Method of Preparing Magnetic Polymer Material Composites with Magnetic and Electrically Conducting Features

Patent Status: 

Patent Granted

Indian Patent Applicaton No: 

858/DEL/2000

Grant: 

216744

US Patent No: 

6,627,101 B2

US Patent No Date: 

30.09.2003

Date Filed: 

22.09.2000

Date Granted: 

19.03.2008

Department: 

Patent Category: 

Overview: 

A magnetic polymer composite and the process for the preparation of the same for the read and write head for use in magnetic storage devices.

Key Features: 

  • Prepared by a process by dissolving 60-90% by weight of the polymer in a solvent to obtain a clear colorless solution.
  • A magnetic polymer composite comprising 60-90% by weight of polymer, 10-40% by weight of magneto resistive alloys and 5-30% by weight of additive.
  • Adding the alloy and additive to this solution and agitating the mixture at a frequency of 15-20 kHz to get a dispersed magneto resistive alloy in the said polymer solution.

Applications: 

  • Used as polymer magneto resistive alloy composite coating in avionic tube applications.
  • Recording media industry, tape material manufactures.

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