Magnetic recording medium prepared from a specified magnetic pai

Details Magnetic recording medium prepared from a specified magnetic pai Magnetic recording medium prepared from a specified magnetic pai

1996-02-29

1998-05-12

Resan, Stevan A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428694B, 428900, 427128, 252 6254, G11B 0566

Patent

active

057502480

ABSTRACT:
A magnetic paint including magnetic powder, a binder and organic solvents is provided. The magnetic paint is prepared by first dispersing the magnetic powder and an amount of the binder in the range from about 20% to about 80% by weight based on the weight of the total binder in a poor solvent of the binder so as to obtain a first dispersion, dispersing after adding a good solvent of the binder and the rest of the binder into the first dispersion, and then dispersing the mixture so as to a second dispersion. About 25% by weight or more of the binder based on the weight of the total binder is adsorbed to the magnetic powder.

REFERENCES:
patent: 4724162 (1988-02-01), Saito et al.
R. F. Fedors, A Method For Estimating Both The Solubility Parameters and Molar Volumes of Liquids, Polymer Engineering and Science, vol. 14, No.2 (1974).

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