Heat ray shielding interlayer film for laminated glass, and heat ray shielding laminated glass

摘要

PPROBLEM TO BE SOLVED: To provide an intermediate film for a heat ray shielding laminate glass, the film suppressing degradation by discoloration and having excellent transparency, even when the film contains a (double) tungsten oxide as a heat ray shielding agent. PSOLUTION: The intermediate film for a heat ray shielding laminated glass includes a heat ray shielding layer 110 containing a (double) tungsten oxide interposed by an adhesive resin layer 120A in a light-receiving face side and an adhesive resin layer 120B in a back face side, and is characterized in that: the adhesive resin layer 120A in the light-receiving face side and the adhesive resin layer 120B in the back face side contain an adhesive resin and a UV absorbent; the amount of the UV absorbent in the adhesive resin layer 120A in the light-receiving face side is 0.2 to 1.5 parts by mass with respect to 100 parts by mass of the adhesive resin; the amount of the UV absorbent in the adhesive resin layer 120B in the back face side is 0.1 to 1.4 parts by mass with respect to 100 parts by mass of the adhesive resin; and a difference between the amount of the UV absorbent in the adhesive resin layer in the light-receiving face side and the amount of the UV absorbent in the adhesive resin layer in the back face side is 0.1 to 0.3. PCOPYRIGHT: (C)2011,JPO&INPIT