发明授权
- 专利标题： Cushioning material for forming press
- 专利标题（中）： 成型压机用缓冲材料
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申请号： US08890882申请日： 1997-07-10
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公开(公告)号： US06514888B1公开(公告)日： 2003-02-04
- 发明人: Atsuo Tanaka , Akira Yoshida
- 申请人： Atsuo Tanaka , Akira Yoshida
- 优先权： JP6-226552 19940921
- 主分类号： B32B532
- IPC分类号： B32B532
摘要：
A cushioning material for forming press includes fiber material layers 31 and 32 superimposed with a bonding material layer 30 interposed, an upper rubber layer 33 positioned on an upper surface of one fiber material layer 31, a lower rubber layer 34 positioned on a lower surface of the other fiber material layer 32, an upper exudation preventing layer 35 positioned on an upper surface of the upper rubber layer 33, and a lower exudation preventing layer 36 positioned on a lower surface of the lower rubber layer 34.