申请人:SOLUTIA INC.
公开号:US10354636B2
公开(公告)日:2019-07-16
A polymer interlayer comprising a layer comprising a poly(vinyl acetal) resin having a residual hydroxyl content and a residual acetate content, and a plasticizer, wherein the residual hydroxyl content, the residual acetate content and the plasticizer are selected such that the polymer interlayer has at least one glass transition temperature less than about 20° C. and a peak tan delta of greater than 1.29, and a glass panel having a configuration of 2.3-mm glass//interlayer//2.3-mm glass and at 20° C. has a transmission loss, TLw, of greater than 41 decibels as measured by weighted average sound transmission loss at 2000 to 8000 Hz, and a transmission loss, TLc, of greater than 38 decibels at the coincident frequency is disclosed.
一种聚合物中间膜,包含一层聚(乙烯基缩醛)树脂(具有残余羟基含量和残余乙酸酯含量)和一种增塑剂,其中残余羟基含量、残余乙酸酯含量和增塑剂的选择使聚合物中间膜具有至少一个小于约 20°C 的玻璃化转变温度,且峰值 tan delta 大于 1.29。本发明公开了一种玻璃面板,其结构为 2.3 毫米玻璃/中间膜/2.3 毫米玻璃,在 20 摄氏度时,按 2000 至 8000 赫兹的加权平均传声损耗测量,传声损耗 TLw 大于 41 分贝,在重合频率时,传声损耗 TLc 大于 38 分贝。