发明名称 |
KUNSTSTOFFLINSE UND VERFAHREN ZU DEREN HERSTELLUNG. |
摘要 |
<p>A plastic lens is described which comprises a plastic substrate comprising a benzophenone derivative represented by following general formula (I): <CHEM> wherein R represents a linear or branched alkyl group having 2 to 12 carbon atoms or an alkoxyl group having 2 to 12 carbon atoms. <??>The lens exhibits no adverse effects on the heretofore exhibited property with respect to absorption of ultraviolet light having a wavelength up to about 400 nm and is yellowed to a smaller degree than that of conventional plastic lenses.</p> |
申请公布号 |
AT413614(T) |
申请公布日期 |
2008.11.15 |
申请号 |
AT20040018338T |
申请日期 |
2004.08.03 |
申请人 |
HOYA CORPORATION |
发明人 |
KOSAKA, MASAHISA;ITOH, SHINSUKE |
分类号 |
G02B1/04;G02C7/02;C08J7/04;C08J7/06;C08K5/07;C08K5/132;C08L29/06;C08L101/00;G02B7/10 |
主分类号 |
G02B1/04 |
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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