发明名称 |
Rigid fiberboard. |
摘要 |
<p>A rigid fiberboard suitable as a replacement for the natural woods presently used for the manufacture of pencils is provided. The fiberboard essentially comprises a fiber network together with a filler and binder. A lubricant is added to improve the sharpening characteristics of the fiberboard, and dimensional stability is preserved by incorporating a water proofing agent to minimize the absorption of water by the fiber network.</p> |
申请公布号 |
EP0518018(A1) |
申请公布日期 |
1992.12.16 |
申请号 |
EP19920105939 |
申请日期 |
1992.04.06 |
申请人 |
LYDALL, INC. |
发明人 |
MAINE, RICHARD L.;COOK, JOSEPH W. |
分类号 |
B43K19/16;B27N3/04;B43K19/02;B43K19/14;C08J5/04 |
主分类号 |
B43K19/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|