TW201811840A - Resin composition and use thereof - Google Patents

Abstract

This invention relates to a resin composition for a laminated glass interlayer and a resin composition for a solar cell sealing material, comprising an ionomer (A) of ethylene-unsaturated carboxylic copolymer, and a silane coupling agent (B) having an amino group, wherein the metal ions constituting the ionomer (A) of ethylene-unsaturated carboxylic copolymer comprise univalent metal ions and polyvalent metal ions.

Description

 Resin composition and use thereof  

The present invention relates to a resin composition for a laminated glass interlayer film, a laminated glass interlayer film and a laminated glass, and a resin composition for a solar cell sealing material, a solar cell sealing material, and a solar cell module.

As the laminated glass interlayer film or the solar cell sealing material, a film containing an ionic polymer of an ethylene-unsaturated carboxylic acid copolymer is known.

As a technique of such a laminated glass interlayer film, for example, those described in Patent Document 1 (Japanese Patent Laid-Open Publication No. 2009-512763).

Patent Document 1 describes a polymer sheet having a thickness of 0.25 mm or more and having at least one layer containing an ionomer or ionic polymerization in which a partially neutralized α,β-ethylenically unsaturated carboxylic acid is introduced. The layer of the compound blend, characterized in that the ionic polymer or ionic polymer blend is based on the total amount of the above-mentioned α,β-ethylenically unsaturated carboxylic acid, and is from about 1 to about 60. The amount in the range of % includes ions of one or more kinds of one-valent metals, and ions containing one or more kinds of polyvalent metals in an amount of from about 40 to about 99%.

 [Previous Technical Literature]    [Patent Literature]  

Patent Document 1: Japanese Patent Laid-Open Publication No. 2009-512763

The technical level required for the various properties of the laminated glass interlayer film is becoming higher and higher. The inventors of the present invention found the following problems with respect to the interlayer film of laminated glass.

First, a laminated glass interlayer film containing an ionic polymer of an ethylene-unsaturated carboxylic acid copolymer containing both a monovalent metal ion and a polyvalent metal ion as described in Patent Document 1 has good water resistance, but Optical properties and glass adhesion properties are not sufficiently satisfactory.

Here, according to the study by the inventors of the present invention, it is understood that the optical characteristics of the laminated glass interlayer film are improved to some extent if the ratio of the valence metal ions constituting one of the ionic polymers is increased. However, if the ratio of the valent metal ions constituting one of the ionic polymers is increased, the water resistance of the interlayer film of the laminated glass is deteriorated at this time, and the improvement of the glass adhesion is also difficult.

That is, the present inventors have clarified that there is a trade-off between the optical properties of the interlayer film containing the ionic polymer and the water resistance, and the trade-off relationship cannot be adjusted by merely adjusting one of the valent metal ions in the ionic polymer. The ratio of the valence metal ions is sufficiently improved, and it has become apparent that it is extremely difficult to improve the glass adhesion while taking into consideration optical characteristics and water resistance. In other words, the inventors of the present invention have found that there is room for improvement in the conventional laminated glass interlayer film containing an ionic polymer from the viewpoint of improving the optical properties and water resistance in a good balance and further improving the glass adhesion.

Further, the solar cell sealing material has the same problem as the above laminated glass interlayer film.

In view of the above, the present invention provides a resin composition for a laminated glass interlayer film and a solar cell sealing material which is excellent in balance of optical properties and water resistance, and which is excellent in adhesion to glass or the like.

The inventors of the present invention have made an effort to study the above problems. As a result, it has been found that by combining a decane coupling agent having an amine group with an ionic polymer containing both a monovalent metal ion and a polyvalent metal ion, the above-described trade-off relationship can be improved, and the optical properties and water resistance can be improved in balance. The adhesiveness to glass or the like can be made good, and the present invention has been completed.

In other words, according to the present invention, there is provided a resin composition for a laminated glass interlayer film, a laminated glass interlayer film, a laminated glass, and a resin composition for a solar cell sealing material, a solar cell sealing material, and a solar cell module.

 [1]  

A resin composition for a laminated glass interlayer film, which is used for forming a laminated glass interlayer film, and comprises an ionic polymer (A) of an ethylene-unsaturated carboxylic acid copolymer, and a decane coupling agent having an amine group (B) The metal ion of the ionic polymer (A) constituting the above ethylene-unsaturated carboxylic acid-based copolymer contains a monovalent metal ion and a polyvalent metal ion.

 [2]  

The resin composition for a laminated glass interlayer film according to the above [1], wherein the polyvalent metal ion in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer is relative to the monovalent metal The molar ratio of ions is 0.1 or more and 10 or less.

 [3]  

The resin composition for a laminated glass interlayer film according to the above [1], wherein the monovalent metal ion is selected from the group consisting of lithium ion, potassium ion, sodium ion, silver ion, mercury ion, and copper ion. One or two or more.

 [4]  

The resin composition for a laminated glass interlayer film according to any one of the above aspects, wherein the polyvalent metal ion is selected from the group consisting of calcium ions, magnesium ions, zinc ions, aluminum ions, cesium ions, One or more of cerium ions, cerium ions, copper ions, cadmium ions, mercury ions, tin ions, lead ions, iron ions, cobalt ions, and nickel ions.

 [5]  

The resin composition for a laminated glass interlayer film according to any one of the above [1] to [4] wherein the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer has a degree of neutralization of 5 More than % and less than 95%.

 [6]  

The resin composition for a laminated glass interlayer film according to any one of the above aspects, wherein the haze measured by the following method is less than 1.0%.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition for the interlayer glass interlayer film described above was obtained. Next, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm, vacuum-held at 140 ° C for 5 minutes by a vacuum laminator, and pressed at 0.1 MPa (gauge pressure) for 3 minutes to obtain Laminated glass. Next, the haze of the above laminated glass obtained by a haze meter was measured based on JIS K7136.

 [7]  

The resin composition for a laminated glass interlayer film according to any one of the above aspects, wherein the length of the white turbid portion measured by the following method is 5 mm or less.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition for the interlayer glass interlayer film described above was obtained. Next, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm, vacuum-held at 140 ° C for 5 minutes by a vacuum laminator, and pressed at 0.1 MPa (gauge pressure) for 3 minutes to obtain Laminated glass. Next, the obtained laminated glass was immersed in hot water at 90 ° C for 2 hours. Next, the length of the white turbid portion in the vertical direction is measured on the end surface of the laminated glass at the white turbid portion generated at the end portion of the laminated glass.

 [8]  

The resin composition for a laminated glass interlayer film according to any one of the above aspects, wherein the adhesion strength to the glass sheet measured by the following method is 10 N/15 mm or more.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition for the interlayer glass interlayer film described above was obtained. Next, the obtained film was laminated on a non-tin surface of a glass plate of 120 mm × 75 mm × 3.9 mm, vacuum-held at 140 ° C for 3 minutes by a vacuum laminator, and carried out at 0.1 MPa (gauge pressure). The pressing was performed in a minute to adhere the film to the non-tin surface of the above glass plate. Next, the film was pulled away from the glass plate at a stretching speed of 100 mm/min, and the maximum stress was calculated as the adhesion strength to the glass plate (N/15 mm).

 [9]  

The resin composition for a laminated glass interlayer film according to any one of the above [1], wherein the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer comprises: ethylene-unsaturated A valence metal ion ionic polymer (A1) which is one of a carboxylic acid copolymer, and a polyvalent metal ion ionic polymer (A2) of an ethylene-unsaturated carboxylic acid copolymer.

 [10]  

The resin composition for a laminated glass interlayer film according to any one of the above-mentioned [1], wherein the ionic polymer (A) constituting the ethylene-unsaturated carboxylic acid copolymer is unsaturated carboxylic acid. Containing at least one selected from the group consisting of acrylic acid and methacrylic acid.

 [11]  

The resin composition for a laminated glass interlayer film according to any one of the above aspects of the present invention, wherein the resin composition for a laminated glass interlayer film is 100% by mass or more The content of the decane coupling agent (B) is 0.001% by mass or more and 5% by mass or less.

 [12]  

The resin composition for a laminated glass interlayer film according to any one of the above [1] to [11], wherein the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer is formed When the total amount of the constituent units of the ethylene-unsaturated carboxylic acid copolymer is 100% by mass, the constituent unit derived from the unsaturated carboxylic acid is 5% by mass or more and 35% by mass or less.

 [13]  

A laminated glass interlayer film comprising the resin composition for a laminated glass interlayer film according to any one of the above [1] to [12].

 [14]  

A laminated glass comprising: the laminated glass interlayer film described in the above [13]; and a transparent plate member provided on both surfaces of the laminated glass interlayer film.

 [15]  

The laminated glass according to the above [14], wherein the haze measured by a haze meter based on JIS K7136 is less than 1.0%.

 [16]  

The laminated glass according to [14] or [15], wherein the length of the white turbid portion measured by the following method is 5 mm or less.

 (method)  

The laminated glass was immersed in hot water at 90 ° C for 2 hours. Next, the length of the white turbid portion in the vertical direction is measured on the end surface of the laminated glass at the white turbid portion generated at the end portion of the laminated glass.

 [17]  

A resin composition for a solar cell encapsulant, which is used for forming a solar cell encapsulant, and which comprises an ionic polymer (A) of an ethylene-unsaturated carboxylic acid copolymer, and a decane coupling agent having an amine group ( B) The metal ion of the ionic polymer (A) constituting the above ethylene-unsaturated carboxylic acid-based copolymer contains a monovalent metal ion and a polyvalent metal ion.

 [18]  

The resin composition for a solar cell encapsulant according to the above [17], wherein the polyvalent metal ion in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer is relative to the monovalent metal The molar ratio of ions is 0.1 or more and 10 or less.

 [19]  

The resin composition for a solar cell sealing material according to the above [17] or [18] wherein the monovalent metal ion is selected from the group consisting of lithium ion, potassium ion, sodium ion, silver ion, mercury ion, and copper ion. One or more of them.

 [20]  

The resin composition for a solar cell encapsulant according to any one of the above aspects, wherein the polyvalent metal ion is selected from the group consisting of calcium ions, magnesium ions, zinc ions, aluminum ions, cesium ions, One or more of cerium ions, cerium ions, copper ions, cadmium ions, mercury ions, tin ions, lead ions, iron ions, cobalt ions, and nickel ions.

 [twenty one]  

The resin composition for a solar cell encapsulant according to any one of the above aspects, wherein the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer has a degree of neutralization of 5 More than % and less than 95%.

 [twenty two]  

The resin composition for a solar cell encapsulant according to any one of the above aspects, wherein the haze measured by the following method is less than 1.0%.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition for a solar cell sealing material described above was obtained. Next, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm, vacuum-held at 140 ° C for 5 minutes by a vacuum laminator, and pressed at 0.1 MPa (gauge pressure) for 3 minutes to obtain Laminated glass. Next, the haze of the above laminated glass obtained by a haze meter was measured based on JIS K7136.

 [twenty three]  

The resin composition for a solar cell encapsulant according to any one of the above aspects, wherein the length of the turbidity portion measured by the following method is 5 mm or less.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition for a solar cell sealing material described above was obtained. Next, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm, vacuum-held at 140 ° C for 5 minutes by a vacuum laminator, and pressed at 0.1 MPa (gauge pressure) for 3 minutes to obtain Laminated glass. Next, the obtained laminated glass was immersed in hot water at 90 ° C for 2 hours. Next, the length of the white turbid portion in the vertical direction is measured on the end surface of the laminated glass at the white turbid portion generated at the end portion of the laminated glass.

 [twenty four]  

The resin composition for a solar cell encapsulant according to any one of the above aspects, wherein the adhesion strength to the glass plate measured by the following method is 10 N/15 mm or more.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition for a solar cell sealing material described above was obtained. Next, the obtained film was laminated on a non-tin surface of a glass plate of 120 mm × 75 mm × 3.9 mm, vacuum-held at 140 ° C for 3 minutes by a vacuum laminator, and carried out at 0.1 MPa (gauge pressure). The pressing was performed in a minute to adhere the film to the non-tin surface of the above glass plate. Next, the film was pulled away from the glass plate at a stretching speed of 100 mm/min, and the maximum stress was calculated as the adhesion strength to the glass plate (N/15 mm).

 [25]  

The resin composition for a solar cell encapsulant according to any one of the above aspects, wherein the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer comprises: ethylene-unsaturated A valence metal ion ionic polymer (A1) which is one of a carboxylic acid copolymer, and a polyvalent metal ion ionic polymer (A2) of an ethylene-unsaturated carboxylic acid copolymer.

 [26]  

The resin composition for a solar cell encapsulant according to any one of the above aspects, wherein the ionic polymer (A) constituting the ethylene-unsaturated carboxylic acid copolymer is unsaturated carboxylic acid. Containing at least one selected from the group consisting of acrylic acid and methacrylic acid.

 [27]  

The resin composition for a solar cell encapsulant according to any one of the above aspects, wherein the solar cell encapsulant material resin composition is 100% by mass, the amine group The content of the decane coupling agent (B) is 0.001% by mass or more and 5% by mass or less.

 [28]  

The resin composition for a solar cell encapsulant according to any one of the above [17] to [27], wherein the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer is formed When the total amount of the constituent units of the ethylene-unsaturated carboxylic acid copolymer is 100% by mass, the constituent unit derived from the unsaturated carboxylic acid is 5% by mass or more and 35% by mass or less.

 [29]  

A solar cell sealing material comprising the resin composition for a solar cell encapsulant according to any one of the above [17] to [28].

 [30]  

The solar cell sealing material according to the above [29], wherein the haze measured by a haze meter based on JIS K7136 is less than 1.0%.

 [31]  

A solar battery module comprising the solar battery sealing material described in the above [29].

According to the present invention, it is possible to realize a laminated glass interlayer film and a solar cell sealing material which are excellent in balance of glass adhesion, optical properties, and water resistance.

10‧‧‧Laminated glass

11‧‧‧Laminated glass interlayer film

13‧‧‧Transparent plate-like members

The above and other objects, features and advantages of the present invention will become more apparent from

Fig. 1 is a cross-sectional view schematically showing an example of a structure of a laminated glass according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described using the drawings. The figure is a rough view and does not match the actual size ratio. In addition, the "X~Y" of the numerical range means X or more and Y or less unless otherwise specified. Further, (meth)acrylic means acrylic acid or methacrylic acid.

 1. Resin composition for laminated glass interlayer film  

Fig. 1 is a cross-sectional view schematically showing an example of a structure of a laminated glass 10 according to an embodiment of the present invention.

The resin composition (P) for a laminated glass interlayer film of the present embodiment is a resin composition for forming a laminated glass interlayer film 11, comprising an ionic polymer (A) of an ethylene-unsaturated carboxylic acid copolymer, and having The amine-based decane coupling agent (B), and the metal ion of the ionic polymer (A) constituting the ethylene-unsaturated carboxylic acid-based copolymer contains a monovalent metal ion and a polyvalent metal ion.

According to the study by the inventors of the present invention, a laminated glass interlayer film comprising an ionic polymer of an ethylene-unsaturated carboxylic acid copolymer containing both a monovalent metal ion and a polyvalent metal ion has good water resistance, but Optical properties and glass adhesion are not sufficient.

Further, according to the study by the inventors of the present invention, if the ratio of the valence metal ions constituting one of the ionic polymers is increased, the optical properties of the laminated glass interlayer film are somewhat improved, but at this time, the interlayer film of the laminated glass is The water resistance is deteriorated and the glass adhesion is not sufficient.

That is, the present inventors have clarified that there is a trade-off between the optical properties of the interlayer film containing the ionic polymer and the water resistance, and the trade-off relationship cannot be adjusted by merely adjusting one of the valent metal ions in the ionic polymer. The ratio of the valence metal ions is sufficiently improved, and it becomes extremely difficult to improve the glass adhesion while taking into consideration optical characteristics and water resistance. In other words, the inventors of the present invention have found that there is room for improvement in the conventional laminated glass interlayer film containing an ionic polymer from the viewpoint of improving the optical properties and water resistance in a good balance and further improving the glass adhesion.

The inventors of the present invention have made an effort to study the above problems. As a result, it has been found that the above-mentioned decane coupling agent (B) having an amine group can be improved by combining an ionic polymer (A) containing an ethylene-unsaturated carboxylic acid copolymer having a monovalent metal ion and a polyvalent metal ion. The trade-off relationship improves the optical properties and water resistance in a well-balanced manner, and achieves sufficient glass adhesion.

In other words, the resin composition (P) for a laminated glass interlayer film of the present embodiment contains an ionic polymer (A) and an amine having an ethylene-unsaturated carboxylic acid-based copolymer containing a monovalent metal ion and a polyvalent metal ion. The base decane coupling agent (B) can improve the balance of optical properties and water resistance properties, and achieve sufficient glass adhesion.

Although the reason is not clear, it can be considered that the reason is that the amine group having the amine group of the decane coupling agent (B) is coordinated to the polyvalent metal in the ethylene-unsaturated carboxylic acid copolymer, and hinders the ethylene-unsaturated carboxylic acid. The ionic polymer (A) of the acid-based copolymer is grown by crystal growth, whereby the ionic polymer (A) having an ethylene-unsaturated carboxylic acid-based copolymer containing a monovalent metal ion and a polyvalent metal ion is excellent. The water resistance is further improved while the water resistance is improved. In addition, since the amine group of the amine group-containing decane coupling agent (B) is bonded to the carboxyl group in the ethylene-unsaturated carboxylic acid copolymer, the resin composition (P) for a laminated glass interlayer film according to the present embodiment, A laminated glass interlayer film which is excellent not only in optical properties and water resistance but also in adhesion to a transparent plate member can be obtained.

Further, the resin composition (P) for a laminated glass interlayer film according to the present embodiment can be used as an ionic polymer (A) for an ethylene-unsaturated carboxylic acid copolymer containing a monovalent metal ion and a polyvalent metal ion. When the decane coupling agent (B) having an amine group is combined, the processability (film forming property) of the resin composition (P) for a laminated glass interlayer film is improved, and the glass adhesion, optical properties, and water resistance can be improved. Performance balance.

Thereby, a laminated glass interlayer film and a laminated glass which are excellent in appearance and excellent in balance of properties such as glass adhesion, optical properties, and water resistance can be obtained.

Hereinafter, each component constituting the resin composition for a laminated glass interlayer film of the present embodiment will be described.

 <Ionic polymer (A) of ethylene-unsaturated carboxylic acid copolymer)  

The ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer of the present embodiment is a polymer obtained by copolymerizing at least one of ethylene and an unsaturated carboxylic acid, and at least a carboxyl group is neutralized with a metal ion. Part of the resin. The ethylene-unsaturated carboxylic acid-based copolymer may, for example, be a copolymer comprising ethylene and an unsaturated carboxylic acid.

Examples of the unsaturated carboxylic acid of the ionic polymer (A) constituting the ethylene-unsaturated carboxylic acid-based copolymer of the present embodiment include acrylic acid, methacrylic acid, 2-ethylacrylic acid, crotonic acid, and cis-butylene. Aenedioic acid, fumaric acid, itaconic acid, maleic anhydride, fumaric anhydride, itaconic anhydride, monomethyl maleate, monoethyl maleate, and the like.

Among these, the unsaturated carboxylic acid preferably contains at least one selected from the group consisting of acrylic acid and methacrylic acid from the viewpoint of productivity or hygienic properties of the ethylene-unsaturated carboxylic acid copolymer. These unsaturated carboxylic acids may be used alone or in combination of two or more. Further, an ethylene-unsaturated carboxylic acid containing the above unsaturated carboxylic acid such as acrylic acid or methacrylic acid as a constituent unit may be further added to the ionic polymer of the ethylene-unsaturated carboxylic acid copolymer of one or more kinds. The acid-based copolymer is used to form an ionic polymer (A) of an ethylene-unsaturated carboxylic acid copolymer.

The ionic polymer (A) is prepared by further adding an ethylene-unsaturated carboxylic acid copolymer to an ionic polymer of an ethylene-unsaturated carboxylic acid copolymer containing a monovalent metal ion and a polyvalent metal ion. While maintaining the processability (film forming property) of the resin composition (P) for the interlayer glass interlayer film, it exhibits higher glass adhesion and further improves the balance of optical properties and water resistance.

In the present embodiment, an ethylene-(meth)acrylic acid copolymer of an ethylene-unsaturated carboxylic acid copolymerization system is particularly preferred.

In the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer of the present embodiment, when the entire constituent unit constituting the ethylene-unsaturated carboxylic acid-based copolymer is 100% by mass, it is derived from ethylene. The constituent unit is preferably 65 mass% or more and 95 mass% or less, more preferably 75 mass% or more and 92 mass% or less.

When the constituent unit derived from ethylene is at least the above lower limit value, the heat resistance, mechanical strength, water resistance, workability, and the like of the obtained laminated glass interlayer film can be further improved. In addition, when the constituent unit derived from ethylene is at most the above upper limit value, transparency, flexibility, adhesion, and the like of the obtained laminated glass interlayer film can be further improved.

In the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer of the present embodiment, when the entire constituent unit constituting the ethylene-unsaturated carboxylic acid-based copolymer is 100% by mass, it is self-saturated. The constituent unit of the carboxylic acid derivative is preferably 5% by mass or more and 35% by mass or less, more preferably 8% by mass or more and 25% by mass or less.

When the constituent unit derived from the unsaturated carboxylic acid is at least the above lower limit value, the transparency, flexibility, adhesion, and the like of the obtained laminated glass interlayer film can be further improved. In addition, when the constituent unit derived from the unsaturated carboxylic acid is at most the above upper limit value, the heat resistance, mechanical strength, water resistance, workability and the like of the obtained laminated glass interlayer film can be further improved.

In the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer of the present embodiment, when the entire constituent unit constituting the ethylene-unsaturated carboxylic acid-based copolymer is 100% by mass, it may be contained. It is preferably 0% by mass or more and 30% by mass or less, more preferably 0% by mass or more and 25% by mass or less of a constituent unit derived from another copolymerizable monomer. Examples of the other copolymerizable monomer include unsaturated esters such as vinyl acetate such as vinyl acetate and vinyl propionate; methyl (meth)acrylate, ethyl (meth)acrylate, and (meth)acrylic acid. (Meth) acrylate such as butyl ester, n-butyl (meth)acrylate or 2-ethylhexyl (meth)acrylate. When the constituent unit derived from the other copolymer monomer is contained in the above range, it is preferable in terms of improving the flexibility of the obtained interlayer interlayer film.

The monovalent metal ion of the ionic polymer (A) constituting the ethylene-unsaturated carboxylic acid copolymer of the present embodiment preferably contains a source selected from the group consisting of lithium ion, potassium ion, sodium ion, silver ion, mercury ion, and copper. One or more of the ions and the like, more preferably one or more selected from the group consisting of lithium ions, potassium ions, and sodium ions, and more preferably at least one selected from the group consisting of lithium ions and sodium ions. It is good to contain sodium ions.

The polyvalent metal ion of the ionic polymer (A) constituting the ethylene-unsaturated carboxylic acid-based copolymer of the present embodiment preferably contains a calcium ion, a magnesium ion, a zinc ion, an aluminum ion, a cerium ion, and a cerium. One or more of ions, strontium ions, copper ions, cadmium ions, mercury ions, tin ions, lead ions, iron ions, cobalt ions, and nickel ions, more preferably containing calcium ions, magnesium ions, zinc One or two or more of ions, aluminum ions, and cerium ions further preferably contain at least one selected from the group consisting of zinc ions and magnesium ions, and particularly preferably zinc ions.

In the resin composition (P) for a laminated glass interlayer film of the present embodiment, the molar ratio of the polyvalent metal ion in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer to the monovalent metal ion (The number of moles of the polyvalent metal ion/the number of moles of the monovalent metal ion) is preferably 0.1 or more, more preferably 0.2, from the viewpoint of further improving the water resistance of the obtained interlayer film of the laminated glass. The above is further preferably 0.3 or more.

Further, in the resin composition (P) for a laminated glass interlayer film of the present embodiment, the polyvalent metal ion in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer is relative to the monovalent metal ion. The ear ratio is preferably 10 or less, more preferably 8 or less, still more preferably 5 or less, and still more preferably 3 or less, from the viewpoint of further improving the optical characteristics of the obtained laminated interlayer film.

In the resin composition (P) for a laminated glass interlayer film of the present embodiment, the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer may be, for example, one of ethylene-unsaturated carboxylic acid-based copolymers. The structure of the valence metal ion ionic polymer (A1) and the polyvalent metal ion ionic polymer (A2) of the ethylene-unsaturated carboxylic acid copolymer.

Thus, by adjusting the mixing ratio of the valent metal ion ionic polymer (A1) of one of the ethylene-unsaturated carboxylic acid copolymers and the polyvalent metal ion ionic polymer (A2) of the ethylene-unsaturated carboxylic acid copolymer The ratio of the one-valent metal ion to the polyvalent metal ion in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer can be easily adjusted.

The degree of neutralization of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer of the present embodiment is not particularly limited, but the obtained laminated glass interlayer film is soft or adhesive, mechanical strength, and processability. The viewpoint of being more excellent is preferably 95% or less, more preferably 90% or less, still more preferably 80% or less, still more preferably 70% or less, and still more preferably 60% or less.

In addition, the degree of neutralization of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer of the present embodiment is not particularly limited, but the transparency, heat resistance, water resistance, and the like of the obtained interlayer film of the laminated glass are obtained. From the viewpoint of being more preferable, it is preferably 5% or more, more preferably 10% or more, further preferably 15% or more, and particularly preferably 20% or more.

Here, the degree of neutralization of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer is a carboxyl group neutralized by a metal ion among all the carboxyl groups contained in the ethylene-unsaturated carboxylic acid-based copolymer. proportion(%).

The method for producing the ethylene-unsaturated carboxylic acid copolymer of the ionic polymer (A) constituting the ethylene-unsaturated carboxylic acid copolymer of the present embodiment is not particularly limited, and it can be produced by a known method. For example, it can be obtained by performing radical copolymerization of each polymerization component under high temperature and high pressure. Further, the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer of the present embodiment can be obtained by reacting an ethylene-unsaturated carboxylic acid copolymer with a metal compound. Further, an ionic polymer (A) of an ethylene-unsaturated carboxylic acid copolymer is also commercially available.

In the present embodiment, the melt flow rate (MFR) of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer measured at 190 ° C under a load of 2160 g is preferably 0.01 based on JIS K7210:1999. g/10 minutes or more and 50 g/10 minutes or less, more preferably 0.1 g/10 minutes or more and 30 g/10 minutes or less, and particularly preferably 0.1 g/10 minutes or more and 10 g/10 minutes or less. When the MFR is at least the above lower limit value, the workability of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer is further improved. When the MFR is at most the above upper limit value, the heat resistance, mechanical strength, and the like of the obtained laminated glass interlayer film can be further improved.

The content of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer in the resin composition (P) for a laminated glass intermediate film of the present embodiment is a resin composition (P) for a laminated glass interlayer film. When the total amount is 100% by mass, it is preferably 50% by mass or more and 99.999% by mass or less, more preferably 70% by mass or more and 99.9955% by mass or less, still more preferably 80% by mass or more and 99.99% by mass or less. It is preferably 90% by mass or more and 99.95% by mass or less. When the content of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer is within the above range, the balance of optical properties, interlayer adhesion, and water resistance of the obtained laminated glass can be improved. Further better.

 <Alkane coupling agent (B) having an amine group>  

Examples of the decane coupling agent (B) having an amine group in the present embodiment include N-(2-aminoethyl)-3-aminopropyltrimethoxydecane and N-(2-aminoethyl). 3-aminopropylmethyldimethoxydecane, N-(2-aminoethyl)-3-aminopropylmethyldiethoxydecane, N-(2-aminoethyl 3-aminopropyltriethoxydecane, N-(2-aminomethyl)-3-aminopropyltrimethoxydecane, N-(2-aminomethyl)-3- Aminopropylmethyldimethoxydecane, N-(2-aminomethyl)-3-aminopropylmethyldiethoxydecane, N-(2-aminomethyl)-3- Aminopropyltriethoxydecane, 3-aminopropyltrimethoxydecane, 3-aminopropyltriethoxydecane, 3-triethoxyindolyl-N-(1,3-di Methyl-butylidene)propylamine, N-phenyl-3-aminopropyltrimethoxydecane, N-phenyl-3-aminopropyltriethoxydecane, N-(vinylbenzyl)- 2-Aminoethyl-3-aminopropyltrimethoxydecane hydrochloride, N-(2-aminomethyl)-8-aminooctyltrimethoxydecane, N-(2-amine Ethylethyl)-8-aminooctyltrimethoxydecane, N-(2-aminomethyl)-8-aminooctyltriethoxydecane, N-(2- Yl-ethyl) -8-octyl triethoxy silane-amine and the like.

In the resin composition (P) for a laminated glass interlayer film of the present embodiment, an amine is further obtained from the viewpoint of further improving the balance of optical properties, water resistance and interlayer adhesion of the obtained laminated glass. When the content of the resin composition (P) for a laminated glass interlayer film is 100% by mass, the content of the decane coupling agent (B) is preferably 0.001% by mass or more and 5% by mass or less, more preferably 0.005% by mass. It is 100% or more and 2% by mass or less, and more preferably 0.01% by mass or more and 1% by mass or less.

 <Other ingredients>  

The resin composition (P) for a laminated glass interlayer film of the present embodiment may contain an ionic polymer (A) of an ethylene-unsaturated carboxylic acid-based copolymer and a decane having an amine group in the range of the object of the present invention. A component other than the coupling agent (B). The other component is not particularly limited, and examples thereof include a plasticizer, an antioxidant, an ultraviolet absorber, a wavelength conversion agent, an antistatic agent, a surfactant, a colorant, a light stabilizer, a foaming agent, a lubricant, and a crystal. a nucleating agent, a crystallization accelerator, a crystallization retarder, a catalyst deactivator, a heat ray absorbing agent, a heat ray reflex agent, a heat dissipating agent, a thermoplastic resin other than the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer, Thermosetting resin, inorganic filler, organic filler, impact modifier, slip agent, crosslinking agent, crosslinking assistant, adhesive, decane coupling agent other than amine-based decane coupling agent (B), Processing aids, mold release agents, hydrolysis inhibitors, heat stabilizers, anti-caking agents, anti-fogging agents, flame retardants, flame retardant additives, light diffusing agents, antibacterial agents, anti-mold agents, dispersants or other resins Wait. The other components may be used alone or in combination of two or more.

 <Haze>  

In the resin composition (P) for a laminated glass interlayer film of the present embodiment, the haze measured by the following method is preferably less than 1.0%, more preferably 0.8% or less, still more preferably 0.6% or less. . When the haze is at most the above upper limit value, the transparency of the obtained laminated glass can be further improved.

In order to achieve such haze, it is suitable to adjust the molar ratio of the polyvalent metal ion in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer to the monovalent metal ion, or the laminated glass of the present embodiment. The content of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer in the resin composition for intermediate film (P) and the decane coupling agent (B) having an amine group may be, but the ethylene is not increased. While the ratio of the one-valent metal ion in the ionic polymer (A) of the saturated carboxylic acid copolymer is preferable, it is particularly important to suitably contain the decane coupling agent (B) having an amine group.

The lower limit of the haze of the resin composition (P) for a laminated glass interlayer film of the present embodiment is not particularly limited, and is, for example, 0.01% or more.

By using the resin composition (P) for a laminated glass interlayer film of the present embodiment, the haze of the laminated glass of the present embodiment can be made less than 1.0%. The preferred haze of the laminated glass is the same as described above.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition (P) for a laminated glass interlayer film of the present embodiment was obtained. Next, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm, vacuum-held at 140 ° C for 5 minutes by a vacuum laminator, and pressed at 0.1 MPa (gauge pressure) for 3 minutes to obtain Laminated glass. Next, the haze of the above laminated glass obtained by a haze meter was measured based on JIS K7136.

 <length of white turbidity>  

In the resin composition (P) for a laminated glass interlayer film of the present embodiment, the length of the white turbid portion measured by the following method is preferably 5 mm or less, more preferably 2 mm or less, and still more preferably 1 mm or less. When the length of the white turbid portion is at most the above upper limit value, the water resistance of the obtained laminated glass can be further improved.

In order to achieve the length of such a turbid portion, the molar ratio of the polyvalent metal ion to the monovalent metal ion in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer is suitably adjusted, or the embodiment The content of the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer (A) and the decane coupling agent (B) having an amine group in the resin composition (P) for the laminated glass interlayer film may be, but the ethylene may be increased. The ratio of the polyvalent metal ion in the ionic polymer (A) of the unsaturated carboxylic acid-based copolymer is particularly important.

The lower limit of the length of the white turbid portion of the resin composition (P) for a laminated glass intermediate film of the present embodiment is preferably 0 mm.

By using the resin composition (P) for a laminated glass intermediate film of the present embodiment, the length of the white turbid portion of the laminated glass of the present embodiment can be made 5 mm or less. The preferred value of the white turbid portion of the laminated glass is the same as described above.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition (P) for a laminated glass interlayer film of the present embodiment was obtained. Next, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm, vacuum-held at 140 ° C for 5 minutes by a vacuum laminator, and pressed at 0.1 MPa (gauge pressure) for 3 minutes to obtain Laminated glass. Next, the obtained laminated glass was immersed in hot water at 90 ° C for 2 hours. Next, the length of the white turbid portion in the vertical direction is measured on the end surface of the laminated glass at the white turbid portion generated at the end portion of the laminated glass.

 <Adhesive strength to glass sheets>  

In the resin composition (P) for a laminated glass interlayer film of the present embodiment, the adhesion strength to the glass plate measured by the following method is preferably 10 N/15 mm or more, more preferably 15 N/15 mm or more. It is 20N/15mm or more. When the adhesion strength to the glass sheet is at least the lower limit value, the interlayer adhesion of the obtained laminated glass can be further improved.

In order to achieve the adhesion strength to the glass sheet, the ionic polymer (A) and the amine having the ethylene-unsaturated carboxylic acid copolymer in the resin composition (P) for a laminated glass interlayer film of the present embodiment are appropriately adjusted. The content of the decane coupling agent (B) may be the same.

 (method)  

A film of 120 mm × 75 mm × 0.4 mm containing the resin composition (P) for a laminated glass interlayer film of the present embodiment was obtained. Next, the obtained film was laminated on a non-tin surface of a glass plate of 120 mm × 75 mm × 3.9 mm, vacuum-held at 140 ° C for 3 minutes by a vacuum laminator, and carried out at 0.1 MPa (gauge pressure). The pressing was performed in a minute to adhere the film to the non-tin surface of the above glass plate. Next, the film was pulled away from the glass plate at a stretching speed of 100 mm/min, and the maximum stress was calculated as the adhesion strength to the glass plate (N/15 mm).

The above resin composition for a laminated glass interlayer film has been described, and the same resin composition as described above can be used as the resin composition for a solar cell sealing material, and the same effects can be obtained.

 2. Laminated glass interlayer film  

The laminated glass interlayer film 11 of the present embodiment includes the resin composition (P) for a laminated glass interlayer film of the present embodiment.

The thickness of the laminated glass interlayer film 11 of the present embodiment is, for example, 0.1 mm or more and 10 mm or less, preferably 0.2 mm or more and 5 mm or less, more preferably 0.3 mm or more and 2 mm or less.

When the thickness of the glass interlayer film 11 is at least the above lower limit value, the mechanical strength of the glass interlayer film 11 can be further improved. Further, when the thickness of the glass interlayer film 11 is at most the above upper limit value, the optical characteristics or interlayer adhesion of the obtained laminated glass can be further improved.

The method for producing the laminated glass interlayer film 11 of the present embodiment is not particularly limited, and a conventionally known production method can be used.

As a method of producing the laminated glass interlayer film 11 of the present embodiment, for example, a press molding method, an extrusion molding method, a T-die molding method, an injection molding method, a compression molding method, a casting molding method, a calender molding method, or a blowing method can be used. Expansion molding method, etc.

The solar cell sealing material is preferably the same film thickness as the laminated glass interlayer film, and can be produced by the same manufacturing method.

 3. Laminated glass  

Fig. 1 is a cross-sectional view schematically showing an example of a structure of a laminated glass 10 according to an embodiment of the present invention.

The laminated glass 10 of the present embodiment includes the laminated glass interlayer film 11 of the present embodiment and the transparent plate member 13 provided on both surfaces of the laminated glass interlayer film 11. The laminated glass 10 of the present embodiment is excellent in balance of optical properties and water resistance by providing the laminated glass interlayer film 11 of the present embodiment. Further, the interlayer adhesiveness between the glass interlayer film 11 and the transparent plate member 13 is also excellent.

The laminated glass interlayer film 11 may be used in two or more layers, or a layer containing another resin may be sandwiched between two laminated glass interlayer films 11 to form three or more layers.

The transparent plate member 13 is not particularly limited, and for example, a transparent plate glass which is generally used can be used, and examples thereof include a float plate glass, a buffing plate glass, a stencil glass, a wire mesh glass, a wire plate glass, and a colored plate glass. Inorganic glass such as line heat absorbing plate glass, line heat reflecting plate glass, green glass. Further, a polycarbonate plate, a poly(meth)acrylate plate, a poly(methyl) methacrylate plate, a polystyrene plate, a cyclic polyolefin plate, a polyethylene terephthalate plate, or a poly An organic plastic plate such as an ethylene naphthalate plate or a polyvinyl butyrate plate.

Further, the transparent plate member 13 may be suitably subjected to surface treatment such as corona treatment, plasma treatment, or flame treatment.

The thickness of the transparent plate member 13 is, for example, 1 mm or more and 20 mm or less. In the laminated glass 10 of the present embodiment, the transparent plate-shaped members 13 provided on both surfaces of the laminated glass interlayer film 11 may be the same, or different plate-shaped members may be used in combination.

The method for producing the laminated glass 10 of the present embodiment is not particularly limited, and a conventionally known production method can be used.

As a method of manufacturing the laminated glass 10 of the present embodiment, for example, as shown in FIG. 1, the laminated glass interlayer film 11 of the present embodiment is sandwiched between two transparent plate-shaped members 13, and then heated and pressurized. Method, etc.

These laminated glasses can be used for various purposes, for example, for laminated glass for construction, laminated glass for automobiles, ordinary buildings, agricultural buildings, windows for railways, and the like, but are not limited to such applications.

 4. Solar battery module  

The solar cell module of the present embodiment includes at least a substrate on which sunlight is incident, a solar cell element, and a solar cell encapsulant of the present embodiment. The solar cell module of the present embodiment may further include a protective material as needed. Further, the substrate on which sunlight is incident may be simply referred to as a substrate.

The solar cell module of the present embodiment can be produced by fixing a solar cell element sealed by the solar cell encapsulant of the present embodiment to the substrate.

As such a solar cell module, various types can be exemplified. For example, a substrate which is sandwiched by a sealing material from both sides of a solar cell element, such as a substrate/sealing material/solar cell element/sealing material/protective material; a solar cell which is previously formed on the surface of a substrate such as glass The element is formed of a substrate/solar cell element/sealing material/protective material; a solar cell element formed on the inner peripheral surface of the substrate, for example, an amorphous solar cell element is formed on a fluororesin film by sputtering or the like. On the material of the material, the constituents of the sealing material and the protective material are formed.

In addition, when the substrate on which the sunlight is incident is used as the upper portion of the solar cell module, the protective material is placed on the opposite side to the substrate side of the solar cell module, that is, the lower portion. For the lower protective material.

As the solar cell element, a group such as a single crystal germanium, a polycrystalline germanium or an amorphous germanium, a III-V group or a II-VI such as gallium-arsenic, copper-indium-selenium, copper-indium-gallium-selenium or cadmium-strontium can be used. Various solar cell elements such as a compound semiconductor system. The solar cell encapsulant of the present embodiment is particularly useful for sealing an amorphous germanium solar cell element and a hermetic solar cell element of amorphous germanium and single crystal germanium.

Examples of the substrate constituting the solar battery module of the present embodiment include glass, acrylic resin, polycarbonate, polyester, and fluorine-containing resin.

The protective material (lower protective material) is a single or a plurality of sheets such as a metal or various thermoplastic resin films, and examples thereof include metals such as tin, aluminum, and stainless steel, inorganic materials such as glass, polyester, inorganic vapor-deposited polyester, and the like. One or more sheets of a fluororesin or a polyolefin. The solar cell sealing material of the present embodiment exhibits good adhesion to the substrate or the protective material.

When the solar cell sealing material of the present embodiment is used in combination with the solar cell element, the substrate, and the protective material as described above, it is possible to carry out the long-time use of the conventional ethylene-vinyl acetate copolymerization system. The cross-linking step of pressurization heating imparts long-term stability with practical adhesive strength and adhesive strength. However, from the viewpoint of imparting a firmer adhesive strength or adhesion strength stability, it is recommended to carry out a short-time pressure heating treatment.

The embodiments of the present invention have been described above with reference to the drawings, but these are examples of the invention, and various configurations other than the above may be employed.

 [Examples]  

Hereinafter, the present invention will be specifically described based on examples, but the present invention is not limited to the examples.

 (1) Evaluation method    [Optical characteristics]  

The film containing the resin composition for a laminated glass interlayer film obtained in the examples and the comparative examples was cut into a size of 120 mm × 75 mm × 0.4 mm. Next, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm (manufactured by Asahi Glass Co., Ltd., product name: float plate glass), and vacuum-retained at 140 ° C for 5 minutes by a vacuum laminator, and 0.1. MPa (gauge pressure) was pressed for 3 minutes to obtain a laminated glass. Further, the obtained laminated glass was cooled in a quenching manner for about 30 minutes to return to room temperature. Next, the haze of the obtained laminated glass was measured by a haze meter (manufactured by Murakami Color Co., Ltd., product name: haze meter HM150) based on JIS K7136. Next, the optical properties of the resin composition for a laminated glass interlayer film obtained in the examples and the comparative examples were evaluated based on the following criteria.

A (excellent): the haze is 0.6% or less

B (good): haze is more than 0.6% and less than 1.0%

C (bad): haze is 1.0% or more

 [Water resistance]  

The film containing the resin composition for a laminated glass interlayer film obtained in the examples and the comparative examples was cut into a size of 120 mm × 75 mm × 0.4 mm. Next, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm (manufactured by Asahi Glass Co., Ltd., product name: float plate glass), and vacuum-retained at 140 ° C for 5 minutes by a vacuum laminator, and 0.1. MPa (gauge pressure) was pressed for 3 minutes to obtain a laminated glass. Next, the obtained laminated glass was immersed in hot water at 90 ° C for 2 hours. Next, the length of the white turbid portion in the vertical direction was measured on the end face of the laminated glass at the white turbid portion generated at the end portion of the laminated glass. Next, the water resistance of the resin composition for laminated glass interlayer films obtained in the examples and the comparative examples was evaluated based on the following criteria.

A (excellent): The length of the white turbid portion is 1 mm or less.

B (good): The length of the white turbid portion is more than 1 mm and is 5 mm or less.

C (bad): The length of the white turbid portion is more than 5 mm.

 [Interlayer adhesion]  

The film containing the resin composition for a laminated glass interlayer film obtained in the examples and the comparative examples was cut into a size of 120 mm × 75 mm × 0.4 mm. Next, the obtained film was laminated on a non-tin surface of a glass plate of 120 mm × 75 mm × 3.9 mm (manufactured by Asahi Glass Co., Ltd., product name: soda lime glass), and vacuumed at 140 ° C for 3 minutes by a vacuum laminator. The film was pressed and pressed at 0.1 MPa (gauge pressure) for 30 minutes to adhere the film to the non-tin surface of the glass plate. Next, the film was pulled away from the glass plate at a stretching speed of 100 mm/min, and the maximum stress was calculated as the adhesion strength to the glass plate (N/15 mm). Next, the interlayer adhesion in the laminated glass of the resin composition for laminated glass interlayer films obtained in the examples and the comparative examples was evaluated based on the following criteria.

A (excellent): The adhesion strength to the glass plate is 20 N/15 mm or more.

B (good): The adhesion strength to the glass plate is 10 N/15 mm or more and less than 20 N/15 mm.

C (bad): The adhesion strength to the glass plate is less than 10N/15mm.

 (2) Materials  

Details of the materials used in the production of laminated glass are as follows.

 <Ionic polymer of ethylene-unsaturated carboxylic acid copolymer]  

IO-1: ionic polymer of ethylene-methacrylic acid copolymer (ethylene content: 81% by mass, methacrylic acid content: 19% by mass, metal ion: sodium ion, neutralization degree: 45%)

IO-2: ionic polymer of ethylene-methacrylic acid copolymer (ethylene content: 81% by mass, methacrylic acid content: 19% by mass, metal ion: zinc ion, degree of neutralization: 47%)

 <decane coupling agent>  

Si-C1: a decane coupling agent having an amine group (N-(2-aminoethyl)-3-aminopropylmethyldimethoxydecane, KBM-602, manufactured by Shin-Etsu Chemical Co., Ltd.)

Si-C2: a decane coupling agent having an amine group (3-aminopropyltrimethoxydecane, KBM-903, manufactured by Shin-Etsu Chemical Co., Ltd.)

Si-C3: a decane coupling agent having an amine group (N-(2-aminomethyl)-8-aminooctyltrimethoxydecane, KBM-6803, manufactured by Shin-Etsu Chemical Co., Ltd.)

Si-C4: a decane coupling agent having a glycidyl group (3-glycidoxypropyltrimethoxydecane, KBM-403, manufactured by Shin-Etsu Chemical Co., Ltd.)

 [Examples 1 to 7 and Comparative Examples 1 to 8]  

The ionic polymer of the ethylene-unsaturated carboxylic acid copolymer and the decane coupling agent were melt-kneaded at 160 ° C in the blending ratio shown in Tables 1 and 2 to obtain a resin composition for a laminated glass interlayer film, respectively.

Next, the obtained laminated glass interlayer film was subjected to extrusion molding under the conditions of a resin temperature of 160 ° C and a processing speed of 5 m/min at the exit of the extruder die, thereby obtaining a laminated glass having a thickness of 0.4 mm, respectively. membrane.

The above evaluation was performed on each of the obtained laminated glass interlayer films. The results obtained are shown in Tables 1 and 2, respectively.

The laminated glass interlayer films of Examples 1 to 7 were excellent in balance of optical properties, water resistance, interlayer adhesion, and appearance. On the other hand, the laminated glass interlayer films of Comparative Examples 1 to 8 had poor balance of optical properties, water resistance, interlayer adhesion, and appearance.

Further, the laminated glass interlayer film of Comparative Example 8 produced foreign matter on the surface thereof, and the appearance was poor. In other words, the resin composition for a laminated glass interlayer film of Comparative Example 8 was inferior in workability (film forming property). Therefore, the resin composition for a laminated glass interlayer film of Comparative Example 8 was not subjected to various evaluations.

The priority of the Japanese Patent Application No. 2016-167808, filed on Aug.

Claims (19)

 A resin composition for a laminated glass interlayer film for forming a laminated glass interlayer film comprising an ionic polymer (A) of an ethylene-unsaturated carboxylic acid copolymer, and a decane coupling agent having an amine group (B) The metal ion of the ionic polymer (A) constituting the above ethylene-unsaturated carboxylic acid-based copolymer contains a monovalent metal ion and a polyvalent metal ion.    The resin composition for a laminated glass intermediate film according to claim 1, wherein the polyvalent metal ion in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid-based copolymer is relative to the monovalent metal ion The ratio is 0.1 or more and 10 or less.    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the monovalent metal ion comprises one or more selected from the group consisting of lithium ions, potassium ions, sodium ions, silver ions, mercury ions, and copper ions. .    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the polyvalent metal ion comprises a calcium ion, a magnesium ion, a zinc ion, an aluminum ion, a cerium ion, a cerium ion, a cerium ion, a copper ion, or the like. One or more of cadmium ions, mercury ions, tin ions, lead ions, iron ions, cobalt ions, and nickel ions.    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer has a degree of neutralization of 5% or more and 95% or less.    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the haze measured by the following method is less than 1.0%, and the method comprises obtaining a resin composition comprising the above-mentioned laminated glass interlayer film of 120 mm × a film of 75 mm × 0.4 mm; secondly, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm, vacuum-held at 140 ° C for 5 minutes by a vacuum laminator, and at 0.1 MPa (gauge pressure) The pressing was performed for 3 minutes to obtain a laminated glass; secondly, the haze of the above laminated glass obtained by a haze meter was measured in accordance with JIS K7136.    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the length of the white turbid portion measured by the following method is 5 mm or less, and the method comprises obtaining a resin composition comprising the resin composition for the laminated glass intermediate film. a film of 75 mm × 0.4 mm; secondly, the obtained film was sandwiched by a glass plate of 120 mm × 75 mm × 3.2 mm, vacuum-held at 140 ° C for 5 minutes by a vacuum laminator, and 0.1 MPa (gauge pressure) Pressing for 3 minutes to obtain a laminated glass; secondly, immersing the obtained laminated glass in hot water at 90 ° C for 2 hours; secondly, measuring the white turbid portion generated at the end of the laminated glass, relative to the above The end face of the laminated glass has a length of the above-mentioned white turbid portion in the vertical direction.    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the adhesion strength to the glass plate measured by the following method is 10 N/15 mm or more, and the resin for containing the laminated glass interlayer film is obtained by a method a film of 120 mm × 75 mm × 0.4 mm of the composition; secondly, the obtained film was laminated on a non-tin surface of a glass plate of 120 mm × 75 mm × 3.9 mm, and vacuumed at 140 ° C for 3 minutes by a vacuum laminator Hold and press at 0.1 MPa (gauge pressure) for 30 minutes to adhere the film to the non-tin surface of the glass plate; secondly, pull the film away from the glass plate at a tensile speed of 100 mm/min to calculate the maximum Stress as the adhesion strength to the glass plate (N/15mm).    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer comprises: a valence metal of an ethylene-unsaturated carboxylic acid copolymer An ionomer polymer (A1) and a polyvalent metal ion ionomer (A2) of an ethylene-unsaturated carboxylic acid copolymer.    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the unsaturated carboxylic acid of the ionic polymer (A) constituting the ethylene-unsaturated carboxylic acid copolymer is selected from the group consisting of acrylic acid and methacrylic acid. At least one of them.    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein the decane coupling agent (B) having an amine group is used when the entire resin composition for a laminated glass interlayer film is 100% by mass. The content is 0.001% by mass or more and 5% by mass or less.    The resin composition for a laminated glass interlayer film according to claim 1 or 2, wherein in the ionic polymer (A) of the ethylene-unsaturated carboxylic acid copolymer, the ethylene-unsaturated carboxylic acid copolymer is copolymerized. When the total amount of the constituent units of the combination is 100% by mass, the constituent unit derived from the unsaturated carboxylic acid is 5% by mass or more and 35% by mass or less.    A laminated glass interlayer film comprising the resin composition for a laminated glass interlayer film according to any one of claims 1 to 12.    A laminated glass comprising: a laminated glass interlayer film of claim 13; and a transparent plate member provided on both surfaces of the laminated glass interlayer film.    The laminated glass according to claim 14, wherein the haze measured by a haze meter according to JIS K7136 is less than 1.0%.    The laminated glass according to claim 14 or 15, wherein the length of the white turbid portion measured by the following method is 5 mm or less, and the laminated glass is immersed in hot water at 90 ° C for 2 hours; secondly, The white turbid portion generated at the end portion of the laminated glass was measured for the length of the white turbid portion in the direction perpendicular to the end surface of the laminated glass.    A resin composition for a solar cell sealing material, which is used for forming a sealing material for a solar cell, comprising an ionic polymer (A) of an ethylene-unsaturated carboxylic acid copolymer, and a decane coupling agent having an amine group ( B) The metal ion of the ionic polymer (A) constituting the above ethylene-unsaturated carboxylic acid-based copolymer contains a monovalent metal ion and a polyvalent metal ion.    A solar cell sealing material comprising the resin composition for a solar cell encapsulant of claim 17.    A solar cell module comprising the solar cell encapsulant of claim 18 in the construction.