申请人:Sekisui Chemical Co., Ltd.
公开号:EP2025651A1
公开(公告)日:2009-02-18
The present invention provides an interlayer film for a laminated glass comprising a polyvinyl acetal resin, which is able to be easily adhered to a glass and is capable of constituting a laminated glass excellent in transparency, and also provides a laminated glass using the interlayer film. An interlayer film for a laminated glass comprising 100 parts by weight of a polyvinyl acetal resin and 60 to 100 parts by weight of a plasticizer, wherein 50 to 100 % by weight of the plasticizer is a diester compound represented by the formula (1) below.
In the formula (1), R1 and R2 are each an organic group of 5 to 10 carbon atoms, R3 is -CH2-CH2-, -CH2-CH(CH3)-, -CH2-CH2-CH2-or -CH2-CH2-CH2-CH2-, and n is an integer of 4 to 10.
本发明提供了一种用于夹层玻璃的中间膜,该中间膜由聚乙烯醇缩醛树脂组成,能够很容易地粘附到玻璃上,并能构成透明度极佳的夹层玻璃,本发明还提供了一种使用该中间膜的夹层玻璃。一种用于夹层玻璃的中间膜,由 100 重量份的聚乙烯醇缩醛树脂和 60 至 100 重量份的增塑剂组成,其中 50 至 100 重量份的增塑剂为下式(1)代表的二酯化合物。
在式 (1) 中,R1 和 R2 各为 5 至 10 个碳原子的有机基团,R3 为 -CH2-CH2-、-CH2-CH(CH3)-、-CH2-CH2-或 -CH2-CH2-CH2-,n 为 4 至 10 的整数。