Invention Grant
- Patent Title: Algae resistant roofing granules with controlled algaecide leaching rates, algae resistant shingles, and process for producing same
- Patent Title (中): 具有控制除藻剂浸出率，耐藻花叶片的藻类抗性屋顶颗粒及其生产方法
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Application No.: US10600809Application Date: 2003-06-20
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Publication No.: US07811630B2Publication Date: 2010-10-12
- Inventor: Keith C. Hong , Husnu M. Kalkanoglu , Ming L. Shiao , Anne B. Hardy , James A. Salvatore , Andrew G. Johnson, Jr.
- Applicant: Keith C. Hong , Husnu M. Kalkanoglu , Ming L. Shiao , Anne B. Hardy , James A. Salvatore , Andrew G. Johnson, Jr.
- Applicant Address: US PA Valley Forge
- Assignee: CertainTeed Corporation
- Current Assignee: CertainTeed Corporation
- Current Assignee Address: US PA Valley Forge
- Agency: Paul & Paul
- Main IPC: B05D7/00
- IPC: B05D7/00
Abstract:
Algae-resistant roofing granules are formed by extruding a mixture of mineral particles and a binder to form porous granule bodies, and algaecide is distributed in the pores. Release of the algaecide is controlled by the structure of the granules.
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