发明名称 |
METHOD FOR MAKING OPTICALLY READABLE MEDIA CONTAINING EMBOSSED INFORMATION |
摘要 |
A method for making an optically readable medium containing a relief information track comprising the sequential steps of (a) laminating a dry photohardenable film to a surface of a transparent dimensionally stable substrate; (b) embossing the exposed surface of the photohardenable film with the relief information track by applying thereto under pressure a stamper die containing a reverse relief image of the information track; (c) passing actinic radiation through the transparent substrate and the photohardenable film to effect hardening of the photohardenable film while it is contact with the stamper die; and (d) separating the stamper die from the embossed photohardened film; The embossed film of the medium is made reflective by applying a reflective layer to either the photohardenable film prior to embossing or to the photohardened film subsequent to embossing. |
申请公布号 |
EP0405582(A3) |
申请公布日期 |
1992.07.08 |
申请号 |
EP19900112462 |
申请日期 |
1990.06.29 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
ZAGER, STEPHEN A.;SHVARTSMAN, FELIX P. |
分类号 |
B29C59/02;B29D17/00;B29K69/00;B29L9/00;B29L17/00;G11B7/26;(IPC1-7):G11B7/26 |
主分类号 |
B29C59/02 |
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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