- 专利标题: CONTROLLED TIME-RELEASE ALGAE RESISTANT ROOFING SYSTEM
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申请号: US13932983申请日: 2013-07-01
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公开(公告)号: US20130295155A1公开(公告)日: 2013-11-07
- 发明人: Husnu M. Kalkanoglu , Keith C. Hong , Joong Youn Kim , Ming Liang Shiao
- 申请人: Husnu M. Kalkanoglu , Keith C. Hong , Joong Youn Kim , Ming Liang Shiao
- 主分类号: E04D1/00
- IPC分类号: E04D1/00
摘要:
Time-release algae-resistant roofing granules have a base particle including an algaecide and an outer coating layer including another algaecide. The at least two algaecides are released over different predetermined periods. The outer layer protects the base particle from exposure to the environment for a predetermined period, then fails catastrophically so that the interior algaecide can be released.