发明名称 Folie für beleuchtete Anzeigetafel
摘要 <p>A film for an illuminated signboard is described. The film is a semi-transparent film made of a stretched resin film containing a finely divided powder of a white inorganic material. The semi-transparent film satisfies the following requirements (1) to (4): (1) an opacity of from 40 % to 70 %; (2) a whiteness of from 80 % to 100 %; (3) a total light beam average reflectance of from 30 % to 60 %; and (4) a total light beam average transmittance of from 30 % to 70 %. <MATH></p>
申请公布号 DE69500522(D1) 申请公布日期 1997.09.11
申请号 DE1995600522 申请日期 1995.05.29
申请人 OJI YUKA GOSEISHI CO., LTD., TOKIO/TOKYO, JP 发明人 ASAZUMA, HARUMITSU, C/O OJI YUKA GOSEISHI CO., LTD, KASHIMA-GUN, IBARAKI, JP;KOYAMA, HIROSHI, C/O OJI YUKA GOSEISHI CO.,LTD, KASHIMA-GUN, IBARAKI, JP
分类号 B32B27/20;B29C55/02;B29K105/04;B29K105/16;B29L7/00;B29L9/00;B32B27/08;C08J5/18;G09F13/04;G09F13/16;(IPC1-7):B32B27/08 主分类号 B32B27/20
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