HONEYCOMB CORE BASED ON CARBON FIBER PAPER AND ARTICLES MADE FROM SAME

Title:

HONEYCOMB CORE BASED ON CARBON FIBER PAPER AND ARTICLES MADE FROM SAME

Document Type and Number:

WIPO Patent Application WO/2011/062980

Kind Code:

A3

Abstract:

This invention relates to a honeycomb core made from paper comprising 20-85 weight percent of carbon fiber floc. The carbon fibers have a non-round cross sectional aspect ratio of at least 1.5:1. The paper has a fiber volume fraction of at least 35%. The arithmetic mean length of the carbon fibers is at least 0.5 mm. and a length weighted mean length of at least 0.9 mm.

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Inventors:

LEVIT MIKHAIL R (US)
KAWKA DARIUSZ WLODZIMIERZ (US)

Application Number:

PCT/US2010/057019

Publication Date:

July 14, 2011

Filing Date:

November 17, 2010

Export Citation:

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Assignee:

DU PONT (US)
LEVIT MIKHAIL R (US)
KAWKA DARIUSZ WLODZIMIERZ (US)

International Classes:

B32B5/26; B32B3/12; B32B27/04; B32B27/30; B32B27/38; B32B27/42; B32B29/08; D21H13/50

Foreign References:

US20080199369A1	2008-08-21
US5026456A	1991-06-25
US5139843A	1992-08-18

Other References:

DATABASE WPI Week 199435, Derwent World Patents Index; AN 1994-283007, XP002634261
DATABASE WPI Week 200453, Derwent World Patents Index; AN 2004-546827, XP002634263
DATABASE WPI Week 197915, Derwent World Patents Index; AN 1979-28409B, XP002634306

Attorney, Agent or Firm:

GOLIAN, Andrew, G. (Legal Patent Records Center4417 Lancaster Pik, Wilmington Delaware, US)

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