发明名称 |
HONEYCOMB FROM CONTROLLED POROSITY PAPER |
摘要 |
<p>This invention relates to an improved high performance honeycomb, methods for making the same, and articles including aerodynamic structures comprising the honeycomb, the honeycomb made with a paper that allows rapid impregnation of the honeycomb by structural resins while retarding excessive impregnation of node-line adhesives during manufacture. The honeycomb comprises a paper having a thickness of from 25 to 75 microns and a Gurley porosity of 2 seconds or greater and comprising high modulus fiber and thermoplastic binder having a melt point of from 180° C. to 300° C., wherein at least 30 percent by weight of the total amount of thermoplastic material is in the form of discrete film-like particles in the paper, the particles having a film thickness of about 0.1 to 5 micrometers and a minimum dimension perpendicular to that thickness of at least 30 micrometers.</p> |
申请公布号 |
EP2102411(B1) |
申请公布日期 |
2010.04.07 |
申请号 |
EP20070867774 |
申请日期 |
2007.12.14 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
LEVIT, MIKHAIL R.;KHAN, SUBHOTOSH;HENDREN, GARY LEE |
分类号 |
D21H13/00;B31D3/02;D21H27/00 |
主分类号 |
D21H13/00 |
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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