专利名称：Roofing granules with a decorative metallic
appearance
发明人：Ingo B. Joedicke申请号：US10342766申请日：20030115
公开号：US20030108668A1公开日：20030612
摘要：Colored roofing granules and methods for their preparations, having decorativemetallic appearance and enhanced stability against discoloration of color containing asilica-encapsulated metallic flake or colored lamellar effect pigment distributed in aninsolubilized alkali silicate coating.
申请人：ISP INVESTMENTS INC.
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