Invention Grant
- Patent Title: Honeycomb from controlled porosity paper
- Patent Title (中): 来自受控孔隙纸的蜂窝
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Application No.: US11640045Application Date: 2006-12-15
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Publication No.: US07771811B2Publication Date: 2010-08-10
- Inventor: Mikhail R. Levit , Subhotosh Khan , Gary Lee Hendren
- Applicant: Mikhail R. Levit , Subhotosh Khan , Gary Lee Hendren
- Applicant Address: US DE Wilmington
- Assignee: E.I. du Pont de Nemours and Company
- Current Assignee: E.I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: B32B3/12
- IPC: B32B3/12

Abstract:
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.
Public/Granted literature
- US20080145601A1 Honeycomb from controlled porosity paper Public/Granted day:2008-06-19
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