Plating primer composition

Abstract

To provide a primer composition for plating having enhanced ability to bond or adhere to a cycloolefin polymer.SOLUTION: The present invention discloses a primer composition for plating containing an acid-modified polyolefin resin. The primer composition for plating further contains a curing agent. The curing agent is at least one selected from the group consisting of an isocyanate compound, a carbodiimide compound, an oxazoline compound, and an epoxy compound. The primer composition for plating further contains a tackifier. The tackifier contains at least one member selected from the group consisting of a terpene phenolic compound, a dicyclopentadiene compound, a rosin compound, a coumarone resin, a styrene resin, a C5 petroleum resin, a C9 petroleum resin, and a C5 / C9 copolymerized petroleum resin. The present invention also discloses a primer composition for plating containing a styrenic resin.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a plating primer composition, and more particularly to a plating primer composition for forming a metal layer by plating on a substrate coated with a cycloolefin polymer film, which is an insulator with excellent high-frequency characteristics. [Background technology]

[0002] The technology of forming a metal layer on an insulating substrate made of an insulating material is used in the formation of electric circuits, etc. It is generally difficult to form a strong bond between such an insulating substrate and a metal layer, and methods have been proposed to roughen the surface of the insulating substrate and to apply a primer for electroless plating to the insulating substrate in order to achieve good adhesion.

[0003] In recent years, the development of fifth-generation mobile communication systems (5G) has progressed. In particular, fifth-generation mobile communication systems (5G) use high-frequency radio waves to improve the communication speeds of communication devices. As the frequency of the radio waves used increases, the amount of heat generated increases, resulting in greater transmission loss. Therefore, insulating substrates used in fifth-generation mobile communication system (5G) communication devices require materials with low dielectric constants and excellent high-frequency characteristics to reduce transmission loss and improve propagation speed. In particular, there is a strong demand for insulating substrates made of insulating materials that are less expensive than insulating substrates made of ceramic materials, are lightweight, and have low dielectric constants and excellent high-frequency characteristics, and can be used for fifth-generation mobile communication system (5G) antennas and millimeter-wave radar.

[0004] As such an insulating material, cycloolefin polymer (COP) has been attracting attention due to its excellent high frequency characteristics (Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-174898 Summary of the Invention [Problem to be solved by the invention]

[0006] However, conventional primers for electroless plating do not have good adhesiveness and adhesion to cycloolefin polymers.

[0007] The main object of this technology is to provide a plating primer composition that has excellent adhesion and bonding properties to cycloolefin polymers. [Means for solving the problem]

[0008] The present inventors have found that a plating primer composition having a specific composition has excellent adhesiveness and adhesion to cycloolefin polymers.

[0009] That is, the present technology provides a plating primer composition containing an acid-modified polyolefin resin. The plating primer composition may further contain a curing agent. The curing agent may be at least one selected from the group consisting of an isocyanate-based compound, a carbodiimide-based compound, an oxazoline-based compound, and an epoxy-based compound. The plating primer composition may further contain a tackifier. The tackifier may contain at least one compound selected from the group consisting of a terpene phenol-based compound, a dicyclopentadiene-based compound, a rosin-based compound, a coumarone resin, and a styrene resin. The tackifier may contain at least one selected from the group consisting of C5 petroleum resins, C9 petroleum resins, and C5 / C9 copolymer petroleum resins. The plating primer composition may have a total light transmittance of 90% or more after curing. The plating primer composition may have a haze of 3% or less after curing. The present technology provides a plating primer composition containing a styrene-based resin. The plating primer composition may further contain a tackifier. The tackifier may contain at least one compound selected from the group consisting of a terpene phenol-based compound, a dicyclopentadiene-based compound, a rosin-based compound, a coumarone resin, and a styrene resin. The tackifier may contain at least one selected from the group consisting of C5 petroleum resins, C9 petroleum resins, and C5 / C9 copolymer petroleum resins. The plating primer composition may have a total light transmittance of 90% or more after curing. The plating primer composition may have a haze of 3% or less after curing. The present technology provides a plating primer composition that is a blend of an acid-modified polyolefin resin and a styrene-based resin. The composition ratio of the acid-modified polyolefin resin to the styrene-based resin (acid-modified polyolefin resin / styrene-based resin) may be 90 / 10 to 10 / 90. The plating primer composition may have a total light transmittance of 90% or more after curing. The plating primer composition may have a haze of 3% or less after curing. [Effects of the Invention]

[0010] This technology makes it possible to provide a plating primer composition that has excellent adhesion and bonding properties to cycloolefin polymers. Note that the effects of the present technology are not necessarily limited to the effects described here, and may be any of the effects described in this specification. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram schematically illustrating a copper layer (electroless plating) formed on a cycloolefin polymer film by electroless plating using a plating primer composition according to the present technology. DETAILED DESCRIPTION OF THE INVENTION

[0012] Preferred embodiments for carrying out the present technology will be described below. Note that the embodiments described below are representative embodiments of the present technology, and the scope of the present technology is not limited to these embodiments.

[0013] This technology will be described in the following order. 1. Description of this technology 2. First embodiment (example of plating primer composition containing acid-modified polyolefin resin) (1) Composition of plating primer composition (2) Description of each ingredient (3) Physical properties (4) Method for producing plating primer composition (5) Use of a plating primer composition 3. Second embodiment (example of plating primer composition containing styrene-based resin) (1) Composition of plating primer composition (2) Description of each ingredient (3) Physical properties (4) Method for producing plating primer composition (5) Use of a plating primer composition 4. Third embodiment (example of a plating primer composition which is a blend of an acid-modified polyolefin resin and a styrene-based resin) (1) Composition of plating primer composition (2) Description of each ingredient (3) Physical properties (4) Method for producing plating primer composition (5) Use of a plating primer composition 5. Working Example

[0014] 1. Description of this technology

[0015] Low dielectric constant is important for circuit board materials used in communication devices for fifth-generation mobile communication systems (5G), which require high-speed communication. Cycloolefin polymers have been proposed as such low-dielectric circuit board materials. However, cycloolefin polymers have poor adhesion and bonding properties with the primer that is placed between the metal layer formed by plating and the cycloolefin polymer.

[0016] The present inventors have found that adding an acid-modified polyolefin resin to a plating primer composition improves adhesion and adhesion to cycloolefin polymers. The present technology includes an acid-modified polyolefin resin. The present technology may further include a curing agent. The curing agent may be at least one selected from the group consisting of an isocyanate-based compound, a carbodiimide-based compound, an oxazoline-based compound, and an epoxy-based compound. The present technology may further include a tackifier. The tackifier may include at least one compound selected from the group consisting of a terpene phenol-based compound, a dicyclopentadiene-based compound, a rosin-based compound, a coumarone resin, and a styrene resin. The tackifier may also include at least one selected from the group consisting of a C5 petroleum resin, a C9 petroleum resin, and a C5 / C9 copolymer petroleum resin.

[0017] The present inventors have also found that the inclusion of a styrene-based resin in a plating primer composition improves adhesion and adhesion to cycloolefin polymers. The present technology contains a styrene-based resin. The present technology may further contain a tackifier. The tackifier may contain at least one compound selected from the group consisting of a terpene phenol-based compound, a dicyclopentadiene-based compound, a rosin-based compound, a coumarone resin, and a styrene resin. The tackifier may also contain at least one selected from the group consisting of a C5 petroleum resin, a C9 petroleum resin, and a C5 / C9 copolymer petroleum resin.

[0018] In the present technology, the total light transmittance of the cured product of the plating primer composition can be preferably 90% or more, more preferably 91% or more, and even more preferably 92% or more. In the present technology, the haze of the cured product of the plating primer composition can be preferably 3% or less, more preferably 2% or less, and even more preferably 1% or less. In the present technology, the b* value of the cured product of the plating primer composition can be preferably 1.5 or less, more preferably 1.0 or less, and even more preferably 0.5 or less.

[0019] 2. First embodiment (example of plating primer composition containing acid-modified polyolefin resin)

[0020] (1) Composition of plating primer composition

[0021] The plating primer composition of this embodiment contains an acid-modified polyolefin resin. The plating primer composition of this embodiment may further contain a curing agent. The plating primer composition of this embodiment may further contain a tackifier. The plating primer composition of this embodiment may further contain a curing agent and a tackifier.

[0022] (2) Description of each ingredient

[0023] [Acid-modified polyolefin resin]

[0024] Examples of acid-modified polyolefin resins include maleic anhydride-modified polypropylene. Preferably, the acid-modified polyolefin resin is soluble in a solvent. In addition, the melting point of the acid-modified polyolefin resin is preferably 65 to 135°C, taking into consideration heat resistance and the like. Examples of commercially available products of such acid-modified polyolefin resins include the product name "Auroren (registered trademark) 350S" (manufactured by Nippon Paper Industries Co., Ltd.).

[0025] The content of the acid-modified polyolefin resin may be preferably 5% by mass or more, more preferably 15% by mass or more, and even more preferably 25% by mass or more, based on the mass of the plating primer composition. The content of the acid-modified polyolefin resin may be preferably 90% by mass or less, more preferably 80% by mass or less, even more preferably 70% by mass or less, even more preferably 60% by mass or less, and particularly preferably 55% by mass or less, based on the mass of the plating primer composition.

[0026] [Hardening agent]

[0027] The curing agent used in this embodiment has the function of crosslinking with the functional group in the acid-modified polyolefin resin. Examples of the functional group in the acid-modified polyolefin resin include a carboxyl group. By incorporating the curing agent, the crosslinking reaction with the carboxyl group proceeds, which can further improve the solvent resistance, chemical resistance, heat resistance, etc. of the adhesive layer formed from the plating primer composition, as well as the initial adhesion to cyclopolyolefin and the adhesive strength at high temperatures.

[0028] The curing agent is not particularly limited as long as it undergoes a crosslinking reaction with the functional group of the acid-modified polyolefin resin. For example, when the functional group is a carboxyl group, examples of the curing agent include isocyanate-based compounds, carbodiimide-based compounds, oxazoline-based compounds, and epoxy-based compounds, and these can be used alone or in combination of two or more.

[0029] As the isocyanate compound, a polyfunctional isocyanate compound having two or more functionalities can be used. Specific examples of the isocyanate compound include aromatic isocyanates such as tolylene diisocyanate, xylene diisocyanate, polymethylene polyphenyl diisocyanate, tris(p-isocyanatophenyl)thiophosphate, and diphenylmethane diisocyanate; alicyclic isocyanates such as isophorone diisocyanate; and aliphatic isocyanates such as hexamethylene diisocyanate. Commercially available products include isocyanate adducts such as the isocyanurate of hexamethylene diisocyanate (manufactured by Tosoh Corporation, trade name "Coronate HX"). The content of the isocyanate compound may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, based on the mass of the acid-modified polyolefin resin. The content of the isocyanate compound may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, based on the mass of the acid-modified polyolefin resin.

[0030] The carbodiimide compound may be a compound having one or more carbodiimide groups per molecule. Specific examples of the carbodiimide compound include N,N'-dicyclohexylcarbodiimide, N,N'-diisopropylcarbodiimide, and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride. Commercially available carbodiimide compounds include those under the trade name "Carbodilite V-02B" (manufactured by Nisshinbo Chemical Inc.). The content of the carbodiimide compound may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. The content of the carbodiimide compound may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0031] The oxazoline compound may be a compound having one or more oxazoline groups per molecule. Specific examples of the oxazoline compound include 2,2'-bis(2-oxazoline), 2,2'-isopropylidenebis(4-phenyl-2-oxazoline), 1,3-bis(4,5-dihydro-2-oxazolyl)benzene, and 1,4-bis(4,5-dihydro-2-oxazolyl)benzene. The oxazoline compound may preferably be an amorphous compound having an oxazoline group pendant on a polystyrene main chain. An example of a commercially available oxazoline compound is the product name "EPOCROS (registered trademark) RPS-1005" (manufactured by Nippon Shokubai Co., Ltd.). The content of the oxazoline compound may be preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more, based on the mass of the acid-modified polyolefin resin. The content of the oxazoline compound may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, based on the mass of the acid-modified polyolefin resin.

[0032] The epoxy compound may be a compound having one or more epoxy groups per molecule. Specific examples of the epoxy compound include bisphenol A, bisphenol F, and dicyclopentadiene. Commercially available epoxy compounds include an amine-type epoxy resin under the trade name "TETRAD-C" (manufactured by Mitsubishi Gas Chemical Company, Inc.). The content of the epoxy compound may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. The content of the epoxy compound may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0033] The content of the curing agent may be preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more, based on the mass of the plating primer composition, and may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, based on the mass of the plating primer composition.

[0034] [Tackifier]

[0035] The tackifier used in this embodiment has the function of imparting tackiness to the plating primer composition. By incorporating a tackifier, it is possible to improve the initial adhesion and adhesive strength to cyclopolyolefins. The tackifier may be in the form of a resin (tackifying resin), and a wide variety of tackifiers can be selected depending on the performance requirements of the plating primer composition. Examples of tackifiers include, but are not limited to, terpene phenol compounds, dicyclopentadiene compounds, rosin compounds, coumarone resins, styrene resins, C5 petroleum resins, C9 petroleum resins, and C5 / C9 copolymer petroleum resins.

[0036] The terpene phenol compound may be a compound having a terpene structure and a phenol structure. Commercially available terpene phenol compounds include those under the trade name "YS Polystar U115" (manufactured by Yasuhara Chemical Co., Ltd.). The content of the terpene phenol compound may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. The content of the terpene phenol compound may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0037] As the dicyclopentadiene compound, a compound containing a cyclopentadiene skeleton can be used. Commercially available dicyclopentadiene compounds include those under the trade name "Quinton (registered trademark) 1500" (manufactured by Zeon Corporation). The content of the dicyclopentadiene compound may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. Furthermore, the content of the dicyclopentadiene compound may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0038] As the rosin-based compound, rosin esters and the like can be used. An example of a commercially available rosin-based compound is "Pensel GA-100" (manufactured by Arakawa Chemical Industries, Ltd.). The content of the rosin-based compound may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. Furthermore, the content of the rosin-based compound may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0039] The coumarone resin may be a copolymer resin containing coumarone, indene, styrene, or the like as a main component. Commercially available coumarone resins include those sold under the trade name "Knit Resin Coumarone G-90" (manufactured by Nippon Paint Chemical Co., Ltd.). The content of the coumarone resin may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. The content of the coumarone resin may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0040] Examples of styrene resins used as tackifiers include low-molecular-weight styrene resins (Mn in the range of 1000 to 1500, Mw in the range of 2000 to 3000). Oligomers of styrene alone may also be used. Examples of such styrene resins include those available under the trade name "YS Resin SX-100" (manufactured by Yasuhara Chemical Co., Ltd.).

[0041] Examples of C5 petroleum resins that can be used include aliphatic hydrocarbon polymers obtained by polymerizing C5 fractions such as pentene, pentadiene, and isoprene obtained by thermal cracking of naphtha in the petrochemical industry using a Friedel-Crafts catalyst. Commercially available C5 petroleum resins include those under the trade name "Quinton (registered trademark) R100" (manufactured by Zeon Corporation). The content of the C5 petroleum resin may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. Furthermore, the content of the C5 petroleum resin may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0042] Examples of C9 petroleum resins include polymers obtained by polymerizing aromatic compounds having 9 carbon atoms, the main monomers of which are vinyltoluene, alkylstyrene, and indene, which are C9 fractions by-produced along with petrochemical base materials such as ethylene and propylene during the thermal decomposition of naphtha in the petrochemical industry. Commercially available C9 petroleum resins include those under the trade name "Petcol (registered trademark) LX" (manufactured by Tosoh Corporation). The content of the C9 petroleum resin may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. Furthermore, the content of the C9 petroleum resin may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0043] C5 / C9 copolymer petroleum resin refers to a C5 / C9 synthetic petroleum resin. Examples of such C5 / C9 copolymer petroleum resins include solid polymers obtained by polymerizing petroleum-derived C5-C11 fractions using a Friedel-Crafts catalyst. More specifically, examples include copolymers primarily composed of styrene, vinyltoluene, α-methylstyrene, indene, etc. Commercially available C5 / C9 copolymer petroleum resins include those under the trade name "Quinton (registered trademark) D200" (manufactured by Zeon Corporation). The content of the C5 / C9 copolymer petroleum resin may be preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, relative to the mass of the acid-modified polyolefin resin. Furthermore, the content of the C5 / C9 copolymer petroleum resin may be preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, relative to the mass of the acid-modified polyolefin resin.

[0044] In this embodiment, from the viewpoint of improving compatibility with the acid-modified polyolefin resin, the tackifier may preferably contain at least one compound selected from the group consisting of a terpene phenol compound, a dicyclopentadiene compound, a rosin compound, a coumarone resin, and a styrene resin. The tackifier may more preferably contain all of a terpene phenol compound, a dicyclopentadiene compound, a rosin compound, a coumarone resin, and a styrene resin. Furthermore, the tackifier may contain at least one selected from the group consisting of a C5 petroleum resin, a C9 petroleum resin, and a C5 / C9 copolymer petroleum resin.

[0045] In this embodiment, a solvent may be added in addition to the acid-modified polyolefin resin, curing agent, and tackifier. From the viewpoint of solubility with the acid-modified polyolefin resin, such solvents are preferably aromatic solvents such as toluene and cyclohexane, or alicyclic solvents. The content of the solvent may be preferably less than 50% solids, more preferably 40% or less solids, and even more preferably 30% or less solids.

[0046] (3) Physical properties

[0047] [Total light transmittance]

[0048] The total light transmittance of the cured product of the plating primer composition according to the present technology may be preferably 90% or more, more preferably 91% or more, and even more preferably 92% or more. A method for measuring the total light transmittance will be described below.

[0049] (Preparation of test specimens) The substrate is a cyclopolyolefin film (trade name "ZEONOR ZF14" or "ZEONOR ZF16", both manufactured by Zeon Corporation). The plating primer composition solution is applied to the substrate using a bar coater (wire bar No. 6, wire diameter 0.15 mm, mesh width 167 / IN, coating amount 6 to 7.5 WETgm). 2 Using a coating solution (manufactured by Marukyo Giken Co., Ltd.), the solution is applied to the substrate to a thickness of 1 to 2 μm. The substrate to which the plating primer composition solution has been applied is cured at 100°C for 1 minute to prepare a test piece on which the plating primer composition has hardened.

[0050] (Measurement of total light transmittance) The total light transmittance of the obtained test piece is measured using a single beam photometer (NDH7000SP II, manufactured by Nippon Denshoku Industries Co., Ltd.) in accordance with JIS K 7361-1:1997.

[0051] [Hayes]

[0052] The haze of the cured product of the plating primer composition according to the present technology may be preferably 3% or less, more preferably 2.5% or less, and even more preferably 2.0% or less. A method for measuring haze will be described below.

[0053] The haze of the test piece used in measuring the total light transmittance is measured in accordance with JIS K 7136 using a single beam photometer (NDH7000SP II, manufactured by Nippon Denshoku Industries Co., Ltd.).

[0054] [Adhesion to cyclopolyolefin polymer (COP) (normal state)]

[0055] According to JIS K 5600-5-6, a cutting tool was used to make a cross-cut on the test piece used in measuring total light transmittance. The cut portion was inspected and the adhesion was evaluated according to the following evaluation criteria. Class 5 was rated as S, Class 4 and 3 were rated as A, and the adhesion was considered to be pass. Class 2, 1 and 0 were rated as C, and the adhesion was considered to be fail.

[0056] Category 5: The edges of the cuts are completely smooth, and there is no peeling on any of the grids. The adhesion to the cyclopolyolefin polymer (COP) is very good. Category 4: Small peeling of the coating at the intersection of the cuts. The affected area of ​​the cross cuts does not clearly exceed 5%. The adhesion to the cyclopolyolefin polymer (COP) was good. Category 3: The coating has peeled along the edges of the cuts and / or at the intersections. The cross-cut area is clearly more than 5% affected but not more than 15%. The adhesion to the cyclopolyolefin polymer (COP) was very good. Category 2: The coating has partially or completely peeled off significantly along the edges of the cuts and / or partially or completely peeled off in various areas of the mesh. The cross-cut area is clearly more than 15% affected but not more than 35%. There was poor adhesion to the cyclopolyolefin polymer (COP). Category 1: The coating has partially or completely peeled off significantly along the edges of the cuts and / or partially or completely peeled off in several sections. The cross-cut area is not significantly more than 35% affected. There was poor adhesion to the cyclopolyolefin polymer (COP). Category 0: Peeling that cannot be classified as Category 1. Poor adhesion to cyclopolyolefin polymer (COP).

[0057] [COP adhesion after heat resistance test]

[0058] The test piece used in measuring the total light transmittance is left standing in an environment of 85°C for 240 hours, and then the adhesion to the cyclopolyolefin is evaluated in accordance with JIS K 5600-5-6. The evaluation criteria are the same as those described above.

[0059] [COP adhesion after humidity resistance test]

[0060] The test piece used in measuring the total light transmittance is left standing for 240 hours in an environment of 60°C and 95% RH, and then the adhesion to the cyclopolyolefin is evaluated in accordance with JIS K 5600-5-6. The evaluation criteria are the same as those described above.

[0061] [COP adhesion after chemical resistance test]

[0062] The test piece used to measure the total light transmittance was immersed in a sodium hydroxide solution (pH 13.5) at 60°C for 3 minutes, and then washed with water for 2 minutes. The adhesion to the cyclopolyolefin was then evaluated according to JIS K 5600-5-6. The evaluation criteria were the same as those described above.

[0063] [Appearance after topcoat]

[0064] The test piece used in measuring the total light transmittance was topcoated with a topcoat liquid (epoxy resin "jER (registered trademark) 1001, manufactured by Mitsubishi Chemical Corporation": 5 parts by mass, thermoplastic polyamide elastomer "TPAE-826-4S, manufactured by T&K TOKA Corporation": 15 parts by mass, methanol: 40 parts by mass, toluene: 40 parts by mass, diacetone alcohol: 190 parts by mass) to form a coating film, which was then cured at 120 ° C. for 20 minutes to prepare a test piece with a topcoat layer formed on a cyclopolyolefin film. Thereafter, the appearance of the coating film was visually observed according to JIS K 5600-3-4 and evaluated according to the following criteria.

[0065] S: No bleeding, surface defects, cracks, wrinkles or pinholes A: No bleeding, surface defects, cracks, wrinkles, or pinholes C: Surface defects

[0066] [Adhesion after topcoat]

[0067] The test specimens used in measuring total light transmittance were coated with a topcoat liquid (epoxy resin "jER (registered trademark) 1001, manufactured by Mitsubishi Chemical Corporation": 5 parts by weight, thermoplastic polyamide elastomer "TPAE-826-4S, manufactured by T&K TOKA Corporation": 15 parts by weight, methanol: 40 parts by weight, toluene: 40 parts by weight, diacetone alcohol: 190 parts by weight) to form a coating film, which was then cured at 120°C for 20 minutes to prepare test specimens with a topcoat layer formed on a cyclopolyolefin film. The adhesion to the topcoat layer was then evaluated according to JIS K 5600-5-6. The evaluation criteria were the same as those described above.

[0068] (4) Method for producing plating primer composition

[0069] The method for producing the plating primer composition of the present embodiment is not particularly limited, and the above components may be mixed as they are, or may be mixed in a state where they are dissolved or dispersed in an organic solvent or water, or a composition may be prepared in which some of the above components are dissolved or dispersed in an organic solvent or water, and the remaining components may be mixed with this composition.

[0070] (5) Use of a plating primer composition

[0071] A method for forming a metal layer on a cyclopolyolefin substrate using the plating primer composition of this embodiment is described below. An electroless plating method may be employed as a method for forming a metal layer on a cyclopolyolefin substrate using the plating primer composition of this embodiment. The electroless plating method includes, for example, a first step of applying the plating primer composition to the surface of the cyclopolyolefin substrate and heating and curing it to form a primer layer, and a second step of performing electroless plating on the primer layer formed in the first step. This allows for the formation of a plating film on the surface of the cyclopolyolefin substrate that has excellent adhesion to the substrate surface and is highly smooth.

[0072] In the first step of the electroless plating method, the plating primer composition is applied to the surface of a cyclopolyolefin substrate and heated to cure, thereby forming a primer layer.

[0073] In the first step, the plating primer composition can be applied by a conventionally known method, such as spraying, spin coating, dip coating, roll coating, etc., but is not limited to these methods.

[0074] The heating in the first step is not particularly limited as long as it is a method of exposing the primer layer to a temperature condition of, for example, 150° C. or less, and can be performed by a conventionally known method. In this way, a cured primer layer can be obtained.

[0075] Note that a step of applying a different type of plating primer composition from the plating primer composition used in step 1 may be further included between step 1 and step 2. Such a plating primer composition may be an epoxy resin containing a noble metal such as palladium or platinum.

[0076] In the second step of the electroless plating method, electroless plating is performed on the primer layer formed in the first step. In the second step, a plating metal is coated (deposited) on the cured primer layer obtained in the first step, thereby obtaining a plating film.

[0077] In the second step, the plating metal used for electroless plating is not particularly limited, but suitable examples include Ni, Co, Pd, Cu, Ag, Au, Pt, and Sn. The electroless plating solution (bath) used may be selected appropriately depending on the type of metal in the primer layer, and for example, a known electroless nickel plating bath, electroless copper plating bath, or electroless alloy plating bath may be used as is.

[0078] In the electroless plating, the cyclopolyolefin substrate on which the primer layer has been formed may be immersed in an electroless plating bath.

[0079] 1 is a schematic diagram showing a copper layer (electroless plating) formed on an insulating substrate, a cycloolefin polymer film, by electroless plating using the plating primer composition according to the present technology. As shown in Fig. 1, a plating primer composition layer 20 according to this embodiment, a palladium-containing epoxy primer composition layer 30, and a copper layer (electroless plating) 40 are formed on a cycloolefin polymer film 10.

[0080] 3. Second embodiment (example of plating primer composition containing styrene-based resin)

[0081] (1) Composition of plating primer composition

[0082] The plating primer composition of the present embodiment contains a styrene-based resin. The plating primer composition of the present embodiment may also contain a tackifier in addition to the styrene-based resin.

[0083] (2) Description of each ingredient

[0084] [Styrene-based resin]

[0085] Styrenic resins are polymers obtained by polymerizing an aromatic vinyl monomer, such as styrene, as one of the monomer components, and contain styrene units as repeating units. Examples of such styrene resins include homopolymers of aromatic vinyl monomers and copolymers containing any repeating units other than styrene units, obtained by copolymerizing an aromatic vinyl monomer as the main component with other copolymerizable monomers. Examples of other copolymerizable monomers include ethylene, propylene, butylene, isobutadiene, and the like. When copolymerizing these with an aromatic vinyl monomer, one type may be used alone, or two or more types may be used in combination. Furthermore, styrene resins may be random copolymers or block copolymers. The styrene-based resin may be one of the above-mentioned resins, or a combination of two or more thereof. The styrene-based resin may be a hydrogenated styrene-based resin obtained by partially hydrogenating the double bonds of a copolymer containing any repeating unit other than a styrene unit, or a hydrogenated styrene-based resin obtained by completely hydrogenating the double bonds.

[0086] Examples of styrene-based resins include styrene-isoprene-styrene block copolymer (SIS), styrene-ethylene-propylene-styrene block copolymer (SEPS), styrene-ethylene-ethylene-propylene-styrene block copolymer (SEEPS) or its hydrogenated product (SEEPS-OH: terminally hydroxyl-modified), and styrene-ethylene-butylene-styrene block copolymer (SEBS). In this embodiment, styrene-isoprene-styrene block copolymer (SIS), styrene-ethylene-propylene-styrene block copolymer (SEPS), and hydrogenated styrene-based resins may be preferably used. Examples of commercially available styrene-isoprene-styrene block copolymers (SIS) include those under the trade name "Quintac (registered trademark) 3280" (manufactured by Zeon Corporation). Examples of commercially available styrene-ethylene-propylene-styrene block copolymers (SEPS) include those under the trade name "Septon (registered trademark) 2004F" (manufactured by Kuraray Co., Ltd.). Examples of commercially available hydrogenated styrene-based resins include those sold under the trade name "Tuftec (registered trademark)-P" (manufactured by Asahi Kasei Corporation), those sold under the trade name "Tuftec (registered trademark)-H" (manufactured by Asahi Kasei Corporation), those sold under the trade name "SOE (registered trademark)" (manufactured by Asahi Kasei Corporation), and those sold under the trade name "Tuftec (registered trademark)-M" (manufactured by Asahi Kasei Corporation).

[0087] The content of the styrene resin may be preferably 5% by mass or more, more preferably 15% by mass or more, and even more preferably 25% by mass or more, based on the mass of the plating primer composition. The content of the styrene resin may be preferably 90% by mass or less, more preferably 80% by mass or less, even more preferably 70% by mass or less, even more preferably 60% by mass or less, and particularly preferably 55% by mass or less, based on the mass of the plating primer composition.

[0088] [Tackifier]

[0089] The description of the tackifier in the first embodiment applies to the tackifier, so the description of the tackifier will be omitted.

[0090] [solvent]

[0091] The description of the solvent in the first embodiment is applicable to the solvent, so the description of the solvent will be omitted.

[0092] (3) Physical properties

[0093] The explanation of the physical properties of the plating primer composition of the first embodiment applies to the physical properties, so the explanation of the physical properties will be omitted.

[0094] (4) Method for producing plating primer composition

[0095] The method for producing the plating primer composition is the same as that described in the first embodiment, and therefore a description of the method for producing the plating primer composition will be omitted.

[0096] (5) Use of a plating primer composition

[0097] The description of the use of the plating primer composition in the first embodiment is applicable to the use of the plating primer composition, so the description of the use of the plating primer composition will be omitted.

[0098] 4. Third embodiment (example of a plating primer composition which is a blend of an acid-modified polyolefin resin and a styrene-based resin)

[0099] (1) Composition of plating primer composition

[0100] The plating primer composition of this embodiment is a blend of an acid-modified polyolefin resin and a styrene-based resin. That is, the plating primer composition of this embodiment is a polymer blend of an acid-modified polyolefin resin and a styrene-based resin. The plating primer composition of this embodiment has improved overcoatability compared to the plating primer composition of the first embodiment.

[0101] (2) Description of each ingredient

[0102] [Acid-modified polyolefin resin]

[0103] The description of the acid-modified polyolefin resin in the first embodiment is applicable to the acid-modified polyolefin resin, so the description of the acid-modified polyolefin resin will be omitted.

[0104] [Styrene-based resin]

[0105] The description of the styrene-based resin in the second embodiment is applicable to the styrene-based resin, so the description of the styrene-based resin will be omitted.

[0106] In this embodiment, the composition ratio of the acid-modified polyolefin resin to the styrene-based resin in the plating primer composition (acid-modified polyolefin resin / styrene-based resin) is preferably 90 / 10 to 10 / 90, more preferably 80 / 20 to 20 / 80, and even more preferably 75 / 25 to 25 / 75.

[0107] [solvent]

[0108] The description of the solvent in the first embodiment is applicable to the solvent, so the description of the solvent will be omitted.

[0109] (3) Physical properties

[0110] The explanation of the physical properties of the plating primer composition of the first embodiment applies to the physical properties, so the explanation of the physical properties will be omitted.

[0111] (4) Method for producing plating primer composition

[0112] The method for producing the plating primer composition is the same as that described in the first embodiment, and therefore a description of the method for producing the plating primer composition will be omitted.

[0113] (5) Use of a plating primer composition

[0114] The description of the use of the plating primer composition in the first embodiment is applicable to the use of the plating primer composition, so the description of the use of the plating primer composition will be omitted.

[0115] The present technology can also employ the following configuration. [1] A plating primer composition containing an acid-modified polyolefin resin. [2] The plating primer composition according to [1], further comprising a curing agent. [3] The plating primer composition according to [2], wherein the curing agent is at least one selected from the group consisting of an isocyanate-based compound, a carbodiimide-based compound, an oxazoline-based compound, and an epoxy-based compound. [4] The plating primer composition according to any one of [1] to [3], further comprising a tackifier. [5] The plating primer composition according to [4], wherein the tackifier contains at least one compound selected from the group consisting of a terpene phenol compound, a dicyclopentadiene compound, a rosin compound, a coumarone resin, and a styrene resin. [6] The plating primer composition according to either [4] or [5], wherein the tackifier contains at least one selected from the group consisting of C5 petroleum resins, C9 petroleum resins, and C5 / C9 copolymer petroleum resins. [7] The plating primer composition according to any one of [1] to [6], wherein a cured product of the plating primer composition has a total light transmittance of 90% or more. [8] The plating primer composition according to any one of [1] to [7], wherein the haze of a cured product of the plating primer composition is 3% or less. [9] A plating primer composition containing a styrene-based resin.

[10] [9] The plating primer composition according to [9], further comprising a tackifier.

[11]

[10] The plating primer composition according to

[10] , wherein the tackifier contains at least one compound selected from the group consisting of a terpene phenol compound, a dicyclopentadiene compound, a rosin compound, a coumarone resin, and a styrene resin.

[12] The plating primer composition according to either

[10] or

[11] , wherein the tackifier contains at least one selected from the group consisting of C5 petroleum resins, C9 petroleum resins, and C5 / C9 copolymer petroleum resins.

[13] The plating primer composition according to any one of [9] to

[12] , wherein a cured product of the plating primer composition has a total light transmittance of 90% or more.

[14] The plating primer composition according to any one of [9] to

[13] , wherein the haze of a cured product of the plating primer composition is 3% or less.

[15] A plating primer composition which is a blend of an acid-modified polyolefin resin and a styrene-based resin.

[16] The plating primer composition according to

[15] , wherein the composition ratio of the acid-modified polyolefin resin to the styrene-based resin (acid-modified polyolefin resin / styrene-based resin) is 90 / 10 to 10 / 90.

[17] The plating primer composition according to

[15] or

[16] , wherein a cured product of the plating primer composition has a total light transmittance of 90% or more.

[18] The plating primer composition according to any one of

[15] to

[17] , wherein the haze of a cured product of the plating primer composition is 3% or less. [Example]

[0116] 5. Working Example The present invention will be described in more detail below with reference to examples. Note that the examples described below are representative examples of the present invention, and the scope of the present invention is not limited to these examples.

[0117] In the present example, the total light transmittance, haze, COP adhesion (normal state), COP adhesion after a heat resistance test, COP adhesion after a moisture resistance test, COP adhesion after a chemical resistance test, appearance after topcoating, and adhesion after topcoating were determined by the measurement methods described in the above-described embodiment.

[0118] [Example 1] A plating primer composition was prepared containing 100 parts by mass of Auroren (registered trademark) 350S (manufactured by Nippon Paper Industries Co., Ltd.) as an acid-modified polyolefin resin and 900 parts by mass of cyclohexane as a solvent. A cyclopolyolefin film (trade name "ZEONOR ZF14", manufactured by Nippon Zeon Co., Ltd.) was used as the substrate, and the plating primer composition-containing solution was applied to the substrate using a bar coater (wire bar No. #6, wire diameter 0.15 mm, mesh width 167 lines / in. width, coating amount 6 to 7.5 wetgm). 2 The plating primer composition solution was applied to the substrate using a coating solution (manufactured by Marukyo Giken Co., Ltd.) to a film thickness of 1 to 2 μm. The substrate to which the plating primer composition solution had been applied was cured at 100° C. for 1 minute to prepare a test piece.

[0119] As shown in Table 1, the total light transmittance, haze, COP adhesion (normal state), COP adhesion after heat resistance test, COP adhesion after moisture resistance test, COP adhesion after chemical resistance test, appearance after topcoating, and adhesion after topcoating were obtained.

[0120] [Example 2] This example differs from Example 1 in that a curing agent, Coronate HX (manufactured by Tosoh Corporation), was further blended in an amount of 10 mass % relative to Auroren (registered trademark) 350S, but other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0121] [Example 3] This example differs from Example 1 in that Carbodilite V-20B (manufactured by Nisshinbo Chemical Inc.) was further blended as a curing agent at 10 mass % relative to Auroren (registered trademark) 350S, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0122] [Example 4] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was further blended as a curing agent at 10 mass % relative to Auroren (registered trademark) 350S, but other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0123] [Example 5] This example differs from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was further blended as a curing agent at a concentration of 5 mass % relative to Auroren (registered trademark) 350S, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0124] [Example 6] This example differs from Example 1 in that Auroren (registered trademark) 350S and Quinton (registered trademark) 1500 (manufactured by Zeon Corporation) were blended in a composition ratio of 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) 1500), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0125] [Example 7] This example differed from Example 1 in that Coronate HX (manufactured by Tosoh Corporation) was blended at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and Auroren (registered trademark) 350S and Quinton (registered trademark) 1500 (manufactured by Zeon Corporation) were blended at a composition ratio of 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) 1500), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0126] [Example 8] This example differs from Example 1 in that Carbodilite V-20B (manufactured by Nisshinbo Chemical Inc.) was blended at 10 mass % relative to the mass of Auroren® 350S, and Auroren® 350S and Quinton® 1500 (manufactured by Zeon Corporation) were blended at a composition ratio of 80 / 20 (Auroren® 350S / Quinton® 1500), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0127] [Example 9] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was blended at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and Auroren (registered trademark) 350S and Quinton (registered trademark) 1500 (manufactured by Nippon Zeon Co., Ltd.) were blended at a composition ratio of 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) 1500), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0128] [Example 10] This example differed from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was blended at 5 mass % relative to the mass of Auroren (registered trademark) 350S, and Auroren (registered trademark) 350S and Quinton (registered trademark) 1500 (manufactured by Nippon Zeon Co., Ltd.) were blended at a composition ratio of 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) 1500), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 1.

[0129] The test results are shown in Table 1.

[0130] [Table 1]

[0131] [Example 11] This example differs from Example 1 in that the composition ratio of Auroren (registered trademark) 350S and Quinton (registered trademark) R100 (manufactured by Zeon Corporation) was 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) R100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0132] [Example 12] This example differs from Example 1 in that Coronate HX (manufactured by Tosoh Corporation) was blended at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Quinton (registered trademark) R100 (manufactured by Zeon Corporation) was 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) R100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0133] [Example 13] This example differs from Example 1 in that Carbodilite V-02B (manufactured by Nisshinbo Chemical Inc.) was added at 10 mass% relative to the mass of Auroren® 350S, and the composition ratio of Auroren® 350S to Quinton® R100 (manufactured by Zeon Corporation) was 80 / 20 (Auroren® 350S / Quinton® R100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0134] [Example 14] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was added at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Quinton (registered trademark) R100 (manufactured by Nippon Zeon Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) R100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0135] [Example 15] This example differs from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was added at 5 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Quinton (registered trademark) R100 (manufactured by Nippon Zeon Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) R100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0136] [Example 16] This example differs from Example 1 in that Auroren (registered trademark) 350S and Quinton (registered trademark) D200 (manufactured by Zeon Corporation) were mixed in a composition ratio of 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) D200), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0137] [Example 17] This example differs from Example 1 in that Coronate HX (manufactured by Tosoh Corporation) was blended at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Quinton (registered trademark) D200 (manufactured by Zeon Corporation) was 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) D200), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0138] [Example 18] This example differs from Example 1 in that Carbodilite V-02B (manufactured by Nisshinbo Chemical Inc.) was added at 10 mass% relative to the mass of Auroren® 350S, and the composition ratio of Auroren® 350S to Quinton® D200 (manufactured by Zeon Corporation) was 80 / 20 (Auroren® 350S / Quinton® D200), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0139] [Example 19] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was added at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Quinton (registered trademark) D200 (manufactured by Zeon Corporation) was 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) D200), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0140] [Example 20] This example differs from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was added at 5 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Quinton (registered trademark) D200 (manufactured by Nippon Zeon Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Quinton (registered trademark) D200), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 2.

[0141] The test results are shown in Table 2.

[0142] [Table 2]

[0143] [Example 21] This example differs from Example 1 in that the composition ratio of Auroren (registered trademark) 350S and Pencel GA-100 (manufactured by Arakawa Chemical Industries, Ltd.) (Auroren (registered trademark) 350S / Pensel GA-100) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0144] [Example 22] This example differs from Example 1 in that Coronate HX (manufactured by Tosoh Corporation) was blended at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Pencel GA-100 (manufactured by Arakawa Chemical Industries, Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Pensel GA-100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0145] [Example 23] This example differs from Example 1 in that Carbodilite V-02B (manufactured by Nisshinbo Chemical Co., Ltd.) was added at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Pencel GA-100 (manufactured by Arakawa Chemical Industries, Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Pensel GA-100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0146] [Example 24] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was blended at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Pencel GA-100 (manufactured by Arakawa Chemical Industries, Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Pensel GA-100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0147] [Example 25] This example differs from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was added at 5 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Pencel GA-100 (manufactured by Arakawa Chemical Industries, Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Pensel GA-100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0148] [Example 26] This example differs from Example 1 in that the composition ratio of Auroren (registered trademark) 350S and YS Polystar U115 (manufactured by Yasuhara Chemical Co., Ltd.) (Auroren (registered trademark) 350S / YS Polystar U115) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0149] [Example 27] This example differs from Example 1 in that Coronate HX (manufactured by Tosoh Corporation) was added at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to YS Polystar U115 (manufactured by Yasuhara Chemical Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / YS Polystar U115), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0150] [Example 28] This example differs from Example 1 in that 10% by mass of Carbodilite V-02B (manufactured by Nisshinbo Chemical Co., Ltd.) was added relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to YS Polystar U115 (manufactured by Yasuhara Chemical Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / YS Polystar U115), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0151] [Example 29] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was added at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to YS Polystar U115 (manufactured by Yasuhara Chemical Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / YS Polystar U115), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0152] [Example 30] This example differed from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was added at 5 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to YS Polystar U115 (manufactured by Yasuhara Chemical Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / YS Polystar U115), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 3.

[0153] The test results are shown in Table 3.

[0154] [Table 3]

[0155] [Example 31] This example differs from Example 1 in that the composition ratio of Auroren (registered trademark) 350S and Petcol (registered trademark) LX (manufactured by Tosoh Corporation) (Auroren (registered trademark) 350S / Petcol (registered trademark) LX) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0156] [Example 32] This example differs from Example 1 in that Coronate HX (manufactured by Tosoh Corporation) was added at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Petokol (registered trademark) LX (manufactured by Tosoh Corporation) was 80 / 20 (Auroren (registered trademark) 350S / Petokol (registered trademark) LX), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0157] [Example 33] This example differs from Example 1 in that Carbodilite V-02B (manufactured by Nisshinbo Chemical Inc.) was added at 10 mass % relative to the mass of Auroren® 350S, and the composition ratio of Auroren® 350S to Petokol® LX (manufactured by Tosoh Corporation) was 80 / 20 (Auroren® 350S / Petokol® LX), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0158] [Example 34] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was added at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Petokol (registered trademark) LX (manufactured by Tosoh Corporation) was 80 / 20 (Auroren (registered trademark) 350S / Petokol (registered trademark) LX), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0159] [Example 35] This example differs from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was added at 5 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Petokol (registered trademark) LX (manufactured by Tosoh Corporation) was 80 / 20 (Auroren (registered trademark) 350S / Petokol (registered trademark) LX), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0160] [Example 36] This example differs from Example 1 in that the composition ratio of Auroren (registered trademark) 350S and Knit Resin Coumarone G-90 (manufactured by Nippon Paint Chemical Co., Ltd.) (Auroren (registered trademark) 350S / Knit Resin Coumarone G-90) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0161] [Example 37] This example differs from Example 1 in that Coronate HX (manufactured by Tosoh Corporation) was blended at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Knit Resin Coumarone G-90 (manufactured by Nippon Paint Chemical Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Knit Resin Coumarone G-90), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0162] [Example 38] This example differs from Example 1 in that 10% by mass of Carbodilite V-02B (manufactured by Nisshinbo Chemical Co., Ltd.) was added relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Knit Resin Coumarone G-90 (manufactured by Nippon Paint Chemical Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Knit Resin Coumarone G-90), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0163] [Example 39] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was blended at 10 mass% relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Knit Resin Coumarone G-90 (manufactured by Nippon Paint Chemical Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Knit Resin Coumarone G-90), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0164] [Example 40] This example differs from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was added at 5 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to Knit Resin Coumarone G-90 (manufactured by Nippon Paint Chemical Co., Ltd.) was 80 / 20 (Auroren (registered trademark) 350S / Knit Resin Coumarone G-90), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 4.

[0165] The test results are shown in Table 4.

[0166] [Table 4]

[0167] [Example 41] This example differs from Example 1 in that Septon (registered trademark) 2004F (manufactured by Kuraray Co., Ltd.) was blended as a styrene-based resin (SEPS) instead of the acid-modified polyolefin, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 5.

[0168] [Example 42] This example differed from Example 1 in that the composition ratio of Septon (registered trademark) 2004F and Quinton (registered trademark) 1500 (manufactured by Zeon Corporation) was 80 / 20 (Septon (registered trademark) 2004F / Quinton (registered trademark) 1500), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 5.

[0169] [Example 43] This example differs from Example 1 in that the composition ratio of Septon (registered trademark) 2004F and Quinton (registered trademark) R100 (manufactured by Zeon Corporation) was 80 / 20 (Septon (registered trademark) 2004F / Quinton (registered trademark) R100), but the other conditions and methods were the same as those of Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 5.

[0170] [Example 44] This example differs from Example 1 in that the composition ratio of Septon (registered trademark) 2004F and Quinton (registered trademark) D200 (manufactured by Zeon Corporation) was 80 / 20 (Septon (registered trademark) 2004F / Quinton (registered trademark) D200), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 5.

[0171] [Example 45] This example differed from Example 1 in that the composition ratio of Septon (registered trademark) 2004F and Pencel GA-100 (manufactured by Arakawa Chemical Industries, Ltd.) (Septon (registered trademark) 2004F / Pensel GA-100) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 5.

[0172] [Example 46] This example differs from Example 1 in that Septon (registered trademark) 2004F and YS Polystar U115 (manufactured by Yasuhara Chemical Co., Ltd.) were mixed in a composition ratio of 80 / 20 (Septon (registered trademark) 2004F / YS Polystar U115), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 5.

[0173] [Example 47] This example differed from Example 1 in that the composition ratio of Septon (registered trademark) 2004F and Petcol (registered trademark) LX (manufactured by Tosoh Corporation) (Septon (registered trademark) 2004F / Petcol (registered trademark) LX) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 5.

[0174] [Example 48] This example differs from Example 1 in that the composition ratio of Septon (registered trademark) 2004F and Nitto Resin Coumarone G-90 (manufactured by Nippon Paint Chemical Co., Ltd.) (Septon (registered trademark) 2004F / Nitto Resin Coumarone G-90) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 5.

[0175] The test results are shown in Table 5.

[0176] [Table 5]

[0177] [Example 49] This example differs from Example 1 in that Quintac (registered trademark) 3280 (manufactured by Zeon Corporation) was blended as a styrene-based resin (SIS) instead of the acid-modified polyolefin, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 6.

[0178] [Example 50] This example differed from Example 1 in that Quintac (registered trademark) 3280 and Quinton (registered trademark) 1500 (manufactured by Zeon Corporation) were mixed in a composition ratio of 80 / 20 (Quintac (registered trademark) 3280 / Quinton (registered trademark) 1500), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 6.

[0179] [Example 51] This example differs from Example 1 in that Quintac (registered trademark) 3280 and Quinton (registered trademark) R100 (manufactured by Zeon Corporation) were blended in a composition ratio of 80 / 20 (Quintac (registered trademark) 3280 / Quinton (registered trademark) R100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 6.

[0180] [Example 52] This example differs from Example 1 in that Quintac (registered trademark) 3280 and Quinton (registered trademark) D200 (manufactured by Zeon Corporation) were blended in a composition ratio of 80 / 20 (Quintac (registered trademark) 3280 / Quinton (registered trademark) D200), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 6.

[0181] [Example 53] This example differs from Example 1 in that Quintac (registered trademark) 3280 and Pencel GA-100 (manufactured by Arakawa Chemical Industries, Ltd.) were blended in a composition ratio of 80 / 20 (Quintac (registered trademark) 3280 / Pensel GA-100), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 6.

[0182] [Example 54] This example differs from Example 1 in that Quintac (registered trademark) 3280 and YS Polystar U115 (manufactured by Yasuhara Chemical Co., Ltd.) were mixed in a composition ratio of 80 / 20 (Quintac (registered trademark) 3280 / YS Polystar U115), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 6.

[0183] [Example 55] This example differs from Example 1 in that Quintac (registered trademark) 3280 and Petcol (registered trademark) LX (manufactured by Tosoh Corporation) were blended in a composition ratio of 80 / 20 (Quintac (registered trademark) 3280 / Petcol (registered trademark) LX), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 6.

[0184] [Example 56] This example differs from Example 1 in that Quintac (registered trademark) 3280 and Nitto Resin Coumarone G-90 (manufactured by Nippon Paint Chemical Co., Ltd.) were mixed in a composition ratio of 80 / 20 (Quintac (registered trademark) 3280 / Nitto Resin Coumarone G-90), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 6.

[0185] The test results are shown in Table 6.

[0186] [Table 6]

[0187] [Example 57] This example differs from Example 1 in that the composition ratio of Auroren (registered trademark) 350S and YS Resin SX-100 (manufactured by Yasuhara Chemical Co., Ltd.) (Auroren (registered trademark) 350S / YS Resin SX-100) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 7.

[0188] [Example 58] This example differs from Example 1 in that Coronate HX (manufactured by Tosoh Corporation) was blended at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to YS Resin SX-100 (manufactured by Yasuhara Chemical Co., Ltd.) was blended at an 80 / 20 ratio (Auroren (registered trademark) 350S / YS Resin SX-100). However, the other conditions and methods were the same as in Example 1, and a plating primer composition was obtained. The composition and physical properties of the obtained plating primer composition were as shown in Table 7.

[0189] [Example 59] This example differed from Example 1 in that Carbodilite V-20B (manufactured by Nisshinbo Chemical Inc.) was blended at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and Auroren (registered trademark) 350S and YS Resin SX-100 (manufactured by Yasuhara Chemical Co., Ltd.) were blended at a composition ratio of 80 / 20 (Auroren (registered trademark) 350S / YS Resin SX-100). However, the other conditions and methods were the same as in Example 1, and a plating primer composition was obtained. The composition and physical properties of the obtained plating primer composition were as shown in Table 7.

[0190] [Example 60] This example differs from Example 1 in that TETRAD-C (manufactured by Mitsubishi Gas Chemical Company, Inc.) was blended at 10 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to YS Resin SX-100 (manufactured by Yasuhara Chemical Co., Ltd.) was blended at an 80 / 20 ratio (Auroren (registered trademark) 350S / YS Resin SX-100). However, the other conditions and methods were the same as in Example 1, and a plating primer composition was obtained. The composition and physical properties of the obtained plating primer composition were as shown in Table 7.

[0191] [Example 61] This example differs from Example 1 in that Epocross (registered trademark) RPS-1005 (manufactured by Nippon Shokubai Co., Ltd.) was blended at 5 mass % relative to the mass of Auroren (registered trademark) 350S, and the composition ratio of Auroren (registered trademark) 350S to YS Resin SX-100 (manufactured by Yasuhara Chemical Co., Ltd.) was blended at an 80 / 20 ratio (Auroren (registered trademark) 350S / YS Resin SX-100). However, the other conditions and methods were the same as in Example 1, and a plating primer composition was obtained. The composition and physical properties of the obtained plating primer composition were as shown in Table 7.

[0192] [Example 62] This example differs from Example 1 in that the composition ratio of Septon (registered trademark) 2004F and YS Resin SX-100 (manufactured by Yasuhara Chemical Co., Ltd.) was 80 / 20, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The constitution and physical properties of the obtained plating primer composition were as shown in Table 7.

[0193] [Example 63] This example differs from Example 1 in that the composition ratio of Quintac (registered trademark) 3280 and YS Resin SX-100 (manufactured by Yasuhara Chemical Co., Ltd.) was 80 / 20 (Quintac (registered trademark) 3280 / YS Resin SX-100). However, the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 7.

[0194] The test results are shown in Table 7.

[0195] [Table 7]

[0196] [Example 64] This example differs from Example 1 in that Auroren (registered trademark) 350S and Septon (registered trademark) 2004F were blended at a composition ratio of 90 / 10 (Auroren (registered trademark) 350S / Septon (registered trademark) 2004F), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0197] [Example 65] This example differs from Example 1 in that Auroren (registered trademark) 350S and Septon (registered trademark) 2004F were blended at a composition ratio of 75 / 25 (Auroren (registered trademark) 350S / Septon (registered trademark) 2004F), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0198] [Example 66] This example differs from Example 1 in that Auroren (registered trademark) 350S and Septon (registered trademark) 2004F were blended at a composition ratio of 50 / 50 (Auroren (registered trademark) 350S / Septon (registered trademark) 2004F), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0199] [Example 67] This example differs from Example 1 in that Auroren (registered trademark) 350S and Septon (registered trademark) 2004F were blended at a composition ratio of 25 / 75 (Auroren (registered trademark) 350S / Septon (registered trademark) 2004F), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0200] [Example 68] This example differs from Example 1 in that Auroren (registered trademark) 350S and Septon (registered trademark) 2004F were blended at a composition ratio of 10 / 90 (Auroren (registered trademark) 350S / Septon (registered trademark) 2004F), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0201] [Example 69] This example differs from Example 1 in that Auroren® 350S and Quintac® 3280 were blended at a composition ratio of 90 / 10 (Auroren® 350S / Quintac® 3280), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0202] [Example 70] This example differs from Example 1 in that Auroren® 350S and Quintac® 3280 were blended at a composition ratio of 75 / 25 (Auroren® 350S / Quintac® 3280), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0203] [Example 71] This example differs from Example 1 in that Auroren® 350S and Quintac® 3280 were blended at a composition ratio of 50 / 50 (Auroren® 350S / Quintac® 3280), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0204] [Example 72] This example differs from Example 1 in that Auroren® 350S and Quintac® 3280 were blended at a composition ratio of 25 / 75 (Auroren® 350S / Quintac® 3280), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0205] [Example 73] This example differs from Example 1 in that Auroren® 350S and Quintac® 3280 were blended at a composition ratio of 10 / 90 (Auroren® 350S / Quintac® 3280), but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0206] [Comparative Example 1] This example differs from Example 1 in that a urethane resin was used in which an acrylic polyol (trade name "XK-9012", manufactured by Toshin Yushi Co., Ltd.) and an isocyanate (trade name "Coronate HX", manufactured by Tosoh Corporation) were reacted so that NCO / OH = 1.0, instead of Auroren (registered trademark) 350S, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0207] Comparative Example 2 This example differs from Example 1 in that instead of Auroren (registered trademark) 350S, an epoxy resin obtained by reacting 100 parts by mass of a hydrogenated epoxy resin (trade name "YX8000", manufactured by Mitsubishi Chemical Corporation), 67 parts by mass of a curing agent (trade name "Karenz MT PE1", manufactured by Showa Denko K.K.), and 2 parts by mass of a curing catalyst (trade name "Hishicolin PX-4ET", manufactured by Nippon Chemical Industry Co., Ltd.) was used. However, the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0208] Comparative Example 3 This example differs from Example 1 in that a UV-curable acrylic resin obtained by reacting 100 parts by mass of a UV-curable urethane acrylate oligomer (trade name "UV-7600B", manufactured by Mitsubishi Chemical Corporation) with 3 parts by mass of a photopolymerization initiator (trade name "Omnirad 184", manufactured by IGM Resins BV) was used instead of Auroren (registered trademark) 350S, but the other conditions and methods were the same as in Example 1 to obtain a plating primer composition. The composition and physical properties of the obtained plating primer composition were as shown in Table 8.

[0209] The test results are shown in Table 8.

[0210] [Table 8]

[0211] From Tables 1 to 8, the following can be seen:

[0212] All of the plating primer compositions of Examples 1 to 40 contained an acid-modified polyolefin resin. Therefore, all of the plating primer compositions of Examples 1 to 40 were excellent in total light transmittance, haze, COP adhesion (normal state), COP adhesion after a heat resistance test, COP adhesion after a moisture resistance test, COP adhesion after a chemical resistance test, appearance after topcoating, and adhesion after topcoating. In Examples 2 to 40, the appearance after topcoating was even better than in Example 1, and all properties were extremely excellent. It can be seen that in Examples 2 to 40, the appearance after topcoating was improved by blending a curing agent and a tackifier.

[0213] All of the plating primer compositions of Examples 41 to 56 contained a styrene-based resin. Therefore, all of the plating primer compositions of Examples 41 to 56 were excellent in total light transmittance, haze, COP adhesion (normal state), COP adhesion after a heat resistance test, COP adhesion after a moisture resistance test, COP adhesion after a chemical resistance test, appearance after topcoating, and adhesion after topcoating. In Examples 42 to 48, the adhesion after the moisture resistance test was even better than in Example 41. It can be seen that in Examples 42 to 48, the addition of a tackifier improves the adhesion after the moisture resistance test.

[0214] In Examples 50 to 56, the adhesion after the chemical resistance test was even better than in Example 49. It can be seen that in Examples 50 to 56, the adhesion after the chemical resistance test was improved by blending a tackifier.

[0215] Examples 58 to 61 had smaller haze values ​​and improved transparency than Example 57. In Examples 62 to 63, by blending a styrene resin as a tackifier, the total light transmittance, haze, COP adhesion (normal state), COP adhesion after a heat resistance test, COP adhesion after a moisture resistance test, COP adhesion after a chemical resistance test, appearance after topcoating, and adhesion after topcoating were excellent.

[0216] The plating primer compositions of Examples 64 to 73 all contained an acid-modified polyolefin resin and a styrene-based resin. As a result, the plating primer compositions of Examples 64 to 73 all had extremely excellent total light transmittance, haze, COP adhesion (normal), COP adhesion after a heat resistance test, COP adhesion after a moisture resistance test, COP adhesion after a chemical resistance test, appearance after topcoating, and adhesion after topcoating.

[0217] It can be seen that Comparative Example 1, which uses a urethane resin without using an acid-modified polyolefin resin or a styrene-based resin, Comparative Example 2, which uses an epoxy resin, and Comparative Example 3, which uses a UV-curable acrylic resin, are inferior in COP adhesion (normal state), COP adhesion after a heat resistance test, COP adhesion after a moisture resistance test, COP adhesion after a chemical resistance test, and adhesion after topcoating.

[0218] Although the embodiments and examples of the present technology have been specifically described above, the present technology is not limited to the above-described embodiments and examples, and various modifications based on the technical ideas of the present technology are possible.

[0219] For example, the configurations, methods, processes, shapes, materials, and numerical values, etc., given in the above-described embodiments and examples are merely examples, and different configurations, methods, processes, shapes, materials, and numerical values, etc., may be used as necessary.

[0220] Furthermore, the configurations, methods, processes, shapes, materials, numerical values, and the like of the above-described embodiments and examples can be combined with each other without departing from the spirit of the present technology.

[0221] Furthermore, in this specification, a numerical range indicated using "to" indicates a range that includes the numerical values ​​before and after "to" as the minimum and maximum values, respectively. In numerical ranges described in stages in this specification, the upper or lower limit of a numerical range in one stage may be replaced with the upper or lower limit of a numerical range in another stage. Unless otherwise specified, the materials exemplified in this specification can be used alone or in combination of two or more types. [Explanation of symbols]

[0222] 10 Cycloolefin polymer film 20 Plating primer composition layer 30 Palladium-containing epoxy primer composition layer 40 copper layers

Claims

1. Contains acid-modified polyolefin resin and tackifier, the tackifier contains at least one selected from the group consisting of dicyclopentadiene compounds, coumarone resins, styrene resins, C5 petroleum resins, C9 petroleum resins, and C5 / C9 copolymer petroleum resins; A plating primer composition, wherein the content of the tackifier is 50 mass % or less relative to the mass of the acid-modified polyolefin resin.

2. The plating primer composition according to claim 1, further comprising a curing agent.

3. 3. The plating primer composition according to claim 2, wherein the curing agent is at least one selected from the group consisting of an isocyanate-based compound, a carbodiimide-based compound, an oxazoline-based compound, and an epoxy-based compound.

4. 2. The plating primer composition according to claim 1, wherein a cured product of the plating primer composition has a total light transmittance of 90% or more in a film thickness of 1 to 2 μm.

5. 2. The plating primer composition according to claim 1, wherein a haze of a cured product of the plating primer composition in a film thickness of 1 to 2 μm is 2.0% or less.

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