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    HYDROGENATED POLYMERS, RESIN COMPOSITION, AND PROCESS FOR PRODUCING SUBSTRATE FOR INFORMATION-RECORDING MEDIUM
    1.
    发明公开
    HYDROGENATED POLYMERS, RESIN COMPOSITION, AND PROCESS FOR PRODUCING SUBSTRATE FOR INFORMATION-RECORDING MEDIUM 有权
    树脂组合物含氢化聚合物及用于生产基层Standard数据记录介质

    公开(公告)号：EP1193274A1

    公开(公告)日：2002-04-03

    申请号：EP99973297.7

    申请日：1999-12-06

    申请人： NIPPON ZEON CO., LTD.

    发明人： SUZUKI, Teruhiko, Nippon Zeon Co., Ltd. ,  NAGAMUNE, Tsutomu, Nippon Zeon Co., Ltd. ,  KOHARA, Teiji, Nippon Zeon Co., Ltd. ,  MURAKAMI, Toshihide, Nippon Zeon Co., Ltd. ,  TAKAHASHI, Haruhiko, Nippon Zeon Co.,Ltd.

    IPC分类号： C08F8/04 ,  G11B7/24 ,  G11B7/26

    CPC分类号： G11B7/2533 ,  C08F8/04 ,  G11B5/7315 ,  G11B5/8404 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2535 ,  G11B7/2536 ,  G11B7/254 ,  G11B7/256 ,  G11B7/2578 ,  G11B7/2585 ,  G11B7/2595 ,  G11B7/263 ,  G11B11/10582 ,  G11B2007/24304 ,  C08F12/00

    摘要： A hydrogenated product of an aromatic vinyl polymer, wherein the hydrogenation rate of the aromatic rings thereof is at least 97%, a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is at most 2.0, the weight average molecular weight (Mw) is 100,000 to 300,000, and the content of a component having a molecular weight (M) of at most 10,000 is at most 2% by weight based on the total weight of the polymer; a hydrogenated product of an aromatic vinyl polymer, wherein the content of foreign matter having a particle diameter of at least 0.5 µm in the hydrogenated polymer is at most 3.0 x 10 4 particles/g; and a substrate for information recording media obtained by molding a resin material containing a hydrogenated product of an aromatic vinyl polymer, wherein the hydrogenation rate of the aromatic rings thereof is at least 97%, a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is at most 2.0, and the weight average molecular weight (Mw) is 100,000 to 300,000, and production process thereof.

    摘要翻译： 芳香族乙烯聚合物的速率，worin芳环的氢化物是至少97％，比率的重均分子量（Mw）与数均分子量之比（Mw / Mn）为氢化产物（Mn）为 至多2.0，重均分子量（Mw）为100,000至300,000，以及具有的分子量（M）的一个组分的至多10,000含量为至多2重量％，基于该聚合物的总重量; 芳香族乙烯基聚合物的氢化物，worin的具有氢化聚合物中的至少0.5微米的粒径的异物的含量为至多3.0×10 <4>粒/克; 和用于通过模制包含芳香族乙烯基聚合物的氢化物的树脂材料，worin芳族环的氢化率获得信息记录媒体用的基板上至少为97％，重均分子量之比（MW / Mn）为 量（Mw）与数均分子量（Mn）为2.0以下，并且重均分子量（Mw）为100000〜300000，以及它们的生产方法。