| 摘要 |
PROBLEM TO BE SOLVED: To provide an intermediate film for laminated glass, which has excellent penetration resistance particularly, excellent transparency, heat insulation property, sound insulation property, electromagnetic wave permeability and moisture resistance and further, proper adhesiveness to glass and capable of being obtained at a low cost and the laminated glass. SOLUTION: The intermediate film for the laminated glass has a laminated structure composed at least of 3 layers of 2 (A) layers and a (B) layer interposed between the (A) layers. The (A) layer contains a polyvinyl acetal resin (P) and a plasticizer (W) and the (B) layer contains a polyvinyl acetal resin (Q) and a plasticizer (X) and is harder than the (A) layer. COPYRIGHT: (C)2004,JPO
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