on the surface of the transparent resin plate and the refractive index of the fine particles with respect to the transparent resin greatly affect the light scattering property of light rays. In order to obtain a frosted glass texture with a soft appearance, it is preferable to use a particle having a small particle diameter when the refractive index difference is large, and a particle having a large particle diameter when the refractive index difference is small.

3) More preferably, the difference in refractive index from the transparent resin is 0.03 to 0.11, and the weight average particle diameter is 1
10 μm (A) and the refractive index difference with the transparent resin is 0.0
1 to 0.11 and weight average particle diameter of 10 to 50 μm
Two types of (B) are used in combination. The weight average particle diameter ratio (A) / (B) is 0.7 or less, and the compounding ratio is 2
It is preferably 0/80 to 80/20, and preferably 15 to 40% by weight. By using two kinds of resin crosslinked particles in combination, the effect of lowering the glossiness is greater than when using only one kind.

4) When two kinds of resin crosslinked particles are used in combination, relatively fine resin crosslinked particles (A) having a weight average particle diameter of 1 to 10 μm are laminated and transparent to enhance light scattering. Those having a large refractive index with the resin are preferred. Particularly preferably,
Refractive index difference is 0.05-0.1, weight average particle diameter 4-8μ
m. If the weight average particle size is smaller than 1 μm, the effect of forming a mat having a fine uneven pattern is small, which is not preferable. If it exceeds 10 μm, the effect of using two types in combination is undesirably reduced.

Further, the weight average particle diameter is 10 to 50 μm.
The relatively large crosslinked resin particles (B) affect the size of the fine irregularities on the surface of the laminated resin. Weight average particle size is 50
When it is larger than μm, it is preferable to have a large influence on the light scattering property and a small refractive index with the laminated transparent resin. In order to obtain an appropriate appearance feeling, the difference in refractive index is 0.01 to 0.11,
The weight average particle size is preferably 12 to 30 μm. If the weight average particle diameter exceeds 50 μm, the uneven pattern becomes coarse and coarse, and the appearance and texture of ground glass are unfavorably deteriorated. Particularly preferred weight average particle size is 15 to 20.
μm.

5) By mixing and combining two kinds of resin crosslinked particles (A) and (B) having different weight average particle diameters at the same time, a laminated resin sheet having the most preferable appearance and texture of frosted glass can be obtained. Can be Therefore, (a) weight average particle size 1 to
10 μm crosslinked resin particles (A) and weight average particle diameter of 10 to 5
Weight average particle size ratio of crosslinked resin particles (B) of 0 μm (A) /
(B) is 0.7 or less and (b) the compounding ratio is 20/80 to 8
It is necessary to use 0/20. (A) When the weight average particle diameter ratio (A) / (B) exceeds 0.7,
A desired frosted glass-like laminated resin plate with a textured appearance cannot be obtained. The most preferred weight average particle size ratio is 0.6 or less. (B) Further, when the compounding ratio is other than 20/80 to 80/20, a desired frosted glass-like appearance of the laminated resin sheet cannot be obtained. Furthermore, preferably 30/60 to 60/30
It is.

6) The crosslinked resin particles used in the present invention are crosslinked silicone resin beads, crosslinked acryl-styrene copolymer, crosslinked styrene resin beads, and crosslinked polymethyl methacrylate beads. In addition, about the shape,
Various shapes such as a true spherical shape, an elliptical shape, a rectangular parallelepiped, a triangular pyramid, a rectangular shape, and a scale shape can be used. Particularly preferred is a styrene-acrylic cross-linked copolymer bead-shaped one in which the refractive index difference from the transparent resin can be arbitrarily adjusted. The styrene-acrylic crosslinked copolymer particles are spherical fine particles obtained by polymerizing a styrene monomer, methyl methacrylate, and a crosslinking agent by a suspension polymerization method or the like. As the crosslinking agent, generally, various polyfunctional monomers such as ethylene glycol dimethacrylate, divinylbenzene, 1,6-hexanediol, and trimethylpropane trimethacrylate can be used. By changing the polymerization ratio of the styrene monomer and methyl methacrylate of the resin crosslinked particles to 0: 100 to 100: 0, the resin crosslinked particles can be arbitrarily adjusted to have a refractive index in the range of 1.49 to 1.59. I can do it.

7) The dispersion amount of the resin crosslinked particles in the transparent resin layer laminated on the surface of the transparent resin plate in the present invention is 15 to 4
0% by weight. If the amount of dispersion is less than 15% by weight, the effect of forming matte streaks on the surface of the resin laminated on the transparent resin plate is small, and it is necessary to increase the lamination thickness. On the other hand, if the amount of dispersion exceeds 40% by weight, a problem occurs in uniform mixing with the transparent resin, poor dispersion occurs, and it is difficult to form a uniform laminated surface.
Particularly preferably, it is 17 to 25%.

(3) Transparent resin layer: The laminated thickness of the transparent resin laminated on the surface of the transparent resin plate in the present invention is 5 to 10
0 μm, preferably 10 to 50 μm. If the lamination thickness is less than 5 μm, a good mat shape cannot be obtained. On the other hand, if the lamination thickness exceeds 100 μm, even if the lamination thickness is increased, the surface properties such as the matte state and glossiness of the surface are hardly improved, which is disadvantageous in cost. Particularly preferably, 1
5 to 30 μm. The transparent resin to be laminated on the surface of the transparent resin substrate in the present invention may be laminated on either one side or both sides.

(4) Laminated plate 1) The resin laminated plate of the present invention has a laminated surface having an average roughness of 0.
Those having a thickness of 5 to 1.5 μm, a gloss of 25% or less, a total light transmittance of 75 to 91%, and a haze value of 50 to 90% are preferred. When the average roughness of the laminated surface is less than 0.5 μm, the appearance of the laminated surface is high in smoothness, a good mat shape cannot be obtained, and the glossiness is 25% or more. On the other hand, when the average roughness of the laminated surface exceeds 1.5 μm, the pattern of the uneven surface of the laminated surface becomes coarse and coarse, and the laminated resin sheet having a desired frosted glass appearance since the soft external appearance is impaired. Can not be obtained. Particularly preferred average roughness of the laminated surface is 1 ± 0.3 μm. When the total light transmittance is out of the range of 75 to 91% and the haze value is out of the range of 50 to 90%, a laminated resin sheet having a desired ground glass appearance cannot be obtained.

2) The thickness of the laminate obtained according to the present invention is 1.5 to 15 mm in consideration of use in applications such as signboards and displays, but is not particularly limited to this range. The shape of the laminated plate is usually a flat plate, but is not particularly limited. For example, a deformed plate having a curved shape may be appropriately selected depending on the intended use. The thickness of the transparent resin plate and the lamination thickness can be arbitrarily obtained by adjusting the resin discharge amount of two or more extruders, the lip opening of the die, the sheet width, and the roll clearance. 3) A method of obtaining a laminate of the present invention is a method of simultaneously extruding (co-extrusion) a transparent resin plate and a resin in which resin crosslinked particles are dispersed using two or more extruders and forming the laminate using a multilayer die. This is a preferred method from the viewpoint of continuous integrated productivity and quality uniformity. It is preferable that the laminated resin formed by co-extrusion is uniformly mixed and pelletized by controlling the desired resin, refractive index, particle size and dispersion amount of the organic resin particles in advance, and then used as a raw material.

[0023]

EXAMPLES The present invention will be described below in more detail with reference to Examples and Comparative Examples, which do not limit the scope of the present invention. In addition,
The evaluation and test methods used in each example and comparative example are as follows. (1) Measurement of refractive index: ATAGO Abbe refractometer Ty
Measured using sodium D line using pe3. (2) Measurement of particle size: The weight average particle size is determined using a centrifugal automatic particle size distribution analyzer Type CAPA-700 manufactured by Horiba, Ltd. (3) Lamination thickness: Determined by observing the cross section of the lamination sheet under magnification with an optical microscope. (4) Total light transmittance: A 100-DP type haze meter manufactured by Nippon Denshoku Industries according to JIS K-7105 is used. (5) Gloss: Measured at an angle of specular gloss of 60 ° according to JIS K-8741.

(6) Thermoforming: Using a hat-shaped vacuum forming mold (having a size of 100 mmφ and a height of 50 mm), the sheet is heated to a surface temperature of 160 ° C. to perform vacuum forming. (7) Solvent adhesive strength: A test piece was cut into 100 mm x 50 mm, the cut surface of 100 mm was mated with the mat surface at a right angle, and methylene dichloride was adhered as a solvent-type adhesive, and after 72 hours, it was compressed to the right-angled adhesive surface. Apply force and measure the breaking strength of the bonded surface. (8) Ground glass: Total light transmittance is 75 to 91%, cloudiness value (scattered light transmittance 透過 total light transmittance × 100) is 5.
Those within the standard of 0 to 85% are defined as good. (9) Average roughness of the surface of the resin laminate: The center line average roughness (Ra: JISB0601-1982) is determined using a surface roughness profile measuring instrument (Surfcom 570A type) manufactured by Tokyo Seimitsu Co., Ltd.

[0025]

Examples 1 to 4 (Preparation of Laminating Resin with Resin Cross-Linked Particles Dispersed) A prescribed amount of the resin cross-linked particles shown in Table 1 was blended into a methacrylic resin (Del Powder 70H, manufactured by Asahi Kasei Kogyo Co., Ltd.), and the mixture was preliminarily tumbled. After mixing, the mixture was uniformly dispersed using a 30 mm pelletizer to form a pellet. (Preparation of a co-extruded resin laminate) A methacrylic resin (Delpet LP-1 manufactured by Asahi Kasei Kogyo Co., Ltd.) was used for the transparent resin plate.
The resin in which the resin crosslinked particles are dispersed is supplied to an extruder having a diameter of 30 mm using the above pelletized resin, and is simultaneously extruded to obtain a mixture of two types of 3
The laminate was laminated using a layer die, and then passed through three rolls to obtain a laminate having a ground glass-like texture. The thickness of the laminated plate was adjusted by adjusting the discharge rate of an extruder having a diameter of 50 mm and an extruder having a diameter of 30 mm, and the total thickness was set to 2 mm, and the laminated thickness of the front and back surface layers was set to 5 m to 50 m. For the obtained laminate, total light transmittance, scattered light transmittance, gloss,
The thermoforming, solvent adhesive strength, etc. were measured and evaluated, and the results are summarized in Table 2. A laminate having a small change in the matte grain and a good solvent adhesion even when subjected to thermoforming with a frosted glass tone is obtained.

[0026]

Comparative Examples 1 to 5 (Preparation of Laminating Resin in which Resin Fine Particles are Dispersed) A prescribed amount of resin fine particles or talc shown in Table 1 was blended with methacrylic resin (Del Powder 70H, manufactured by Asahi Kasei Kogyo) in the same manner as in Example. This was premixed with a tumbler, and then uniformly dispersed using a 30 mm pelletizer to form a pellet. (Preparation of a co-extruded laminated plate) Under the same conditions as in the example, a resin in which the above-mentioned resin cross-linked particles and the like are dispersed is simultaneously extruded, and two kinds of three kinds are obtained.
A laminated sheet of layers was obtained. About the obtained resin laminate,
The total light transmittance, the scattered light transmittance, the gloss, the thermoforming, and the solvent adhesive strength were measured and evaluated, and the results are shown in Table 2. Comparative Example 1 is not preferable because talc, which is an inorganic fine powder, is used, so that the solvent adhesive strength is greatly reduced. Comparative Example 2
When there is no difference in the refractive index between the transparent resin and the resin crosslinked particles, a transparent sheet is obtained, and a resin laminated sheet having a ground glass surface cannot be obtained. In Comparative Example 3, since the average particle size of the resin cross-linked particles was large, the surface became coarse and uneven, and a resin laminate having a good ground glass surface could not be obtained. In Comparative Example 4, the blending amount of the resin crosslinked particles is not appropriate. In Comparative Example 5, the lamination thickness is not appropriate, and a resin laminate having a good ground glass surface cannot be obtained.

[0027]

[Table 1] (Note) Tospal: Techpolymer manufactured by Toshiba Silicone Co., Ltd .: Sekisui Plastics Co., Ltd. Crosslinked paste: Acrylic-styrene copolymer crosslinked paste.

[0028]

[Table 2]

[0029]

Examples 5 to 7 (Preparation of Laminating Resin with Resin Cross-Linked Particles Dispersed) Two kinds of resin cross-linked particles shown in Table 3 were blended in methacrylic resin (Del Powder 70H, manufactured by Asahi Kasei Kogyo Co., Ltd.) and tumbled. And then uniformly dispersed using a 30 mm pelletizer to form a pellet. (Preparation of a co-extruded resin laminate) A methacrylic resin (Delpet LP-1 manufactured by Asahi Kasei Kogyo Co., Ltd.) was used for the transparent resin plate.
mm extruder, the resin in which two kinds of resin cross-linked particles are dispersed, the pelletized one is supplied to a 30 mm extruder, and each is simultaneously extruded and laminated using a two-type three-layer die, Thereafter, a laminated sheet having a ground glass-like texture was obtained through three rolls. The thickness of the laminated sheet was adjusted by adjusting the discharge rate of an extruder having a diameter of 50 mm and an extruder having a diameter of 30 mm, and the total thickness was set to 2 mm, and the thickness of the laminated layer of the front and back surface layers was set to 15 μm. The obtained laminate was measured and evaluated for total light transmittance, scattered light transmittance, gloss, thermoforming, solvent adhesive strength, and the like. The results are shown in Table 4. A laminate having a frosted glass tone and good solvent adhesion is obtained.

[0030]

Comparative Example 6 (Preparation of Laminating Resin with Resin Fine Particles Dispersed) A methacrylic resin (manufactured by Asahi Chemical Industry:
Del powder 70H) was blended with two specified amounts of the resin crosslinked particles shown in Table 3 and preliminarily mixed with a tumbler.
The mixture was uniformly dispersed using a 0 mm pelletizer to form a pellet. (Preparation of a co-extruded laminated plate) Under the same conditions as in the example, a resin in which the above-mentioned resin crosslinked particles were dispersed was co-extruded to obtain a laminated sheet of two types and three layers. For the obtained resin laminate, total light transmittance, scattered light transmittance, gloss, thermoforming, solvent adhesive strength, and the like were measured and evaluated. The results are shown in Table 4. A resin laminate having a good frosted glass-like surface cannot be obtained.

[0031]

[Table 3] (Note) Tospar: Techpolymer by Toshiba Silicone Co., Ltd .: Sekisui Plastics

[0032]

[Table 4]

[0033]

As described above, by laminating a transparent resin in which a high concentration of resin crosslinked particles are dispersed on an extremely thin layer on the surface of a transparent resin substrate, a resin laminate having a ground glass surface can be efficiently obtained. (B) that the matte surface of the fine uneven pattern on the surface of the laminate does not disappear even by thermoforming;
The resin adhesive strength is not reduced even in the case of bonding and processing with a solvent type adhesive for various store display applications.

Claims (5)

[Claims] 1. A method according to claim 1, wherein at least one surface of the transparent resin substrate has resin-crosslinked particles having a refractive index difference of 0.01 to 0.11 and a weight average particle diameter of 4 to 50 μm, which are 15 to 40 μm.
A resin laminate having a ground glass-like surface, wherein a transparent resin layer dispersed by weight% is laminated with a thickness of 5 to 100 μm. 2. The weight average particle diameter ratio of the following two types of resin crosslinked particles on at least one surface of a transparent resin substrate.
(A) / (B) is 0.7 or less, and the blending ratio is 20 / 80-
5/40% by weight of the transparent resin layer dispersed in 80/20
A resin laminate having a ground glass-like surface, wherein the resin laminate has a thickness of 100 μm. (i) resin-crosslinked particles (A) having a refractive index difference from the transparent resin of 0.03 to 0.11 and a weight average particle size of 1 to 10 μm,
(ii) Crosslinked resin particles (B) having a refractive index difference from the transparent resin of 0.00 to 0.11 and a weight average particle diameter of 10 to 50 µm.
, 3. The resin laminate having a frosted glass-like surface according to claim 1, wherein the crosslinked resin particles are a styrene-acrylic crosslinked copolymer in a bead shape. 4. The resin laminate according to claim 1, wherein the transparent resin is a methacrylic resin. 5. The laminated surface has an average roughness of 0.5 to 1.5 μm.
m, gloss is 25% or less, and total light transmittance is 75 to 91.
%, Having a cloudiness value of 50 to 90%,
A resin laminate having a ground glass surface according to any one of claims 1 to 4.