发明授权
- 专利标题： Composite material and synthetic sleeper using the composite material
- 专利标题（中）： 复合材料和合成轨枕使用复合材料
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申请号： US09673692申请日： 2000-12-13
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公开(公告)号： US06605343B1公开(公告)日： 2003-08-12
- 发明人: Koji Motoi , Ryuichi Matsuo , Takeshi Muranaka , Takumi Murata
- 申请人： Koji Motoi , Ryuichi Matsuo , Takeshi Muranaka , Takumi Murata
- 优先权： JP11-043171 19990222; JP11-072296 19990317; JP11-106649 19990414; JP11-212306 19990727; JP11-216963 19990730; JP11-245318 19990831
- 主分类号： B32B2712
- IPC分类号： B32B2712
摘要：
A composite material comprising a core layer comprising filler and synthetic resin and containing the filler having a weight 0.7 times or more the product of volume of the core layer and bulk density of the filler; and a surface layer comprising a thermosetting resin reinforced by long fibers extending parallel in a longitudinal direction thereof, the surface layer being laminated on the core layer to cover at least one surface of the core layer with respect to a thickness direction thereof.
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