JP2012223968A - Resin laminate - Google Patents

Abstract

The present invention provides a resin laminate that does not cause adverse effects during processing even when exposed to high temperature and high humidity, and is excellent in impact resistance, pencil hardness, transparency, and weather resistance.
In a resin laminate sheet in which an acrylic resin having a thickness of 40 to 120 μm is laminated on one side of a polycarbonate resin sheet made of a resin material containing polycarbonate resin as a main component, on an acrylic resin layer or on an acrylic resin layer And a resin laminate having a total thickness of 0.5 to 2.0 mm in which a hard coat layer having a thickness of 1 to 20 μm is laminated on the polycarbonate-based resin layer, wherein (A) specific 0.005 to 0.5 parts by weight of a phosphorus compound, (B) 0.005 to 0.5 parts by weight of a specific phenol compound, and (C) a specific phosphorus compound and / or a specific hindered amine compound And 0.005 to 1.0 parts by weight of a resin laminate.
[Selection figure] None

Description

  The present invention relates to a resin laminate. More specifically, the present invention relates to a resin laminate having excellent moisture and heat resistance, impact resistance, pencil hardness, transparency, and weather resistance, in which an acrylic resin layer and a hard coat layer are laminated on one side of a polycarbonate resin sheet.

  Since the polycarbonate resin sheet is excellent in transparency, heat resistance, and mechanical strength, it is used for displays of OA / electronic devices, touch panels, and the like. However, since the polycarbonate resin sheet is soft and easily damaged, surface properties such as scratch resistance are usually improved by coating the polycarbonate resin sheet surface. As its method, it is generally known to perform a hard coat treatment, but since the polycarbonate resin sheet itself is very easily damaged, the scratch resistance obtained by the hard coat treatment is only about F in pencil hardness, There is a problem that the scratches once made stand out well.

  Therefore, in order to improve the surface characteristics, a method is known in which an acrylic resin layer is laminated on a polycarbonate resin sheet and a hard coat treatment is performed on the acrylic resin layer (for example, Patent Documents 1 to 3). This is excellent in scratch resistance and pencil hardness, but under high temperature and high humidity, there is a problem that the warping that the acrylic resin layer surface side becomes concave occurs, which adversely affects the processing step. In addition, a method of copolymerizing a hydrophobic resin in order to suppress moisture absorption of the acrylic layer is known (for example, Patent Document 4), but it is not suitable for applications requiring pencil hardness.

JP 2006-103169 A JP 2007-237700 A JP 2008-049623 A JP 2009-196125 A

  Accordingly, an object of the present invention is to provide a resin laminate that is not adversely affected during processing even when exposed to high temperature and high humidity, and that is excellent in impact resistance, pencil hardness, transparency, and weather resistance. .

  As a result of intensive studies to solve the above problems, the inventors have laminated an acrylic resin having a thickness of 40 to 120 μm on one side of a polycarbonate resin sheet made of a resin material mainly composed of a polycarbonate resin, and In a resin laminate in which a hard coat layer is laminated on an acrylic resin layer or on an acrylic resin layer and a polycarbonate resin layer, by adding a specific amount of a specific compound to the acrylic resin layer, it can be used at high temperature and high humidity. The present inventors have completed the present invention by finding a new fact that the deformation of the resin laminate due to volatilization of the acrylic monomer is prevented, and excellent impact resistance, pencil hardness and transparency are obtained.

That is, according to the present invention,
1. In a resin laminated sheet in which an acrylic resin having a thickness of 40 to 120 μm is laminated on one side of a polycarbonate resin sheet made of a resin material containing polycarbonate resin as a main component, on the acrylic resin layer or on the acrylic resin layer and the polycarbonate resin It is a resin laminate having a total thickness of 0.5 to 2.0 mm in which a hard coat layer having a thickness of 1 to 20 μm is laminated on the layer, and (A) the following formula (A-1) with respect to 100 parts by weight of the acrylic resin 0.005 to 0.5 parts by weight of a compound represented by formula (B), 0.005 to 0.5 parts by weight of a compound represented by formula (B-1) below, and (C) A resin laminate comprising 0.005 to 1.0 parts by weight of the compound represented by 1) and / or the compound represented by the following formula (C-2) in total.

（式（Ｃ−２）において、ｎは１〜１００の整数を示す。）

(In formula (C-2), n represents an integer of 1 to 100.)

2. The resin laminate according to item 1 above, containing 0.1 to 3 parts by weight of an ultraviolet absorber represented by the following formula (D-1) with respect to 100 parts by weight of the acrylic resin.

3. With respect to 100 parts by weight of the acrylic resin, the compound represented by the formula (A-1), the compound represented by the formula (B-1), the compound represented by the formula (C-1), and the above 3. The resin laminate according to item 1 or 2, wherein the total content of the compound represented by formula (C-2) is 0.01 to 0.6 parts by weight.
4). The resin laminate (70 mm × 50 mm) was allowed to stand for 72 hours in a temperature of 85 ° C. and humidity of 85% RH, and then left for 1 hour in a temperature of 23 ° C. and humidity of 50% RH. 4. The resin laminate according to any one of the preceding items 1 to 3, wherein a maximum amount of float when the amount of float at the four corners is 0.1 mm or less is measured by placing the product flat on top.
5. A display cover panel for a mobile device comprising the resin laminate according to any one of the preceding items 1 to 4.
Is provided.

  Since the resin laminate of the present invention has excellent moisture and heat resistance, impact resistance, pencil hardness, transparency, and weather resistance, it is particularly useful as a display cover panel for mobile devices such as mobile phones and smartphones.

Hereinafter, the present invention will be described in detail.
<Polycarbonate resin>
The polycarbonate resin used in the polycarbonate resin sheet of the present invention is an aromatic polycarbonate resin usually produced by reacting a dihydric phenol and a carbonate precursor by a solution method or a melting method, and is a typical example of a dihydric phenol. 2,2-bis (4-hydroxyphenyl) propane (commonly known as bisphenol A), 1,1-bis (4-hydroxyphenyl) ethane, 1,1-bis (4-hydroxyphenyl) cyclohexane, 2,2-bis (4-hydroxy-3,5-dimethylphenyl) propane, 2,2-bis (4-hydroxy-3,5-dibromophenyl) propane, 2,2-bis (4-hydroxy-3-methylphenyl) propane, Bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) sulfone, etc. It is below. A preferred dihydric phenol is a bis (4-hydroxyphenyl) alkane series, and bisphenol A is particularly preferred.

Examples of the carbonate precursor include carbonyl halide, carbonate ester, haloformate, and the like, and specifically, phosgene, diphenyl carbonate, dihaloformate of dihydric phenol, and the like.
In producing the polycarbonate resin, the above dihydric phenols can be used alone or in combination of two or more thereof, and a molecular weight regulator, a branching agent, a catalyst and the like can be used as necessary.

The molecular weight of the polycarbonate resin is preferably 1.0 × 10 ^{4 to} 10.0 × 10 ⁴ , more preferably 1.5 × 10 ^{4 to} 4.5 × 10 ⁴ in terms of viscosity average molecular weight. The viscosity average molecular weight referred to in the present invention is obtained by inserting the specific viscosity (η _sp ) obtained from a solution obtained by dissolving 0.7 g of polycarbonate resin in 100 ml of methylene chloride at 20 ° C. into the following equation.
η _sp /c=[η]+0.45×[η] ² c (where [η] is the intrinsic viscosity)
[Η] = 1.23 × 10 ⁻⁴ M ^0.83
c = 0.7

  The polycarbonate resin may contain additives as required, for example, heat stabilizers (0.001 to 0.1% by weight) such as phosphites, phosphates, and phosphonates, triazoles, acetophenones, and salicylates. UV absorbers (0.1 to 0.7% by weight) such as tetrabromobisphenol A, low molecular weight polycarbonate of tetrabromobisphenol A, flame retardants such as decabromodiphenyl ether (3 to 15% by weight), colorants, fluorescence You may mix | blend a whitening agent etc.

  The resin material mainly composed of a polycarbonate resin means that the polycarbonate resin in the resin material is 50% by weight or more, preferably 70% by weight or more, more preferably 80% by weight or more, and further preferably 90% by weight. That is the above, and particularly preferably substantially consists of a polycarbonate resin.

<Acrylic resin>
The acrylic resin, which is one resin constituting the surface layer, is mainly composed of a methacrylic acid ester or an acrylic acid ester polymer. Specifically, a copolymer of methyl methacrylate and an acrylate such as methyl acrylate or ethyl acrylate is preferable, and the copolymer composition and molecular weight may be appropriately selected depending on the co-extrusion conditions. 80-99.5% and 0.5-20% acrylates such as methyl or ethyl acrylate are preferred. Moreover, the acrylic resin containing a crosslinking component can be used in the range which can be extrusion-molded and does not impair transparency. The molecular weight is preferably 3 to 300,000 in terms of weight average molecular weight, but is not limited thereto. As the load deflection temperature of the acrylic resin is higher, the glass transition temperature is higher, the roll transfer temperature is closer to the roll transfer temperature of the polycarbonate resin, and a laminate having excellent roll transfer properties and excellent appearance can be obtained. Therefore, the load deflection temperature of the acrylic resin is preferably 90 ° C. or higher, preferably 95 ° C. or higher, more preferably 100 ° C. or higher. In order to ensure high pencil hardness, it is preferable that the acrylic resin contains substantially no rubber component.

Any method may be used for laminating the acrylic resin layer on the surface of the polycarbonate resin sheet, and it is particularly preferable to carry out by a thermocompression bonding method or a coextrusion method.
Any method can be used as the thermocompression bonding method. For example, a method of thermocompression bonding an acrylic resin film and a polycarbonate resin sheet using a laminating machine or a press machine, or a thermocompression bonding of the acrylic resin film to a polycarbonate resin sheet immediately after extrusion. The method is preferred, and the method of continuously thermocompression bonding to a polycarbonate resin sheet immediately after extrusion is industrially advantageous. The thermocompression bonding conditions in this case vary depending on the thickness of the polycarbonate resin sheet or acrylic resin film, the state of the crimping surface, etc., and cannot be specified in general, but temperatures near or above the glass transition point of the acrylic resin film, usually acrylic resin A glass transition point of the film of −10 ° C. to a glass transition point of + 150 ° C., preferably a glass transition point of −5 ° C. to a glass transition point of + 100 ° C. is applied to a linear pressure of 0.05 kg / cm or more, preferably about 1 to 10 kg / cm. Thermocompression bonding is possible.

In the coextrusion method, an acrylic resin is melt-extruded at a glass transition point to a glass transition point + 230 ° C., preferably at a glass transition point + 50 ° C. to a glass transition point + 200 ° C., with auxiliary extrusion, and a polycarbonate resin is used as a main extrusion. The glass transition point to the glass transition point + 230 ° C., preferably the glass transition point + 50 ° C. to the glass transition point + 200 ° C. can be melt extruded and laminated by extrusion by a known method such as a multi-manifold method or a feed block method.
The thickness of the acrylic resin layer is in the range of 40 to 120 μm, and preferably in the range of 50 to 90 μm. If it is too thin, sufficient pencil hardness cannot be obtained. On the other hand, if it is too thick, the impact resistance is lowered.

  In this invention, it discovered that monomer components, such as MMA, volatilize from an acrylic resin layer in 85 degreeC and 85% RH atmosphere. And in order to suppress this, (A) 0.005-0.5 weight part of compounds represented by said Formula (A-1) with respect to 100 weight part of acrylic resins, (B) said Formula (B- 0.005 to 0.5 parts by weight of the compound represented by 1) and (C) the compound represented by the formula (C-1) and / or the compound represented by the formula (C-2) It was found that 0.005 to 1.0 part by weight was contained.

  When the content of any of the compounds (A), (B), and (C) is less than 0.005 parts by weight, the effect of inhibiting the decomposition of the acrylic resin at the time of extrusion or under high temperature and high humidity is insufficient. In addition, if the content of each compound exceeds the above range, not only can further improvement of the acrylic resin decomposition inhibitory effect be expected, but these additives cause bleed-out, which causes whitening, and adhesion and impact strength. It will cause a decline.

  In the present invention, a phosphorus compound having a structure represented by the following formula (A-1) is used. This phosphorus compound has an antioxidant effect. As a commercial item, the product name PEP-36 made from ADEKA Corporation is mentioned. Content of the phosphorus compound of the structure shown by a following formula (A-1) is the range of 0.005-0.5 weight part with respect to 100 weight part of acrylic resins, Preferably it is 0.006-0.4. It is the range of a weight part, More preferably, it is the range of 0.007-0.3 weight part.

  In addition, even if it is a phosphorus compound, a sufficient effect is not acquired with the phosphorus compound which has a structure shown, for example by a following formula (A-2).

  In the present invention, a phenol compound having a structure represented by the following formula (B-1) is used. This phenolic compound has a radical suppressing effect. As a commercial item, the product name IRGANOX1010 made from BASF is mentioned. Content of the phenol type compound of the structure shown by a following formula (B-1) is the range of 0.005-0.5 weight part with respect to 100 weight part of acrylic resins, Preferably it is 0.006-0.4. It is the range of a weight part, More preferably, it is the range of 0.007-0.3 weight part.

  In addition, even if it is a phenol type compound, in the phenol type compound which has a structure shown by the following formula (B-2), for example, there exists a problem that it is easy to whiten not only without a sufficient effect.

  In the present invention, a compound having a structure represented by the following formula (C-1) and / or a compound having a structure represented by the following formula (C-2) is used. The total amount of the compound having the structure represented by the following formula (C-1) and the compound having the structure represented by the following formula (C-2) is 0.005 to 1.0 part by weight with respect to 100 parts by weight of the acrylic resin. The range is preferably 0.01 to 0.8 parts by weight, more preferably 0.02 to 0.5 parts by weight.

  The phosphorus compound having a structure represented by the following formula (C-1) has an antioxidant effect. As a commercial item, the product name Hostanox P-EPQ by Clariant Japan Co., Ltd. is mentioned. The content of the phosphorus compound having the structure represented by the following formula (C-1) is preferably in the range of 0.005 to 0.5 parts by weight, more preferably 0.006 to 100 parts by weight with respect to 100 parts by weight of the acrylic resin. It is the range of 0.4 weight part, More preferably, it is the range of 0.007-0.3 weight part.

  The hindered amine compound having a structure represented by the following formula (C-2) has a hydrolysis inhibiting effect. As a commercial item, the product name CHIMASSORB 2020 FDL made from BASF is mentioned. The content of the hindered amine compound having the structure represented by the following formula (C-2) is preferably in the range of 0.005 to 0.5 parts by weight, more preferably 0.006 to 100 parts by weight with respect to 100 parts by weight of the acrylic resin. It is the range of 0.4 weight part, More preferably, it is the range of 0.007-0.3 weight part.

（式（Ｃ−２）において、ｎは１〜１００の整数を示す。）

(In formula (C-2), n represents an integer of 1 to 100.)

  In addition, even if it is a hindered amine compound, for example, a hindered amine compound having a structure represented by the following formula (C-3) not only does not have a sufficient effect, but also causes appearance defects such as whitening that are likely to aggregate. There's a problem.

（式（Ｃ−３）において、ｎは１〜１００の整数を示す。）

(In formula (C-3), n represents an integer of 1 to 100.)

  The compound represented by the formula (A-1), the compound represented by the formula (B-1), the compound represented by the formula (C-1), and the formula (C-2) The total content of the compound is preferably in the range of 0.01 to 0.6 parts by weight, more preferably in the range of 0.02 to 0.5 parts by weight, with respect to 100 parts by weight of the acrylic resin. More preferably, it is the range of 0.03-0.4 weight part. If it is within the above range, the effect of inhibiting the decomposition of acrylic resin at the time of extrusion or under high temperature and high humidity is sufficient, and these additives are less likely to cause bleed out and cause whitening, adhesion and impact strength. Less likely to cause a decrease, which is preferable.

  Moreover, it is preferable to add 0.1-3 weight part of ultraviolet absorbers with respect to 100 weight part of acrylics, and it is more preferable to add 0.5-2 weight part. Within such a range, it is preferable that sufficient weather resistance is obtained, bleed-out hardly occurs, it is difficult to cause whitening, and there is no possibility of lowering adhesion and impact strength.

  As the ultraviolet absorber to be added, an ultraviolet absorber having a structure represented by the following formula (D-1) is preferable. As a commercial item, the product name ADEKA STAB LA-51 made from ADEKA Corporation is mentioned.

  In addition, even if it is an ultraviolet absorber, for example, in the ultraviolet absorber which has a structure shown by a following formula (D-2), there exists a problem that a ultraviolet absorber sublimates at the time of extrusion, and a roll becomes dirty.

  In addition, you may mix | blend other components, for example, organic dye, inorganic dye, a pigment, antioxidant, antistatic agent, surfactant, etc. with acrylic resin or polycarbonate resin as needed.

<Hard coat layer>
The hard coat layer is not particularly limited in material, application method, and the like as long as it has sufficient adhesion without impairing transparency. In general, methods such as applying a curable coating that cures by heat, ultraviolet rays, electron beam, etc., physical vapor deposition, chemical vapor deposition, etc. are mentioned. Is preferred.

  The ultraviolet curable coating is not particularly limited as long as it is a composition containing an ultraviolet curable resin and a photopolymerization initiator. Examples of the ultraviolet curable resin include urethane acrylate, epoxy acrylate, polyether acrylate, polyester acrylate, glycidyl compound, alicyclic epoxy compound, and oxetane compound. As photopolymerization initiators, 1-hydroxycyclohexyl phenyl ketone, benzyl dimethyl ketal, 2-hydroxy-2-methyl-1-phenylpropane-1-one, 2-hydroxy-2-methyl-1-phenylpropane-1- ON, 2-methyl-1-[(4-methylthio) phenyl] -2-morpholinopropan-1-one, benzophenone, 4-benzoyl-4′-methylphenyl sulfide, 2,4-diethylthioxanthone and the like. . Moreover, you may add a dilution solvent, an antifoamer, a leveling agent, an antistatic agent, etc. to this composition.

  Examples of coating means for forming a hard coat layer using an ultraviolet curable coating include a micro gravure coating method, a spin coating method, a cast transfer method, a spray coating method, a flow coating method, a dipping method, a roll coating method, and a bar coating. Any method such as a method may be used, and from the viewpoint of paint properties, a micro gravure coating method, a roll coating method, and a bar coating method are more preferable. Moreover, when coating on both surfaces, both surfaces may be coated by the same method, or by different methods.

  The thickness of the hard coat layer obtained is in the range of 1 to 20 μm, and preferably in the range of 2 to 10 μm. If the thickness of the hard coat layer is less than 1 μm, sufficient scratch resistance and wear resistance cannot be obtained. If the thickness of the hard coat layer is more than 20 μm, warpage increases and it is not suitable for applications such as display cover panels and touch panels for mobile devices.

<Resin laminate>
In the present invention, the total thickness of the resin laminate is in the range of 0.5 to 2.0 mm, and preferably in the range of 0.5 to 1.5 mm. When used for a display or touch panel of a mobile device, the range of 0.8 to 1.5 mm is more preferable. When the total thickness is less than 0.5 mm, the deformation of the resin plate under high temperature and high humidity cannot be prevented. Moreover, when total thickness exceeds 2.0 mm, productivity falls and it is economically disadvantageous, it is not preferable. The total thickness means the total thickness of the polycarbonate resin layer, the acrylic resin layer, and the hard coat layer.

  The resin laminate obtained in the present invention is a laminate excellent in wet heat resistance and impact resistance, pencil hardness, transparency, and weather resistance. The total light transmittance value of the resin laminate obtained in the present invention is preferably 85% or more, and more preferably 90% or more. Further, the haze value is preferably 1.0% or less, and more preferably 0.5% or less.

  Hereinafter, although an example is given and explained in detail, the present invention is not limited to this unless it exceeds the purpose.

(Method for evaluating wet heat resistance)
The resin laminates obtained in the examples were cut into a size of 70 mm in length and 50 mm in width, and left for 24 hours or 72 hours in a temperature 85 ° C. and humidity 85% RH environment, and then in a temperature 23 ° C. and humidity 50% RH environment. After being left for 1 hr, the resin laminate was laid flat so that the acrylic resin layer surface side was up, and the floating amounts at the four corners were measured. The case where the maximum floating amount was 0.1 mm or less was regarded as acceptable.

(Evaluation method of impact resistance)
The falling ball impact test showing the strength of the resin laminates obtained in the examples with respect to impact is performed based on JIS K7211. A test piece of 100 mm × 100 mm is cut out from the resin laminate, and a steel ball having a weight of 45.7 g is dropped from a height of 20 cm with the surface on which the acrylic resin of the test piece is laminated as the surface where the falling ball collides, and cracks are caused. The presence or absence of occurrence was confirmed with a microscope. Those with no cracks were accepted.

(Evaluation method of pencil hardness)
According to JIS K 5600, the resin laminate obtained in the example was measured for pencil hardness with a weight of 750 g applied to the surface on which the acrylic resin was laminated. The pencil hardness of the laminate was set to 4H or higher, which is practically acceptable.

(Transparency evaluation method)
The resin laminates obtained in the examples were evaluated for total light transmittance value (Tt) and haze value (Haze) in accordance with JIS K 7361-1 and JIS K 7136, and the total light transmittance was 85% or more. The haze value of 1.0% or less was accepted.

(Evaluation method of weather resistance)
Using one surface of the test piece as an ultraviolet irradiation surface, using SUGA XEON Co., Ltd. Super Xenon Weather Meter SX-75, UV irradiation intensity 180 W / m ² , black panel temperature 63 ° C, 18 minutes in 120 minutes under rain conditions An exposure test was conducted for 200 hours, the test piece was taken out, and the YI value of the appearance after the test was measured by a C light source reflection method using a color difference meter (Nippon Denshoku SE-2000). The difference between the YI value of the initial test piece and the YI value of the test piece after the weather resistance test was ΔYI, and 1.0 or less was accepted.

<Examples 1 to 16>
The polycarbonate resin constituting the polycarbonate resin sheet is melted by a single screw extruder having a screw diameter of 40 mm, and the acrylic resin forming the acrylic resin layer is melted by a single screw extruder having a screw diameter of 30 mm, and two layers are formed by a feed block method. The sheet obtained is extruded through a T-die having a set temperature of 280 ° C., and the resulting sheet is cooled with a mirror-finished roll, and a polycarbonate resin (trade name: Panlite L-1225, manufactured by Teijin Chemicals Ltd.) is used. A resin laminated sheet having a width of 500 mm obtained by laminating acrylic resin (manufactured by Kuraray, trade name: Parapet HR-L) on one side was obtained.
An ultraviolet curable coating (KCR-8502, manufactured by Shin-Nakamura Chemical Co., Ltd.) was applied to the obtained resin laminated sheet using a metal bar coater so as to have the film thicknesses shown in Tables 1 and 2 (Examples 1 to 13). ) And then cured using an ultraviolet irradiation device so as to obtain an integrated light amount of 1,200 (mJ / cm ² ) to obtain a resin laminate with a hard coat. The total thickness of the resin laminate, the thickness of the acrylic resin layer, the surface subjected to the hard coat treatment, the thickness of the hard coat layer, and the compounding amount of the additive in the acrylic resin layer (with respect to 100 parts by weight of the acrylic resin) are shown in Table 1. As shown in ~ 2.

<Comparative Example 1>
A polycarbonate sheet (trade name: Panlite Sheet PC-1151, manufactured by Teijin Chemicals Ltd.) shown in Table 3 (Comparative Example 1) was used. Table 3 shows the evaluation results.

<Comparative example 2>
Using a metal bar coater on a polycarbonate sheet (manufactured by Teijin Chemicals Ltd., trade name: Panlite Sheet PC-1151), an ultraviolet curable coating (Shin Nakamura) is formed to have the film thickness shown in Table 3 (Comparative Example 2). After applying KCR-8502) manufactured by Kagaku Kogyo Co., Ltd., it was cured using an ultraviolet irradiation device so as to obtain an integrated light amount of 1,200 (mJ / cm ² ) to obtain a resin laminate. Table 3 shows the evaluation results.

<Comparative Examples 3-18, Reference Example 1>
Resin laminates with a hard coat were obtained in the same manner as in Examples 1-16. The total thickness of the resin laminate, the thickness of the acrylic resin layer, the surface subjected to the hard coat treatment, the thickness of the hard coat layer, and the compounding amount of the additive in the acrylic resin layer (with respect to 100 parts by weight of the acrylic resin) are shown in Table 3. As shown in -4.

In addition, additive (A-1)-(D-2) of Tables 1-4 shows the following compound.
A-1 Phosphorus compound Product name PEP-36 (compound of formula (A-1)) manufactured by ADEKA Corporation
A-2 Phosphorus compound manufactured by BASF, product name IRGAFOS168 (compound of formula (A-2))
B-1 Phenol compound manufactured by BASF, product name IRGANOX1010 (compound of formula (B-1))
B-2 Phenol compound manufactured by BASF, product name IRGANOX3114 (compound of formula (B-2))
C-1 Phosphorus compound manufactured by Clariant Japan Co., Ltd., product name Hostanox P-EPQ (compound of formula (C-1))
C-2 hindered amine compound, manufactured by BASF, product name CHIMASSORB 2020 FDL (compound of formula (C-2))
C-3 Hindered amine compound manufactured by BASF, product name CHIMASSORB 944 FDL (formula (compound of C-3))
D-1 Ultraviolet Absorber Made by ADEKA Corporation, trade name ADK STAB LA-51 (compound of formula (D-1))
D-2 UV absorber manufactured by Chemipro Kasei Co., Ltd., product name Chemisorb 79 (compound of formula (D-2))

  The resin laminate of the present invention is useful as a display cover panel or touch panel for mobile devices.

Claims (5)

In a resin laminated sheet in which an acrylic resin having a thickness of 40 to 120 μm is laminated on one side of a polycarbonate resin sheet made of a resin material containing polycarbonate resin as a main component, on the acrylic resin layer or on the acrylic resin layer and the polycarbonate resin It is a resin laminate having a total thickness of 0.5 to 2.0 mm in which a hard coat layer having a thickness of 1 to 20 μm is laminated on the layer, and (A) the following formula (A-1) with respect to 100 parts by weight of the acrylic resin 0.005 to 0.5 parts by weight of a compound represented by formula (B), 0.005 to 0.5 parts by weight of a compound represented by formula (B-1) below, and (C) A resin laminate comprising 0.005 to 1.0 parts by weight of the compound represented by 1) and / or the compound represented by the following formula (C-2) in total.

(In formula (C-2), n represents an integer of 1 to 100.) The resin laminated body of Claim 1 which contains 0.1-3 weight part of ultraviolet absorbers represented with a following formula (D-1) with respect to 100 weight part of acrylic resins.

  With respect to 100 parts by weight of the acrylic resin, the compound represented by the formula (A-1), the compound represented by the formula (B-1), the compound represented by the formula (C-1), and the above The resin laminate according to claim 1 or 2, wherein the total content of the compound represented by the formula (C-2) is 0.01 to 0.6 parts by weight.   The resin laminate (70 mm × 50 mm) was allowed to stand for 72 hours in a temperature of 85 ° C. and humidity of 85% RH, and then left for 1 hour in a temperature of 23 ° C. and humidity of 50% RH. The resin laminate according to any one of claims 1 to 3, wherein the resin layered product according to any one of claims 1 to 3 has a maximum floating amount of 0.1 mm or less when flatly placed so that the floating amount at the four corners is measured.   The display cover panel of the mobile device which consists of a resin laminated body of any one of Claims 1-4.