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1.
公开(公告)号:US20200002228A1
公开(公告)日:2020-01-02
申请号:US16488986
申请日:2018-02-23
申请人: ICOPAL A/S
发明人: Yves MADEC , Dominique HAUDEBERT
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.