发明名称 |
TON- UND/ODER BILDAUFZEICHNUNGSPLATTE AUS KUNSTSTOFF |
摘要 |
<p>A phonograph or video disc comprises at least one unsaturated nitrile copolymer and has therein an unsaturated nitrile content of from 40 to 90 percent by weight, and the disc exhibits a Clash-Berg flex temperature of from 50 DEG to 120 DEG C, an absorbed impact energy of at least 0.5kg.cm. when tested with a test specimen thereof of a 2-mm. thickness by a Dynstat impact test according to BS-1330-1946, and a Shore D hardness of from 75 to 95.</p> |
申请公布号 |
DE2726063(A1) |
申请公布日期 |
1977.12.15 |
申请号 |
DE19772726063 |
申请日期 |
1977.06.08 |
申请人 |
KUREHA KAGAKU KOGYO K.K. |
发明人 |
KANEKO,AKIRA;OHYA,MASAKI;SUZUKI,MASAYASU;KOBAYASHI,AKIO |
分类号 |
C08L33/18;G11B3/70;(IPC1-7):C08L33/18;C08L51/00 |
主分类号 |
C08L33/18 |
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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