| 发明名称 |
Rubber for hot press cushioning pad, manufacturing method thereof, hot press cushioning pad and method of manufacturing printed circuit board |
| 摘要 |
<p>A value of loss tangent (tan delta ) of a rubber in accordance with dynamic viscoelasticity measurement is set to be 0.04 or lower, when temperature condition is set to press temperature of hot press and frequency condition is set to a time period corresponding to one press cycle of the hot press. Such a rubber is used as a hot press cushioning pad (3). <IMAGE></p> |
| 申请公布号 |
EP0978528(B1) |
申请公布日期 |
2004.05.12 |
| 申请号 |
EP19990115536 |
申请日期 |
1999.08.05 |
| 申请人 |
YAMAUCHI CORPORATION |
发明人 |
TANAKA, ATSUO;YOSHIDA, AKIRA |
| 分类号 |
B29C43/20;B29C35/02;B29C43/10;B29C43/32;B29C43/36;B29K27/12;B29L31/34;B30B15/06;B32B25/04;C08K5/13;H05K3/28;(IPC1-7):C08K5/00;C08L27/12;B32B27/28;H05K3/00 |
主分类号 |
B29C43/20 |
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