An interlayer film and laminated glass using the same

Details An interlayer film and laminated glass using the same An interlayer film and laminated glass using the same

C - Chemistry, Metallurgy

08

L

C08L 31/04 (2006.01) B32B 17/10 (2006.01) C03C 27/12 (2006.01) C08J 5/18 (2006.01) C08L 23/08 (2006.01) C08L 33/10 (2006.01) C09J 123/08 (2006.01)

Patent

CA 2111621

A novel interlayer film is provided herein. The film comprises up to 100 parts by weight of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 5 to 50 wt%, and/or up to 100 parts by weight of an ethylene- alkyl(meth)acrylate copolymer having an alkyl(meth)acrylate content of 5 to 50 wt%. The film also includes 0.01 to 4 parts by weight of a transparency-improvement agent. Such transparency-improvement agent may be a condensation reaction product of polyhydric alcohol (5 to 12-hydric) and twice as many equivalents of benzaldehyde, or its derivative, or it may be a calixarene compound represented by Formula (II) Image Finally, it contains 0.01 to 4 parts by weight of a silane coupling agent which contains at least one type of an amino group, a glycidyl group and a mercapto group. Laminated glass may be formed by laminating such interlayer film between two transparent plates, e.g., glass plates, or synthetic resin plates.

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