Porous fibrous structure and process for producing the same

Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Nonwoven fabric – Autogenously bonded nonwoven fabric

Reexamination Certificate

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C442S411000, C442S361000, C428S311110, C428S311510

Reexamination Certificate

active

10268810

ABSTRACT:
A novel porous fibrous structure containing from 10 to 100% by weight of wet heat bonding fibers, having cellular cavities in the fibrous structure of the fibers, in which a plurality of indefinite cellular cavities are present independently or in a state of partially connected in the inside of the fibrous structure, at least a portion of the fibers constituting the fibrous structure is heat bonding by the wet heat bonding fibers, and a process for producing such porous fibrous structure.

REFERENCES:
patent: 4246357 (1981-01-01), Hobes et al.
patent: 4269713 (1981-05-01), Yamashita et al.
patent: 5677360 (1997-10-01), Yamamori et al.
patent: 5766758 (1998-06-01), Hirakawa et al.
patent: 0 525 204 (1993-02-01), None
patent: 59-076959 (1984-02-01), None
patent: 60-028565 (1985-02-01), None
patent: WO 9824392 (1998-06-01), None
JP 63-235558 (English Translation) Sep. 30, 1988.
JP57-066200, Apr. 1982, Abstract Only.
U.S. Appl. No. 10/283,054, filed Oct. 30, 2002, Yamaguchi, et al.
U.S. Appl. No. 10/268,810, filed Oct. 11, 2002, Yamaguchi, et al.
JP63-235558, Mar. 1987, Abstract Only.

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