LIGHT-BLOCKING ARTICLES WITH SPACER FUNCTIONAL COMPOSITION

A foamed, opacifying element useful as a light-blocking article has a substrate; an opacifying layer disposed on the substrate, and a functional composition disposed over the opacifying layer. The functional composition comprises: (i) glass particles such as hollow glass particles. The presence of the glass particles provides additional heat absorption for the foamed, opacifying elements that can be formed into light-blocking materials. 可用作挡光制品的泡沫不透明元件具有基材；布置在基材上的不透明层；和布置在不透明层上面的功能组合物。所述功能组合物包含：(i)玻璃颗粒、例如中空玻璃颗粒。所述玻璃颗粒的存在为可形成为挡光材料的泡沫不透明元件提供额外的吸热。