In situ use of gelatin in the preparation of uniform ferrite par

Details In situ use of gelatin in the preparation of uniform ferrite par In situ use of gelatin in the preparation of uniform ferrite par

1990-06-04

1991-11-05

Stoll, Robert L.

Compositions

Preservative agents

Anti-corrosion

2523131, 252309, 252 6251, 42721335, 428403, B01J 1302, C09D 523

Patent

active

050629913

ABSTRACT:
A method is described for the preparation of uniform colloidal particles of ferrites, containing manganese (II), zinc(II), barium(II), iron(II), cobalt(II), or nickel(II), or a mixture of manganese(II) and zinc(II), at a relatively low temperature in the presence of a gelatin solution which acts as a support vehicle for the nucleation and growth of colloidal particles of metal oxide and for dispersion as separate single particles.

REFERENCES:
patent: 4965007 (1990-10-01), Yudelson
R.Bendaoud et al., Trans. On Magnetics, MAG-23, 3869-3873 (1987).
T. Sugimoto et al., J. Coll. Interface Sci., 74:227-243 (1980).
H. Tamura et al., J. Coll. Interface Sci., 90:100 (1982).
A. Regazzoni et al., Corrosion, 38:212 (1982).
A. Regazzoni et al., Colloids & Surfaces, 6:189 (1983).
E. Matijevic, J. Coll. & Interface Sci., 117:593 (1987).
P. H. Hess et al., J. App. Poly Sci., 10:1915-1927 (1966).

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