发明名称 Optical recording medium and method of producing the same
摘要 An optical recording medium capable of suppressing warps arising during a long time use and a method of producing the same, which has the configuration of comprising a substrate 13, an optical recording layer 14 formed on the substrate 13 and a light transmitting protective film 17 formed on the optical recording layer 14, wherein the protective film 17 includes a polymer film 16 having a thermal shrinkage coefficient of 0.02% or less and an adhesive layer 15 for adhering the polymer film 16 to the optical recording layer 14. As the polymer film 16, those produced by a melt cast method, subjected to annealing processing in advance or having a residual solvent of 0.3% by weight or less in the film may be preferably used.
申请公布号 US7480928(B2) 申请公布日期 2009.01.20
申请号 US20050134496 申请日期 2005.05.20
申请人 SONY CORPORATION 发明人 YAMASAKI TAKESHI;YUKUMOTO TOMOMI;KASHIWAGI TOSHIYUKI
分类号 G11B7/24;G11B7/24056;G11B7/253;G11B7/2534;G11B7/254;G11B7/2542;G11B7/256;G11B7/258;G11B7/2585;G11B7/26 主分类号 G11B7/24
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