- 专利标题： A COATED GRANULE, AND A BITUMINOUS ROOFING MEMBRANE COMPRISING A PLURALITY OF THE COATED GRANULES
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申请号： US16488986申请日： 2018-02-23
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公开(公告)号： US20200002228A1公开(公告)日： 2020-01-02
- 发明人: Yves MADEC , Dominique HAUDEBERT
- 申请人： ICOPAL A/S
- 优先权： EP17158120.0 20170227
- 国际申请： PCT/EP2018/054565 WO 20180223
- 主分类号： C04B20/12
- IPC分类号： C04B20/12 ; C04B20/10 ; C04B20/00 ; C04B26/26 ; E04D5/12
摘要：
A coated granule that is suitable for use in a bituminous roofing membrane. The coated granule comprises: i) a granule, the granule comprising cristobalite, ii) a first coating on the surface of the granule, the coating comprising TiO2 in its anatase form and a binder, and iii) an oil barrier coating on the first coating, the oil barrier coating being a compound which will form a bond with a bituminous material, the oil barrier degrading upon exposure to the ultra violet radiation in sunlight and/or the action of rainwater to thereby expose the first coating.