KR20120045014A - Method for improving weathering property of resinous member for solar light power generation, and resin-property improver for use therein - Google Patents

Abstract

The present invention is a method for improving the outdoor exposure properties of a resin member used in a solar power module, comprising a combination of one or two or more functional agents selected from ultraviolet absorbers, light stabilizers, antioxidants as a physical property improving agent used. It is a method of improving the physical properties of a resin member, using one kind or two or more kinds of polymers and adding them internally in the resin material or applying or pasting the surface of the resin material. According to the present invention, the resin member used in the photovoltaic module is exposed to water, steam, acidic water, alkaline water, or the like caused by ultraviolet rays, heat, rainwater, rivers, and groundwater. In addition, it is possible to provide a method of sustaining the resin physical properties in the long term.

Description

METHOD FOR IMPROVING WEATHERING PROPERTY OF RESINOUS MEMBER FOR SOLAR LIGHT POWER GENERATION, AND RESIN-PROPERTY IMPROVER FOR USE THEREIN}

This application claims the priority of Japanese Patent Application No. 2009-177350 for which it applied on July 30, 2009, The specification of this Japanese application becomes a part of this indication by reference.

The present invention relates to a method for improving physical properties of a resin member for photovoltaic generation and a resin physical property improving agent used therein. More specifically, a method for improving the physical properties of a resin member used in a photovoltaic module using a polymer comprising a functional agent selected from an ultraviolet absorber, a light stabilizer, and an antioxidant (hereinafter sometimes referred to as a "polymer binding functional agent"). The present invention relates to a resin physical property improving agent, a solid resin composition or a liquid composition, and a resin member article and a solar power generation module having improved physical properties.

Modern society is increasing dependence on electric power as an energy source. Looking at the dependence on electric power, for example, the use of electrical appliances and information equipment in conventional homes and places of civic life, power sources in public facilities, commercial facilities and all industrial fields in the city, electronic devices for information transmission In the transportation system, not only the transportation system for mass transportation such as trams and trains, but also the power source of the automobile for personal use has been attempted as a fully electric vehicle from the plug-in hybrid system.

These sources of power are clean from the dependence of conventional fossil fuels such as coal, petroleum, and natural gas on thermal and nuclear power generation, from environmental problems and safety, especially from the sense of global warming due to carbon dioxide emissions. The demand for energy is increasing. In addition to conventional hydroelectric power generation, there are wind power generation and geothermal power generation, but as a clean energy, a solar power module can be installed from a small device to a large facility, and the installation place is not limited, and it is easy to install on the roof of a general house or office Interest has been greatly gained from the aspects of safety and safety. States and municipalities are also promoting the introduction and spreading rapidly. In addition, with the development of secondary batteries, in addition to direct use of electricity and sales of electricity in photovoltaic modules, power storage in homes is also possible, leading to increased introduction.

Photovoltaic power generation converts solar energy directly into electrical energy by an energy conversion element such as a silicon cell semiconductor. When the energy conversion element is directly exposed to the external environment, its function is lowered and further deterioration proceeds. Therefore, the energy conversion element is covered with a protective film sandwiched by an adhesive resin layer called an encapsulant. Examples of the sealing material sheet include ethylene-vinyl acetate copolymers, ethylene-acrylate copolymers, carboxylic acid copolymers thereof, ionomers, and buty, from adhesiveness, transparency, strength, impact resistance, and chemical resistance. Butyral resin etc. are used. As the resin material used for these sealing materials, the resin material excellent in durability is selected, but since the use period is extended over a very long time, coloring and discoloration may occur as it is, and a crack sometimes arises from the fall of resin physical property. Therefore, improvement of weather resistance was calculated | required.

As one for improving the physical properties of the resin material, an improvement method in which an ultraviolet absorber, a light stabilizer, a thermal antioxidant, and an organic peroxide is blended in the encapsulant resin layer is proposed (Patent Document 1: Japanese Patent Application Laid-Open No. 9-116182). number). Moreover, it is also proposed to mix | blend a benzotriazole type, a triazine type ultraviolet absorber, a hindered amine type light stabilizer, and a hindered phenol type antioxidant to an ethylene (meth) acrylic acid copolymer or its ionomer ( Patent document 2: Unexamined-Japanese-Patent No. 2001-261904). It is also proposed to mix | blend a white inorganic pigment, a crosslinking agent, and triallyl cyanurate with an ethylene polar monomer copolymer, and also mix | blend the additive chosen from a ultraviolet absorber, a light stabilizer, and antioxidant (patent document). 3: JP-A 2006-36874). Moreover, it is also proposed to mix cerium oxide as an ultraviolet absorber and to use a benzophenone series ultraviolet absorber as an ultraviolet absorber (patent document 4: Unexamined-Japanese-Patent No. 2006-186233).

Moreover, the polymer binding functional agent which combined functional agents, such as an ultraviolet absorber, a light stabilizer, and antioxidant, with the polymer chain is also known (patent document 5: Unexamined-Japanese-Patent No. 2001-19711, patent document 6: Unexamined-Japanese-Patent No. 2003-). 253248, Patent Document 7: Japanese Unexamined Patent Publication No. 2005-054183). However, there is no disclosure in these documents that these polymer bonding functional agents are used in combination with the resin member used in the photovoltaic module.

Japanese Patent Application Laid-Open No. 9-116182 Japanese Laid-Open Patent Publication 2001-261904 Japanese Laid-Open Patent Publication 2006-36874 Japanese Laid-Open Patent Publication No. 2006-186233 Japanese Laid-Open Patent Publication 2001-19711 Japanese Unexamined Patent Publication No. 2003-253248 Japanese Laid-Open Patent Publication 2005-054183

However, additives such as ultraviolet absorbers, light stabilizers, and antioxidants are often insufficient for solubility and compatibility in resin materials, particularly polyolefin resin materials. Moreover, when the addition amount was large, a bleed out was caused to surface gradually during use period, and the fall of transparency appeared. Moreover, since these are low molecular weight compounds, they may be volatilized when they are added to the resin material and subjected to heat-kneading, and the effect decreases when the actual content decreases. At the same time, this volatilization caused a loss of material, and furthermore, it had a fear of causing contamination to a molding machine or contamination to a working environment. In addition, elution of these compounds into warm water, acidic or alkaline water, elution into solvents, oils, and the like has been feared. In particular, the amine light stabilizer had a concern of deterioration of performance and elution due to acid rain or the like. As described above, the additive is difficult to obtain sufficient stability required for long-term use, and repeated improvement and development of the functional agent have been required.

MEANS TO SOLVE THE PROBLEM The present inventors can solve the above-mentioned various subjects by applying the polymeric material integrated by combining the above various physical property improvement additive to a polymer to the resin member used for a photovoltaic module. It has been found and the present invention has been completed.

Therefore, an object of this invention is to provide the resin physical property improving agent which improves the outdoor exposure physical property of the resin member used for a photovoltaic module.

In addition, an object of the present invention is to provide a method for improving outdoor exposure physical properties of a resin member used in a photovoltaic module.

In addition, an object of the present invention is to provide a master batch comprising a resin physical property improving agent for improving outdoor exposure physical properties of the resin member used in the above-described photovoltaic module.

In addition, an object of the present invention is to provide a liquid composition for use as a coating agent or coating material comprising a resin physical property improving agent for improving the outdoor exposure physical properties of the resin member used in the above photovoltaic module.

Moreover, this invention provides the use for improving the outdoor exposure physical property of the resin member used for the photovoltaic module of the polymeric material integrated by combining various physical property improvement additives with the polymer.

In addition, the resin property improving agent for improving the outdoor exposure properties of the resin member used in the photovoltaic module according to the present invention includes one or two or more functional agents selected from ultraviolet absorbers, light stabilizers, and antioxidants. It is characterized by including the 1 type (s) or 2 or more types of the polymer coupling function couple | bonded.

Moreover, the method of improving the outdoor exposure physical property of the resin member used for the photovoltaic module by this invention adds the resin physical property improver which concerns on the said invention to the resin member used for a photovoltaic module, or said It is a method characterized by including applying or sticking to the surface of a resin material.

In addition, in the master batch according to the present invention, the resin property improving agent according to the present invention is mixed with the same resin as the resin member or a synthetic resin and / or resin wax having compatibility therewith, and kneaded to form a sheet or pellet. It is characterized by being molded in the shape of.

Moreover, the liquid composition used as a coating agent or coating material by this invention is characterized by disperse | distributing or melt | dissolving in the liquid medium with the film formation material as needed, the said resin physical property improving agent.

According to this invention, favorable durability can be provided to the resin material used for the member of a photovoltaic module. Since the functional components of the ultraviolet absorber, the hindered amine light stabilizer, and the hindered phenolic antioxidant are chemically bound to the polymer, they may cause loss or environmental pollution due to sublimation even during heat processing. It is possible to obtain an effect that the effect can be effectively maintained for a long time without eluting from rain water, environment water, oil, solvent or the like. Moreover, by selecting a polymer having compatibility with the resin material used for the member of the photovoltaic module and having good compatibility, it is possible to stably add a large amount of functional ingredient component to the resin material. do. In addition, the resin physical property improving agent according to the present invention is also advantageous in that it is easy to add and use plural kinds of them in the resin material at the same time, and can improve various physical properties of the resin at the same time.

<Resin member used for photovoltaic module>

As a resin member used for the photovoltaic module to which the resin property improving agent which concerns on this invention is applicable, the resin member of sealing material resin, surface coating resin, and an adhesive agent is mentioned.

The basic configuration of the photovoltaic panel is to sandwich the top and bottom of the photovoltaic cell material (solar cell) in the resin layer of the encapsulant, attach a glass plate to the encapsulation resin layer on the outside that receives sunlight, and the number of encapsulations on the back and side surfaces. The film of surface coating resin (back sheet) is stuck to a strata layer.

The encapsulant resin is required to have properties such as being excellent in long-term adhesion to glass, solar cells, and back sheets, flexible, excellent in encapsulation of solar cells, high solar light transmittance, and excellent transparency. In addition, reactivity such as durability such as heat resistance, high temperature resistance, water resistance and moisture resistance, weather resistance, and reverse crosslinkability is required.

Examples of the encapsulant resin having these properties include polyolefin polymers, polyether polymers, polyester polymers, polyamide polymers, polyvinyl polymers, polysilicon polymers, and polyurethane polymers. Especially, a polyolefin polymer is preferable, Ethylene-type copolymer resin has the said performance especially, and it is preferable as sealing material resin. For example, an ethylene vinyl acetate copolymer, an ethylene unsaturated alkyl carboxylic acid (C1-8) ester copolymer, an ethylene unsaturated unsaturated carboxylic acid copolymer, an ethylene unsaturated unsaturated carboxylic acid alkyl (C1-8) ester, an unsaturated carboxylic acid copolymer And their ionomers and the like, and specifically, ethylene and vinyl acetate copolymers; ethylene and methyl (meth) acrylate copolymers and ethylene and (ethyl) methacrylate copolymers; and ethylene and methyl (meth) acrylate? Ethylene-unsaturated carboxylic acid copolymers such as acrylic acid copolymers, ethylene-ethyl (meth) acrylate and (meth) acrylic acid copolymers and their ionomers, and polyvinyl butyral resins, urethane resins, silicone resins, fluorine resins, and the like. desirable.

Moreover, surface coating resin, ie, a back sheet, is a resin film which coat | covers the back surface or the side surface side, and is directly exposed to the external environment in an installation place. Therefore, in addition to mechanical strength, electrical insulation, chemical resistance, and the like, environmental resistance such as heat resistance, water resistance, moisture resistance, and salt resistance is very important. As the resin, known fluorine resin, polyolefin resin, polyvinyl resin, poly (meth) acrylic resin, polyether resin, polyester resin, polyamide resin, polycarbonate resin, polysilicon resin, etc. Can be mentioned. In particular, polyester resin, fluorine resin, and cyclic polyolefin resin are preferable.

Examples of the polyester resins include polyester films such as polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polytrimethylene naphthalate and polybutylene naphthalate, and the like. Aluminum foil laminated polyester film, the metal vapor deposition, the silica vapor deposition polyester film, etc. are also used.

The physical property improving agent which concerns on this invention can be added also to the adhesive agent used for a photovoltaic module.

As an adhesive agent, the adhesive agent used by a well-known lamination system or a melting system is used preferably. As a lamination adhesive agent, a dry lamination adhesive agent, a wet lamination adhesive agent, a non-solvent lamination adhesive agent, a hot melt adhesive agent etc. are mentioned according to the form of the adhesive agent. As a resin component of these adhesive agents, acrylic resins, such as ethylene copolymer resins, such as ethylene vinyl acetate resin, ethylene acrylic acid ester resin, and ethylene methacrylic acid ester resin, acrylic acid ester resin, and methacrylic acid ester resin, are nitrile, for example. Rubber-based resins such as rubber, chloroprene rubber, styrene-butadiene rubber and styrene-isoprene rubber, hydrogenated resins of these rubber-based resins, polyester resins, polyurethane resins, polyamide resins, polyamide-imide resins, polyimide resins, Adhesives, such as a silicone resin, are mentioned. In addition, a reactive adhesive or a self-crosslinking type in which a reactor such as an epoxy group, an isocyanate group, a masked isocyanate group, an alkoxymethyl group, a carboxyimide group, a hydroxyl group, or a carboxyl group is introduced into the polymer chain of the resin component of the adhesive described above. And adhesives. Furthermore, the crosslinkable adhesive agent which used well-known crosslinking agents, such as an epoxy crosslinking agent, an isocyanate type crosslinking agent, and the alkoxy methyl melamine type crosslinking agent, is mentioned to the said reactive adhesive or the self-crosslinking adhesive. Furthermore, the polymerizable adhesive agent containing polymerizable oligomers, such as a heat-polymerizable adhesive agent, an ultraviolet curable adhesive agent, and an electron beam curable adhesive agent, and a polyfunctional polymerizable monomer is mentioned.

Moreover, as a resin component of a melt-extrusion adhesive, For example, copolymer resin of polyethylene resin, ethylene, acrylic acid, methacrylic acid, those metal salts, vinyl acetate, acrylic acid ester, methacrylic acid ester, etc., Known thermoplastic resins, such as a polypropylene resin and an acid-modified polypropylene resin, etc. are mentioned.

<Polymer binding agent>

In this invention, what couple | bonded 1 type (s) or 2 or more types of functional agents chosen from a ultraviolet absorber, a light stabilizer, and antioxidant with the polymer is called a polymer binding functional agent.

In the present invention, the functional agent constituting the polymer-binding functional agent is selected from ultraviolet absorbers, light stabilizers, and antioxidants. As a ultraviolet absorber, a benzotriazole type, a hydroxyphenyl triazine type, a benzophenone type, a benzoate type, a salicylate type, and a cyanoacrylate type ultraviolet absorber are mentioned. Moreover, a hindered amine light stabilizer is mentioned as a light stabilizer. Moreover, a hindered phenol type and a phosphite type antioxidant can be mentioned as antioxidant.

These functional agents may be used individually or in combination of 1 type, or more, and it is also preferable to mix and use the thing from which a function differs. This is because multi-faceted physical properties such as encapsulant resin can be improved. The use of such a combination may use what combined several functional agents in the same polymer molecule, or may combine and use the polymer which combined each functional agent, and may combine the both methods.

In the present invention, the polymer constituting the polymer-bonding functional agent is preferably selected in consideration of the type of resin member used in the photovoltaic module to be improved, and in particular the resin member used in the photovoltaic module and The choice of compatible polymers is preferred. Preferred polymers include polymer chains such as polyolefin polymers, poly (meth) acrylic ester polymers, polyvinyl polymers, polyether polymers, polyester polymers, polyamide polymers, polysilicon polymers or polyurethane polymers. Can be.

As for the ethylene-based copolymer most used as the encapsulant resin of the photovoltaic module, as the polymer chain, an ethylene-vinyl alcohol copolymer having a hydroxyl group as a reactive group, an ethylene-vinyl alcohol-vinyl acetate copolymer, vinyl alcohol-vinyl Butyral copolymer; Ethylene? (Meth) acrylic acid copolymer, ethylene? (Meth) acrylic acid (carbon number: 1 to 8) having an induction group of carboxylic acid such as carboxyl group, acid anhydride group, acid halogenide group, lower alkyl ester group, etc. ) Ester? (Meth) acrylic acid copolymer, their acid halogenide derivatives, ethylene? Maleic anhydride copolymer, ethylene? (Meth) acrylic acid lower alkyl (carbon number: 1-4) ester copolymer; glycidyl group or chlorohydrin Ethylene? (Meth) acrylic acid glycidyl ester copolymer having a group, ethylene? (Meth) acrylic acid alkyl (carbon number: 1-8) ester? (Meth) acrylic acid And a risidyl ester copolymer. The polymer obtained by reacting one or more polymers selected therefrom is preferably used.

Also in the case of the back sheet resin, it is preferable to use the same type of polymer chain as the resin, but it is preferable in terms of physical properties and the like, and specific examples thereof include a fluorine polymer, a polyolefin polymer, a polyvinyl polymer, and a poly ( Meta) acrylic polymers, polyether polymers, polyester polymers, polyamide polymers, polycarbonate polymers, polysilicon polymers, and the like.

In particular, when the back sheet resin is a polyester resin film, ethylene glycol, trimethylene glycol or butylene glycol is used as the diol, and as dicarboxylic acid, dicarboxylic acids such as terephthalic acid and naphthalenedicarboxylic acid, and their methyl esters and diglycol esters It is preferable to make polyester chain using derivatives, such as halogenide.

The bonding method of a polymer and a functional agent, Preferably, it is formed by reaction with the reactive group and polymer which were introduce | transduced into the functional residue.

The polymer binding functional agent used in the present invention may be produced according to a known method, and for example, JP 2001-19711, JP 2003-253248, JP 2005-054183 and the like. It can manufacture according to the method described.

The functional moiety, which is a chemical structure exhibiting various functionalities, has various reactive groups capable of binding to the polymer, or is formed by introduction thereof, and binds to the polymer through the reactive groups.

As a functional residue of the specific compound of a benzotriazole type ultraviolet absorber, it is [(3-alkyl (0-4) -4-hydroxy-5- (2H-benzotriazol-2-yl) -phenyl, for example). ] Residue, [(3-alkyl (0-4 carbon) -4-hydroxy-5- (2H-benzotriazol-2-yl) -phenyl] residue, [(2-alkyl (0-4 carbon)- 3-hydroxy-4- (2H-benzotriazol-2-yl) -phenyl-oxy] residue, [(2-alkyl (0-4) -3-hydroxy-4- (5-chloro-2H And benzotriazole-based ultraviolet absorber residues such as -benzotriazol-2-yl) -phenyl-oxy] residue.

As a reactive group introduce | transduced into the said ultraviolet absorber residue, -alkylene (C1-C6) carboxylic acid, its lower alkyl (C1-C6) ester, acid halogenide, hydroxyalkyl (C1-C10) ester, ( 2-hydroxy-3-alkyl (1-20 carbon) oxypropyl ester, (2-hydroxy-3-phenyl-oxypropyl ester; -alkylene (1-6 carbon) alcohol,-(2-hydroxy- 3-alkyloxy (carbon number: 1-20) propane, (2-hydroxy-3-phenyloxy) propane, (2-hydroxy-3-alkylcarbonyloxy (carbon number 1-20) propane) are mentioned, Furthermore, the bifunctional inducer obtained by making these and these polyfunctional compounds, such as a tricarboxylic anhydride, a tetracarboxylic anhydride, a tricarboxylic anhydride, a monohalogenide, glycidol, and a diepoxy compound, etc. can be mentioned. Branch has one or two or more reactors selected from the above in consideration of the reactive group, and one to two By introducing the features of claim residues, it is used for bonding to the polymer.

Moreover, as a functional residue of a triazine type ultraviolet absorber, 4- (4,6-bis (alkyl (C0-4) phenyl-1,3,5-triazin-2-yl)-(3-hydroxy) -Phenyl-oxy] residue, 4- (4,6-bis (diphenyl-1,3,5-triazin-2-yl)-(3-hydroxy) -phenyl-oxy] residue, and the like. As a reactive group, -alkylene (C1-C6) carboxylic acid, lower alkyl (C1-C6) ester, acid halogenide, hydroxyalkyl (C1-C10) ester, (2- Hydroxy-3-alkyl (1-20 carbon) oxypropyl ester, (2-hydroxy-3-phenyl-oxypropyl ester; -alkylene (1-6 carbon) alcohol,-(2-hydroxy-3- Alkoxyoxy (C1-C20) propane, (2-hydroxy-3-phenyloxy) propane, (2-hydroxy-3- alkylcarbonyloxy (C1-C20) propane, These are mentioned, Moreover, these are mentioned. And, tricarboxylic acid anhydride-monocarboxylic acid, tetracarboxylic anhydride, tricarboxylic acid anhydride-monohalogenide, glyc And a bifunctional induction group obtained by reacting a cidol, a diepoxy compound, etc. The reactive group is selected from one or two or more reactors in consideration of the reactive group of the polymer as described above, and functions from one to two or more. It is introduced into the first moiety and used for binding to the polymer.

As having a reactive group of the hindered amine light stabilizer, for example, 4-hydroxy-2,2,6,6-tetramethyl-4-piperidine, 4-hydroxy-1,2,2, 6,6-pentamethyl-4-piperidine, 1-octyloxy-4-hydroxy-2,2,6,6-tetramethyl-4-piperidine, 2,4-bis [N-butyl- N- (1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl) amino] -6- (2-hydroxyethylamine) -1,3,5-triazine Etc. can be mentioned. One or more reactive hindered amine light stabilizers may be combined with the polymer.

As having a reactive group of the hindered phenol-type antioxidant, for example, 3- (3 ', 5'-di-t-butyl-4'-hydroxyphenyl) propionic acid ethyl ester, 3- (3-t- Butyl-5-methyl-4-hydroxyphenyl) propionic acid ethyl ester, 3,5-di-t-butyl-4-hydroxy benzoic acid ethyl ester, etc. are mentioned. One or more reactive hindered phenolic antioxidants may be combined with the polymer.

When the polymer is a polyester resin film, as a functional agent to bind to them, a bifunctional derivative is used to be introduced into the main chain of the polymer chain, and a monofunctional reactor is introduced to bind to the side chain or the terminal of the polymer. desirable.

As a preferable introduction | transduction method of a functional agent into the polymer, the method of making into a bifunctional compound which made two reactivity to a functional agent, adds this functional agent at the time of superposition | polymerization of polyester, and performs a cocondensation reaction together is mentioned. Can be. As a functional agent, in addition to the functional agent which introduce | transduced two hydroxyl groups and a carboxyl group in the molecule | numerator mentioned above, the functional agent which has one hydroxyl group is contained butane tetracarboxylic anhydride, trimellitic anhydride, a pyromellitic dianhydride, and a trimellitic anhydride. By reacting with a monochloride or the like, a bifunctional functional agent having two carboxyl groups and a functional agent having one carboxyl group are reacted with a glycidol or a diepoxy compound to form a bifunctional functional agent having two hydroxyl groups. Can be preferably used.

<Master batch liquid composition>

The resin physical property improving agent according to the present invention may be used in the form of a polymer to which a functional agent is bound. Preferably, in order to facilitate the use, the polymer to which the functional agent is bound is compatible with a resin member which is intended to improve physical properties or the same. It is preferable to mix and mix with synthetic resin and / or resin wax which have the form, and to make it into the shape of the master batch shape | molded in the shape of a sheet form or pellets, for example.

According to a preferred embodiment of the present invention, the content of the polymer-bonding functional agent in the master batch may be appropriately determined in consideration of the required performance, the type and combination of the functional agent used, the type of the resin member to be applied, and the like. A polymer binding functional agent containing 5 to 95% by mass of the residue, preferably 10 to 60% by mass, may be used alone or in combination, so that the content ratio of the synthetic resin or wax as the dispersion medium and the functional agent portion in the master batch is 2? It is preferable to set it as the range of 30 mass%.

Although the addition amount to the resin member used for the photovoltaic module of a masterbatch may be suitably determined in consideration of the required performance, the kind and combination of functional agents used, the kind of resin member applied, etc., generally, resin A master batch is added so that the sum total of the functional agent component contained in 100 mass parts of members may be a ratio of 2-30 mass parts.

Moreover, according to another aspect of the present invention, the resin physical property improving agent according to the present invention is preferably a liquid composition obtained by dispersing or dissolving a polymer-bonding functional agent in a suitable liquid medium, and using it as a coating material or coating agent. The addition amount of the polymer-bonding functional agent in the liquid composition may be appropriately determined in consideration of the required performance, the kind and combination of the functional agent used, the kind of the resin member to be applied, and the like. It becomes the density | concentration which a functional part part contains 2-30 mass% of 95 mass% containing polymer coupling functional agents. A coating film forming material may be added to the liquid composition by this aspect as needed.

Specific examples of the liquid medium of the liquid composition according to the present invention include ester solvents such as ethyl acetate and butyl acetate, ketone solvents such as methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone, cyclohexane, methylcyclohexane and xylene Known solvents, such as hydrocarbon solvents, such as propylene glycol monomethyl ether, propylene glycol monoethyl ether, glycol ether solvents, such as propylene glycol monomethyl ether acetate, and alcohol solvents, such as isopropanol and butanol, are mentioned.

Moreover, as a specific example of the coating film forming material added as needed to the liquid composition by this invention, copolymerization with comonomers, such as ethylene and vinyl acetate, an acrylic acid ester, methacrylic acid ester, acrylic acid, methacrylic acid, for example Acrylic resins, such as resin, acrylic acid ester resin, and methacrylic acid ester resin, polyester resin, polyurethane resin, etc. Moreover, epoxy group, isocyanate group, masked isocyanate group, alkoxy methyl group, carbodiimide group, hydroxyl group to said resin And reactive resin to self-crosslinked resin in which a reactor such as a carboxyl group or the like is introduced. Furthermore, well-known coating film formation materials, such as crosslinkable resin, which used together well-known crosslinking agents, such as an epoxy type crosslinking agent, an isocyanate type crosslinking agent, and an alkoxy methyl melamine type crosslinking agent, are mentioned to the said reactive resin or self crosslinking type resin.

In the present invention, the polymer binding functional agent may be used as it is, or as a master batch or liquid composition containing the same, for improving physical properties of the resin material used in the photovoltaic module, and the amount of the functional agent at that time may be appropriately determined. According to one preferred aspect of the present invention, the amount of the functional ingredient is 0.5 to 15 parts by mass, the amount of the UV absorber to the resin material, 0.5 to 20 parts by mass of the light stabilizer, and 0.1 to 20 parts by mass of the antioxidant. It is preferable to be. According to a preferred aspect of the present invention, the functional agents are preferably used in combination. As above-mentioned, the thing which couple | bonded the some functional agent in the same polymer molecule may be used, or the polymer which couple | bonded each functional agent may be used in combination, and both methods may be combined. Moreover, it is also preferable to use the same functional agent component in combination. For example, it is also preferable to use the polymer-binding functional agent of a benzotriazole type ultraviolet absorber and the triazine type ultraviolet-ray absorber polymer bonding function in combination.

It does not specifically limit as a photovoltaic cell to which this invention is applied, A well-known cell is used. As the silicon system, a single crystal, polycrystalline, microcrystalline, or amorphous silicon film is used in the form of a thin film type, hybrid type, tandem type, spherical shape, or the like. A well-known compound type, dye-sensitized titanium oxide type, an organic thin film type, a quantum dot type, etc. are used.

An encapsulant sheet (high weather resistance and high resin property encapsulant sheet) or a back coat film (high weather resistance and high physical property back coat film) which has internally added the polymer binding functional agent of the present invention to improve weather resistance and resin properties The method of preparing a photovoltaic module is performed according to a conventional method. For example, a photovoltaic cell module is sandwiched from the front and back surfaces with a high weather resistance and high fat material encapsulant sheet containing a polymer binding function, and the whole is encapsulated. It is coated with a sheet of high weather resistance and high fat physical encapsulant. A glass plate was placed on the upper surface, and the whole was pressure-reduced by using an electrothermal heating laminator and vacuumed for 3 minutes. The hot plate was heated to 120 ° C to 140 ° C to soften the resin layer, press to integrate the whole, and then the hot plate was 150. It heats at C-160 degreeC, hold | maintains for 10 to 40 minutes, forms a crosslink, seals the whole, and the photovoltaic module is prepared.

Example

Next, the present invention will be described in more detail with reference to specific preparation examples and examples. In the meantime, g and% in the document are based on mass unless otherwise specified.

<Synthesis example 1> (synthesis | combination of a polymer bond ultraviolet absorber-1)

Ethylene-methyl methacrylate copolymer (28% methyl methacrylate content, melt flow (MFR) as a polymer having a reactive group in a reaction vessel equipped with a thermometer, a stirring device, a nitrogen injection machine, and a reflux condenser connected to a pressure reducing device. ) 450g / 10min) UV absorber having 357.0 g (0.997 equivalents) and a reactive group, 2- [4- (2-hydroxy-3- (2'-ethylhexyl) oxy) -2-hydroxyphenyl] -4 160.9 g (0.276 mol) of, 6-bis (2,4-dimethylphenyl) -1,3,5-triazine (molecular weight: 584) was added thereto, followed by heating and melting while blowing in nitrogen. 0.89 g of tin octylate and 1.79 g of 2,6-di-t-butyl-4-methylphenol (BHT) of the catalyst were added, and the temperature was increased to 200 ° C. It was made to react for 6 hours, 50 g of xylenes were dripped, and 0.89 g of tin octylic acid was further added, and it was made to react for 7 hours. The methanol powder produced during the reaction was removed off-system from the cooler. The progress of the reaction was confirmed by infrared absorption spectrum. After completion of the reaction, the product was distilled off under reduced pressure, cooled, cooled, injected into isopropyl alcohol, and the reaction product was precipitated and filtered. It wash | cleaned with isopropyl alcohol, it dried, and obtained "polymer-bonded ultraviolet absorber-1." The product was confirmed by infrared absorption spectrum and NMR. The content rate of the ultraviolet absorber residue was 30.2%.

<Synthesis example 2> (synthesis of polymer bond ultraviolet absorber-2)

Ethylene-vinyl alcohol-vinyl acetate copolymer (mass ratio; 82.1: 14.7: 3.1, hydroxyl equivalent: 299.4) 375.4 g (1.254 equivalence), 200 g of xylenes, 3- [3- (2H- 182.6 g (0.497 mol) of benzotriazol-2-yl) -4-hydroxy-5-t-butyl-phenyl] propionic acid ethyl ester (molecular weight: 367.4) was added, and it melt | dissolved by heating. 0.38g of monobutyltin oxide and 0.76g of BHT were added as a catalyst, and it heated and reacted similarly to the synthesis example 1, and obtained the "polymer bond ultraviolet absorber-2." The product was confirmed by infrared absorption spectrum and NMR. The content rate of the ultraviolet absorber residue was 30.1%.

<Synthesis example 3> (synthesis | combination of a polymer bond ultraviolet absorber-3)

378.5 g (0.9735 equivalences) and 2- [3-hydroxy-4- (2H-benzotriazol-2-yl) -phenyl-oxy] -ethyl alcohol (molecular weight: 270.3) of an ethylene-methyl methacrylate copolymer "Polymer-bonded ultraviolet absorber-3" was obtained in the same manner as in Synthesis example 1 except that 165.2 g (0.611 mol), 0.87 g of tin octylate and 1.74 g of BHT were used as a catalyst. The product was confirmed by infrared absorption spectrum and NMR. The content rate of the ultraviolet absorber residue was 30.3%.

<Synthesis example 4> (synthesis of polymer-bonding light stabilizer-1)

374.4 g (1.046 equivalents) of ethylene-methyl methacrylate copolymer and 132.0 g (0.771 mol) of 4-hydroxy-1,2,2,6,6-pentamethyl-piperidine (molecular weight: 171.3), catalyst As the synthesis example 1, except that 0.75 g of tetrabutyl titanate and 1.87 g of BHT were used, "polymer-bonding light stabilizer-1" was obtained. The product was confirmed by infrared absorption spectrum and NMR.

<Synthesis example 5> (synthesis of polymer-bonded antioxidant-1)

308.0 g (1.029 equiv) of ethylene vinyl alcohol vinyl acetate copolymer and 234.8 g of 3- (3 ', 5'-di-t-butyl-4'-hydroxyphenyl) propionic acid ethyl ester (average molecular weight: 306.4) 0.766 mol) and the same thing as the synthesis example 2 except having used 0.59g of monobutyltin oxide and 1.17g of BHT as a catalyst, "polymer bonding antioxidant-1" were obtained. The product was confirmed by infrared absorption spectrum and NMR.

<Synthesis example 6> (synthesis of polymer-bonded ultraviolet absorber-4)

A polyvinyl butyral resin-based "polymer-bonded ultraviolet absorber-4" was prepared in the same manner as in Synthesis Example 2 except that a polyvinyl butyral resin (vinyl alcohol content: 20 mass%) was used instead of the ethylene, vinyl alcohol, or vinyl acetate copolymer. Was synthesized.

<Synthesis example 7> (synthesis of polymer-bonded ultraviolet absorber-5)

2- [4- (2-hydroxy-3- (2′-ethylhexyl) oxy] -2-hydroxyphenyl] -4,6-bis (2,4-dimethylphenyl) -1,3,5- 2- [4- (2- (carboxyethylcarbonyloxy) -3- (2'-ethylhexyl) oxy) -2-hydroxyphenyl] -4,6-bis (obtained by reacting succinic anhydride with triazine) A polyvinyl butyral resin-based "polymer-bonded ultraviolet absorber-5" was synthesized in the same manner as in Synthesis example 6 except that 2,4-dimethylphenyl) -1,3,5-triazine was used.

<Synthesis example 8> (synthesis of polymer-bonded light stabilizer-2)

1,2,2,6,6-pentamethyl-piperidine-4-oxycarbonyl obtained by reacting 4-hydroxy-1,2,2,6,6-pentamethyl-piperidine with succinic anhydride Except having used ethyl carboxylic acid, it carried out similarly to the synthesis example 6, and synthesize | combined the "polymer bond light stabilizer-2" of the polyvinyl butyral resin system.

<Synthesis example 9> (synthesis of polymer bond antioxidant-2)

A polyvinyl butyral resin-based "polymer-bonded antioxidant-2" was prepared in the same manner as in Synthesis Example 6 except that 3- (3 ', 5'-di-t-butyl-4'-hydroxyphenyl) propionic acid ethyl ester was used. Was synthesized.

<Manufacture example 1> (production example of masterbatch containing a polymer bond ultraviolet absorber)

66.23 of the polymer-bonded ultraviolet absorber-1 obtained in Synthesis Example 1 in 33.77 parts of an ethylene-vinyl acetate copolymer resin (vinyl acetate content: 28%, MFR: 15 g / 10 min) which can be used as a sealing material resin of a solar power module. The part was kneaded with a mixing roll (roll surface temperature: 120 ° C), taken out as a sheet using a sheeting machine, and cut to obtain a master batch containing a polymer-bonded ultraviolet absorber of about 20 cm x 20 cm x 5 mm. This masterbatch contains 20 mass% in conversion of triazine type ultraviolet absorber. Hereinafter, the polymer-bonded ultraviolet absorber master batch-1 will be referred to.

<Manufacture example 2> (production example of the masterbatch containing a polymer coupling functional agent)

In the same manner as in Production Example 1, each master batch containing 20% by mass of the functional component of the polymer-bonding functional agent obtained in Synthesis Examples 2 to 5 was prepared. 66.45 parts of the polymer-bonded UV absorber-2, 66.01 parts of the polymer-bonded UV absorber-3, 79.68 parts of the polymer-bonded light stabilizer-1, and 52.08 parts of the polymer-bonded antioxidant-1 were collected, respectively, so that the total mass was 100 parts. Ethylene-vinyl acetate copolymer resin was mix | blended, it knead | mixed with the mixing roll, it cut using the sheeting machine, and set it as each master batch. The polymer-bonded ultraviolet absorber master batch-2, the polymer-bonded ultraviolet absorber master batch-3, the polymer-bonded light stabilizer master batch-1, and the polymer-bonded antioxidant master batch-1, respectively.

<Manufacture example 3> (production example of the masterbatch which contains a polymer bonding function compound)

As a functional component, the master batch of the polymer binding functional agent which contains the ultraviolet absorber, the light stabilizer, and antioxidant in combination was prepared. 16.56 parts of polymer-bonded UV absorbers-1, 16.61 parts of polymer-bonded UV absorbers-2 and polymer-bonded light stabilizers to 32.51 parts of ethylene-ethyl acrylate copolymer resin (ethyl acrylate content: 20 mass%) used as the encapsulant resin. 23.90 parts of 1 and 10.42 parts of polymer-bonded antioxidant-1 were combined, kneaded, and cut to obtain a master batch. The total content of the functional component is 20% by mass, and the functional component is a hydroxyphenyltriazine ultraviolet absorber: benzotriazole ultraviolet absorber: hindered amine light stabilizer: hindered phenol antioxidant. It contains in combination at 30:20. This is hereinafter referred to as polymer binder functional complex master batch-1.

<Production example 4> (production example of polyvinyl butyral resin masterbatch)

The polymer-bonded ultraviolet absorber-4 obtained in Synthesis Example 6 and the polymer-bonded ultraviolet absorber obtained in Synthesis Example 7 using polyvinyl butyral resin used as the encapsulant resin in place of the ethylene-vinyl acetate copolymer resin used in Production Example 1. -5, the polymer-bonded light stabilizer-2 obtained in Synthesis Example 8 and the polymer-bonded antioxidant-2 obtained in Synthesis Example 9 were respectively blended, kneaded and sheeted to form a polyvinyl butyral resin master of each polymer-bonding functional agent. Got a batch. This is preferably used for polyvinyl butyral resin sealing material.

<Production example 5> (production example of additive masterbatch)

40 parts of ethylene-vinyl acetate copolymer resin used in Production Example 1, 50 parts of titanium oxide white pigment and 10 parts of triallyl cyanurate were blended and kneaded with a twin screw extruder to obtain a master batch. Hereinafter, this is called "additive master batch."

Next, using the master batch obtained above, the property in the sealing material resin by the actual compounding of the polymer binder functional agent was investigated.

7.5 parts of polymer-bonded UV absorber master batch-1, 7.5 parts of polymer-bonded UV absorber master batch-3, 7.5 parts of polymer-bonded UV stabilizer master batch-1, and 7 parts of ethylene-vinyl acetate copolymer resin, and polymer-bonded antioxidant 5.0 parts of master batch-1 were mix | blended, it knead | mixed with the mixing roll, it shape | molded by the hot press, and the sheet about thickness 1mm was produced. During the kneading, the polymer-binding functional agent is naturally not allowed to sublimate, and there is no contamination with the processing machine.

The test pieces produced from the obtained sheets showed sufficiently good results in the physical property test. Moreover, the obtained sheet was overheated by the gear oven of 60 degreeC, and the blooming phenomenon to the sheet surface of the added polymer binder functional agent was investigated from the condition of cloudy of the surface. The sheet of polymeric binding agent naturally showed no blooming to the surface.

Likewise, master batches using polymer-bonded ultraviolet absorbers-2, -4, polymer-bonded light stabilizers-2, and polymer-bonded antioxidants-2 showed the same superior performance.

Functional agents, such as a well-known low molecular weight ultraviolet absorber used for comparison, caused the blooming of a functional agent to the surface large.

In addition, thermal stability was compared with known low molecular weight ultraviolet absorbers, light stabilizers, and antioxidants. Although the weight loss considered to be attributable to the polymer component can be seen a little, the polymer-binding functional agent is known to have almost no weight loss. It has been proved that there is a significant weight by sublimation and that there is a limit in the use conditions.

In addition, the master batch using the polymer binding functional agent prepared in the other synthesis examples and production examples described above showed the same excellent performance.

<Example 1>

The ethylene-vinyl acetate copolymer resin sealing material which internally added the polymer bond composite functional agent used for a photovoltaic module was prepared as follows.

To 49.5 parts of ethylene-vinyl acetate copolymer resin (vinyl acetate content: 28%, MFR: 15 g / 10 minutes) used as a sealing material resin of a photovoltaic module, the polymer-bonded ultraviolet absorber masterbatch-1 obtained by the manufacture example 1 was 7.5 parts, 5.0 parts of polymer-bonded UV absorber master batch-3 obtained in Production Example 2, 7.5 parts of polymer-bonded light stabilizer master batch-1, 5.0 parts of polymer-bonded antioxidant master batch-1, and 5.0 parts of 20.0 parts of an additive masterbatch containing a white pigment and a polyfunctional monomer, 2.0 parts of t-butylperoxyisopropyl carbonate as a peroxide, and 0.5 parts of vinyltrimethoxysilane as a silane coupling agent were mixed, followed by sufficient mixing. It knead | mixed at 100 degreeC with the extruder, and was extrusion-molded into the sheet form of thickness 1mm.

According to the conventional method, the silicone cell module was sandwiched from the outside and inside with the ethylene vinyl acetate copolymer resin sealing material sheet obtained above, and the whole was sealed. It was coated with the back sheet which consists of a polyethylene terephthalate film (high weather resistance high physical property PET film) which added the polyester-type polymer coupling function internally, and improved weather resistance and resin physical property. The glass plate was put on the upper surface, the whole was decompressed and vacuumed for 3 minutes using the electrothermal-heating laminator, the hotplate was heated to 135 degreeC, the resin layer was softened, pressed, and the whole was integrated. Subsequently, the hot plate was heated to 150 ° C. and held for 15 minutes to form a crosslink, and the whole was sealed to prepare a solar power module.

<Example 2>

The ethylene-ethyl acrylate copolymer copolymer-type sealing material which internally added the polymer bond composite functional agent used for a photovoltaic module was prepared as follows. To 47.5 parts of ethylene-ethyl acrylate copolymer resin (ethyl acrylate content: 20 mass%) of the sealing material resin, 30.0 parts of the polymer-bonding agent composite master batch-1 obtained in Production Example 3, and the white pigment obtained in Production Example 5, and 20.0 parts of an additive masterbatch containing a polyfunctional monomer, 2.0 parts of t-butylperoxy isopropyl carbonate as a peroxide, and 0.5 parts of vinyltrimethoxysilane as a silane coupling agent were mixed, and after fully mixing, a twin screw extruder It knead | mixed for and extruded into the sheet form.

In the same manner as in Example 1, the silicone cell module was encapsulated with the ethylene-acrylic acid ester copolymer resin encapsulant sheet obtained above, coated with a high weather resistance high physical PET film, a glass plate was placed on the upper surface, and vacuumed with an electrothermally heated laminator. It heated, it pressed, the crosslinked bond was formed, the whole was sealed, and the photovoltaic module was prepared.

<Example 3>

The polyvinyl butyral resin encapsulation material to which the polymer bond composite functional agent was added internally used for the photovoltaic module was prepared like Example 1, and was prepared. Each of the polyvinyl butyral resins used as the encapsulant resin includes a polymer-bonded ultraviolet absorber-4, a polymer-bonded ultraviolet absorber-5, a polymer-bonded light stabilizer-2 and a polymer-bonded antioxidant-2 obtained in Production Example 4. The masterbatch and the additive masterbatch containing the white pigment and polyfunctional monomer obtained in the preparation example 6, t-butylperoxyisopropylcarbonate, and vinyltrimethoxysilane were mix | blended, and after mixing enough, it knead | mixed in an extruder and a sheet Extruded into shape.

In the same manner as in Example 1, the silicone cell module was encapsulated with the polyvinyl butyral resin-based encapsulant sheet obtained above, coated with a high weather resistance high physical PET film, a glass plate was placed on the upper surface, and vacuum-heated with an electrothermally heated laminator. It heated, pressed, formed the crosslink, sealed the whole, and prepared the solar power module.

The photovoltaic module according to the present invention improves the compatibility of the polymer-bonded composite functional agent with the resin member, and can sufficiently add the required amount, and also prevents loss due to sublimation and environmental pollution during heat processing. No effect was generated, and the effect could be effectively maintained for a long time without being eluted from rain water, environmental water, oil or solvent.

Claims (27)

Resin physical property improving agent which improves the outdoor exposure property of the resin member used for the photovoltaic module, A polymer bonding function formed by bonding one or two or more functional agents selected from ultraviolet absorbers, light stabilizers, and antioxidants to the polymer The resin physical property improving agent which consists of 1 type, or 2 or more types of agents. The method of claim 1,
The resin physical property improving agent added to the said resin material, or used by apply | coating or pasting on the surface of the said resin material. The method of claim 1,
The resin member for improving the physical properties of the photovoltaic module is at least one resin member selected from an encapsulant resin, a surface coating resin, and an adhesive. The method of claim 1,
The resin property improver, wherein the resin member is a polyolefin polymer, a polyether polymer, a polyester polymer, a polyamide polymer, a polyvinyl polymer, a polysilicon polymer, or a polyurethane polymer. The method of claim 1,
The encapsulant resin used in the photovoltaic module is an ethylene-vinyl acetate copolymer, an ethylene-unsaturated carboxylic acid alkyl (C1-8) ester copolymer, an ethylene-unsaturated carboxylic acid copolymer, an ethylene-unsaturated carboxylic acid alkyl (C1) 8) Ester-unsaturated carboxylic acid copolymer, and a resin physical property improving agent which is one or more sealing material resin chosen from the group which consists of these ionomers and polyvinyl butyral type resin. The method of claim 1,
The functional agent is one or more ultraviolet absorbers selected from the group consisting of benzotriazole-based, hydroxyphenyltriazine-based, benzophenone-based, benzoate-based, salicylate-based, and cyanoacrylate-based ultraviolet absorbers, Resin property improver. The method of claim 1,
The functional agent is a resin physical property improving agent, the one or more light stabilizers selected from hindered amine light stabilizers. The method of claim 1,
The functional agent is a resin physical property improving agent, wherein the functional agent is one or more antioxidants selected from the group consisting of hindered phenol-based antioxidants and phosphite-based antioxidants. The method of claim 1,
The polymer property improving agent which the said polymer is a polyolefin type polymer, a polyvinyl type polymer, a polyether type polymer, a polyester type polymer, a polyamide type polymer, a polysilicon type polymer, or a polyurethane type polymer. The method of claim 1,
The resin member used in the photovoltaic module is an encapsulant resin, and the polymer is an ethylene vinyl alcohol copolymer, an ethylene vinyl alcohol vinyl acetate copolymer, a vinyl alcohol vinyl butyral copolymer; Metha) acrylic acid copolymer, ethylene? (Meth) acrylic acid (C1-8) ester? (Meth) acrylic acid copolymer, their acid halogenide derivatives, ethylene? Maleic anhydride copolymer, ethylene? (Meth) acrylic acid lower alkyl ( A C1-4 ester copolymer, an ethylene (meth) acrylic acid glycidyl ester copolymer, and an ethylene (meth) acrylate (C1-8) ester? (Meth) acrylic acid glycidyl ester copolymer A resin physical property improving agent, which is a polymer chain obtained by reacting one or more polymers selected from the group. The method of claim 1,
The resin member used in the photovoltaic module is a back sheet, and the polymer is a fluorine-based polymer, a polyolefin-based polymer, a polyvinyl-based polymer, a poly (meth) acrylic polymer, a polyether-based polymer, a polyester-based polymer, or a polyamide. A resin physical property improving agent, which is a polymer, a polycarbonate polymer, or a polysilicon polymer. The method of claim 1,
Resin property improvement agent which the said functional agent is 2 or more types of functional agents chosen from the group which consists of a benzotriazole type ultraviolet absorber, a triazine type ultraviolet absorber, a benzophenone type ultraviolet absorber, a hindered amine light stabilizer, and a hindered phenol type antioxidant. . The method of claim 1,
A bond of the polymer and the functional agent is formed by a reaction between the reactive group introduced into the functional moiety and the polymer, and the moiety of the functional agent is a UV absorber, a hindered amine light stabilizer, and a hindered phenol type. A method for improving the physical properties of a resin member, which is one or two or more functional agent residues selected from antioxidants. The method of claim 13,
The residue of the said functional agent is [(3-alkyl (0-4 carbon) -4-hydroxy-5- (2H-benzotriazol-2-yl) -phenyl] residue, [(3-alkyl (0 carbon carbon) ? 4) -4-hydroxy-5- (2H-benzotriazol-2-yl) -phenyl] residue, [(2-alkyl (0-4) -3-hydroxy-4- (2H-benzo Triazol-2-yl) -phenyl-oxy] residue, [(2-alkyl (0-4) -3-hydroxy-4- (5-chloro-2H-benzotriazol-2-yl) -phenyl 1-or more benzotriazole type ultraviolet absorber residues selected from the group consisting of -oxy] residues,
The said reactive group is -alkylene (C1-C6) carboxylic acid, its lower alkyl (C1-C6) ester, acid halogenide, hydroxyalkyl (C1-C10) ester, (2-hydroxy-3- Alkyl (C1-C20) oxypropyl ester, (2-hydroxy-3-phenyl-oxypropyl ester; -alkylene (C1-C6) alcohol,-(2-hydroxy-3- alkyloxy (C1-C1) ? 20) Propane, (2-hydroxy-3-phenyloxy) propane, or (2-hydroxy-3-alkylcarbonyloxy (C1-20) propane, or these and tricarboxylic anhydride? Monocarboxylic acid, The resin property improver which is 1 type (s) or 2 or more types of reactors chosen from the group which consists of a reactor which a tetracarboxylic acid anhydride, a tricarboxylic acid anhydride, a monohalogenide, a glycidol, and a difunctional compound obtained by making a diepoxy compound react. The method of claim 13,
The residue of the functional agent is 4- (4,6-bis (alkyl (0-4) phenyl-1,3,5-triazin-2-yl)-(3-hydroxy) -phenyl-oxy]; One or two selected from the group consisting of residues, 4- (4,6-bis (diphenyl-1,3,5-triazin-2-yl)-(3-hydroxy) -phenyl-oxy] residues It is a triazine type ultraviolet absorber residue more than a kind,
The said reactive group is -alkylene (C1-C6) carboxylic acid, its lower alkyl (C1-C6) ester, acid halogenide, hydroxyalkyl (C1-C10) ester, (2-hydroxy-3- Alkyl (C1-C20) oxypropyl ester, (2-hydroxy-3-phenyl-oxypropyl ester; -alkylene (C1-C6) alcohol,-(2-hydroxy-3- alkyloxy (C1-C1) ? 20) Propane, (2-hydroxy-3-phenyloxy) propane, or (2-hydroxy-3-alkylcarbonyloxy (C1-20) propane, or these and tricarboxylic anhydride? Monocarboxylic acid, The resin property improver which is 1 type (s) or 2 or more types of reactors chosen from the group which consists of a reactor which a tetracarboxylic acid anhydride, a tricarboxylic acid anhydride, a monohalogenide, a glycidol, and a difunctional compound obtained by making a diepoxy compound react. The method of claim 13,
The functional agent is 4-hydroxy-2,2,6,6-tetramethyl-4-piperidine, 4-hydroxy-1,2,2,6,6-pentamethyl-4-piperidine, 1-octyloxy-4-hydroxy-2,2,6,6-tetramethyl-4-piperidine, and 2,4-bis [N-butyl-N- (1-cyclohexyloxy-2, 2,6,6-tetramethylpiperidin-4-yl) amino] -6- (2-hydroxyethylamine) -1,3,5-triazine at least one reactive group selected from the group consisting of A resin physical property improver which is a hindered amine light stabilizer. The method of claim 13,
The functional agent is 3- (3 ′, 5′-di-t-butyl-4′-hydroxyphenyl) propionic acid ethyl ester, 3- (3-t-butyl-5-methyl-4-hydroxyphenyl) propionic acid A resin physical property improving agent, which is one or more reactive hindered phenol-based antioxidants selected from the group consisting of ethyl ester and 3,5-di-t-butyl-4-hydroxybenzoic acid ethyl ester. 18. The resin improving agent according to any one of claims 1 to 17 is mixed with the same resin as the resin member or a synthetic resin and / or resin wax having compatibility therewith, and kneaded to form a sheet or pellet. A master batch characterized in that it was molded. The method of claim 18,
A master batch comprising a polymer having a content of a functional moiety of 5 to 95% by mass containing an amount of 2 to 30% by mass of a functional moiety. A liquid composition comprising the resin improving agent according to any one of claims 1 to 17, dispersed or dissolved in a liquid medium together with a coating film forming material, as necessary. The method of claim 20,
A liquid composition containing 2 to 30% by mass of the functional ingredient component and used as a coating or coating agent. The resin improving agent as described in any one of Claims 1-17 is added to the resin member used for a photovoltaic module, or it apply | coats or sticks to the surface of the said resin material, It is characterized by the above-mentioned. A method for improving outdoor exposure properties of a resin member used in a solar power module. A method for improving outdoor exposure properties of a resin member for use in a solar power module comprising adding the master batch according to claim 18 to a resin member for use in a solar power module. The method of claim 23,
A method for improving outdoor exposure properties of a resin member, wherein the master batch is added at a ratio of 0.1 to 20 parts by mass in total as a functional agent component per 100 parts by mass of the resin member. The method of improving the outdoor exposure physical property of the resin member used for a photovoltaic module which consists of applying the liquid composition of Claim 20 to the surface of the resin member used for a photovoltaic module. Use for improving the outdoor exposure property of the resin member used for the photovoltaic module of the compound which consists of combining 1 or 2 or more types of functional agents chosen from a ultraviolet absorber, a light stabilizer, and antioxidant to a polymer. The resin member article used for the photovoltaic module which was obtained by the method of improving the outdoor exposure physical property of the resin member in any one of Claims 22-25.