Interlayer film for laminated glass and laminated glass

An interlayer film for laminated glass comprising:

• a thermoplastic resin;
• a carboxylic acid;
• and
• at least one metal selected from the group consisting of an alkali metal and an alkaline earth metal,
• a molar concentration A is more than 0.35 mol/m3 and less than 1.00 mol/m3, and
• a carboxylic acid isolation rate (2) represented by B/A×100 is 40% or less,
• wherein A is a molar concentration per unit volume (mol/m3) of the alkali metal and the alkaline earth metal in the interlayer film for laminated glass, measured by ICP emission spectrophotometry;
• and
• B is a molar concentration per unit volume (mol/m3) of the carboxylic acid in the interlayer film for laminated glass, measured by gas chromatography mass spectrometry (GC-MS).

An interlayer film for laminated glass comprising:

• a thermoplastic resin;
• a carboxylic acid;
• at least one metal selected from the group consisting of an alkali metal and an alkaline earth metal;
• and
• 2-ethylhexanoic acid,
• a molar concentration A is more than 0.35 mol/m3 and less than 1.00 mol/m3, and
• a carboxylic acid isolation ratio (3) represented by (1−D′/A)×100 is 40% or less,
• wherein A is a molar concentration per unit volume (mol/m3) of the alkali metal and the alkaline earth metal in the interlayer film for laminated glass, measured by ICP emission spectrophotometry;
• D′ is a molar concentration per unit volume (mol/m3) of the carboxylic acid, obtained by subtracting the molar concentration B′ from the molar concentration Y′;
• B′ is a molar concentration per unit volume (mol/m3) of the carboxylic acid other than 2-ethylhexanoic acid in the interlayer film for laminated glass, measured by gas chromatography mass spectrometry (GC-MS);
• and
• Y′ is a molar concentration per unit volume (mol/m3) of the carboxylic acid other than 2-ethylhexanoic acid in the interlayer film for laminated glass, measured by gas chromatography mass spectrometry (GC-MS) after 9 mL of THF and 0.2 mL of 1 mol/L hydrochloric acid are added to 0.5 g of the interlayer film for laminated glass to be left at 23° C. for 12 hours.

An interlayer film for laminated glass comprising:

• a thermoplastic resin;
• a carboxylic acid;
• at least one metal selected from the group consisting of an alkali metal and an alkaline earth metal;
• and
• 2-ethylhexanoic acid,
• a molar concentration A being more than 0.35 mol/m3 and less than 1.00 mol/m3, and
• a carboxylic acid isolation rate (4) represented by B′/A x 100 being 40% or less,
• wherein A is a molar concentration per unit volume (mol/m3) of the alkali metal and the alkaline earth metal in the interlayer film for laminated glass, measured by ICP emission spectrophotometry;
• and
• B′ is a molar concentration per unit volume (mol/m3) of the carboxylic acid other than 2-ethylhexanoic acid in the interlayer film for laminated glass, measured by gas chromatography mass spectrometry (GC-MS).