发明名称 LIGHT-DIFFUSIVE METHACRYLIC RESIN MULTI-LAYER SHEET
摘要 PROBLEM TO BE SOLVED: To provide a methacrylic resin sheet of a multi-layer structure which has a high-grade feel with depth of the light-diffusive layer through a transparent layer and excellent light-diffusive performance and light transmissivity. SOLUTION: The methacrylic resin multi-layer sheet is composed of the following three layers. The first layer has a total light transmissivity of 3-80%, a haze of≥90% and a thickness of 2-10 mm. The second layer lies between the first and second layers and has a total light transmissivity of 30-90% which is higher than that of the first layer, a haze of≥80% which is lower than that of the first layer and a thickness of 1-3 mm. The third layer has a total light transmissivity of≥90%, a haze of≤1% and a thickness of 1-10 mm. COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008093971(A) 申请公布日期 2008.04.24
申请号 JP20060278509 申请日期 2006.10.12
申请人 SUMITOMO CHEMICAL CO LTD 发明人 MIZUMOTO TOMOHIRO;ISHII YUKIMASA
分类号 B32B27/30;G02B5/02 主分类号 B32B27/30
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