Dispersant composition for magnetic media

Details Dispersant composition for magnetic media Dispersant composition for magnetic media

1986-07-14

1987-02-03

Demers, Arthur P.

Compositions

Magnetic

With wax, bitumen, resin, or gum

252351, 25238922, 25238931, 427128, 428694, 428900, 556405, C04B 3504, H01F 126, C07F 902

Patent

active

046407901

ABSTRACT:
An improved dispersant for magnetic media, comprising the reaction product of a phosphate ester and an alkali siliconate silylalkylphosphonate, is described. The dispersant can provide comparable magnetic properties in magnetic media at lower levels than are necessary for currently employed phosphate ester dispersants. A magnetic coating composition and a process for producing magnetic recording media, based on said improved dispersant, are also disclosed.

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Galashina et al., Clasticheskiye Massey, #4(1962), pp. 16-19.

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