Process for manufacturing porous tubes of high permeability made

Details Process for manufacturing porous tubes of high permeability made Process for manufacturing porous tubes of high permeability made

1992-01-17

1993-11-23

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

With carbonizing, then adding carbonizable material and...

264103, 264323, 264257, 4234471, 4234474, 425393, 425403, C04B 3552

Patent

active

052641627

ABSTRACT:
A process for manufacturing porous tubes made from carbon-carbon composite material by winding over a mandrel a non-woven sheet, made from a carbon fiber precursor, followed by compression and hot stabilisation of the assembly, with impregnation of the compressed sheet by a resin, followed by a thermal carbonisation treatment of the resin. Tubes are obtained having high permeability, small pore diameter and an inner surface of low rugosity. The tubes produced ar particularly suitable for the manufacture of filtration elements and of filtering membrane supports.

REFERENCES:
patent: 4776995 (1988-10-01), Nelson et al.
patent: 4944996 (1990-07-01), Bauer et al.
Patent Abstracts of Japan, vol. 9, No. 159 (E-326)(1882) Jul. 4, 1985, & JP-A-60 37 664 (Fuji Denki) Feb. 27, 1985.
Patent Abstracts of Japan, vol. 13, No. 575 (C-667)(3923) Dec. 19, 1989 & JP-A-1 239 061 (NKK Corp) Sep. 25, 1989.

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