Water absorbent, comprising magnetic material and water absorben

Details Water absorbent, comprising magnetic material and water absorben Water absorbent, comprising magnetic material and water absorben

1991-07-03

1994-03-29

Willis, Jr., Prince

Compositions

Magnetic

With wax, bitumen, resin, or gum

252 6253, 44626, C04B 3504

Patent

active

052981797

ABSTRACT:
There is provided a water absorbent comprising a magnetic material and a highly water-absorbable resin. Said water absorbent is contacted with a moisture-containing powder and the water absorbent that has absorbed the moisture is then separated from the powder by means of a magnet, whereby the moisture content of the moisture-containing powder can be decreased. Said water absorbent is produced by forming a mixture composed of the highly water-absorbable resin, water and the magnetic material and then drying said mixture.

REFERENCES:
patent: 3591411 (1971-07-01), Faulhaber
patent: 4101435 (1978-07-01), Hasegawa
patent: 4211664 (1980-07-01), Dixon et al.
patent: 4320040 (1982-03-01), Fujita
patent: 4322219 (1982-03-01), Burns
patent: 4687748 (1987-08-01), Schroeder
patent: 4695393 (1987-09-01), Whitehead
patent: 4719027 (1988-01-01), Raistrick
patent: 4965007 (1990-10-01), Yudelson
patent: 5065822 (1991-11-01), Miller et al.
Hackh's Chemical Dictionary, 1969/1972, p. 543.

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