金融界 2025 年 5 月 17 日消息,国家知识产权局信息显示,塔吉特 GDL 公司申请一项名为“包含 PVB 的装饰表面覆盖物”的专利,公开号 CN119998113A,申请日期为 2023 年 10 月。
专利摘要显示,一种优选地不含 PVC 的表面覆盖物,该表面覆盖物包括芯层、装饰层或装饰层组件以及任选地背衬层。该芯层为刚性层,该刚性层拥有小于 10 度、优选地更小的变形角,如针对尺寸为 160mm×450mm 的矩形样品所测量的,该矩形样品被夹紧在水平悬伸位置中以便获得 160mm×300mm 突出部分,该变形角是在移除防止该突出部分在其自身重量的影响下变形的支撑件之后 30 秒测量的。芯层包含含有 PVB 的热塑性材料。该热塑性材料具有相对于 PVB 含量不超过 20 重量%、优选地更少的增塑剂含量。
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