Composite panels

a technology of composite panels and foam, applied in the field of composite panels, can solve the problems of poor compressive strength of balsa, high cost, environmental concerns, etc., and achieve the effect of improving the bonding strength of honeycomb and foam, reducing the surface area of honeycomb, and reducing the resistance of honeycomb
US20070256379A1Inactive Publication Date: 2007-11-08EDWARDS CHRISTOPHER M
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
EDWARDS CHRISTOPHER M
Publication Date
2007-11-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

A composite panel consisting of outer skins and an inner core consisting of a foamed polymer, wherein the structure or properties of the inner core are anisotropic. The composite panel can be made by applying external heat and pressure to melt a skin of thermoplastic composite and an initial thickness of a thermoplastic core which has anisotropic properties causing the skin and core to fuse together followed by cooling the fused structure. The composite panel can be made by applying external heat and pressure to melt layers of a thermoplastic adhesive positioned between the outer skins and an inner core consisting of a foamed polymer, wherein the structure or properties of the inner core are anisotropic, so that the skins are bonded to the core by the melted layers of the thermoplastic adhesive followed by cooling the bonded structure.
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Description

[0001] This application claims the benefit of priority to U.S. Provisional Patent Application Ser. No. 60 / 798,628 filed May 8, 2006.BACKGROUND OF THE INVENTION

[0002] The instant application relates to sandwich panels articles and methods for their manufacture and more specifically, the instant application relates to sandwich panels with low density cores and methods for their manufacture.

[0003] Sandwich panels are well known and widely used in many applications for the combination of mechanical properties and low weight. For large structures such as buildings, boats, containers, truck boxes and the like, sandwich panels consisting of surface skins of relatively thin rigid material sandwiching a low density core are often used. These sandwich panels are particularly advantageous because the skin core structure is extremely efficient at resisting loads, especially bending loads. The reason for this is that when a bending load is applied to a structure the outer portions of the structure ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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