Browse Prior Art Database

Magnetic Recording Media

IP.com Disclosure Number: IPCOM000091698D
Original Publication Date: 1968-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 18K

Publishing Venue

IBM

Related People

Whitney, ML: 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, light weight, and temperature stability required by high-spaced recording systems, the polymeric binder composition must be chosen with a high degree of care.

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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, light weight, and temperature stability required by high-spaced recording systems, the polymeric binder composition must be chosen with a high degree of care.

One group of compositions for magnetic recording media includes cured or uncured fluoroelastomers. Examples of such fluoroelastomers are VITON A*, VITON B*, and VITON A/HV* which have this general formula.

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Primary amines, such as triethylene tetramine, diethylene triamine, and the like can be used if the system is to be cured. In addition, dispersing agents, conductive material or lubricants can be utilized with this system. Recording media produced from these compositions display superior abrasion resistance, resistance to wear, and low static build-up with pigment loadings of from 15% to 95% by volume. *Trademarks of E. I. du Pont de Nemours and Co.

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