Interlayer film for laminated glass and laminated glass

Details Interlayer film for laminated glass and laminated glass Interlayer film for laminated glass and laminated glass

C - Chemistry, Metallurgy

03

C

C03C 27/12 (2006.01) C07D 209/24 (2006.01)

Patent

CA 2708523

It is an object of the present invention to provide an interlayer film for a laminated glass which can reduce transmittance of ultraviolet rays having wavelength of 380 to 400 nm and has excellent durability to light exposure while maintaining high visible light transmittance. The interlayer film for a laminated glass of the present invention is an interlayer film for a laminated glass, which comprises a thermoplastic resin and an indole compound having a structure represented by the following general Chemical Formula (1): [Chemical Formula 1] (see formula I) wherein R1 represents an alkyl group having 1 to 3 of carbon atoms, and R2 represents hydrogen, an alkyl group having 1 to 10 of carbon atoms, or an aralkyl group having 7 to 10 of carbon atoms.

L'invention concerne un film intermédiaire pour verres stratifiés, qui présente un facteur de transmission réduit pour la lumière ultraviolette dans une gamme de longueurs d'onde de 380-400 nm, tout en maintenant un facteur de transmission de la lumière visible élevé. Le film intermédiaire pour verres stratifiés a une excellente résistance à la lumière. L'invention concerne en particulier un film intermédiaire pour verres stratifiés, qui est caractérisé en ce qu'il contient une résine thermoplastique et un composé d'indole ayant une structure représentée par la formule générale (1). [Dans la formule générale (1), R1 représente un groupe alkyle ayant 1-3 atomes de carbone; et R2 représente un hydrogène, un groupe alkyle ayant 1-10 atomes de carbone ou un groupe aralkyle ayant 7-10 atomes de carbone.]

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