Method of forming a magnetic recording and storage device having high abrasion resistance

Claim 1

The method for producing an abrasion and wear resistant magnetic recording and storage device comprising the steps of providing a magnetic recording and storage device, said device having a solid magnetic film chemically bonded to a substrate, said solid magnetic film being a material selected from the group consisting of magnetite, gamma ferric oxide, cobalt in combination with magnetite, and cobalt in combination with gamma ferric oxide, applying a film of an organic lubricating material over the surface of said magnetic film, said organic lubricating material selected from the group consisting of silicone based chlorosilane, polyethylene, polyoxyethylene monostearate, morpholine stearate, triethanolamine stearate and mixtures thereof, and removing any excess lubricating material from the surface of the magnetic film by polishing said film of lubricating material such that a film of less than 5000 A of lubricating material remains on the surface of said magnetic film.

Claim 2

The method for producing an abrasion and wear resistant magnetic recording and storage device comprising the steps of providing a magnetic recording and storage device, said device having a solid magnetic film chemically bonded to a substrate, said solid magnetic film being a material selected from the group consisting of magnetite, gamma ferric oxide, cobalt in combination with magnetite, and cobalt in combination with gamma ferric oxide, applying a film of an organic lubricating material over the surface of said magnetic film, said organic lubricating material selected from the group consisting of silicone based chlorosilane, polyethylene, polyoxyethylene monostearate, morpholine stearate, triethanolamine stearate and mixtures thereof, and removing any excess lubricating material from the surface of the magnetic film by polishing said film of lubricating material such that a film of less than 5000 A of lubricating material remains on the surface of said magnetic film.

Claim 4

A method for producing an abrasion and wear resistant magnetic recording and storage device comprising the steps of providing a magnetic recording and storage device, said device having a magnetic film chemically bonded to a substrate, said magnetic film being a material selected from the group consisting of magnetite, gamma ferric oxide, cobalt in combination with magnetite, and cobalt in combination with gamma ferric oxide, applying a film of lubricating material over the surface of said magnetic film by spraying the surface of said magnetic film with said lubricating material, said lubricating material consisting essentially of a 0.1% aqueous solution of polyoxyethylene monostearate, and removing any excess lubricating material from the surface of said magnetic film by polishing said film of lubricating material such that a film of less than 5000 A of lubricating material remains on the surface of said magnetic film.

Claim 5

A method for producing an abrasion and wear resistant magnetic recording and storage device comprising the steps of providing a magnetic recording and storage device, said device having a magnetic film chemically bonded to a substrate, said magnetic film being a material selected from the group consisting of magnetite, gamma ferric oxide, cobalt in combination with magnetite, and cobalt in combination with gamma ferric oxide, applying a film of lubricating material over the surface of said magnetic film by spraying the surface of said magnetic film with said lubricating material, said lubricating material consisting essentially of a 0.1% aqueous solution of polyoxyethylene monostearate, and removing any excess lubricating material from the surface of said magnetic film by polishing said film of lubricating material such that a film of less than 5000 A of lubricating material remains on the surface of said magnetic film.

Claim 7

A method for producing an abrasion and wear resistant magnetic recording and storage device comprising the steps of providing a magnetic recording and storage device, said device having a magnetic film chemically bonded to a substrate, said magnetic film selected from the group consisting of magnetite, gamma ferric oxide, obalt in combination with magnetite, and cobalt in combination with gamma ferric oxide, applying a film of lubricating material over the surface of said magnetic film by spraying the surface of said magnetic film with said lubricating material, said lubricating material consisting essentially of an aqueous emulsion of about 0.05% polyethylene having a molecular weight of about 2500, and about 0.025% polyoxyethylene monostearate containing about 40 moles of polyoxyethylene per mole stearate, and removing any excess lubricating material from the surface of said magnetic film by polishing said film of lubricating material such that a film of less than 5000 A of lubricating material remains on the surface of said magnetic film.

Claim 8

A method for producing an abrasion and wear resistant magnetic recording and storage device comprising the steps of providing a magnetic recording and storage device, said device having a magnetic film chemically bonded to a substrate, said magnetic film selected from the group consisting of magnetite, gamma ferric oxide, obalt in combination with magnetite, and cobalt in combination with gamma ferric oxide, applying a film of lubricating material over the surface of said magnetic film by spraying the surface of said magnetic film with said lubricating material, said lubricating material consisting essentially of an aqueous emulsion of about 0.05% polyethylene having a molecular weight of about 2500, and about 0.025% polyoxyethylene monostearate containing about 40 moles of polyoxyethylene per mole stearate, and removing any excess lubricating material from the surface of said magnetic film by polishing said film of lubricating material such that a film of less than 5000 A of lubricating material remains on the surface of said magnetic film.