Honeycomb core

Details Honeycomb core Honeycomb core

1991-08-30

1992-12-15

Epstein, Henry F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

428367, 428408, 428910, B32B 312

Patent

active

051716208

ABSTRACT:
A honeycomb core comprising honeycomb ribbons individually obtained by laminating a plurality of sheets of paper comprising short fibers oriented in a specific direction with an orientation degree of 50% or more, wherein the term "orientation degree" means the proportion of the number of fibers oriented at an angle in the range of .+-.5.degree. with the specific direction to the total number of fibers which is expressed in percentage. The honeycomb core of the present invention is lighter in weight than conventional honeycomb cores and has a high strength properties in a specific direction.

REFERENCES:
patent: 3673058 (1972-06-01), Jackson et al.
patent: 4016022 (1977-04-01), Browning et al.
patent: 4346541 (1982-08-01), Schmitt
patent: 4713276 (1987-12-01), Gotoh et al.
patent: 4756943 (1988-07-01), Koletzko
patent: 5024710 (1991-06-01), Sheaffer et al.
patent: 5080943 (1992-01-01), Chulpsa
patent: 5096519 (1992-03-01), Kawakubo et al.
33rd. International SAMPE Symposium and Exhibition, vol. 33, pp. 73-77 (1988)--T. N. Bitzer adn J. I. Castillo, "Graphite Honeycomb".

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