KR101290415B1 - Resin composition with excellent energy curing property, method of manufacturing the resin composition and surface protection sheet using the resin composition - Google Patents

Abstract

The resin composition excellent in the energy hardening characteristic, its manufacturing method, and the surface protection sheet using the same are disclosed.
The resin composition according to the present invention comprises a silica dispersion solution (A) comprising a surface treated silica with an acryloyloxy functional group and a solvent and a UV curable resin (B) having a (meth) acryloyloxy functional group. Characterized in that.

Description

RESIN COMPOSITION WITH EXCELLENT ENERGY CURING PROPERTY, METHOD OF MANUFACTURING THE RESIN COMPOSITION AND SURFACE PROTECTION SHEET USING THE RESIN COMPOSITION}

The present invention relates to a surface protection technology of a molded article, and more particularly, to a resin composition having excellent energy curing characteristics such as electron beam curing, ultraviolet curing, and the like, a method of manufacturing the same, and a surface protection sheet using the same.

In the case of various molded articles, such as a resin molded article, in order to provide characteristics, such as scratch resistance and chemical resistance, to a surface, a surface protective layer is formed. The surface protection layer uses the surface protection sheet which coated the resin composition which has surface protection function.

In the case of the conventional surface protection sheet, there is a problem in that the surface of the molded article is deformed or cloudy in the injection molding process for attaching the sheet to the molded article.

An object of the present invention is to provide a resin composition which is excellent in energy curing characteristics and which can prevent the problem that the surface of the molded article is deformed or cloudy in the injection molding process.

Another object of the present invention is to provide a method for producing the above resin composition using nano silica sol.

Still another object of the present invention is to provide a surface protective sheet of a molded article using the above resin composition.

A resin composition according to an embodiment of the present invention for achieving the above object is a silica dispersion solution (A) and (meth) acryloyloxy including a solvent and silica surface-treated with an acryloyloxy functional group It is characterized by including UV curable resin (B) which has a functional group.

Resin composition manufacturing method according to an embodiment of the present invention for achieving the above another object is condensation reaction of silica having a [OH] functional group and acryloyloxy alkyl silane, the silica surface-treated with acryloyloxy functional group Preparing a silica dispersion solution (A); Providing a UV curable resin (B) having a (meth) acryloyloxy functional group; And mixing the silica dispersion solution (A) with the UV curable resin (B).

Surface protection sheet according to an embodiment of the present invention for achieving the above another object is a base film; And a silica dispersion solution (A) and a (meth) acryloyloxy functional group formed on one surface of the base film and comprising a silica and a solvent surface-treated with an acryloyloxy functional group (B) It characterized in that it comprises a; coating layer containing a heat cured product of the composition comprising a).

The surface protection sheet which concerns on this invention is excellent energy by using the resin composition containing the UV curable resin which has a (meth) acryloyloxy functional group, and the silica dispersion solution which the silica surface-treated with the acryloyloxy functional group disperse | distributed. Has curing properties.

In addition, the surface protection sheet according to the present invention can prevent the surface deformation of the molded article or the occurrence of turbidity in the injection molding process by using the silica surface-treated with acryloyloxy functional group.

In addition, in the present invention, heat curing before molding, UV curing after molding is possible, and since the coating layer is not completely cured when the surface protection sheet according to the present invention is attached to the molded article, the coating layer may be peeled off from the curved part of the molded article, Cracks and the like can be prevented from occurring in the coating layer.

1 schematically shows a surface protection sheet according to an embodiment of the present invention.
Figure 2 schematically shows a surface protection sheet according to another embodiment of the present invention, it shows a surface protection sheet of the release type.
Figure 3 schematically shows a surface protection sheet according to another embodiment of the present invention, shows a non-release type surface protection sheet.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described hereinafter. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Hereinafter, a resin composition having excellent energy curing properties, a method of manufacturing the same, and a surface protective sheet using the same according to the present invention will be described in detail.

The resin composition according to the present invention comprises a silica dispersion solution (A) and a UV curable resin (B).

Silica Dispersion Solution (A)

In the present invention, the silica dispersion solution is a silica surface-treated with an acryloyloxy functional dispersed in a solvent.

Silica surface-treated with an acryloyloxy functional group gives a functional group capable of participating in energy irradiation curing even in the presence of oxygen as compared to silica surface-treated with an acryloyloxy functional group. Therefore, the functional groups imparted in the UV-curable resin chain can be reduced, so that tacky generated after coating can be removed, and the amount of thermosetting agent can be reduced by increasing the glass transition temperature of the UV-curable resin, thereby improving curved formability during injection processing. You can.

Methyl ethyl ketone (MEK) can be used as a solvent. In addition to the solvent, methyl alcohol, ethyl alcohol, isopropyl alcohol, acetone, ethyl acetate, methyl isobutyl ketone, butyl acetate, ethylene glycol monomethyl ether acetate, and propylene glycol monomethyl ether acetate may be used alone or in combination of two or more thereof. have.

Silica surface-treated with the acryloyloxy functional group is preferably included in an amount of 10 to 100 parts by weight based on 100 parts by weight of the UV curable resin. If the silica surface-treated with the acryloyloxy functional group is added in less than 10 parts by weight relative to 100 parts by weight of the UV curable resin, the content of the silica surface-treated with the acryloyloxy functional group is relatively low, resulting in poor workability during injection molding. After injection, foreign substances may be contaminated around the molding, and heat resistance may deteriorate to cause wrinkles in the injection molding. On the contrary, when the silica dispersion solution exceeds 100 parts by weight with respect to 100 parts by weight of the UV curable resin, the film may be broken during injection molding due to excessive use of silica, thereby contaminating the injection mold.

UV Curable Resin (B)

In the present invention, the UV curable resin (B) has a (meth) acryloyloxy functional group. The UV curable resin having a (meth) acryloyloxy functional group allows the resin composition according to the present invention to be cured by UV or electron beam. UV curing or electron beam curing in the present invention can be seen that the curing reaction by the reaction of the (meth) acryloyloxy functional group contained in the resin during UV irradiation or electron beam irradiation.

The UV curable resin preferably has a (meth) acryloyloxy equivalent weight of 300 to 500 g / eq. When the (meth) acryloyloxy equivalent of the UV-curable resin falls within the above range, the energy curing efficiency such as UV is excellent, the adhesiveness is appropriately suppressed after thermal curing, and the chemical resistance, the wear resistance after UV curing, etc. are excellent. Do.

In addition, the UV curable resin is preferably a glass transition temperature (Tg) of 60 ℃ or more, more preferably 70 ~ 100 ℃ can be presented. If the glass transition temperature of the UV-curable resin is less than 60 ℃, when the film coating processing more than a predetermined amount of winding occurs the interlayer blocking phenomenon by the film weight. In addition, to improve this, it is necessary to increase the amount of the thermosetting agent, in which case it may adversely affect the workability and formability.

UV-curable resin having a (meth) acryloyloxy functional group that satisfies the above conditions is produced a (meth) acrylate copolymer having an epoxy functional group, and then a (meth) acrylic acid monomer to the produced (meth) acrylate copolymer. It can be prepared by addition reaction.

Etc

The resin composition according to the present invention may further include at least one of a UV initiator, an antioxidant, a polyfunctional acrylic monomer, and a thermosetting agent to improve physical properties.

UV initiator UV initiator may use a compound such as benzophenone, hydroxy ketone, amino ketone, phosphine oxide, phenyl ketone and the like.

The UV initiator is preferably included in 1 to 15 parts by weight based on 100 parts by weight of the UV curable resin. When the content of the UV initiator is less than 1 part by weight based on 100 parts by weight of the UV curable resin, the curing reaction may not be performed well or the UV curing time may be too long. In addition, when the content of the UV initiator exceeds 15 parts by weight with respect to 100 parts by weight of the UV curable resin, there is a problem that causes odor or human harmful components remain on the surface due to the remaining components after curing.

Antioxidant can use a phenolic antioxidant, phosphorus antioxidant, chelate antioxidant, etc.

Such antioxidants are preferably included in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the UV curable resin. When the content of the antioxidant is less than 0.1 parts by weight relative to 100 parts by weight of the UV curable resin, yellowing phenomenon is likely to occur in the surface protective coating layer. In addition, when the content of the antioxidant exceeds 2 parts by weight relative to 100 parts by weight of the UV curable resin, the antioxidant effect is saturated, while other physical properties required in the surface protective coating may be lowered.

In addition, the resin composition according to the present invention may further include a polyfunctional acrylic monomer for improving energy curing properties. Polyfunctional acrylic monomers include pentaerythritol tri (tetra) acrylate (PETIA), dipentaerythritol hexahacrylate (DPHA), trimethylolpropanetriacrylate (TMPTA) (2-hydroxyethyl acrylate (2- HEA), 1,6-hexanediol diacrylate, and the like.

Such a polyfunctional acrylic monomer is preferably included in an amount of 1 to 30 parts by weight based on 100 parts by weight of the UV curable resin. When the content of the polyfunctional acrylic monomer is added in less than 1 part by weight with respect to 100 parts by weight of the UV curable resin, it is difficult to exhibit sufficient effect. On the contrary, when the content of the polyfunctional acrylic monomer exceeds 30 parts by weight relative to 100 parts by weight of the UV curable resin, blocking occurs when the film is wound.

In addition, the resin composition according to the present invention may further include a thermal curing agent for the primary thermal curing is carried out before UV curing. Such a thermal curing agent may use an isocyanate compound such as blocked isocyanate.

The isocyanate compound serves to thermally cure the composition before or after application of the composition in preparing the surface protective sheet. In the present invention, the thermal curing can be seen that the -OH group and the -NCO group of the isocyanate compound included in the UV curable resin to cause the curing reaction by heat.

The content of such a thermosetting agent is preferably included in 1 to 5 parts by weight based on 100 parts by weight of the UV curable resin. When the content of the thermal curing agent is less than 1 part by weight relative to 100 parts by weight of the UV curable resin, the thermal curing may not sufficiently occur. This becomes a factor which reduces the handleability of a surface protection sheet. In addition, when the content of the isocyanate compound exceeds 5 parts by weight relative to 100 parts by weight of the UV curable resin, excessive heat curing may occur, thereby deteriorating curved formability during injection processing.

In addition, the resin composition according to the present invention may further include additives such as a lubricant, an ultraviolet absorber, a leveling agent, and a leveling agent, as necessary.

On the other hand, the resin composition according to the present invention can be prepared through the same process as the examples shown below.

First, the silica dispersion solution (A) surface-treated with the acryloyloxy functional group is provided.

The said silica dispersion solution (A) can be obtained by condensation reaction of the silica which has a [OH] functional group, and acryloyloxy alkyl silane.

More specifically, the silica dispersion solution (A) is 20 to 40 hours at a temperature of 40 ~ 60 ℃ after mixing a silica sol (sil) containing a silica having a [OH] functional group, acryloyloxy alkyl silane and a catalyst It can be prepared through the process of condensation reaction.

In the silica sol, silica having a [OH] functional group is dispersed in a solvent such as methyl ethyl ketone (MEK) described above. At this time, it is preferable that the silica sol contains 30 to 60% by weight of silica having a [OH] functional group in terms of viscosity. If the content of silica in the sol is less than 30% by weight, the yield of the reaction is lowered. If the content of the silica is more than 60% by weight, the viscosity is excessively increased during the further reaction, which is likely to gel.

In addition, the silica contained in the silica sol preferably has an average particle diameter of 50 nm or less. If the average particle diameter of silica exceeds 50 nm, the gloss is poor during coating.

The acryloyloxy alkyl silane may use acryloyloxy propyl trimethoxy silane. The trimethoxy silane functional group of the acryloyloxy propyl trimethoxy silane reacts with the —OH group on the silica surface.

On the other hand, in place of acryloyloxy alkyl silane, methacryloyloxy alkyl silane may be considered. However, when the methacryloyloxy alkyl silane was used, the experimental results showed that the surface hardness was slightly lower than that of the acryloyloxy alkyl silane and intermediate clouding occurred. This is because the photocuring reactivity of the methacryloyloxy functional group is relatively lower than that of the acryloyloxy functional group. Treated methacryloyloxy functional groups are difficult to participate in the photocuring reaction.

The acryloyloxy alkyl silane is preferably used in an amount of 10 to 20 parts by weight based on 100 parts by weight of the silica sol. When the amount of the acryloyloxy alkyl silane is less than 10 parts by weight relative to 100 parts by weight of the silica sol, only a part of the silica is surface-treated with an acryloyloxy functional group, and the effect is insufficient. On the contrary, when the amount of the acryloyloxy alkyl silane exceeds 20 parts by weight with respect to 100 parts by weight of the silica sol, the unreacted acryloyloxy alkyl silane becomes excessive to impair the stability of the sol.

In order to promote the condensation reaction, water (H ₂ O) and nitric acid (HNO ₃ ) can be further added as a catalyst.

The water in the catalyst is preferably used the same ratio as the alkylsilane equivalent value of the acryloyloxy alkyl silane used. If it is less than the alkylsilane equivalent, the yield of the reaction decreases, and in many cases, the stability of the sol is impaired.

The nitric acid in the catalyst is preferably used in an amount of 1 to 10 parts by weight based on 100 parts by weight of the silica sol. When the content of the catalyst is less than 1 part by weight based on 100 parts by weight of the silica sol, the reaction time may be very long. On the contrary, when the content of the catalyst exceeds 10 parts by weight relative to 100 parts by weight of the silica sol, solution stability may be lowered due to excessive use of the catalyst.

Moreover, in order to manufacture a resin composition, UV curable resin (B) which has a (meth) acryloyloxy functional group is provided.

UV-curable resins having a (meth) acryloyloxy functional group are prepared by preparing a (meth) acrylate copolymer having an epoxy functional group and then adding a (meth) acrylic acid monomer to the prepared (meth) acrylate copolymer. can do.

In this case, the (meth) acrylate copolymer having an epoxy functional group may be prepared by copolymerization of methyl (meth) acrylate and glycidyl (meth) acrylate. The copolymerization of methyl (meth) acrylate and glycidyl (meth) acrylate can be carried out by various methods such as solution polymerization, photopolymerization and bulk polymerization.

At this time, the content of glycidyl (meth) acrylate is preferably 50 mol% or less, more preferably 20 to 50mol% can be presented. When the content of glycidyl (meth) acrylate exceeds 50 mol%, it is difficult to secure the glass transition temperature of the resin above 60 ° C, which is easy to cause blocking during the film coating process, and if the content of the curing agent is increased to prevent the blocking phenomenon, Film formability worsens.

The resin composition according to the present invention may be prepared by mixing the silica dispersion solution (A) and the UV curable resin (B). In this case, additives such as a UV initiator and a thermosetting agent may be further included, and a solvent such as methyl ethyl ketone (MEK) may be added to adjust viscosity or improve dispersibility.

1 schematically shows a surface protection sheet according to an embodiment of the present invention.

Referring to FIG. 1, the illustrated surface protection sheet is a sheet capable of forming a surface protection coating on a molded article surface, and includes a base film 110 and a coating layer 120.

The base film 110 is made of polypropylene resin, polyethylene resin, polyamide resin, polyester resin, polyacrylic resin, polyvinyl chloride resin, acrylic resin, polycarbonate resin, vinyl chloride resin, urethane One formed of a material such as resin may be used, but is not limited thereto, and one formed of various materials may be used.

The coating layer 120 contains the thermosetting of the resin composition according to the present invention. The thermosetting of the resin composition may be formed by treating the resin composition at a temperature of about 50 to 170 ° C. for about 30 seconds to 2 minutes. The thermosetting material of the coating layer 120 formed on one surface of the base film 110 suppresses the adhesiveness to easily form a printing layer, a deposition layer, and the like on the surface protection sheet, and improves sheet handling.

The coating layer 120 may be formed to have a thickness of approximately 3 to 8 μm.

Figure 2 schematically shows a surface protection sheet according to another embodiment of the present invention, it shows a surface protection sheet of the release type.

Referring to FIG. 2, the surface protection sheet shown includes a base film 110, a coating layer 120, a release layer 115, and an adhesive layer 130.

The coating layer 120 is formed on one surface of the base film 110 and contains a thermoset of the resin composition according to the present invention.

The release layer 115 is formed between the base film 110 and the coating layer 120, and is formed for release of the base film 110 after the surface protection sheet is attached to the molded article.

To form the release layer 115, a release agent such as epoxy, epoxy-melamine, aminoalkyd, acrylic, melamine, silicone, fluorine, cellulose, urea resin, polyolefin, or paraffin may be used.

The release layer 115 may be formed to a thickness of about 1㎛ or less.

The adhesive layer 130 is formed on the coating layer 120 so that the surface protection sheet is attached to the molded article. To form the adhesive layer 130, a polyacrylic resin, a polystyrene resin, a polyamide resin, a chlorinated polyolefin resin, a chlorinated ethylene-vinyl acetate copolymer resin, a rubber resin, or the like may be used.

In order to protect the adhesive layer 130, a protective film (not shown) may be attached onto the adhesive layer 130.

Meanwhile, at least one layer of the printed layer and the deposited layer may be further formed between the release layer 115 and the coating layer 120 or between the coating layer 120 and the adhesive layer 130 to impart a decoration effect. Such a print layer, a deposition layer, etc. may be formed of one layer or two or more layers, respectively. In addition, in order to facilitate formation of a printed layer, a primer layer may be further formed before forming a printed layer or the like. In addition, the deposition layer may be formed by vacuum deposition or sputtering.

Figure 3 schematically shows a surface protection sheet according to another embodiment of the present invention, shows a non-release type surface protection sheet.

Referring to FIG. 3, the surface protection sheet shown includes a base film 110, a coating layer 120, and an adhesive layer 130.

The coating layer 120 is formed on one surface of the base film 110 and contains a thermoset of the resin composition according to the present invention.

Unlike the example illustrated in FIG. 2, the adhesive layer 130 is formed on the other surface opposite to the surface on which the coating layer 120 is formed in the base film 110, so that the surface protection sheet is attached to the molded article.

In the case of the embodiment illustrated in FIG. 3, a printing layer or a deposition layer may be further formed to impart a decoration effect or the like. In the present embodiment, one or more layers of a printing layer and a deposition layer may be further formed between the base film 110 and the adhesive layer 130 or between the base film 110 and the coating layer 120.

When attaching the surface protective sheet having the structure shown in FIG. 2 or FIG. 3 to the molded article and performing energy curing, the surface protective coating on the molded article surface is a (meth) acryloyloxy functional group contained in the resin composition according to the present invention. According to the curing of the UV-curable resin having a provides scratch resistance, chemical resistance, wear resistance, high surface hardness and the like.

Example

Hereinafter, the characteristics of the surface protection sheet excellent in the anti-blocking characteristics according to the present invention through a preferred embodiment of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.

Details that are not described herein will be omitted since those skilled in the art can sufficiently infer technically.

1.Manufacture of surface protective sheet

Example 1

(1) Nano Silica Dispersion Solution Preparation

15 parts by weight of acryloyloxypropyl trimethoxy silane (KB5103 Shin-Etsu Corp.) in 100 parts by weight of silica sol (MA-ST Nissan Chemical) in which silica (40% by weight) having [OH] functional group is dispersed in methanol, and water Silica dispersion solution (A) was prepared by reacting 1 part by weight and 3 parts by weight of nitric acid catalyst at 50 ° C. for 30 hours.

(2) UV curable resin production

A methacrylate copolymer was prepared by copolymerizing 45 mol% of glycidyl methacrylate (GMA) and 55 mol% of methyl methacrylate (MMA). Thereafter, an acrylic acid (AA) monomer was added and reacted to the prepared methacrylate copolymer to prepare a UV curable resin having an acryloyloxy equivalent weight of 400 g / eq and a glass transition temperature of 65 ° C.

(3) Preparation of Resin Composition

80 parts by weight of the nano silica dispersion solution (A), 10 parts by weight of the UV initiator (Irg 184), 1 part by weight of the antioxidant (irganox B 900), and a polyfunctional acrylic monomer based on 100 parts by weight of the UV curable resin (B) prepared. (DPHA) 15 weight part and 3 weight part of block isocyanates were mixed as a thermosetting agent, and the resin composition was produced.

(4) In-mold transfer film manufacturing

Thereafter, a melamine-based mold release agent was coated on one surface of the PET film having a thickness of 38 μm to a thickness of about 1 μm by a gravure coating method to form a release layer. Subsequently, the resin composition prepared on the release layer was applied to a thickness of about 6 μm by the microgravure coating method. Thereafter, the applied coating liquid was heated at 150 ° C. for 30 seconds to form a coating layer containing a thermoset of the resin composition to prepare a surface protective sheet.

Thereafter, a 3 μm thick print layer was formed by gravure coating, and then an in-mold transfer film was prepared by forming an adhesive layer having a thickness of 1.5 μm.

(5) Preparation of injection sample

The in-mold transfer film prepared above was mounted on an in-mold injection mold for 10-inch notebooks, followed by injection molding with PC / ABS resin, and then the injection molded product was passed through a 1000 mJ UV curing zone to produce an injection sample for evaluation of final properties. It was.

Example 2

An injection sample was prepared in the same manner as in Example 1 except that 30 parts by weight of 80 parts by weight of the silica dispersion solution (A) of Example 1 was replaced with a UV curable resin (B).

Comparative Example 1

Injection was carried out in the same manner as in Example 1 except that 60 parts by weight of the UV curable resin (B) and 10 parts by weight of the heat curing agent were used instead of 80 parts by weight of the silica dispersion solution (A) and 10 parts by weight of silica. Samples were made.

Comparative Example 2

An injection sample was prepared in the same manner as in Example 1 except that 80 parts by weight of the silica dispersion solution (B) was used instead of 80 parts by weight of the silica dispersion solution (A) of Example 1.

The silica dispersion solution (B) is a methacryloyloxy propyl trimethoxy silane (KB503) in 100 parts by weight of silica sol (MA-ST Nissan Chemical) in which silica (40% by weight) having a [OH] functional group is dispersed in methanol. Shin-Etsu Corp.) 1 part by weight of water and 3 parts by weight of nitric acid catalyst were prepared by reacting at 50 ° C. for 30 hours.

2. Property evaluation

(1) surface hardness evaluation

Surface hardness was measured by pencil hardness in the state of 1Kg load using a connection hardness tester.

Table 1 shows the pencil hardness of the injection sample surface prepared according to Examples 1-2 and Comparative Examples 1-2.

[Table 1]

Referring to Table 1, it can be seen that the pencil hardness of Example 1 and Example 2 using silica surface-treated with acryloyloxy functional group is very high compared to Comparative Examples 1,2.

 (2) clouding phenomenon evaluation

UV-cured injection sample surfaces were observed according to Examples 1 and 2 and Comparative Examples 1 and 2 visually for the evaluation of cloudiness, and the results are shown in Table 2.

[Table 2]

Referring to Table 2, in the case of Examples 1 to 2 did not occur cloudy, but in Comparative Examples 1 to 2 it could be seen that the turbidity occurred in the middle.

That is, in Examples 1 and 2 to which silica surface-treated with an acryloyloxy functional group were applied, the surface hardness was excellent, and no turbidity occurred. However, in Comparative Example 1 in which silica was not surface-treated with an acryloyloxy functional group, and in Comparative Example 2 in which silica was surface-treated with a methacryloyloxy functional group, the surface was compared with those of Examples 1 and 2. The hardness was relatively low and cloudiness occurred in the middle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. . Accordingly, the true scope of the present invention should be determined by the following claims.

110: base film 115: release layer
120: coating layer 130: adhesive layer

Claims (16)

delete delete delete delete delete delete After mixing a silica sol containing 30 to 60% by weight of silica having an [OH] functional group, an acryloyloxy alkyl silane and a catalyst, condensation reaction is performed at a temperature of 40 to 60 ° C. for 20 to 40 hours. Preparing a silica dispersion solution (A) in which silica is surface-treated with an acryloyloxy functional group;
Providing a UV curable resin (B) having a (meth) acryloyloxy functional group; And
Mixing the silica dispersion solution (A) and the UV curable resin (B); a resin composition production method comprising a.
delete The method of claim 7, wherein
The acryloyloxy alkyl silane is
A method for producing a resin composition characterized by using acryloyloxypropyl trimethoxy silane.
The method of claim 7, wherein
The UV curable resin (B) is
A method of producing a resin composition, comprising: copolymerizing methyl (meth) acrylate and glycidyl (meth) acrylate to form a (meth) acrylate copolymer and reacting the addition of the (meth) acrylic acid monomer. .
The method of claim 10,
In the copolymerization process of the methyl (meth) acrylate and glycidyl (meth) acrylate, the content of the glycidyl (meth) acrylate is a method of producing a resin composition, characterized in that 50mol% or less.
delete delete delete delete delete

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