Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1997-02-06
1998-07-21
Edwards, Newton
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428395, 447167, D02G 300
Patent
active
057833044
ABSTRACT:
Disclosed are acidic or basic gas absorptive fiber having both a degree of acidic gas absorption of 70% or higher and a degree of basic gas absorption of 80% or higher, and also fabric comprising the fiber. The fiber and fabric, after having absorbed acidic and basic gases, can easily be restored to its original condition if they are exposed to clean air. The fiber is preferably crosslinked acrylic fiber, which has a specific increase in its nitrogen content resulting from crosslinking with hydrazine, a specific amount of carboxyl groups resulting from modification with nitrile groups, a specific ratio of free carboxyl groups to all carboxyl groups existing therein, and a specific equilibrated pH in water, and which is prepared from acrylic fiber through crosslinking with hydrazine, hydrolysis, and conversion of carboxyl groups therein into metal carboxylate groups. The fiber and fabric are durable to cycle use.
REFERENCES:
patent: 5109028 (1992-04-01), Tanaka et al.
patent: 5292822 (1994-03-01), Tanaka et al.
Database WPI, Section Ch, Week 9623, Derwent Publications Ltd., London, GB; Class A14, AN 96-228776 XP002046957 & RU 2 044 748 C (Khimvolokno Sci Prodn Assoc), Sep. 27, 1995.
Database WPI, Section Ch, Derwent Publications Ltd., London, GB; Class A14, AN 72-73385T XP002019467 & SU 332 148 A (Dorokhina Is Zverev MP BA).
Nakajima Shigeru
Wakitani Mitsuru
Edwards Newton
Japan Exlan Company Limited
LandOfFree
Acidic or basic gas absorptive fiber and fabric does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acidic or basic gas absorptive fiber and fabric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acidic or basic gas absorptive fiber and fabric will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1645055