发明名称 |
RESIN COMPOSITIONS FOR MOULDING BLACK SHIELDING MATERIALS |
摘要 |
Resin compositions for moulding black shielding materials of substantially black appearance, which when used as a black shielding casing or cover for electrical equipment prevent visibility of the interior, but shine red when a pilot lamp is on by virtue of transmission of visible light substantially only in the wavelength range 700 to 780 nm. |
申请公布号 |
EP0331276(A3) |
申请公布日期 |
1991.08.14 |
申请号 |
EP19890300098 |
申请日期 |
1989.01.06 |
申请人 |
NIPPON STEEL CHEMICAL CO. LTD. |
发明人 |
CHINEN, EITATSU;DAISHI, FUMIO |
分类号 |
G02B5/00;C08K5/00;C08K5/07;C08K5/08;G02B1/04 |
主分类号 |
G02B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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