Manufacturing method of b-stage coat and manufacturing method of three-dimensional molded body

Abstract

This invention relates to a method for manufacturing a Class B coating. The method includes the following steps: (1) forming a wet coating film on at least one surface of a film substrate using a coating comprising (A) an effective electrical line curing resin and (B) a photopolymerization initiator; (2) pre-drying the wet coating film formed in step (1) to form a dry coating film; and (3) subjecting the dry coating film formed in step (2) to autoclave treatment. The method may further include the following step: after step (2) and before step (3), stacking and temporarily affixing a protective film onto the surface of the dry coating film formed in step (2). The autoclave treatment in step (3) can be performed under conditions of a pressure of 0.15~1 MPa and a temperature of 23~100°C for 1~60 minutes. The method may further include the following step: performing an aging treatment after step (3). The coating may contain (C) microparticles (which may be antibacterial agents or antiviral agents).

Description

B-stage coatings, laminated films, three-dimensional molded bodies, and their manufacturing methods This invention relates to a Class B coating and a method for manufacturing a Class B coating. More specifically, this invention relates to a Class B coating, a laminated film, a three-dimensional molded body, and a method for manufacturing the same. Previously, in order to impart surface hardness and abrasion resistance to molded bodies such as housings of household appliances and information electronic devices, as well as automotive dashboards, hardened resin coatings such as acrylic resin, melamine resin, isocyanate resin, and ethyl carbamate resin were often applied to the surface of the substrate of the molded body to form a hardened coating film. As a method for forming the aforementioned hardened coating, a widely adopted approach is to first shape the substrate, then apply methods such as dip coating, spray coating, spin coating, and pneumatic doctor blade coating to the surface of the obtained substrate, and finally apply the aforementioned hardening resin coating for curing. However, this method has the following problems: particularly when the substrate has a three-dimensional shape (e.g., a curved shape, a surface with unevenness, etc.), various drawbacks arise, such as difficulty in achieving uniform thickness when applying the hardening resin coating to the surface of the substrate; the hardening resin coating flowing after coating and before curing easily leads to uneven thickness / appearance defects in the hardened coating; and insufficient productivity due to applying the coating to each substrate. Therefore, the following method has been proposed: using roller coating, gravure coating, reverse coating, and rigid die coating, etc., to apply coatings to the surface of a thermoplastic resin film to form a Class B coating with high productivity; after the resulting laminated film is given a predetermined shape by methods such as hot pressing, the Class B coating is completely hardened; the laminated film is inserted into an injection molding die, heated and softened to give it a predetermined shape, and then a desired thermoplastic resin is injected into the die, after which the Class B coating is completely hardened (for example, see Patent Documents 1 and 2). However, in these techniques, it is difficult to stably manufacture Class B coatings industrially, especially to stably maintain a balance between hardening the wet coating to a Class B state and maintaining the hardening of the wet coating to a Class B state. Furthermore, the three-dimensional formability of the coating at Class B (the difficulty in causing defects such as cracking and whitening when giving it a three-dimensional shape) is insufficient. In addition, the surface hardness and abrasion resistance after the coating is completely hardened cannot be adequately satisfied. [Prior Art Documents] [Patent Documents] [Patent Document 1] Japanese Patent Application Publication No. 2012-521476 [Patent Document 2] Japanese Patent Application Publication No. 2016-221922 The object of this invention is to provide a novel method for manufacturing a Class B coating. Another object of this invention is to provide a novel Class B coating. Yet another object of this invention is to provide a Class B coating with good three-dimensional formability (the difficulty in causing defects such as cracks, fissures, and appearance defects (e.g., whitening) when imparting a three-dimensional shape) and a method for manufacturing the same. A further object of this invention is to provide a coating with good three-dimensional formability in Class B, and good surface hardness, abrasion resistance, and chemical resistance after complete curing (in Class C), a laminated film having the coating, a molded body comprising the coating or the laminated film, and a method for manufacturing the above. Through dedicated research, the inventors discovered that the aforementioned issues can be achieved through a specific method. That is, the various forms of the present invention are as follows. [1]. A method for manufacturing a Class B coating film, comprising the following steps: (1) forming a wet coating film on at least one side surface of a thin film substrate using a coating comprising (A) an effective electrical line curing resin and (B) a photopolymerization reaction initiator; (2) pre-drying the wet coating film formed in step (1) to form a dry coating film; and (3) subjecting the dry coating film formed in step (2) to high pressure treatment. [2]. The method described in [1] above further comprises the following step: after step (2) and before step (3) above, stacking and temporarily adhering a protective film on the surface of the dry coating film formed in step (2). [3]. In the method described in [1] or [2] above, the high pressure treatment in step (3) is performed under conditions of a pressure of 0.15 to 1 MPa and a temperature of 23 to 100°C for 1 to 60 minutes. [4]. The method described in any one of items [1] to [3] above further includes the step of: performing an aging treatment after step (3) above. [5]. The method described in any one of items [1] to [4] above, wherein the coating further comprises (C) microparticles. [6]. The method described in item [5] above, wherein the microparticles of component (C) contain microparticles that function as antibacterial or antiviral agents. [7]. The method described in any one of items [1] to [6] above, wherein the coating further comprises (D) a water-repellent agent. [8]. The method described in any one of items [1] to [7] above, wherein the coating does not contain a thermal polymerization initiator. [9]. The method described in any one of items [1] to [8] above, wherein the (A) effective electrical energy line curing resin contains (A1) ethyl carbamate (meth) acrylate.

[10] . In any one of the above items [1] to [9], the (A) effective power line curing resin comprises a copolymer of (A2) (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol.

[11] . In any one of the above items [1] to

[10] , the method further comprises the step of transferring the high-pressure treated coating on the thin film substrate formed in step (3) to a substrate other than the thin film substrate.

[12] . A method for manufacturing a three-dimensional molded body comprises the following steps: (P) obtaining a B-grade coating suitable for the thin film substrate or a B-grade coating transferred to a substrate other than the thin film substrate by any one of the above items [1] to

[11] ; (Q) imparting a three-dimensional shape to the B-grade coating suitable for the thin film substrate or the B-grade coating transferred to a substrate other than the thin film substrate obtained in step (P); and (R) completely curing the B-grade coating that was imparted a three-dimensional shape in step (Q). [Effects of the Invention] The manufacturing method of this invention enables the stable industrial production of Grade B coatings. A preferred manufacturing method of this invention enables the stable industrial production of Grade B coatings with excellent three-dimensional formability. The Grade B coating of this invention exhibits excellent three-dimensional formability. The preferred Grade B coating of this invention exhibits excellent three-dimensional formability in Grade B and, after complete curing (in Grade C), excellent surface hardness, abrasion resistance, and chemical resistance. Therefore, molded bodies formed using the Grade B coating of this invention and the laminated film of this invention having the Grade B coating exhibit excellent surface hardness, abrasion resistance, and chemical resistance, and also have a good surface appearance (free from cracks, fissures, and appearance defects such as whitening). Therefore, the Grade B coating of this invention and the laminated film of this invention having the Grade B coating are preferably used to impart surface hardness, abrasion resistance, and chemical resistance to the surfaces of molded bodies with three-dimensional shapes, such as housings of household appliances and information electronic devices, and automotive dashboards. In this specification, the term "resin" is used to refer to resin mixtures comprising two or more resins, as well as resin compositions comprising components other than resins. In this specification, the term "film" may be used interchangeably or interchangeably with "sheet." In this specification, the terms "film" and "sheet" are used for those that can be industrially wound into rolls. The term "sheet" is used for those that cannot be industrially wound into rolls. Furthermore, in this specification, the sequential lamination of one layer with other layers includes both direct lamination of the layers and lamination with one or more anchor coats or other layers present between the layers. In this specification, the term "above" in a numerical range means a certain value or exceeding a certain value. For example, "above 20%" means 20% or more. The term "below" in a numerical range means a certain value or less than a certain value. For example, "below 20%" means 20% or less than 20%. Furthermore, the "~" symbol in a numerical range means a certain value, exceeding a certain value but less than another value, or another value. Here, "another value" refers to a value greater than a certain value. For example, "10-90%" means 10%, exceeding 10% but less than 90%, or 90%. Furthermore, the upper and lower limits of the numerical range can be arbitrarily combined, allowing for the reading of any combination of implementation methods. For example, from the descriptions of a certain characteristic's numerical range as "usually 10% or more, preferably 20% or more. On the other hand, usually 40% or less, preferably 30% or less" and "usually 10-40%, preferably 20-30%", it can be seen that the numerical range of a certain characteristic can be read as 10-40%, 20-30%, 10-30%, or 20-40% in one embodiment. Outside of the embodiments, or unless otherwise specified, all numerical values ​​used in this specification and the scope of the claims shall be understood to be modified by the term “about”. There is no limitation on the application of the equivalence doctrine in the scope of the claims; each numerical value shall be interpreted relative to significant figures and by applying ordinary rounding methods. In this specification, the term "Class B" is used for thermosetting resins in the sense specified in JIS K6800-1985, meaning "a moderately cured state of thermosetting resin. In this state, the resin softens upon heating and expands upon contact with a solvent, but does not completely melt or dissolve." For effective power line-cured resins, it is used as "an effective power line-cured resin in a moderately cured state. In this state, the resin softens upon heating and expands upon contact with a solvent, but does not completely melt or dissolve." In this specification, the term "Class C" is used to mean, as specified in JIS K6800-1985, for both thermosetting resins and resins that are effective power line curing resins, "the final state of the curing reaction of the resin. In this state, the resin neither melts nor dissolves. The cured resin in a fully cured coating is in this state." 1. Method for manufacturing Class B coating The manufacturing method of the present invention includes the following steps: (1) forming a wet coating on at least one side surface of a thin film substrate using a coating (hereinafter, sometimes simply referred to as "Class B coating forming coating") containing (A) an effective power line curing resin and (B) a photopolymerization reaction initiator; (2) pre-drying the wet coating formed in step (1) to form a dry coating; and (3) subjecting the dry coating formed in step (2) to high pressure treatment. In step (1) above, a wet coating film is formed on at least one surface of the thin film substrate using the aforementioned Class B coating film forming paint. In step (1) above, a wet coating film is typically formed on one surface of the thin film substrate using the aforementioned Class B coating film forming paint. The thin film substrate used in step (1) above is not particularly limited, and any thin film can be used as the thin film substrate. As the thin film substrate used in step (1) above, the thin film substrate described in "3. Class B coating laminate film" and the like below is preferably used. As the Class B coating forming coating used in step (1) above, the coating described in "2. Class B coating film" and the like below is preferably used. In step (1) above, the method of forming a wet coating film by applying the above-mentioned Class B coating film forming paint to the surface of the above-mentioned thin film substrate is not particularly limited, and known roll-to-roll application methods can be used. As the above-mentioned roll-to-roll application method, from the viewpoint of applying paint with higher productivity using a roll-to-roll method, it is preferable to use, for example, rod coating, roll coating, gravure coating, reverse coating, kiss-type reverse coating, and rigid die coating. In step (2) above, the wet coating film formed in step (1) is pre-dried to form a dry coating film. By pre-drying the wet coating film and using it as the dry coating film, manufacturing problems such as coating blistering can be suppressed in step (3) above. The pre-drying can be carried out, for example, by passing the roll of foil through a drying oven at a linear speed of about 0.5 to 10 minutes, preferably 1 to 5 minutes, from the inlet to the outlet, at a temperature typically about 23 to 150°C, preferably 50 to 130°C, and more preferably 70 to 120°C. Preferably, after step (2) and before step (3), a protective film is stacked and temporarily adhered on the surface of the dried coating film formed in step (2). This can suppress manufacturing problems such as scratches on the coating film (dried coating film or B-grade coating film) before it is fully hardened (becomes grade C). Furthermore, by irradiating the coating film with effective electrical lines after three-dimensional molding, manufacturing problems such as hardening defects caused by oxidative damage can be suppressed during the step of changing from grade B to grade C. Figure 1 illustrates an example of a method for temporarily attaching a protective film to the surface of the dried coating. Figure 1 is a schematic diagram showing an example of an apparatus for temporarily attaching a protective film to the surface of the dried coating. The laminate 1 obtained in step (2) (a laminate having the dried coating on one side of the film substrate) is placed on a rotating drum 3, with the side of the laminate 1 opposite to the dried coating becoming the side of the drum 3. A protective film 2 is placed on the surface of the dried coating on the laminate 1 and pressed by a pressure roller 4. The laminate 5, with the protective film 2 temporarily attached to the surface of the dried coating, is detached from the drum 3 by a guide roller 6 and sent to step (3). The drum 3 can be preheated to a desired temperature. The temperature of the drum 3 can typically be room temperature (approximately 23°C) to approximately 100°C, preferably room temperature (approximately 23°C) to approximately 50°C. As the aforementioned protective film, it is preferable to have effective power line transmittance (hereinafter, sometimes referred to as "effective power line transmittance protective film"). When the Class B coating of the present invention is fully hardened (becoming Class C), effective power lines can be irradiated even without peeling off the protective film, thus suppressing manufacturing problems. Furthermore, the thickness of the protective film is not particularly limited, for example, it can be in the range of about 10 μm to about 600 μm, preferably in the range of 20 μm to 250 μm. Here, "having effective electrical line transmittance" means that the effective electrical line transmittance of the thin film is typically 70% or more, preferably 80% or more. In this specification, effective electrical line transmittance is the ratio of the integrated area of ​​the transmission spectrum of effective electrical lines in the wavelength range of 200–600 nm to the integrated area of ​​the transmission spectrum assuming that the effective electrical line transmittance is 100% across the entire wavelength range of 200–600 nm. The aforementioned transmission spectrum is measured using a spectrophotometer with light incident on the thin film at an incident angle of 0°. For example, a Shimadzu Corporation spectrophotometer, the "SolidSpec-3700" (trade name), can be used. Examples of effective protective films for the transmission of electrical lines include, for example, polyethylene terephthalate resin films, polypropylene resin films, aromatic polycarbonate resin films, and fluoropolymer resin films. The surfaces where the protective film and the dried coating adhere can be either easily peelable, unpeelable, or easily bondable. The easily peelable treatment can be, for example, any known method such as forming a release layer using silicone resin. The easily bondable treatment can be, for example, any known method such as corona discharge treatment, plasma treatment, or anchoring coating formation. As the aforementioned protective film, by using a material that is easily peelable from the bonding surface of the aforementioned dry coating, typically, even when using a material with an embossed pattern on the bonding surface, and attempting to form an embossed pattern on the surface of the aforementioned dry coating by transferring its shape to the aforementioned dry coating, manufacturing problems when peeling off and removing the aforementioned protective film can be suppressed. As the aforementioned protective film, by using one that does not undergo easy-peel treatment on the bonding surface with the aforementioned dried coating film, in particular, even when the aforementioned Class B coating forming paint exhibits non-adhesion only during the drying process, the adhesion between the dried coating film and the aforementioned protective film can be maintained at a minimum required level during the winding process. Here, "non-adhesion" means the difficulty in preventing scratches and appearance defects caused by the coating film contacting the transport rollers, etc., during the winding process. As the aforementioned protective film, it is more practical to use one that has undergone easy adhesion treatment to the surface of the film to which the dried coating is applied, as an embodiment where the film substrate used in step (1) has undergone easy peeling treatment to the surface on which the Class B coating is formed. In this case, the Class B coating is typically transferred from the film substrate used in step (1) to the aforementioned protective film. Furthermore, in this case, "temporary adhesion" can naturally be understood technically as "adhesion, bonding". The bonding surface between the aforementioned protective film and the aforementioned dried coating film can be highly smooth, satin-textured, or have an embossed pattern. By using a protective film with a highly smooth bonding surface, the fully cured (Grade C) coating formed using the Grade B coating film of the present invention becomes high-gloss. By using a protective film with a satin-textured bonding surface, the fully cured (Grade C) coating formed using the Grade B coating film of the present invention becomes matte (low-gloss). By using a protective film with an embossed pattern bonding surface, the fully cured (Grade C) coating formed using the Grade B coating film of the present invention becomes embossed. In step (3), the dried coating film formed in step (2) is subjected to high-pressure treatment. By using step (3), when manufacturing a three-dimensional molded body using a laminate having the Class B coating film of the present invention, for example, in the steps of imparting a three-dimensional shape to the Class B coating film of the present invention and in the steps of completely hardening the Class B coating film of the present invention (becoming Class C), manufacturing problems such as coating blistering can be suppressed. Furthermore, in embodiments using the protective film, by using step (3), the shape of the surface of the protective film that adheres to the dried coating film can be transferred to the surface of the dried coating film. Furthermore, in embodiments using the protective film, by using step (3), even if air is trapped between the protective film and the dried coating film, the air can be expelled, preventing appearance defects. Step (3) above can be performed according to the following steps. In a typical embodiment, firstly, the dried coating film formed in step (2) above (a laminate having the dried coating film on at least one side surface of the film substrate; a laminate having the dried coating film on at least one side surface of the film substrate, and then having the protective film stacked and temporarily adhered on its surface; or a winding of such laminates; the same applies below) formed in this paragraph is placed inside the high-pressure processing device, and the lid of the high-pressure processing device is closed. Next, the high-pressure processing device is heated and pressurized to a specified temperature and pressure, and after reaching the specified temperature and pressure, the temperature and pressure are maintained for a specified time (hereinafter sometimes referred to as "holding time"). Next, the pressure is reduced to atmospheric pressure, preferably the temperature is also reduced to near room temperature, and then the lid of the high-pressure processing device is opened, allowing the dried coating film formed in step (2) above to be removed. The high-pressure treatment apparatus described above is not particularly limited, and any known high-pressure treatment apparatus can be used. Considering the characteristics of the coating used to form the Class B coating of the present invention and the aforementioned film substrate, the temperature, pressure, and holding time of the high-pressure treatment can be appropriately selected. In embodiments using the aforementioned protective film, considering the characteristics of the coating used to form the Class B coating of the present invention, the aforementioned film substrate, and the aforementioned protective film, the temperature, pressure, and holding time of the high-pressure treatment can be appropriately selected. The pressure of the high-pressure treatment can typically be a pressure higher than atmospheric pressure (0.1 MPa), preferably 0.15 to 1 MPa, more preferably 0.2 to 0.7 MPa, and even more preferably 0.3 to 0.6 MPa. The temperature of the high-pressure treatment can typically be room temperature (approximately 23°C) to 100°C, preferably 30 to 80°C, and more preferably 40 to 60°C. The holding time of the high-pressure treatment can typically be 1 to 60 minutes, preferably 3 to 30 minutes, and more preferably 5 to 20 minutes. It is preferable to perform the aging treatment after step (3) above. This can stabilize the properties of the Class B coating of the present invention. Furthermore, when manufacturing three-dimensional molded articles using the laminated film having the Class B coating of the present invention, for example, in the steps of imparting a three-dimensional shape to the Class B coating of the present invention and in the steps of completely hardening the Class B coating of the present invention (becoming Class C), the risk of manufacturing problems such as coating blistering can be further suppressed. The conditions for the above aging treatment are not particularly limited. The temperature of the above aging treatment can generally be about 23 to 150°C, preferably 50 to 120°C, and more preferably 70 to 100°C. The time of the above aging treatment can generally be about 10 minutes to 10 hours, preferably 30 minutes to 4 hours, and more preferably 1 to 3 hours. Without being bound by theory, it can be observed that the coating gradually hardens due to heat and becomes grade B state by means of the heat during pre-drying in step (2), the heat during stacking and temporary adhesion of the protective film in the embodiment of using the protective film, the heat and pressure during high-pressure treatment in step (3), and the heat during aging treatment (in the case of implementation). 2. Class B Coating The Class B coating of the present invention is formed using the aforementioned Class B coating forming paint (a paint containing the aforementioned component (A) effective energy line curing resin and the aforementioned component (B) photopolymerization reaction initiator) by any method. Preferably, the Class B coating of the present invention is formed using the aforementioned Class B coating forming paint (a paint containing the aforementioned component (A) effective energy line curing resin and the aforementioned component (B) photopolymerization reaction initiator) by the manufacturing method of the present invention. Hereinafter, the aforementioned Class B coating forming paint (a paint containing the aforementioned component (A) effective energy line curing resin and the aforementioned component (B) photopolymerization reaction initiator) will be described. (A) Effective Power Line Curing Resin The above-mentioned component (A) Effective Power Line Curing Resin plays the role of forming a coating film by polymerizing and curing effective power lines such as ultraviolet light and electron beams. Examples of effective power line curing resins as component (A) include, for example, ethyl carbamate (meth)acrylate (or polyurethane (meth)acrylate), polyester (meth)acrylate, polyacrylate (meth)acrylate, epoxy (meth)acrylate, polyalkylene glycol poly(meth)acrylate, and polyether (meth)acrylate, which are prepolymers or oligomers containing (meth)acrylic groups. Examples of effective electrical wire curing resins as component (A) include, for example, methacrylates, ethyl methacrylates, n-butyl methacrylates, hexyl methacrylates, 2-ethylhexyl methacrylates, lauryl methacrylates, isoborneol methacrylates, dicyclopentenyl methacrylates, dicyclopentenoxyethyl methacrylates, phenyl methacrylates, benzene solvent methacrylates, 2-methoxyethyl methacrylates, hydroxyethyl methacrylates, hydroxypropyl methacrylates, 2-phthaloxyoxyethyl methacrylates, dimethylaminoethyl methacrylates, trifluoroethyl methacrylates, and trimethylsiloxyethyl methacrylate, etc., monofunctional reactive monomers containing (meth)acrylic acid groups; N-vinylpyrrolidone, styrene, etc., monofunctional reactive monomers. Diethylene glycol di(meth)acrylate, neopentyl glycol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, polyethylene glycol di(meth)acrylate, 2,2'-bis(4-(meth)propenyloxypolyoxyphenyl)propane, and 2,2'-bis(4-(meth)propenyloxypolyoxyphenyl)propane and other bifunctional reactive monomers containing (meth)propenyl groups; trimethylolpropane tri(meth)acrylate, and trimethylolpropane tri(meth)acrylate. The following are examples of trifunctional reactive monomers containing (meth)acrylic acid, such as methyl ethane tri(meth)acrylate; tetrafunctional reactive monomers containing (meth)acrylic acid, such as pentaerythritol tetra(meth)acrylate; hexafunctional reactive monomers containing (meth)acrylic acid, such as dipentaerythritol hexaacrylate; octafunctional reactive monomers containing (meth)acrylic acid, such as tripentaerythritol octaacrylate; and prepolymers or oligomers containing one or more of these monomers. Examples of effective electrical wire curing resins as component (A) include, for example, compounds having two thiol groups in one molecule, such as 1,2-ethylenedithiol, ethylene glycol di(3-mercaptopropionate), diethylene glycol di(3-mercaptopropionate), 1,4-bis(3-mercaptobutoxy)butane, and tetraethylene glycol di(3-mercaptopropionate); 1,3,5-tris(3-mercaptobutoxyethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)- Compounds having three thiol groups in one molecule, such as triketones, trimethylolpropanetris (3-mercaptobutyrate), trimethylolethanetris (3-mercaptobutyrate), and tris[(3-mercaptopropoxy)ethyl]isocyanurate; compounds having four thiol groups in one molecule, such as pentaerythritol tetra(3-mercaptopropionate) and pentaerythritol tetra(3-mercaptobutyrate); and compounds having six thiol groups in one molecule, such as dipentaerythritol hexa(3-mercaptopropionate). As the above-mentioned component (A) effective power line curing resin, one or more of these components, or a copolymer formed from two or more of these components, may be used. Furthermore, in this specification, (meth)acrylate means acrylate or methacrylate. As the effective electrical wire curing resin of component (A) mentioned above, it is preferable to use one containing ethyl carbamate (meth)acrylate (A1). This allows for a balanced improvement in both the three-dimensional formability of the coating in Grade B and the surface hardness, abrasion resistance, and chemical resistance after complete curing (in Grade C). As the effective power line curing resin of the aforementioned component (A), when using ethyl carbamate (meth)acrylate containing the aforementioned component (A1), from the viewpoint of reliably obtaining the effect of the aforementioned component (A1), the blending ratio of the aforementioned component (A1), with the total of the aforementioned components (A) being 100% by mass, can typically be 10% by mass or more, preferably 25% by mass or more, and more preferably 40% by mass or more. On the other hand, from the viewpoint of surface hardness, the blending ratio of the aforementioned component (A1) can typically be 99% by mass or less, preferably 95% by mass or less, more preferably 93% by mass or less, even more preferably 85% by mass or less, and most preferably 65% ​​by mass or less. When particularly emphasizing the environmental resistance determined by the environmental tests of tests (iv) and (v) according to the following examples, the blending ratio of the aforementioned component (A1), with the total of the aforementioned components (A) being 100% by mass, can preferably be 65 to 100% by mass, and more preferably 75 to 100% by mass. As the effective power line curing resin of component (A) mentioned above, it is preferable to use a copolymer of (A2) comprising (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol. This improves the surface hardness, abrasion resistance, and chemical resistance after complete curing (in Grade C). Furthermore, in embodiments where the Grade B coating of the present invention is formed only on one side of the aforementioned film substrate, curling and warping of the laminate can be suppressed. As an effective power line curing resin for component (A) mentioned above, when using component (A2) which comprises a copolymer of (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol, from the viewpoint of reliably obtaining the effect of component (A2), the blending ratio of component (A2), with the total of components (A) being 100% by mass, can typically be 1% by mass or more, preferably 5% by mass or more, and more preferably 7% by mass or more. On the other hand, from the viewpoint of crack resistance after complete curing (in Grade C), the blending ratio of component (A2) can typically be 90% by mass or less, preferably 75% by mass or less, and more preferably 60% by mass or less. As the effective electrical wire curing resin of component (A) above, it is more preferably a copolymer of component (A1) ethyl carbamate (meth)acrylate and component (A2) comprising (a1) a polyfunctional (meth)acrylate and (a2) a polyfunctional thiol. This can more evenly improve both the three-dimensional formability of the coating in Grade B and the surface hardness, abrasion resistance and chemical resistance after complete curing (in Grade C). As the above-mentioned component (A) effective power line curing resin, when using the above-mentioned component (A1) ethyl carbamate (meth)acrylate and the above-mentioned component (A2) which is a copolymer of (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol, from the viewpoint of balancing the three-dimensional formability in the grade B coating and the surface hardness, abrasion resistance and chemical resistance after complete curing (in grade C), the mixing ratio of the above-mentioned component (A1) to the above-mentioned component (A2) (mass of the above-mentioned component (A1) / mass of the above-mentioned component (A2)) can generally be 99 / 1 to 10 / 90, preferably 95 / 5 to 25 / 75, and more preferably 93 / 7 to 40 / 60. When particular emphasis is placed on the environmental resistance determined by the environmental tests (iv) and (v) of the following embodiments, the blending ratio can preferably be 99 / 1 to 65 / 35, more preferably 95 / 5 to 75 / 25, and even more preferably 93 / 7 to 75 / 25. As the effective power line curing resin of the above-mentioned component (A), when using the above-mentioned component (A1) ethyl carbamate (meth)acrylate and the above-mentioned component (A2) which includes a copolymer of (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol, from the viewpoint of balancing the three-dimensional formability in the grade B coating and the surface hardness, abrasion resistance and chemical resistance after complete curing (in grade C), the sum of the amount of the above-mentioned component (A1) and the amount of the above-mentioned component (A2) with the total amount of the above-mentioned component (A) being 100% by mass, can typically be 80% by mass or more, preferably 90% by mass or more, more preferably 95% by mass or more, and even more preferably 98 to 100% by mass. (A1) Ethyl carbamate (meth)acrylate The above-mentioned component (A1) ethyl carbamate (meth)acrylate is a compound having an ethyl carbamate structure (-NH-CO-O-), or a derivative thereof having one or more (meth)acrylic groups. The above-mentioned component (A1) ethyl carbamate (meth)acrylate is not particularly limited, and typically can be a compound having two or more isocyanate groups (-N=C=O) in one molecule, a polyol compound, or a manufacturer using (meth)acrylate containing hydroxyl groups, that is, it can contain building units derived from such compounds. Examples of compounds having two or more isocyanate groups in one molecule include, for example, diphenylmethane diisocyanate, hexamethylene diisocyanate, isoflavone diisocyanate, toluene diisocyanate, and methylene bis(4-cyclohexyl isocyanate), which have two isocyanate groups in one molecule. Other examples of compounds having two or more isocyanate groups in one molecule include polyisocyanates such as the trimethylolpropane adduct of toluene diisocyanate, the trimethylolpropane adduct of hexamethylene diisocyanate, the trimethylolpropane adduct of isoflavone diisocyanate, the isocyanurate ester of toluene diisocyanate, the isocyanurate ester of hexamethylene diisocyanate, the isocyanurate ester of isoflavone diisocyanate, and the biuret ester of hexamethylene diisocyanate. As for the above-mentioned compounds having two or more isocyanate groups in one molecule, one or a mixture of two or more of them may be used. Examples of the aforementioned polyol compounds include polyether polyols, polyester polyols, and polycarbonate polyols. Examples of the aforementioned polyether polyols include, for example, polyalkylene glycols such as polyethylene glycol, polypropylene glycol, and polybutane glycol; polyepoxides such as polyethylene oxide and polypropylene oxide; copolymers of ethylene oxide and propylene oxide; copolymers of ethylene oxide and tetrahydrofuran; copolymers of dihydroxyphenol compounds and polyoxyethylene glycols; and copolymers of dihydroxyphenols with one or more epoxides having 2 to 4 carbon atoms (e.g., ethylene oxide, propylene oxide, 1,2-epoxybutane, and 1,4-epoxybutane). Examples of the aforementioned polyester polyols include, for example, poly(vinyl adipate), poly(butene adipate), poly(neopentyl adipate), poly(hexamethylene adipate), poly(butene nonadiate), poly(butene sebacic acid), and polycaprolactone. Examples of polycarbonate polyols mentioned above include, for example, poly(butanediol carbonate), poly(hexanediol carbonate), and poly(nonanediol carbonate). As the aforementioned polyol compounds, one or a mixture of two or more of them may be used. Examples of hydroxyl-containing (meth)acrylates include, for example, hydroxyalkyl (meth)acrylates such as 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 6-hydroxyhexyl (meth)acrylate, and 2-hydroxy-3-(meth)acryloyloxypropyl (meth)acrylate; ethylene glycol (meth)acrylates such as dipropylene glycol (meth)acrylate, polyethylene glycol mono(meth)acrylate, and polypropylene glycol mono(meth)acrylate; glycerol (meth)acrylates such as glycerol di(meth)acrylate; and modified glycerol (meth)acrylates such as fatty acid modified glycidyl (meth)acrylate. Aqueous glycerol-based (meth)acrylates; (meth)acrylates containing phosphorus atoms such as 2-hydroxyethylpropenyl phosphate; (meth)acrylate adducts of esters or ester derivatives such as 2-(meth)propenyl oxyethyl-2-hydroxypropyl phthalate; pentaerythritol tri(meth)acrylate, pentaerythritol penta(meth)acrylate, ethylene oxide-modified pentaerythritol tri(meth)acrylate, and ethylene oxide-modified pentaerythritol penta(meth)acrylate, etc., pentaerythritol-based (meth)acrylates; and caprolactone-modified 2-hydroxyethyl (meth)acrylate, caprolactone-modified pentaerythritol tri(meth)acrylate, and caprolactone-modified pentaerythritol penta(meth)acrylate, etc., caprolactone-modified (meth)acrylates. As the above-mentioned hydroxyl-containing (meth)acrylate, one or a mixture of two or more of them can be used. From the viewpoint of three-dimensional formability, and from the viewpoint of maintaining the adhesion between the dried coating and the protective film at a minimum level during the winding process in the embodiments described above, the number-average molecular weight (Mn) of polystyrene obtained by gel permeation chromatography (hereinafter, sometimes simply referred to as "GPC curve") of the component (A1) ethyl carbamate (meth)acrylate can typically be 500 or more, preferably 1000 or more. On the other hand, from the viewpoint of coatability, the number-average molecular weight (Mn) can typically be 30,000 or less, preferably 20,000 or less. From the viewpoint of three-dimensional formability, and from the viewpoint of maintaining the adhesion between the dried coating and the protective film at a minimum required level during the winding process in the embodiment of using the above-described protective film, the mass-average molecular weight (Mw) of polystyrene obtained from the GPC curve determined by the GPC measurement of the above-described component (A1) ethyl carbamate (meth)acrylate can typically be 1000 or more, preferably 2000 or more. On the other hand, from the viewpoint of coatability, the mass-average molecular weight (Mw) can typically be 100,000 or less, preferably 50,000 or less. From the viewpoint of winding controllability, and considering the surface hardness, abrasion resistance, and chemical resistance after complete curing (in Grade C), the number of (meth)acrylic groups in the aforementioned component (A1) ethyl carbamate (meth)acrylate, calculated from the polystyrene number average molecular weight (Mn) per 1000 units, is typically 2 or more, preferably 3 or more. On the other hand, from the viewpoint of three-dimensional molding properties, the number of (meth)acrylic groups is typically 20 or less, preferably 12 or less, and more preferably 10 or less. The winding controllability mentioned above also refers to the difficulty in preventing scratches or appearance defects caused by contact between the coating and transport rollers during the winding process. From the viewpoint of three-dimensional formability, and from the viewpoint of maintaining the adhesion between the dried coating and the protective film at a minimum required level during the winding process in the embodiments described above, the Z-average molecular weight (Mz) of polystyrene obtained from the GPC curve determined by the GPC of the component (A1) ethyl carbamate (meth)acrylate can typically be 1500 or more, preferably 2500 or more. On the other hand, from the viewpoint of coatability, the Z-average molecular weight (Mz) can typically be 150,000 or less, preferably 100,000 or less. For GPC determination, the system used was the Tosoh HLC-8320 (trade name) high-performance liquid chromatography system (including a degasser, liquid feed pump, autosampler, column oven, and RI (differential refractive index) detector) from Tosoh Corporation. For the GPC columns, two Shodex KF-806L (trade name), one KF-802 (trade name), and one KF-801 (trade name) columns from Shodex Corporation were used, for a total of four columns. These columns were connected sequentially from the upstream side: KF-806L, KF-806L, KF-802, and KF-801. A Wako Pure Chemical Industries Co., Ltd. high-performance liquid chromatography system using tetrahydrofuran (without stabilizer) was used as the mobile phase. The assay was performed at a flow rate of 1.0 mL / min, a column temperature of 40°C, a sample concentration of 1 mg / mL, and a sample injection volume of 100 μL. The amount of precipitated material in each holding capacity can be determined by the RI detector without regard to the molecular weight dependence of the refractive index of the sample. Furthermore, a calibration curve for converting the molecular weight from holding capacity to polystyrene can be prepared using commercially available standard polystyrene. In this case, care should be taken to select an appropriate standard polystyrene to interpolate the measured value to the calibration curve. The analytical program can be "TOSOH HLC-8320GPC EcoSEC" (trade name) from Tosoh Corporation. For the theory and determination of actual GPC, please refer to reference books such as "High Performance Liquid Chromatography of Polymers by Particle Size Sieving Chromatography" by Kyoritsu Publishing Co., Ltd., author: Mori Sadao, first edition, first printing, December 10, 1991, and "Synthetic Polymer Chromatography" by OHM Corporation, editors: Otani Hajime and Takarasaki Tatsuya, first edition, first printing, July 25, 2013, etc. Figure 2 shows the differential molecular weight distribution curves of the following component (A1-1) used in the examples. Two sharp peaks can be identified in the region of relatively low molecular weight, with the equivalent molecular weights of polystyrene at the peaks being 280 and 610 respectively, from the low molecular weight side. The peak of the main component can be identified on the side with a higher molecular weight compared to these two peaks, with the equivalent molecular weight of polystyrene at the peak being 2400. Furthermore, the total average molecular weight (Mn) is 1000, the mass average molecular weight (Mw) is 2900, and the Z-average molecular weight (Mz) is 4700. Also, the number of (meth)acrylic groups per molecule is 2, therefore, the number of (meth)acrylic groups per 1000 polystyrene molecules with a converted number average molecular weight (Mn) obtained from the GPC curve is 2. (A2) A copolymer of (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol. The above component (A2) is a copolymer of (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol. Since both the above component (a1) and the above component (a2) are polyfunctional monomers, the above component (A2) is usually a copolymer with a highly branched structure, that is, a so-called dendritic structure. The aforementioned component (a1) is a polyfunctional (meth)acrylate having two or more (meth)acrylic groups per molecule. From the viewpoint of creating a copolymer of the aforementioned component (A2) with a so-called dendritic structure, the number of (meth)acrylic groups per molecule of the aforementioned component (a1) is preferably three or more, more preferably four or more, and even more preferably five or more. On the other hand, from the viewpoint of improving crack resistance after the coating has fully hardened (in Grade C), the number is typically 20 or less, preferably 12 or less. Examples of polyfunctional (meth)acrylates as component (a1) include, for example, diethylene glycol dimethacrylate, neopentyl glycol dimethacrylate, 1,6-hexanediol dimethacrylate, polyethylene glycol dimethacrylate, 2,2'-bis(4-(meth)propenyloxypolyoxyphenyl)propane, and 2,2'-bis(4-(meth)propenyloxypolyoxyphenyl)propane, which are bifunctional reactive monomers containing a (meth)propenyl group; trimethylolpropane trimethacrylate, trimethylolethane trimethacrylate, and epoxy... Trifunctional reactive monomers containing (meth)acrylamide, such as trimethylolpropane tri(meth)acrylate; tetrafunctional reactive monomers containing (meth)acrylamide, such as dimethylolpropane tetra(meth)acrylate and pentaerythritol tetramethacrylate; hexafunctional reactive monomers containing (meth)acrylamide, such as dipentaerythritol hexaacrylate; octafunctional reactive monomers containing (meth)acrylamide, such as tripentaerythritol octaacrylate; and polymers (oligomers or prepolymers) containing one or more of these monomers and having two or more (meth)acrylamide groups in one molecule. Furthermore, examples of the aforementioned component (a1) include prepolymers or oligomers such as polyurethane (meth)acrylate, polyester (meth)acrylate, polyacrylate (meth)acrylate, polyepoxy (meth)acrylate, polyalkylene glycol poly(meth)acrylate, and polyether (meth)acrylate, which have two or more (meth)acrylic groups in one molecule. One or a mixture of two or more of these components can be used as the aforementioned component (a1). The aforementioned component (a2) is a polyfunctional thiol compound having two or more thiol groups per molecule. From the viewpoint of creating a copolymer of the aforementioned component (A2) with a so-called dendritic structure, the number of thiol groups per molecule of the aforementioned component (a2) is preferably three or more, more preferably four or more. On the other hand, from the viewpoint of improving crack resistance after complete curing of the coating (in Grade C), the number is typically 20 or less, preferably 12 or less. From the viewpoint of balancing reactivity and controllability, the thiol groups in the aforementioned component (a2) are preferably secondary thiol groups. The aforementioned component (a2) polyfunctional thiols can be polymerizable functional groups other than thiols, such as (meth)acrylic acid, vinyl, epoxy, and isocyanate groups, in one molecule. In this specification, compounds having two or more thiols and two or more (meth)acrylic acid groups in one molecule are classified as component (a2) above. Examples of polyfunctional thiols as component (a2) include, for example, 1,2-ethylenedithiol, ethylene glycol di(3-mercaptopropionate), diethylene glycol di(3-mercaptopropionate), 1,4-bis(3-mercaptobutoxy)butane, and tetraethylene glycol di(3-mercaptopropionate), which are compounds having two thiol groups in one molecule; 1,3,5-tris(3-mercaptobutoxyethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione, trimethylolpropane tri(3-mercaptobutyrate), and trimethylolpropane. Compounds having three thiol groups in one molecule, such as tris(3-mercaptobutyrate) and tris[(3-mercaptopropoxy)ethyl]isocyanurate; compounds having four thiol groups in one molecule, such as pentaerythritol tetra(3-mercaptopropionate) and pentaerythritol tetra(3-mercaptobutyrate); compounds having six thiol groups in one molecule, such as dipentaerythritol hexa(3-mercaptopropionate); and polymers (oligomers or prepolymers) having two or more thiol groups in one molecule, with one or more of these as constituent monomers. As the above-mentioned component (a2), one or a mixture of two or more of these can be used. Without departing from the purpose of this invention, the copolymer of component (A2), other than the polyfunctional (meth)acrylate of component (a1) and the polyfunctional thiol of component (a2), may contain building units derived from monomers that can copolymerize with these components. The copolymerizable monomers are typically compounds having carbon-carbon double bonds, and typically compounds having ethylene double bonds. From the viewpoint of having a so-called dendritic structure in the copolymer of the aforementioned component (A2) and from the viewpoint of abrasion resistance, the content of the building units derived from the polyfunctional (meth)acrylate of the aforementioned component (a1) in the copolymer of the aforementioned component (A2) (hereinafter, sometimes simply referred to as "(a1) content"), with the total number of building units derived from polymerizable monomers being 100 mol%, can typically be 50 mol% or more, preferably 60 mol% or more, more preferably 70 mol% or more, and even more preferably 80 mol% or more. On the other hand, from the viewpoint of having a so-called dendritic structure in the copolymer of the aforementioned component (A2), and from the viewpoint of crack resistance and controllability after the coating film is fully cured (in Grade C), can typically be 99 mol% or less, preferably 97 mol% or less, more preferably 95 mol% or less, and even more preferably 93 mol% or less. From the viewpoint of making the above-mentioned component (A2) have a so-called dendritic structure, and from the viewpoint of crack resistance and controllability after the coating film is fully cured (in Grade C), the content of the building units derived from the polyfunctional thiols of the above-mentioned component (a2) copolymer (hereinafter, sometimes simply referred to as "(a2) content"), with the total sum of building units derived from polymerizable monomers being 100 mol%, can typically be 1 mol% or more, preferably 3 mol% or more, more preferably 5 mol% or more, and even more preferably 7 mol% or more. On the other hand, from the viewpoint of making the above-mentioned component (A2) copolymer have a so-called dendritic structure, and from the viewpoint of abrasion resistance, can typically be 50 mol% or less, preferably 40 mol% or less, more preferably 30 mol% or less, and even more preferably 20 mol% or less. Here, the sum of the content of the polyfunctional (meth)acrylate (a1) and the polyfunctional thiol (a2) described above, with the total sum of the building units derived from the polymerizable monomers being 100 mol%, can typically be 80 mol% or more, preferably 90 mol% or more, more preferably 95 mol% or more, even more preferably 99 mol% or more, and less than 100 mol%. Furthermore, "polymerizable monomer" means the aforementioned component (a1), the aforementioned component (a2), and monomers that can copolymerize with them. These copolymerizable monomers are typically compounds having carbon-carbon double bonds, typically compounds having ethylene double bonds. From the viewpoint of making the content of the above-mentioned (a2) polyfunctional thiol in the above-mentioned preferred range, the sulfur content in the above-mentioned component (A2) copolymer can generally be 0.1 to 12% by mass, preferably 0.5 to 10% by mass, more preferably 1 to 7% by mass, and even more preferably 1.5 to 5% by mass. Here, the sulfur content is determined by atomic absorption spectrometry (AED), using a microwave apparatus to ashed (wet decomposition) the sample with a mixed acid of nitric acid and hydrochloric acid (volume ratio 8:2), followed by filtration with an aqueous hydrochloric acid solution, and then bringing the filtrate to a final volume with purified water. Yttrium is used as an internal standard in this case. Furthermore, since sulfur readily combines with iron and other substances to form a precipitation, care should be taken to prevent this. Specifically, the sulfur content can be determined using the same method as described in paragraphs 0035 to 0039 of Japanese Patent Application Publication No. 2018-187924. From the perspective of balancing abrasion resistance and crack resistance after the coating film has fully hardened (in Grade C), the mass-average molecular weight (Mw) of polystyrene, obtained from the GPC curve determined by the GPC test of the copolymer of the aforementioned component (A2), is preferably 5,000 or more, more preferably 8,000 or more, and even more preferably 10,000 or more. On the other hand, from the perspective of the coatability of the coating containing the copolymer of the aforementioned component (A2), the mass-average molecular weight (Mw) is preferably 200,000 or less, more preferably 100,000 or less, and even more preferably 50,000 or less. From the perspective of balancing abrasion resistance and crack resistance after the coating film has fully hardened (in Grade C), the Z-average molecular weight (Mz) of polystyrene obtained from the GPC curve of the copolymer of the aforementioned component (A2) is preferably 5,000 or more, more preferably 10,000 or more, and even more preferably 30,000 or more. On the other hand, from the perspective of the coatability of the coating containing the copolymer of the aforementioned component (A2), the Z-average molecular weight (Mz) is preferably 200,000 or less, more preferably 150,000 or less, and even more preferably 120,000 or less. From the viewpoint of balancing abrasion resistance and crack resistance after the coating film has fully hardened (in Grade C), the number-average molecular weight (Mn) of polystyrene obtained from the GPC curve of the copolymer of the aforementioned component (A2) is preferably 300 or more, and more preferably 500 or more. On the other hand, from the viewpoint of the coatability of the coating containing the copolymer of the aforementioned component (A2), the number-average molecular weight (Mn) is preferably 100,000 or less, more preferably 50,000 or less, and even more preferably 20,000 or less. The GPC determination of the copolymer of the above-mentioned component (A2) can be performed in the same manner as the method described in the description of the above-mentioned component (A1). Figure 3 shows the differential molecular weight distribution curves of the component (A2-1) used in the examples. Three distinct peaks can be identified in the relatively low molecular weight region, with the equivalent molecular weights of polystyrene at the peaks being 340, 570, and 970 respectively, from the low molecular weight side. Furthermore, several broad, overlapping peaks can be identified on the high molecular weight side compared to these three peaks, confirming that the equivalent molecular weight of polystyrene for the component at the highest molecular weight side is approximately 200,000. In addition, the total average molecular weight (Mn) is 940, the mass average molecular weight (Mw) is 12,000, and the Z-average molecular weight (Mz) is 73,000. (B) Photopolymerization Initiator: The above-mentioned component (B) photopolymerization initiator is a compound that generates active species such as free radicals by irradiation with an effective electrical energy line. The above-mentioned component (B) photopolymerization initiator functions to polymerize and harden the above-mentioned component (A) effective electrical energy line hardening resin by generating active species such as free radicals, and to completely harden the coating film (transforming it into grade C). Examples of diphenyl ketone compounds that can be used as initiators for the aforementioned photopolymerization reactions include, for example, diphenyl ketone, methyl o-benzoate, 4-methyl diphenyl ketone, 4,4'-bis(diethylamine) diphenyl ketone, methyl o-benzoate, 4-phenyl diphenyl ketone, 4-benzoyl-4'-methyl diphenyl sulfide, 3,3',4,4'-tetra(tert-butylperoxycarbonyl) diphenyl ketone, and 2,4,6-trimethyl diphenyl ketone; benzoin compounds such as benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and biphenyl ketal; acetophenone, 2,2-dimethoxy-2-phenylacetophenone, 1-hydroxycyclohexylphenyl ketone, and 2-hydroxypropoxy-1 -{4-[4-(2-hydroxy-2-methyl-propionic)-benzyl]phenyl}-2-methyl-propane-1-one and other acetophenone compounds, α-hydroxyalkyl acetophenone compounds, and alkyl acetophenone compounds such as acetophenone dimethyl acetal; anthraquinone compounds such as anthraquinone, 2-ethanthraquinone, and 2-pentanthraquinone; thioxanthone compounds such as thioxanthone, 2,4-diethylthioxanthone, and 2,4-diisopropylthioxanthone; acetylphosphine oxide compounds; biimidazole compounds; titanocetamide compounds; oxime ester compounds; oxime phenyl acetate compounds; hydroxyketone compounds; triazine compounds; and aminobenzoate compounds, etc. Furthermore, the term "alkyl acetophenone compounds" as used above is defined as compounds having an acetophenone skeleton (benzene ring-CO-alkyl) or a structure derived from the acetophenone skeleton. In this alkyl phenyl ketone family of compounds, compounds that maintain a carbonyl C=O group derived from the acetophenone skeleton are equivalent to the aforementioned term "acetophenone family of compounds." That is, "acetophenone family of compounds" is a subcategory concept included under "alkyl phenyl ketone family of compounds." From the viewpoint of ensuring complete hardening of the coating film (becoming grade C) after 3D molding, a compound that generates free radicals by irradiation with an effective electrical energy line is preferred as the photopolymerization initiator of component (B). From the viewpoint of maintaining the coating film stably in the grade B state until 3D molding, an alkyl acetone compound or similar compound is preferred as the photopolymerization initiator of component (B), and a hydroxyalkyl acetone compound or similar compound is more preferred. Furthermore, from the viewpoint of suppressing the volatilization of the photopolymerization initiator caused by heat during 3D molding, a low-volatility initiator is preferred. Examples of low-volatility photopolymerization initiators include, for example, 1-hydroxycyclohexylphenyl ketone and 2-hydroxypropoxy-1-{4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]phenyl}-2-methyl-propane-1-one. As component (B) above, one or a mixture of two or more of these can be used. Taking into account the viewpoints of curing the coating to a Grade B state, maintaining the curing of the coating to a Grade B state, stably maintaining the coating to a Grade B state until three-dimensional molding, and ensuring complete curing (becoming Grade C) after three-dimensional molding, the amount of photopolymerization initiator of component (B) can be appropriately selected. Considering both the viewpoints of curing the coating to a Grade B state and ensuring complete curing (becoming Grade C) after three-dimensional molding, the amount of photopolymerization initiator of component (B), relative to 100 parts by mass of the effective electrical energy line curing resin of component (A), can typically be 1 part by mass or more, preferably 2 parts by mass or more, more preferably 3 parts by mass or more, and even more preferably 4 parts by mass or more. On the other hand, from the viewpoint of maintaining the hardening of the coating film at grade B and from the viewpoint of maintaining the coating film stably at grade B until three-dimensional molding, the amount of the photopolymerization initiator (B) can typically be 20 parts by mass or less, preferably 15 parts by mass or less, more preferably 12 parts by mass or less, and even more preferably 10 parts by mass or less. (C) The above-mentioned B-grade coating material for forming a film may preferably further contain the above-mentioned component (C) particles. The above-mentioned component (C) particles play a role in improving the surface hardness of the molded article (coating is C-grade) obtained by using the B-grade coating of the present invention. As for the aforementioned component (C) particles, inorganic particles and organic particles can be listed. Among the aforementioned inorganic particles, examples include, for instance, silica (silicon dioxide); metal oxide particles such as aluminum oxide, zirconium oxide, titanium dioxide, zinc oxide, germanium oxide, indium oxide, tin oxide, indium tin oxide, antimony oxide, and cerium oxide; metal fluoride particles such as magnesium fluoride and sodium fluoride; metal sulfide particles; metal nitride particles; and metal particles, etc. Examples of the aforementioned organic microparticles include, for example, silicone resins, styrene resins, acrylic resins, fluororesins, polycarbonate resins, ethylene resins, and resins that are hardened from amino compounds and formaldehyde. Among these, from the viewpoint of obtaining higher surface hardness, silica and alumina microparticles are preferred, and silica microparticles are even more preferred. Commercially available silica microparticles include SNOWTEX (trade name) from Nissan Chemical Industries, Ltd., and QUARTRON (trade name) from Fuso Chemical Industries, Ltd. Preferably, the surface of the particles of the aforementioned component (C), especially when inorganic particles are used as the aforementioned component (C), is treated using surface treatment agents such as silane coupling agents such as vinyl silane and amino silane; titanate coupling agents; aluminate coupling agents; organic compounds having reactive functional groups such as ethylene unsaturated groups and epoxy groups such as (meth)acrylyl, vinyl, and allyl; and fatty acids and fatty acid metal salts. By treating the surface in this way, the dispersibility of the aforementioned inorganic particles in the coating or the surface hardness can be improved. In one embodiment, the aforementioned component (C) particles may be particles that function as antibacterial or antiviral agents (hereinafter, sometimes referred to as "functional particles"). By using these functional particles, as part or all of the aforementioned component (C) particles (i.e., in an amount exceeding 0% by mass to less than 100% by mass), the coating of the present invention can be endowed with antibacterial and antiviral properties. In embodiments using these functional particles, the proportion of the aforementioned functional particles in the aforementioned component (C) particles can typically be 10% by mass or more to less than 100% by mass, preferably 30% by mass or more to less than 100% by mass, and more preferably 50% by mass or more to less than 100% by mass. Examples of such functional particles include, for instance, inorganic particles (hereinafter, sometimes referred to as "functional inorganic particles") that function as antibacterial or antiviral agents, such as copper compounds, silver compounds, tin compounds, molybdenum compounds, and zinc compounds. Examples of copper compounds mentioned above include, for instance, cuprous halides such as cuprous chloride (CuCl), cuprous bromide (CuBr), and cuprous iodide (CuI), as well as cuprous compounds such as cuprous thiocyanate (CuSCN); and copper carbonate (CuCO). 3) Copper oxide (CuO) and copper chloride (CuCl) 2) Copper compounds, etc. Examples of silver compounds include, for example, silver halide compounds such as silver iodide (AgI). Examples of tin compounds include, for example, tin tetraiodide (SnI). 4) Tin halide compounds, etc. Examples of molybdenum compounds mentioned above include, for example, molybdenum oxide (MoO). 3) Molybdenum oxide compounds such as molybdenum-silver composite oxides, molybdenum-zinc composite oxides, and molybdenum-copper composite oxides. Examples of zinc compounds mentioned above include, for instance, zinc oxide (ZnO) and other zinc oxide compounds. In addition to the above-mentioned functional microparticles, other examples include, for instance, potassium aluminum sulfate, silver / sodium / zirconium hydrogen phosphate, silver / magnesium / aluminum / phosphate glass (FDA FCN registration number 433), silver / magnesium / calcium / phosphate / borate glass (FDA FCN registration number 432), silver / zinc / magnesium / aluminum / calcium / sodium / boric acid / phosphate glass (FDA FCN registration number 476), silver / magnesium / sodium / phosphate glass (FDA FCN registration number 434), silver / magnesium / zinc / aluminum / calcium / sodium / boric acid / phosphate glass (FDA FCN registration number 1981), silver zeolite (CAS No. 0130328-18-6), silver-copper zeolite (CAS No. 0130328-19-7), silver-zinc zeolite (CAS No. 0130328-20-0), and copper-tin alloys, etc. As the particles of component (C) mentioned above, one or a mixture of two or more of them may be used. For example, as the particles of component (C) mentioned above, one or a mixture of one or more organic particles and inorganic particles may be used. In addition, for example, as the particles of component (C) mentioned above, one or a mixture of one or more functional particles and other particles (organic particles and / or inorganic particles) may be used. From the perspective of maintaining coating transparency and ensuring improved hardness, the average particle size of the aforementioned component (C) can typically be below 300 nm, preferably below 200 nm, and even more preferably below 120 nm. On the other hand, there is no particular limitation on the lower limit of the average particle size, and the particles that can usually be obtained are usually as small as about 1 nm. In this specification, the average particle size in the particle size distribution curve measured using a laser diffraction / scattering particle size analyzer and the laser diffraction / scattering method is the particle size accumulated from the smallest particles to 50% by mass. For example, the laser diffraction / scattering particle size analyzer can be the "MT3200II" (trade name) from Nikkiso Corporation. The amount of the above-mentioned component (C) particles is optional and therefore not subject to special restrictions. From the viewpoint of surface hardness and crack resistance after complete curing (becoming Grade C), the amount of the above-mentioned component (C) particles can be appropriately selected. From the viewpoint of surface hardness after complete curing (becoming Grade C), the amount of the above-mentioned component (C), relative to 100 parts by mass of the effective electrical energy line-curing resin of the above-mentioned component (A), is preferably 10 parts by mass or more, more preferably 80 parts by mass or more, even more preferably 120 parts by mass or more, and most preferably 150 parts by mass or more. On the other hand, from the viewpoint of crack resistance after complete curing (becoming Grade C), the amount of the above-mentioned component (C) particles is preferably 500 parts by mass or less, more preferably 400 parts by mass or less, even more preferably 300 parts by mass or less, and most preferably 250 parts by mass or less. In embodiments where the aforementioned component (C) microparticles include the aforementioned functional microparticles, the amount of the functional microparticles is appropriately determined from the viewpoint of reliably exhibiting antibacterial and antiviral properties and from the viewpoint of ensuring that the total amount of the aforementioned component (C) does not exceed the aforementioned range. From the viewpoint of reliably exhibiting antibacterial and antiviral properties, the amount of the functional microparticles, relative to 100 parts by mass of the effective electrical energy line-curing resin of the aforementioned component (A), can typically be 1 part by mass or more, preferably 4 parts by mass or more, more preferably 7 parts by mass or more, and even more preferably 10 parts by mass or more. On the other hand, from the viewpoint of crack resistance after complete curing (becoming Grade C), the amount of the functional microparticles can preferably be 500 parts by mass or less, more preferably 400 parts by mass or less, even more preferably 300 parts by mass or less, and most preferably 250 parts by mass or less. In other embodiments, from the above viewpoint, the amount of the functional microparticles can be 10 to 200 parts by mass, 10 to 100 parts by mass, or 10 to 50 parts by mass. (D) Water-repellent agent: The above-mentioned Class B coating for forming a coating film may preferably further include the above-mentioned component (D) water-repellent agent. By using the above-mentioned component (D) water-repellent agent, the abrasion resistance, stain resistance, and stain wiping properties of the molded body (coating film is Class C) obtained by using the Class B coating film of the present invention can be improved. Examples of water-repellent agents as component (D) include, for example, wax water-repellent agents such as paraffin wax, polyethylene wax, and propylene-ethylene copolymer wax; silicone water-repellent agents such as silicone oil, silicone resin, polydimethylsiloxane, and alkylphenyl ketone; and fluorinated water-repellent agents such as fluorinated polyether water-repellent agents and fluorinated polyalkane water-repellent agents. Of these, from the viewpoint of abrasion resistance and water-repellent properties, a fluorinated water-repellent is preferred as the aforementioned component (D) water-repellent. From the viewpoint of abrasion resistance, water-repellent properties, and preventing the leakage of component (D) by forming chemical bonds or even strong interactions between component (D) and the resin effectively cured by electrical energy lines of component (A), a fluorinated water-repellent containing a (meth)acrylic group (hereinafter sometimes simply referred to as "fluorinated water-repellent containing a (meth)acrylic group") is preferred. Here, the fluorinated water-repellent containing a (meth)acrylic group is a compound having one or more (meth)acrylic groups within its molecule, and having one or more, preferably three or more, more preferably five or more fluorine-carbon bonds within its molecule (typically, a structure in which one or two or more hydrogen atoms of an organic functional group such as a hydrocarbon group are replaced by fluorine atoms), and which performs water-repellent functions. Examples of fluoropolymers containing (meth)acrylic acid group include, for example, fluoroether water-repellents containing (meth)acrylic acid group, fluoroalkyl water-repellents containing (meth)acrylic acid group, fluoroolefin water-repellents containing (meth)acrylic acid group, fluoropolyether water-repellents containing (meth)acrylic acid group, fluoropolyalkyl water-repellents containing (meth)acrylic acid group, and fluoropolyolefin water-repellents containing (meth)acrylic acid group. As the aforementioned component (D) water-repellent agent, it is more preferably a fluoropolymer water-repellent agent containing (meth)acrylic groups (a compound containing both (meth)acrylic groups and fluoropolymer groups within its molecule). From the viewpoint of appropriately adjusting the chemical bonds and interactions between the aforementioned component (D) and the effectively electrically conductive resin of the aforementioned component (A), maintaining high transparency while exhibiting good abrasion resistance and water repellency, and preventing the overflow of the aforementioned component (D), a mixture of an acrylonitrile-containing fluoropolymer water-repellent agent and a methacrylic fluoropolymer water-repellent agent is most suitable. As the above-mentioned component (D) water-repellent agent, one or a mixture of two or more of these can be used. The amount of the water-repellent component (D) is optional and therefore not subject to special restrictions. From the viewpoint of achieving good abrasion resistance, stain resistance, and stain-wiping properties after complete curing (becoming Grade C), the amount of the water-repellent component (D) can be appropriately determined. From the viewpoint of obtaining the desired effect of the component (D), the amount of the water-repellent component (D), relative to 100 parts by weight of the effective electrical wire-curing resin of the component (A), can typically be 0.01 parts by weight or more, preferably 0.05 parts by weight or more, more preferably 0.1 parts by weight or more, and even more preferably 0.2 parts by weight or more. On the other hand, from the viewpoint of preventing problems such as spillage of the component (D), the amount of the water-repellent component (D) can typically be 7 parts by weight or less, preferably 4 parts by weight or less, more preferably 2 parts by weight or less, and even more preferably 1 part by weight or less. Without departing from the purpose of this invention, the above-mentioned Class B coating for film formation (a coating comprising the above-mentioned component (A) effective electrical energy line curing resin and the above-mentioned component (B) photopolymerization reaction initiator) may, as needed, contain one or more compounds having two or more isocyanate groups in one molecule, antistatic agents, surfactants, leveling agents, thixotropic agents, antifouling agents, printability modifiers, antioxidants, weathering stabilizers, lightfastness stabilizers, ultraviolet absorbers, heat stabilizers, inorganic particles, inorganic colorants, organic particles, organic colorants, and dispersants (e.g., amine dispersants such as phosphate esters of high molecular weight copolymers having polyamine structures). The amount of these additives used is not particularly limited; for example, from the viewpoint of obtaining the desired effect of the additive, it may typically be 0.001 parts by mass or more relative to 100 parts by mass of the above-mentioned component (A) effective electrical energy line curing resin, and from the viewpoint of not hindering the desired effect of this invention, it may typically be 10 parts by mass or less. The aforementioned Class B coating for film formation is preferably free of thermal polymerization initiators. By ensuring that the Class B coating for film formation does not contain the aforementioned thermal polymerization initiator, it is easier to maintain the formed coating in a Class B state, and it is easier to stably maintain the coating in a Class B state until three-dimensional molding. Here, "free of" means that the aforementioned thermal polymerization initiator is not intentionally incorporated. In cases where the aforementioned thermal polymerization initiator is intentionally incorporated, it is typically 0.01 parts by mass or more relative to 100 parts by mass of the effective electrical energy line curing resin of component (A). Therefore, the statement "the aforementioned Class B coating for film formation does not contain the aforementioned thermal polymerization initiator" can also be interpreted as the content of the aforementioned thermal polymerization initiator being, relative to 100 parts by mass of the effective electrical energy line curing resin of component (A), typically less than 0.01 parts by mass, preferably less than 0.005 parts by mass, more preferably less than 0.001 parts by mass, even more preferably less than 0.0005 parts by mass, and most preferably about 0 parts by mass. The aforementioned thermal polymerization initiators are compounds that generate active species such as free radicals upon heating. Furthermore, in this specification, compounds that generate active species such as free radicals upon irradiation (or light irradiation) or heating by an effective electrical line are classified as thermal polymerization initiators. Examples of such thermal polymerization initiators include azo compounds such as 2,2'-azobis(2-methylpropionitrile); organic peroxides such as benzoyl peroxide; and benzenesulfonates such as p-cyclohexyl toluenesulfonate. To dilute to an easily coatable concentration, the aforementioned Class B coating material may also contain a solvent, if necessary. The solvent is not particularly limited as long as it does not react with or catalyze (promote) the self-reaction (including degradation reactions) of the aforementioned components (A), (B), and other optional components. Examples of such solvents include, for instance, 1-methoxy-2-propanol, ethyl acetate, n-butyl acetate, toluene, methyl ethyl ketone, isobutyl ketone, diacetone alcohol, and acetone. One or a mixture of two or more of these solvents may be used. The aforementioned Class B coating for film formation can be obtained by mixing and stirring the components. The thickness of the Class B coating of this invention is not particularly limited. From the viewpoint of surface hardness, abrasion resistance, and chemical resistance after complete curing (becoming Class C), the thickness of the Class B coating of this invention can typically be 0.5 μm or more, preferably 1 μm or more, more preferably 5 μm or more, and even more preferably 10 μm or more. On the other hand, from the viewpoint of three-dimensional forming properties, the thickness of the Class B coating can typically be 100 μm or less, preferably 50 μm or less, more preferably 30 μm or less, and even more preferably 20 μm or less. From the viewpoint of three-dimensional formability, the tensile elongation of the Class B coating of the present invention can typically be 10% or more, preferably 20% or more, more preferably 25% or more, and even more preferably 30% or more. A higher tensile elongation is preferred. Here, the tensile elongation is the value measured according to JIS K7127:1999 using two types of test pieces (width 15 mm, total length 150 mm) collected in a manner that aligns the width direction of the Class B coating or the laminated film having the Class B coating with the stretching direction, under conditions of a gauge length of 50 mm, an initial chuck distance of 100 mm, and a test speed of 10 mm / min. The surface pencil hardness of the B-grade coating of this invention after complete hardening (becoming C-grade) can typically be H or higher (1H or higher), preferably 3H or higher, more preferably 4H or higher, even more preferably 5H or higher, and most preferably 6H or higher. Higher pencil hardness is preferred. Here, pencil hardness is the value measured according to JIS K5600-5-4:1999, under test conditions of 25 mm length and 750 g load. 3. Class B Coating Laminated Film The Class B coating laminate of this invention includes the Class B coating of this invention. The Class B coating laminate of this invention has the Class B coating of this invention on at least one surface of a thin film substrate. The Class B coating laminate of this invention typically has the Class B coating of this invention on one surface of a thin film substrate, and the Class B coating forms a surface. The Class B coating laminate of the present invention can be manufactured using the aforementioned Class B coating forming coating (a coating comprising component (A) an effective power line curing resin and component (B) a photopolymerization reaction initiator), by an optional method, and by forming the Class B coating of the present invention on at least one surface of the aforementioned film substrate. Preferably, the Class B coating laminate of the present invention is manufactured using the aforementioned Class B coating forming coating, by the Class B coating manufacturing method of the present invention, and by forming the Class B coating of the present invention on at least one surface of the aforementioned film substrate. The method for manufacturing the Class B coating of the present invention has been described in section 1. Manufacturing method of Class B coating. The coating material for forming the above-mentioned Class B coating (a coating material containing the above-mentioned component (A) effective power line curing resin and the above-mentioned component (B) photopolymerization reaction initiator) has been described in section 2. The aforementioned thin film substrate is a thin film that forms the Class B coating of the present invention on at least one surface thereon. There are no particular limitations on the film substrates mentioned above, and any film can be used as the film substrate. Examples of such films include, for instance, polyester resins such as aromatic polyesters and aliphatic polyesters; acrylic resins; polycarbonate resins; poly(meth)acrylamide resins; polyolefin resins such as polyethylene, polypropylene, and poly4-methylpentene-1; cellulose resins such as cellophane, triacetylcellulose, diacetylcellulose, and acetylcellulose butyrate; styrene resins such as polystyrene, acrylonitrile-butadiene-styrene copolymer (ABS resin), styrene-ethylene-butadiene-styrene copolymer, styrene-ethylene-propylene-styrene copolymer, and styrene-ethylene-ethylene-propylene-styrene copolymer; polyvinyl chloride resin; polyvinylidene chloride resin; polyvinylidene fluoride resin; and other resin films such as polyvinyl alcohol, ethylene-vinyl alcohol, polyetheretherketone, nylon, polyamide, polyimide, polyurethane, polyetherimide, polyurethane, and polyether ether. These films include non-directional films, uniaxially oriented films, and biaxially oriented films. They also include laminated films comprising two or more layers of one or more of these types. Furthermore, these films can be transparent or opaque, can be concealed, can be colored, or can have an inherent color. When the thin film substrate is used as one of the constituent materials of the molded body of the present invention (described in section “4. Molded Body” below), from the viewpoint of improving the adhesion between the thin film substrate and the Class B coating of the present invention, the coating forming surface of the thin film substrate can be a material that can undergo easy adhesion treatments such as corona discharge treatment, plasma treatment, and anchoring coating formation. When the aforementioned thin film substrate is used as one of the constituent materials of the molded body of the present invention, the thickness of the thin film substrate can be appropriately determined considering the application of the molded body. From a handling point of view, the thickness of the thin film substrate is typically 20 μm or more, preferably 50 μm or more. From a strength point of view, the thickness of the thin film substrate is typically 100 μm or more, preferably 150 μm or more. On the other hand, from a lightweight point of view, the thickness of the thin film substrate is typically 2000 μm or less, preferably 800 μm or less, and more preferably 600 μm or less. When the aforementioned film substrate is used as one of the constituent materials of the molded body of the present invention, it is preferable to use a film substrate with high transparency and colorlessness. This allows the Class B coated laminated film of the present invention to be preferably used for articles requiring high transparency and colorlessness, such as vehicle parts like vehicle dashboards. Examples of such films include, for instance, cellulose ester resins such as triacetyl cellulose; polyester resins such as polyethylene terephthalate; cyclic hydrocarbon resins such as ethylene-norbornene copolymer; acrylic resins such as polymethyl methacrylate, polyethyl methacrylate, and ethylene-cyclohexane-(meth)acrylate copolymer; aromatic polycarbonate resins; polypropylene and polyolefin resins such as poly(4-methylpentene-1); polyamide resins; polyarylate resins; polymeric polyurethane acrylate resins; and transparent resin films such as polyimide resins. These films include non-directional films, uniaxially oriented films, and biaxially oriented films. Furthermore, such films include laminated films in which one or more of the same type are laminated in two or more layers. When the Class B coated laminated film of the present invention is used in articles requiring high transparency and colorlessness, the total light transmittance of the Class B coated laminated film of the present invention, after the Class B coating is fully cured (becoming Class C), can typically be 80% or more, preferably 85% or more, more preferably 88% or more, and even more preferably 90% or more. Higher total light transmittance is better. Here, the total light transmittance is the value measured according to JIS K7361-1:1997. As a turbidimeter, for example, the turbidimeter "NDH2000" (trade name) from Nippon Denshoku Kogyo Co., Ltd. can be used. When the Class B coating laminate of the present invention is used in articles requiring high transparency and colorlessness, and where clear transparency is desired, the haze of the Class B coating laminate of the present invention, after the Class B coating has fully hardened (becomes Class C), can typically be less than 3%, preferably less than 2%, and more preferably less than 1%. From the viewpoint of obtaining clear transparency, the lower the haze, the better. When the Class B coating laminate of the present invention is used in articles requiring high transparency and colorlessness, and where anti-glare is desired, the haze of the Class B coating laminate of the present invention, after the Class B coating is fully hardened (becomes Class C), also depends on the desired level of anti-glare, but can typically be 3 to 30%, preferably 5 to 25%, and more preferably 7 to 20%. When the Class B coated laminated film of the present invention is used in articles requiring high transparency and colorlessness, the yellow index of the Class B coated laminated film of the present invention can typically be 5 or less, preferably 3 or less, more preferably 2 to -2, and even more preferably 1 to -1. Here, the yellow index is the value measured according to JIS K7105:1981. As a colorimeter, for example, the "SolidSpec-3700" colorimeter (trade name) from Shimadzu Corporation can be used. The aforementioned transparent resin film is preferably a transparent resin film of acrylic resin. Examples of the aforementioned acrylic resin include, for instance, (meth)acrylate (co)polymers, copolymers primarily comprising building units derived from (meth)acrylates (typically 50 mol% or more, preferably 65 mol% or more, more preferably 70 mol% or more), and modified forms thereof. Furthermore, (meth)acrylate means acrylic acid or methacrylic acid. Also, (co)polymer means polymer or copolymer. Examples of the aforementioned (meth)acrylate (co)polymers include, for example, poly(meth)acrylate, poly(meth)acrylate, poly(meth)acrylate, poly(meth)acrylate, poly(meth)acrylate, poly(meth)acrylate, methyl methacrylate-butyl methacrylate copolymer, and ethyl methacrylate-butyl methacrylate copolymer. Examples of copolymers that primarily comprise building units derived from the aforementioned (meth)acrylates include, for instance, ethylene-(meth)acrylate copolymers, styrene-(meth)acrylate copolymers, ethylenecyclohexane-(meth)acrylate copolymers, maleic anhydride-(meth)acrylate copolymers, and N-substituted maleic diimide-(meth)acrylate copolymers. Examples of such modified polymers include, for instance, polymers that introduce a lactone ring structure through an intramolecular cyclization reaction; polymers that introduce glutaric anhydride through an intramolecular cyclization reaction; and polymers that introduce a glutaric anhydride structure by reacting them with a glutariminizing agent (such as methylamine, cyclohexylamine, and ammonia). Examples of transparent resin films made from the aforementioned acrylic resins include films composed of one or more mixtures of these resins. Furthermore, such films may comprise laminated films in which one or more of these resins are stacked in two or more layers. As the above-mentioned transparent resin films, preferably, copolymers of (meth)acrylates such as N-substituted cis-butylene diamide-(meth)acrylate methyl ester copolymers with polymerizable monomers having an amide configuration; A transparent film of a polymer (hereinafter, these are sometimes referred to collectively as “poly(meth)acrylamide resin”) by reaction of the chemical agent, a transparent multilayer film comprising 1 or more layers formed using the above-mentioned poly(meth)acrylamide resin. By using the transparent film or the transparent multilayer film as a thin film substrate for the Class B coating laminate film of the present invention, the molded body formed using the Class B coating laminate film of the present invention can become one with good surface hardness, abrasion resistance, transparency, surface smoothness, appearance, stiffness, heat resistance and thermal dimensional stability. The above-mentioned poly(meth)acrylamide resin may also be defined as a thermoplastic resin with two configurations of acrylic and acrylamide configurations. Due to its acrylic construction, the above-mentioned poly(meth)acrylamide resins have the characteristics of high transparency, high surface hardness, and high rigidity of acrylic resins. Also, due to its amine configuration, the above-mentioned poly(meth)acrylamide resin has the characteristics of good heat resistance and dimensional stability of polyimide. In addition, the above-mentioned poly(meth)acrylamide resins are usually improved from the disadvantage of the pale yellow coloration of polyamide to reddish brown. Considering from the viewpoint of heat resistance, the glass transition temperature of the above-mentioned poly(methyl)acrylamide resin can be usually above 110°C, preferably above 115°C, more preferably above 120°C, more preferably above 130°C, and more preferably above 140°C. On the other hand, considering from the point of view of three-dimensional formability, the glass transition temperature of the above-mentioned poly(meth)acrylamide resin can be usually below 170°C, preferably below 165°C, more preferably below 160°C, and more preferably below 155°C. Here, the glass transition temperature is, in accordance with JIS K7121-1987, the midpoint glass transition temperature calculated from the final rise process curve determined by the program of holding at 250°C for 3 min, cooling at 10°C / min to 20°C, holding at 20°C for 3 min, and warming up to 250°C at 10°C / min. As a differential scanning calorimeter, one can use, for example, the Diamond DSC from PerkinElmerJapan Corporation. The yellow index of the aforementioned poly(meth)acrylamide resin can typically be 5 or less, preferably 3 or less, more preferably 2 to -2, and even more preferably 1 to -1. By using a poly(meth)acrylamide resin with a yellow index of 5 or less, Class B coating laminates suitable for the color of vehicle parts such as vehicle dashboards can be obtained, as well as molded articles using these. Here, the yellow index is the value measured according to JIS K7105:1981. As a colorimeter, for example, the "SolidSpec-3700" colorimeter (trade name) from Shimadzu Corporation can be used. From the viewpoint of extrusion load and molten film stability during film production, the melt mass flow rate of the above-mentioned poly(meth)acrylamide resin (measured according to ISO 1133, at 260°C and 98.07 N) is preferably 0.1 to 20 g / 10 min, and more preferably 0.5 to 10 g / 10 min. Without departing from the purpose of this invention, the aforementioned poly(meth)acrylamide resin may, as needed, further comprise thermoplastic resins other than poly(meth)acrylamide resin; pigments, inorganic fillers, organic fillers, resin fillers; lubricants, antioxidants, weather stabilizers, heat stabilizers, release agents, antistatic agents, and surfactants, etc. The amount of these optional components, when the aforementioned poly(meth)acrylamide resin is set to 100 parts by weight, is typically less than 10 parts by weight or about 0.01 to 10 parts by weight. The aforementioned transparent resin film is preferably a transparent multilayer film formed by directly laminating an acrylic resin layer (α) and an aromatic polycarbonate resin layer (β) in the above order. More preferably, the aforementioned transparent resin film is a transparent multilayer film formed by directly laminating a first acrylic resin layer (α1), an aromatic polycarbonate resin layer (β), and a second acrylic resin layer (α2) in the above order. While acrylic resins offer superior surface hardness, their machinability tends to become insufficient. In contrast, aromatic polycarbonate resins offer better machinability, but their surface hardness tends to become insufficient. Therefore, by using a transparent multilayer film composed of the aforementioned layers, the shortcomings of both can be compensated for. After the Grade B coating has fully hardened (Grade C), a Grade B coating laminate film with both superior surface hardness and machinability can be easily obtained. Hereinafter, as an example of forming a Class B coating on the α1 layer side, a transparent multilayer film formed by directly laminating the first acrylic resin layer (α1), the aromatic polycarbonate resin layer (β), and the second acrylic resin layer (α2) in the above order will be described. The thickness of the α1 layer is not particularly limited, but from the viewpoint of the surface hardness after the B-grade coating is fully hardened (C-grade), it can typically be 20 μm or more, preferably 40 μm or more, even more preferably 50 μm or more, and even more preferably 80 μm or more. The thickness of the α2 layer is not subject to any special restrictions, but from the viewpoint of resistance to curling, it is preferable to have the same thickness as the α1 layer. Furthermore, the term "same layer thickness" here, strictly speaking from a physicochemical perspective, should not be interpreted as the same layer thickness. Rather, it should be interpreted as the same layer thickness within the range of steps and quality control typically implemented in industry. This is because as long as the layer thickness is the same within the range of steps and quality control typically implemented in industry, the curl resistance of the multilayer film can be well maintained. In the case of amorphous multilayer films (co-extruded polyolefin films) formed by T-die co-extrusion, the steps and quality control are typically carried out within a range of approximately -5 to +5 μm; therefore, it should be interpreted as, for example, that a layer thickness of 65 μm is the same as 75 μm. The thickness of the aforementioned β layer is not subject to any special restrictions, but from the viewpoint of machinability, it can typically be 20 μm or more, and preferably 70 μm or more. The acrylic resin used in the α1 layer and the α2 layer described above. Furthermore, the acrylic resin used for the α1 layer and the acrylic resin used for the α2 layer may also be acrylic resins with different resin properties, such as different types, melt flow rates, and glass transition temperatures. From the viewpoint of the curl resistance of the hard-coated laminated film, it is preferable to use resins with the same resin properties. For example, using resins from the same batch and at the same quasi-grade is one of the preferred embodiments. As the aromatic polycarbonate resin used for the above-mentioned β layer, one or more of the following can be used: for example, a polymer of aromatic dihydroxy compounds such as bisphenol A, dimethyl bisphenol A, and 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane obtained by interfacial polymerization with phosgene; or a polymer of aromatic dihydroxy compounds such as bisphenol A, dimethyl bisphenol A, and 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane obtained by transesterification with dicarbonate diesters such as diphenyl carbonate. As a preferred optional component that can be included in the aforementioned aromatic polycarbonate resin, the core-shell rubber can be listed. When the total amount of aromatic polycarbonate resin and core-shell rubber is 100 parts by weight, using the core-shell rubber in an amount of 0 to 30 parts by weight (100 to 70 parts by weight of aromatic polycarbonate resin), preferably 0 to 10 parts by weight (100 to 90 parts by weight of aromatic polycarbonate resin), can further improve machinability and impact resistance. Examples of core-shell rubbers include, for instance, methacrylate-styrene / butadiene rubber graft copolymers, acrylonitrile-styrene / butadiene rubber graft copolymers, acrylonitrile-styrene / ethylene-propylene rubber graft copolymers, acrylonitrile-styrene / acrylate graft copolymers, methacrylate / acrylate rubber graft copolymers, methacrylate-styrene / acrylate rubber graft copolymers, and methacrylate-acrylonitrile / acrylate rubber graft copolymers. One or a mixture of two or more of these can be used as core-shell rubbers. Furthermore, without departing from the purpose of this invention, the aforementioned aromatic polycarbonate resin may, as needed, further comprise thermoplastic resins other than the aromatic polycarbonate resin and the core-shell rubber; pigments, inorganic fillers, organic fillers, resin fillers; lubricants, antioxidants, weather stabilizers, heat stabilizers, release agents, antistatic agents, and surfactants, etc. The amount of these optional components is typically less than 10 parts by weight or about 0.01 to 10 parts by weight when the total amount of aromatic polycarbonate resin and core-shell rubber is set to 100 parts by weight. The manufacturing method of the aforementioned transparent resin film is not particularly limited. As a preferred manufacturing method when the aforementioned transparent resin film is a transparent multilayer film formed by directly laminating a first poly(meth)acrylimide resin layer (α1), an aromatic polycarbonate resin layer (β), and a second poly(meth)acrylimide resin layer (α2) in the above-described order, the method described in Japanese Patent Application Publication No. 2015-083370 can be cited as an example. Furthermore, when forming the aforementioned Class B coating, in order to improve the adhesion strength to the aforementioned Class B coating, corona discharge treatment, plasma treatment, and anchoring coating formation, or other easy-adhesion treatments, can be performed on one or both sides of the aforementioned transparent resin film in advance. The total light transmittance of the aforementioned transparent resin film can typically be 85% or higher, preferably 88% or higher, and even more preferably 90% or higher. Higher total light transmittance is better. By using a transparent resin film with a total light transmittance of 85% or higher, articles requiring higher transparency can be obtained, such as Class B coating laminates suitable for vehicle parts like dashboards, and molded articles using these. Here, the total light transmittance is a value measured according to JIS K7361-1:1997. A turbidimeter can be used, for example, the NDH2000 turbidimeter (trade name) from Nippon Denshoku Kogyo Co., Ltd. The yellow index of the aforementioned transparent resin film can typically be 5 or less, preferably 3 or less, more preferably 2 to -2, and even more preferably 1 to -1. By using a transparent resin film with a yellow index of 5 or less, articles requiring higher colorlessness can be obtained, such as Class B coating laminates suitable for vehicle parts like dashboards, and molded articles using these. Here, the yellow index is the value measured according to JIS K7105:1981. As a colorimeter, for example, the "SolidSpec-3700" colorimeter (trade name) from Shimadzu Corporation can be used. The retardation of the aforementioned transparent resin film can typically be 75 nm or less, preferably 50 nm, more preferably 40 nm or less, even more preferably 30 nm or less, even more preferably 20 nm or less, and most preferably 15 nm or less. Lower retardation is better. By using a transparent resin film with a retardation of 75 nm or less, articles requiring clear transparency can be obtained, such as Class B coating laminates suitable for vehicle parts like dashboards, and molded articles using these. Here, the retardation is a value measured using the parallel NIKKOR rotation method. As a measuring device, for example, the "KOBRA-WR" (trade name) phase difference measuring device using the parallel NIKKOR rotation method from Oji Measurement Equipment Co., Ltd. can be used. When the Class B coating formed therein is transferred to other substrates for use, the Class B coating of the present invention formed on the surface of the aforementioned thin film substrate can be transferred to other substrates (e.g., thin films, sheets, plates, and substrates of any shape) for use (i.e., when the thin film substrate does not constitute a molded body), the coating forming surface of the aforementioned thin film substrate can be treated for easy peeling. When the Class B coating of the present invention formed on the surface of the aforementioned thin film substrate is transferred to other substrates for use, the thickness of the aforementioned thin film substrate is not particularly limited. From a controllability point of view, the thickness of the aforementioned thin film substrate can typically be 20 μm or more, preferably 30 μm or more. On the other hand, from an economic point of view, the thickness of the aforementioned thin film substrate can typically be 100 μm or less, preferably 75 μm or less. When the Class B coating of the present invention formed on the surface of the above-mentioned thin film substrate is transferred to other substrates for use, the above-mentioned thin film substrate is preferably, for example, a biaxially oriented film of polyester resin such as polyethylene terephthalate and a biaxially oriented film of polypropylene resin. 4. Molded Body The molded body of the present invention has a coating (Grade C) that fully hardens the Grade B coating of the present invention. The molded body of the present invention typically comprises part or all of the surface of the molded body formed by the coating (Grade C) that fully hardens the Grade B coating of the present invention. The molded body of the present invention can be manufactured by fully hardening (becoming Grade C) the Grade B coating after the desired shape has been applied to the Grade B coating (and the substrate). Examples of such molded bodies include, for instance, films, sheets, and plates (molded bodies that maintain a flat shape) having a coating (C grade) that allows the B grade coating of the present invention to be fully hardened; molded bodies obtained by using films or sheets having the B grade coating of the present invention and then thermoforming them to obtain a desired shape by means of vacuum forming, pressure forming, or hot pressing, and then allowing the B grade coating to be fully hardened (becoming C grade); and composite molded bodies obtained by inserting films or sheets having the B grade coating of the present invention as skin materials into a mold, injecting any thermoplastic resin as a core material, and then allowing the B grade coating to be fully hardened (becoming C grade). Taking vacuum forming as an example, the method for manufacturing the molded body of the present invention is described, which uses the Class B coating laminate film of the present invention (the coating is Class B), and after applying three-dimensional forming methods such as vacuum forming and vacuum pressure forming to give it a three-dimensional shape, the Class B coating film is completely hardened (becomes Class C) to manufacture the molded body of the present invention. Figure 4 is a schematic diagram showing one example of a vacuum forming apparatus. First, as shown in Figure 4(a), the B-grade coating laminate 7 is heated and softened using a heating device 8 such as an infrared heater. Then, the B-grade coating laminate 7 is removed from the heating device 8 and the forming mold 9 is quickly placed on top, so that the side opposite to the B-grade coating side of the B-grade coating laminate 7 becomes the forming mold 9 side (Figure 4(b)). At this time, the forming mold 9 can also be preheated. Next, the space 10 between the B-grade coating laminate 7 and the forming mold 9 is depressurized, causing the B-grade coating laminate 7 to adhere to the forming mold 9, and the shape of the forming mold 9 is transferred to the B-grade coating laminate 7 to obtain a molded body 11 (with a B-grade coating) (Figure 4(c)). Before demolding the molded body 11 from the forming mold 9, the forming mold 9 can also be cooled. Next, the molded body of the present invention can be manufactured by using any effective power line irradiation device to completely harden the B-grade coating of the molded body 11 (to become C-grade). From the perspective of ensuring sufficient adhesion without leaving air residue between the Class B coated laminate film 7 and the molding die 9, the pressure of the aforementioned space 10 can preferably be below 10 kPa, and more preferably below 1 kPa. Furthermore, although lower pressure in the space 10 results in greater adhesion, considering that reducing the pressure would rapidly increase costs, and the mechanical strength of the Class B coated laminate film 7, the actual lower limit of the pressure in the space 10 can be 10 kPa. -5 Around kPa. Considering the need for sufficient irradiation to fully harden the Grade B coating (transforming it into Grade C), the irradiation dose of the aforementioned effective electrical energy lines can be appropriately selected and determined. The irradiation dose of these effective electrical energy lines can typically be 10–10000 mJ / cm². 2 The optimal range is 200–2000 mJ / cm². 2 The optimal value is 300–700 mJ / cm³. 2 . In one embodiment, the molded body of the present invention can be a coating (C grade) that allows the B grade coating of the present invention to fully harden, and any substrate. For example, the molded body of this embodiment can be manufactured by using the aforementioned substrate instead of the molding die 9, adhering the B grade coating laminate 7 to the aforementioned substrate, and then integrating it to allow the B grade coating to fully harden (become C grade). Examples of such substrates include, for instance, substrates made of wood materials such as wood, plywood, laminated boards, particleboard, and cardboard; substrates made of resin materials such as polystyrene, acrylonitrile-butadiene-styrene copolymer (ABS resin), polycarbonate, polyester, polyvinyl chloride, and polyolefins; substrates made of metal materials such as iron and aluminum; and substrates made of mineral materials such as gypsum and calcium silicate. The molded body of the present invention, having the superior characteristics described above, can therefore be preferably used as an article (including parts of the article). Examples of such articles include, for instance, image display devices such as liquid crystal displays, plasma displays, and electroluminescent displays, and their display panels, transparent conductive substrates, and housings; televisions, personal computers, tablet computers, smartphones, and their housings and display panels; refrigerators, washing machines, cabinets, wardrobes, and the panels constituting them; building doors and windows; vehicles, windows, windshields, roof windows, and dashboards; head-up displays, electronic signs, and their protective panels; shop windows; solar cells and their housings and front panels, etc. [Example] The present invention will now be described with reference to examples, but the present invention is not limited thereto. Methods for Determining and Evaluating Physical Properties (i) Three-Dimensional Formability 1. After preheating the laminated film (coating grade B) using an infrared heater, the laminated film is unfolded and stacked on a molding die preheated to 130°C (see Figure 5), with the side opposite to the coating surface of the laminated film becoming the molding die side. Figure 5(a) is a front view of the molding die, where the height (h) is 10 mm and the radius of curvature (R) of the surrounding curved portion is 16.25 mm. Figure 5(b) is a plan view of the molding die, where the outer diameter (φ) is 90 mm. As described above, after waiting 30 seconds with the laminated film unfolded and stacked on the molding die, the space between the laminated film and the molding die is depressurized to a pressure of 1.0 × 10⁻⁶. -3 The shape of the mold described above is transferred to the laminated film at a pressure of kPa to obtain a molded body (coating grade B). This is achieved by using a high-pressure mercury lamp-type ultraviolet irradiation device with a cumulative light intensity of 600 mJ / cm². 2 Under the conditions of irradiation, the Grade B coating of the molded body is completely hardened (becoming Grade C), resulting in a molded body (coating of Grade C). A person with corrected visual acuity of 1.0 visually observes the appearance of the molded body (coating of Grade C) with the naked eye or a magnifying glass (10x), and evaluates it according to the following standards. Alternatively, if the aforementioned laminated film has a protective film, after the Grade B coating is completely hardened by ultraviolet irradiation, the protective film is peeled off for visual observation. A: Even with a magnifying glass, no cracks, fissures, or appearance defects are observed. B: Even with a magnifying glass, no cracks or fissures are observed. However, when observed closely through light, slight cloudiness is visible. C: If a magnifying glass is used, slight cracks and fissures are visible in the surrounding curved areas. D: Cracks and fissures are also visible to the naked eye. (ii) Three-dimensional formability 2 The molding die has a height (h) of 13.5 mm, a radius of curvature (R) of 13.5 mm around the curve portion and an outer diameter (φ) of 90 mm. Otherwise, the molded body is manufactured, observed and evaluated in the same manner as in test (i) Three-dimensional formability 1 above. (iii) Tensile Elongation (Tensile Elongation of Laminated Film with Grade B Coating) According to JIS K7127:1999, two types of test pieces (15 mm wide, 150 mm total length) were collected from laminated films with Grade B coating, arranged such that the width direction of the laminated film was aligned with the tensile direction. The tensile elongation was measured under the conditions of a gauge length of 50 mm, an initial chuck distance of 100 mm, and a test speed of 10 mm / min. During the tensile test, the test piece was visually observed, and the tensile rate at the instant a crack appeared in the coating of the test piece was taken as the tensile elongation of the laminated film. Technically, the value of the tensile elongation in test (iii) can be considered equivalent to the tensile elongation of the Grade B coating of the laminated film. Furthermore, when the laminated film has a protective film, the protective film is peeled off after collecting the test piece for testing. (iv) Environmental Test 1. The molded body (coating grade C) obtained in test (ii) above will be treated in a gear oven at 90°C for 4 hours. A person with corrected visual acuity of 1.0 will visually observe the appearance of the molded body (coating grade C) with the naked eye or a magnifying glass (10x) and evaluate it according to the following standards. Additionally, if the laminated film has a protective film, the protective film will be peeled off after gear oven treatment for visual observation. A: No cracks, fissures, or appearance defects are observed even with a magnifying glass. B: No cracks or fissures are observed even with a magnifying glass. However, slight cloudiness is visible when observed at close range through light. C: Slight cracks and fissures are visible in the surrounding curved areas when using a magnifying glass. D: Cracks and fissures are also visible to the naked eye. (v) Environmental Test 2 Except that the temperature of the gear oven is changed to 130°C, the molded body is treated, observed and evaluated in the same way as in the above test (iv) Environmental Test 1. In the following tests: (vi) pencil hardness, (vii) total light transmittance, (viii) haze, (ix) chemical resistance, (x) checkerboard test, (xi) checkerboard test after damp heat treatment, and (xii) abrasion resistance, a high-pressure mercury lamp-type ultraviolet irradiation device was used with a cumulative light intensity of 600 mJ / cm². 2 Under the specified conditions, laminated films with a Class B coating were irradiated and completely cured (becoming Class C) as samples. For those with a protective film, the protective film was peeled off before testing. (vi) Pencil hardness was measured on the coated surface of the above samples according to JIS K 5600-5-4:1999, under the conditions of a test length of 25 mm and a load of 750 g, using Mitsubishi Pencil Corporation's "UNI" pencil (trade name). Whether scratches occurred was determined by visually observing the sample surface at a distance of 50 cm from the fluorescent lamp. (vii) The total transmittance of the above samples was measured in accordance with JIS K7361-1:1997 using a turbidimeter “NDH2000” (trade name) from Nippon Denshoku Kogyo Co., Ltd. (viii) The haze of the above samples was measured in accordance with JIS K7136:2000 using a turbidimeter “NDH2000” (trade name) from Nippon Denshoku Kogyo Co., Ltd. (ix) Chemical Resistance: 20 ml of Johnson & Johnson's "Neutrogena Ultra Sheer Dry-Touch Sunblock" (trade name) was mixed with 10 drops of Pilot ink red (trade name) from Pilot Corporation to prepare the test solution. A 100mm x 100mm test piece was taken from the sample. A 30mm x 40mm paper wiper (Nippon Paper Crecia Co., Ltd.'s "Kimwipe" (trade name)) was placed on the coated surface of the test piece. Ten drops of the test solution were evenly added to the paper wiper using a dropper. After addition, air bubbles were removed between the paper wiper and the test piece using tweezers to ensure adhesion. The paper wiper was then stored at 23°C and 50% relative humidity for 72 hours. The process of adding 10 drops of the test solution and removing air bubbles to ensure adhesion was repeated every 24 hours. After the specified time, remove the paper cloth containing the test solution from the test piece. Wipe the test piece with a damp paper cloth, then dry it with a dry paper cloth to remove the test solution adhering to the surface of the test piece. Then, a person with corrected visual acuity of 1.0 visually observes the test piece with the naked eye or a magnifying glass (10x) and evaluates it according to the following standards: A: No cracks are seen even with a magnifying glass. No color difference is observed between the areas of the laminated film coating that are in contact with the test solution and the areas that are not in contact. B: No cracks are seen even with a magnifying glass. However, a color difference is visible between the areas of the laminated film coating that are in contact with the test solution and the areas that are not in contact. (The contact areas are slightly reddish compared to the non-contact areas.) C: No cracks are seen with the naked eye. However, cracks are visible with a magnifying glass. D: Cracks are visible even with the naked eye. (x) Checkerboard Test (Coating Adhesion) Following JIS K5600-5-6:1999, after adding 100 checkerboard cuts (1 square = 1mm × 1mm) from the coating side of the sample, adhesive tape for the adhesion test is applied to the checkerboard and then peeled off after combing with fingers. The evaluation criteria follow Table 1 of the above JIS standards. Category 0: The cut edges are completely smooth, and none of the squares peel off. Category 1: Minor peeling of the coating at the cut intersections. The affected area of ​​the cross-cut does not significantly exceed 5%. Category 2: Peeling of the coating along the cut edges and / or at the intersections. The affected area of ​​the cross-cut significantly exceeds 5% but does not exceed 15%. Category 3: Significant peeling of the coating along the cut edges, partially or entirely, and / or partial or complete peeling of individual squares. The affected area of ​​the cross-cut significantly exceeds 15% but does not exceed 35%. Category 4: Significant peeling of the coating along the cut edge, either partially or entirely, and / or partial or complete peeling in multiple locations. The affected area of ​​the cross-section clearly exceeds 35% but does not exceed 65%. Category 5: This category applies to cases where the degree of peeling exceeds that of Category 4. (xi) Checkerboard test after damp heat treatment (damp heat test): The above samples were subjected to damp heat treatment for 72 hours at a temperature of 85°C and a relative humidity of 85%, and then the same test as the checkerboard test (x) was conducted to evaluate the adhesion. (xii) Abrasion Resistance (Steel Wool Resistance): Test pieces, measuring 150mm longitudinally and 50mm transversely, were placed in a JIS L0849:2013 vibration-type testing machine (friction testing machine type 2) with the machine direction of the laminated film aligned with the longitudinal direction of the test piece, making the coating the surface. Next, #0000 steel wool was installed on the friction terminal of the vibration-type testing machine, and a 250g load was applied. The coated surface of the test piece was rubbed back and forth 5 times at a moving speed of 300mm / min and a moving distance of 30mm on the friction terminal. The rubbing area was then visually observed. If no scratches were observed, the rubbing was repeated 5 times, and the visual observation of the rubbing area was repeated. Evaluation was performed according to the following criteria: A: No scratches were observed after 15 cycles. B: No scratches were observed after 10 cycles, but scratches were visible after 15 cycles. C: No scratches were observed after 5 cycles, but scratches were visible after 10 cycles. D: Scratches will be visible after 5 repetitions. The raw materials used are: (A) Effective power line curing resin; (A1) Ethyl carbamate (meth)acrylate; (A1-1) DAICEL-ALLNEX Co., Ltd.'s polyfunctional ethyl carbamate (meth)acrylate "EBECRYL284" (trade name). Solid content 100% by mass, number of functional groups 2, number average molecular weight 1000, mass average molecular weight 2900, Z-average molecular weight 4700; (A1-2) DAICEL-ALLNEX Co., Ltd.'s polyfunctional ethyl carbamate (meth)acrylate "EBECRYL4101" (trade name). Solid content 100% by mass, number of functional groups 3, number average molecular weight 1100, mass average molecular weight 2800, Z-average molecular weight 4900; (A1-3) Negami Kogyo Co., Ltd.'s diluent of polyfunctional ethyl carbamate (meth)acrylate "ART RESIN-952" (trade name). Solid content 60% by mass, number of functional groups 10, number average molecular weight 2500, mass average molecular weight 9100, Z-average molecular weight 23000. (A1-4) Diluted polyfunctional ethyl carbamate (meth)acrylate "ART RESIN-954" (trade name) from Nekami Kogyo Co., Ltd. Solid content 60% by mass, number of functional groups 6, number average molecular weight 2000, mass average molecular weight 4800, Z-average molecular weight 9600. (A2) A copolymer of (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol (A2-1) "SIRIUS-501" (trade name) from Osaka Organic Chemical Industry Co., Ltd. A diluted solution of a copolymer having a so-called dendritic structure of dipentaerythritol hexaacrylate and a 4-functional thiol. Solids content 50% by mass, sulfur content 2.2% by mass, mass average molecular weight 12,000, number average molecular weight 940, Z-average molecular weight 73,000. (B) Photopolymerization Initiators (B-1) IGM Resins' acetophenone photopolymerization initiator (2-hydroxypropoxy-1-{4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]phenyl}-2-methyl-propane-1-one) "Omnirad 127" (trade name). (B-2) IGM Resins' acetophenone photopolymerization initiator (1-hydroxycyclohexyl-benzophenone) "Omnirad 184" (trade name). (C) Microparticles (C-1) Nissan Chemical Co., Ltd.'s propylene glycol monomethyl ether dispersion of silica microparticles "PGM-AC-2140Y" (trade name). Solid content 42% by mass, average particle size 15 nm. (C-2) NBC Meshtec Co., Ltd.'s antiviral agent (ethanol suspension of cuprous iodide microparticles), cuprous iodide microparticles with an average particle size (the cumulative particle size from the smallest particles to 50% by mass in the particle size distribution curve determined by laser diffraction / scattering method) 120 nm, solid content 11% by mass. (D) Water-repellent agent (D-1) Shin-Etsu Chemical Industry Co., Ltd.'s diluted solution of an acrylonitrile-containing fluoropolyether water-repellent agent, "KY-1203" (trade name). Solid content 20% by mass. (D-2) Unimatec Co., Ltd.'s acrylonitrile-containing fluoroalkyl water-repellent agent (2-(perfluorobutyl)acrylate) "CHEMINOXFAAC-4" (trade name). Solid content 100% by mass. (E) Other Components (E-1) BYK Japan Co., Ltd.'s amine dispersant "DISPERBY K-145" (trade name). A phosphate salt of a high molecular weight copolymer with a polyamine structure. Amine value 71 mg KOH / g. Solid content 100% by mass. (H) Grade B coating for film formation (H-1) is prepared by mixing and stirring 50 parts by mass of the above-mentioned component (A1-1), 100 parts by mass of the above-mentioned component (A2-1) (equivalent to 50 parts by mass of solids content), 5 parts by mass of the above-mentioned component (B-1), 555 parts by mass of the above-mentioned component (C-1) (equivalent to 233 parts by mass of solids content), 1.25 parts by mass of the above-mentioned component (D-1) (equivalent to 0.25 parts by mass of solids content), and 233 parts by mass of methyl isobutyl ketone (referred to as "MIBK" in the table) to obtain a Grade B coating for film formation. The table also lists the converted values ​​of all solid contents except for the solvent. (H-2~H-11) As shown in any one of Tables 1 to 3, the coating is obtained in the same way as (H-1) except for the change of blending. In addition, the tables record the converted values ​​of the content of all solids except solvent. (P) Transparent resin film (P-1) is produced using a stretching and winding machine equipped with a co-extrusion T-die containing two types of 3-layer multi-manifolds and a mechanism for molding the molten film together with a first mirror roller (the roller that carries the molten film to the next transport roller side) and a second mirror roller. As the two outer layers (α1 layer and α2 layer) of the two types of 3-layer multilayer resin films, Evonik's poly(meth)acrylimide "PLEXIMID TT50" (trade name) is used as the outer layer, and Sumika Styron Polycarbonate Co., Ltd.'s aromatic polycarbonate "CALIBER301-4" (trade name) is used as the middle layer (β layer). The two layers are continuously co-extruded from the co-extrusion T-die. In order to make the α1 layer the side of the first mirror roller, it is fed between the rotating first mirror roller and the second mirror roller and molded to obtain a transparent resin film with a total thickness of 170 μm, an α1 layer thickness of 50 μm, a β layer thickness of 70 μm, and an α2 layer thickness of 50 μm. At this time, the set conditions are: T-shaped mold set temperature 300℃, first mirror roller set temperature 130℃, second mirror roller set temperature 120℃, and traction speed 9.5m / min. (Q) Protective Film (Q-1) Teijin Corporation's aromatic polycarbonate resin film "PanLightFilm PC-2151" (trade name), 125 μm thick. (Q-2) A film forming apparatus using a stretch winding machine equipped with a mechanism comprising a single-layer T-die and a first cooling roller (mirror metal roller) and clamping rollers (silicone rubber roller) to hold the molten film extruded from the single-layer T-die, and using BELL PET Corporation's copolymer polyethylene terephthalate resin "PIFG5" (trade name), a resin film with a thickness of 75 μm was obtained under the following conditions: a set temperature of 250°C for the T-die, a set temperature of 50°C for the first cooling roller, and a traction speed of 10.8 m / min. The side of this resin film on the first cooling roller side (high-gloss surface) was used as the bonding surface with the coating film. Example 1 (1) Corona discharge treatment is performed on both sides of (P-1). The wetting index of both sides is 64mN / m. (2) Then, a steel mold coating device is used to coat the α1 layer side surface of (P-1) to make the thickness of (H-1) after complete hardening (becoming grade C) 18μm, and a wet coating film is formed. (3) Next, the wet coating film is pre-dried by passing it through a drying oven with the oven temperature set at 90°C at a linear speed of 2 minutes from the inlet to the outlet to obtain a dry coating film. (4) Next, using the lamination device shown in FIG1, the laminate 1 with the dry coating film on the α1 layer side surface of (P-1) is placed on a rotating drum 3, so that the side opposite to the dry coating film of the laminate 1 becomes the side of the drum 3. At the same time, the protective film 2 of (Q-1) is stacked on the dry coating surface of the laminate 1, so that the first cooling roller side (high gloss surface) of the protective film 2 of (Q-1) becomes the dry coating surface side. It is pressed by the pressure roller 4 and then removed from the rotating drum 3 by the guide roller 6, resulting in a laminate 5 with the protective film 2 of (Q-1) stacked on the dry coating surface of the laminate 1 and temporarily adhered. At this time, the temperature of the rotating drum 3 is room temperature (23°C). (5) Next, the laminate having the order of (P-1), the dry coating and (Q-1) is placed in the high-pressure steam sterilizer "YKP-500" (trade name) of Kurihara Manufacturing Co., Ltd. and then subjected to high-pressure steam sterilization at a temperature of 50°C, a pressure of 0.5 MPa and a holding time of 10 minutes. (6) Next, an aging treatment was performed at 80°C for 2 hours to form a Grade B coating, resulting in a laminated film with a Grade B coating on the side surface of the α1 layer of (P-1) above. (7) The above tests (i) to (xii) were performed. The results are shown in Table 1. Examples 2-10: As coatings for forming Class B films, coatings shown in Table 1 or Table 2 were used instead of those described above (H-1). Otherwise, laminated films with Class B coatings were obtained in the same manner as in Example 1. Tests (i) to (xii) were performed as described above. The results are shown in Table 1 or Table 2. Example 11: As a coating material for forming a Class B coating, (H-11) was used instead of (H-1) as described above, and (Q-2) was used instead of (Q-1) as a protective film. Otherwise, a laminated film with a Class B coating was obtained in the same manner as in Example 1. Tests (i) to (xii) were performed as described above. The results are shown in Table 2. Example 12: When forming a wet coating, the coating was applied in such a way that the thickness after complete curing (becoming grade C) was 13 μm. Otherwise, a laminated film with grade B coating was obtained in the same manner as in Example 1. The above experiments (i) to (xii) were performed. The results are shown in Table 3. Example 13: Except for changing the pre-drying conditions to those shown in Table 1, a laminated film with a Class B coating was obtained in the same manner as in Example 1. The above experiments (i) to (xii) were performed. The results are shown in Table 3. Examples 14-17: Except for changing the autoclaving conditions to those shown in Table 1, laminated films with Grade B coatings were obtained in the same manner as in Example 1. The above experiments (i) to (xii) were performed. The results are shown in Table 3. Example 18: Except for omitting the autoclaving process, a laminated film with a grade B coating was obtained in the same manner as in Example 1. The above test (i) was performed, and numerous appearance defects caused by coating blistering were observed in the resulting molded body. Therefore, tests (ii) to (xii) were omitted. [Table 1] [Table 2] [Table 3] The manufacturing method of this invention enables the stable industrial production of Grade B coatings. A preferred manufacturing method of this invention enables the stable industrial production of Grade B coatings with excellent three-dimensional formability. The preferred Grade B coating of this invention exhibits excellent three-dimensional formability in Grade B and, after complete curing (in Grade C), good heat resistance, surface hardness, transparency, chemical resistance, coating adhesion, coating adhesion after damp heat testing, and abrasion resistance. Therefore, the Grade B coating of this invention is preferably used to impart surface hardness, abrasion resistance, and chemical resistance to the surfaces of molded bodies with three-dimensional shapes, such as housings of household appliances and information electronic devices, and automotive dashboards. Examples of embodiments of the Class B coating of the present invention are summarized below. [1]. A Class B coating is formed using a coating comprising (A) an effective power line curing resin and (B) a photopolymerization initiator; the tensile elongation of the Class B coating is 10% or more. [2]. The Class B coating described in [1] further comprises (C) particles with an average particle size of 1 to 300 nm. [3]. The Class B coating described in [1] or [2] further comprises (D) a water-repellent agent. [4]. The Class B coating described in any one of [1] to [3] does not contain a thermal polymerization initiator. [5]. The Class B coating described in any one of [1] to [4], wherein the (A) effective power line curing resin comprises (A1) ethyl carbamate (meth)acrylate. [6]. The Class B coating described in any one of [1] to [5], wherein the above (A) effective power line curing resin comprises a copolymer of (A2) (a1) polyfunctional (meth) acrylate and (a2) polyfunctional thiol. 1: A laminate with a dry coating on one side of a film substrate; 2: Protective film; 3: Rotary drum; 4: Pressure roller; 5: A laminate on which protective film 2 is stacked and temporarily adhered on the dry coating surface of laminate 1; 6: Guide roller; 7: Grade B coating laminate; 8: Heating device; 9: Forming mold; 10: Space between Grade B coating laminate and forming mold; 11: Molded body. Figure 1 is a schematic diagram showing an example of an apparatus for stacking and temporarily adhering a protective film on the surface of a dried coating. Figure 2 is the GPC curve of component (A1-1) used in the embodiment. Figure 3 is the GPC curve of component (A2-1) used in the embodiment. Figure 4 is a schematic diagram illustrating vacuum forming. Figure 5 is a front view (a) and a plan view (b) of the forming mold used in the embodiment.

Claims

1. A method for manufacturing a Class B coating film, characterized by comprising the following steps: (1) forming a wet coating film on at least one side surface of a thin film substrate using a coating comprising (A) an effective power line curing resin and (B) a photopolymerization reaction initiator; (2) pre-drying the wet coating film formed in step (1) to form a dry coating film; and (3) subjecting the dry coating film formed in step (2) to high-pressure steam sterilization treatment, wherein the (A) effective power line curing resin comprises (A1) ethyl carbamate (meth) acrylate.

2. The method as described in claim 1, further comprising the step of stacking and temporarily affixing a protective film on the surface of the dried coating film formed in step (2) after step (2) and before step (3).

3. The method as described in claim 1, wherein the high-pressure steam sterilization process in step (3) is carried out under conditions of pressure of 0.15~1MPa and temperature of 23~100°C for 1~60 minutes.

4. The method as described in claim 1, further comprising an aging process following step (3) above.

5. The method as described in claim 1, wherein the coating further comprises (C) microparticles.

6. The method as described in claim 5, wherein the aforementioned component (C) particles comprise particles that function as an antibacterial or antiviral agent.

7. The method as described in claim 1, wherein the coating further comprises (D) a water-repellent agent.

8. The method as described in claim 1, wherein the coating does not contain a thermal polymerization initiator.

9. The method as described in any one of claims 1 to 8, wherein the (A) effective power line curing resin further comprises a copolymer of (A2) (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol.

10. The method as described in any one of claims 1 to 8, further comprising the step of transferring the coating film formed in step (3) above, which has been subjected to high-pressure steam sterilization, onto a substrate other than the film substrate.

11. The method as described in any one of claims 1 to 8, wherein the (A) effective power line curing resin comprises (A1) ethyl carbamate (meth)acrylate and (A2) a copolymer of (a1) polyfunctional (meth)acrylate and (a2) polyfunctional thiol, wherein the blending ratio of the above component (A1) to the above component (A2) (mass of the above component (A1) / mass of the above component (A2)) is 93 / 7 to 40 / 60.

12. A method for manufacturing a three-dimensional molded body, characterized by comprising the following steps: (P) obtaining a Class B coating suitable for the thin film substrate or a Class B coating transferred to a substrate other than the thin film substrate by any one of claims 1 to 11; (Q) imparting a three-dimensional shape to the Class B coating obtained in step (P) suitable for the thin film substrate or the Class B coating transferred to a substrate other than the thin film substrate; and (R) completely curing the Class B coating that has been imparted a three-dimensional shape in step (Q).

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