Abstract: The invention describes a method for making a composite panel and the product made by the method. The composite panel is made from a soft septum treated with a composition containing silane and an organic acid. The treated soft septum is adhesively bonded between two honeycomb panels, forming a sandwich of the septum between the two honeycomb panels.
Abstract: A method for making a composite panel, wherein the composite panel has a honeycomb core sandwiched between a pair of facing sheets, includes the steps of (a) coating the interior walls of the cells with a unexpanded thermo-expandable material; (b) bonding a pair of facing sheets to the opposite sides of the honeycomb core; and (c) heating the honeycomb core while the honeycomb core is sandwiched between the pair of facing sheets with sufficient heat to cause the thermo-expandable material to expand and to substantially fill the cells.
Type:
Grant
Filed:
January 31, 2007
Date of Patent:
November 30, 2010
Assignee:
M.C. Gill Corporation
Inventors:
Hongbin Shen, Phu Nguyen, Matthew Lowry