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 Gurley porosity of 2 seconds or greater and comprising high modulus fiber and thermoplastic binder having a melt point of from 120° C to 350° 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> |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY;LEVIT, MIKHAIL, R.;KHAN, SUBHOTOSH;HENDREN, GARY, LEE |
发明人 |
LEVIT, MIKHAIL, R.;KHAN, SUBHOTOSH;HENDREN, GARY, LEE |