发明名称 Photochromic molding compositions and articles produced therefrom
摘要 A polyamide molding composition is described, comprising at least one transparent polyesteramide in a proportion by weight of from 70 to 99.99% by weight; at least one further polymer in a proportion by weight of from 0 to 30% by weight; at least one photochromic dye in a proportion by weight of from 0.01 to 2% by weight; and also optionally further dyes and/or additives. The invention further encompasses articles manufactured therefrom, e.g. foils, for the coating of photochromic ophthalmic lenses, or the like.
申请公布号 US7993755(B2) 申请公布日期 2011.08.09
申请号 US20080174430 申请日期 2008.07.16
申请人 EMS-PATENT AG 发明人 HALA RALF;HOFFMANN BOTHO;LAMBERTS NIKOLAI
分类号 C08G69/26 主分类号 C08G69/26
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