Process for the preparation of magnetic beads of vinylaromatic p

Details Process for the preparation of magnetic beads of vinylaromatic p Process for the preparation of magnetic beads of vinylaromatic p

1980-08-15

1982-07-13

Edmundson, F.

Compositions

Magnetic

With wax, bitumen, resin, or gum

252 6253, 430137, 524431, H01F 100, H01F 128, C08J 300

Patent

active

043393373

ABSTRACT:
Process for the preparation of magnetic beads of vinylaromatic polymers, which comprises dispersing a magnetic filler in a solution of a homo- or co-polymer in a vinylaromatic compound alone or in mixture with a co-polymerizable monomer, putting the resulting dispersion into suspension in water and polymerizing the monomer or monomers, and use of said magnetic beads in the paints, inks, reprography and in biology.

REFERENCES:
patent: 3042616 (1962-07-01), Brown
patent: 4108786 (1978-08-01), Takayama
patent: 4157323 (1979-06-01), Yen et al.
patent: 4264700 (1981-04-01), Bayley

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