| 发明名称 |
SUBSTRATE FOR OPTICAL RECORDING MEDIA |
| 摘要 |
A substrate for optical recording media, said substrate being composed of a polyvinylacetal resin resulting from acetalization of polyvinylalcohol to a degree of at least 60 mole% with at least one acetalizing agent selected from the group consisting of aliphatic aldehydes, alicyclic aldehydes, aromatic aldehydes and heterocyclic aldehydes. |
| 申请公布号 |
CA1239727(A) |
申请公布日期 |
1988.07.26 |
| 申请号 |
CA19840467602 |
申请日期 |
1984.11.13 |
| 申请人 |
SEKISUI KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
NOMURA, SHIGERU;KINOSHITA, TAKEO;KADOYA, TETSUO |
| 分类号 |
C08F8/28;G11B7/2533;G11B7/2534;G11B7/258;G11B7/2585 |
主分类号 |
C08F8/28 |
| 代理机构 |
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代理人 |
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| 地址 |
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