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Magnetic Recording Media

IP.com Disclosure Number: IPCOM000093412D
Original Publication Date: 1967-Sep-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Marchese, MA: AUTHOR

Abstract

Magnetic recording media normally consists of a polymeric binder composition, including particulate ferromagnetic material, supported on a substrate. In order to meet the requisites of durability, abrasion resistance, lightweight and temperature stability required by high-speed recording systems, the polymeric binder composition must be chosen with a high degree of care. Most commonly, a blend of polymeric materials is chosen in order to obtain different properties from the various materials.

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Magnetic Recording Media

Magnetic recording media normally consists of a polymeric binder composition, including particulate ferromagnetic material, supported on a substrate. In order to meet the requisites of durability, abrasion resistance, lightweight and temperature stability required by high-speed recording systems, the polymeric binder composition must be chosen with a high degree of care. Most commonly, a blend of polymeric materials is chosen in order to obtain different properties from the various materials.

An improved binder composition includes butadiene-styrene and curing agents such as melamine formaldehyde and urea formaldehyde resins. Catalysts, such as toluene sulfonic acid or ethyl acid phosphate, can be utilized with satisfaction in the system. In addition, dispersing agents, conductive material or lubricants can be utilized with the system.

Recording media produced from these compositions display superior wear characteristics in addition to being lightweight and stable.

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