Magnetic recording medium lubricant consisting of an amine salt

Details Magnetic recording medium lubricant consisting of an amine salt Magnetic recording medium lubricant consisting of an amine salt

1989-12-14

1992-02-25

Cashion, Jr., Merrell C.

Stock material or miscellaneous articles

Composite

Of inorganic material

428694, 428900, 252 515A, 252 6254, G11B 500

Patent

active

050912690

ABSTRACT:
A magnetic recording medium containing an amine salt of carboxylic acid as the lubricant is disclosed. The amine salt of carboxylic acid means a usual amine salt of carboxylic acid, synthesized from carboxylic acid and an organic amine, an amine salt of perfluoroalkyl carboxylic acid, synthesized from perfluoroalkyl carboxylic acid and an organic amine, and a fluoroamine salt of perfluoroalkyl carboxylic acid, synthesized from a perfluoroalkyl carboxylic acid and a fluorine substituted organic amine. The amine salt of carboxylic acid may be contained in the magnetic layer of the magnetic recording medium or top coated on the magnetic layer. Such amine salt of carboxylic acid exhibits superior solubility in general-purpose solvents and superior lubricating properties to diminish the coefficient of friction. Such lubricating properties are not impaired under hostile conditions, such as low temperature.

REFERENCES:
patent: 4590129 (1986-05-01), Kaschig et al.
patent: 4613520 (1986-09-01), Dasgupta
patent: 4670319 (1987-06-01), Katoh et al.
patent: 4708906 (1987-11-01), Sekiya et al.
patent: 4755337 (1988-07-01), Takahashi et al.

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