发明名称 |
OPTICAL DISK SUBSTRATE AND ITS PRODUCTION |
摘要 |
PURPOSE:To prevent thermal sagging by using a (meth)allyl (meth)acrylate as an essential component of a raw material for a substrate resin and crosslinking and polymerizing the same with a (meth)acrylate. CONSTITUTION:The substrate resin is constituted of the resin formed by using the (meth)allyl (meth)acrylate as the essential component of the raw material and crosslinking and polymerizing the same with the (meth)acrylate. The chemical formula of the (meth)alloy (meth)acrylate is expressed by formula. The proportion at which the (meth)allyl (meth)acrylate occupies in the compd. is not particularly limited and is preferably >=50wt% by the total weight of the (meth)allyl (meth)acrylate and (meth)acrylate in terms of thermal deformation resistance. The (meth)allyl (meth)acrylate is more preferably compounded at >=70wt%. The optical disk having the thermal sagging resistance and excellent optical characteristics is thus obtd. |
申请公布号 |
JPS61289556(A) |
申请公布日期 |
1986.12.19 |
申请号 |
JP19850130152 |
申请日期 |
1985.06.15 |
申请人 |
MATSUSHITA ELECTRIC WORKS LTD |
发明人 |
HEIUCHI TAKAHIRO;IKENO SHINOBU;USUI HIROAKI;NAKAMURA MASASHI |
分类号 |
G11B7/24;C08F20/00;C08F20/10;C08F220/12;C08F220/40;C08J3/28;G02B1/04;G11B7/253;G11B7/26 |
主分类号 |
G11B7/24 |
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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