| 发明名称 | Roofing granules comprising base particles that are sintered and have an initial reflectance of at least 0.25 | ||
| 摘要 | A roofing product can include roofing granules, wherein the roofing granules include base particles and a coating covering the base particles. The base particles are sintered. The coating has a depth of penetration into an outside surface of at least about 0.5% of an average radius of the base particles. In an embodiment, the coating has a depth of penetration into an outside surface of at least about 2.5 microns into the base particles. Further included is a process of forming the roofing granules. | ||
| 申请公布号 | US9422719(B2) | 申请公布日期 | 2016.08.23 |
| 申请号 | US201213729118 | 申请日期 | 2012.12.28 |
| 申请人 | CERTAINTEED CORPORATION | 发明人 | Shiao Ming Liang;Fuss Tihana;Millberg Jennifer A. |
| 分类号 | B32B5/16;E04D1/28;C09C3/06;E04D1/00 | 主分类号 | B32B5/16 |
| 代理机构 | Abel Law Group, LLP | 代理人 | Abel Law Group, LLP ;Plache Alexander H |
| 主权项 | 1. A roofing product comprising roofing granules, wherein the roofing granules comprise: base particles, wherein the base particles are sintered and have a solar reflectance of greater than about 0.25, as measured by ASTM C1549; and a coating covering the base particles, wherein the coating has a depth of penetration into an outside surface of the base particles of at least about 0.5% of an average radius of the base particles and wherein a solar reflectance of the coated base particles is decreased by about 0.20 or less, compared to the base particle without the coating. | ||
| 地址 | Malvern PA US | ||