发明名称 |
Information recording medium having recording layer with organic polymer and dye contained therein |
摘要 |
An information recording medium has a recording layer which comprises a composition containing: I) at least one organic polymer selected from the group consisting of: (a) conjugated polymers whose conformations change by thermal energy, for example, polythiophene, and (b) polymers containing as a component a diene monomer and/or an aromatic-ring-containing vinyl monomer, for example, polystyrene; and II) a dye having light-absorbing ability, for example, naphthalocyanine. Despite the recording layer is of the organic type that features non-toxicity and low manufacturing cost as advantages, the recording layer makes it possible to produce a rewritable optical disc which can be recorded by a semiconductor laser (830,780 nm) employed widely.
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申请公布号 |
US5648135(A) |
申请公布日期 |
1997.07.15 |
申请号 |
US19950487129 |
申请日期 |
1995.06.07 |
申请人 |
HITACHI CHEMICAL COMPANY, LTD. |
发明人 |
WATANABE, ITSUO;KUWANO, ATSUSHI;TAKETATSU, JUN;TAKANE, NOBUAKI;YAMADA, MITSUO;TAI, SEIJI |
分类号 |
G11B7/0045;G11B7/0055;G11B7/24;G11B7/244;G11B7/245;G11B7/247;G11B7/2472;G11B7/248;G11B7/249;G11B7/253;G11B7/2533;G11B7/2534;G11B7/258;G11B7/2585;G11B7/259;G11B7/2595;(IPC1-7):B32B3/00 |
主分类号 |
G11B7/0045 |
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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