基本信息:
- 专利标题： ROOFING GRANULES INCLUDING BASE PARTICLES AND A COATING
- 专利标题（中）：包覆基质颗粒和涂层的花岗岩
- 申请号：US13629282 申请日：2012-09-27
- 公开(公告)号：US20130082221A1 公开(公告)日：2013-04-04
- 发明人： Rosiana Aguiar , Ming Liang Shiao , Bernard Nghiem , Regine Faure
- 申请人： Rosiana Aguiar , Ming Liang Shiao , Bernard Nghiem , Regine Faure
- 优先权： CA2776063 20120504
- 主分类号： G02B5/26
- IPC分类号： G02B5/26
摘要：
A roofing product can include roofing granules that can include substrates and a coating covering the substrates of the roofing granules. The substrates can be in the form of base particles, such as ceramic base particles or proppants, or base particles having a coating with an L* of at least approximately 55. In a particular aspect, a coating at an exposed surface of the roofing granule can include a compound that includes a metallic element; and nitrogen, carbon, or a combination of nitrogen and carbon. In another aspect, the coating has a relatively low L*, reasonably high solar reflectance, and good emissivity. The coating can be formed on a substrate using a fluidized bed. In a particular aspect, the coating can be performed as a chemical vapor deposition or a sol-gel process. If needed or desired, the roofing granules can be doped to achieve their desired properties.
摘要（中）：
屋顶产品可以包括屋顶颗粒，其可以包括基底和覆盖屋顶颗粒的基底的涂层。 基材可以是基础颗粒的形式，例如陶瓷基础颗粒或支撑剂，或具有L *至少为约55的涂层的基础颗粒。在一个特定方面，在屋顶颗粒的暴露表面的涂层 可以包括包含金属元素的化合物; 氮，碳或氮和碳的组合。 另一方面，涂层具有相对低的L *，相当高的太阳反射率和良好的发射率。 可以使用流化床在基材上形成涂层。 在特定方面，涂层可以作为化学气相沉积或溶胶 - 凝胶法进行。 如果需要或需要，屋顶颗粒可以被掺杂以实现其期望的性质。