High speed antistatic magnetic member

• US 3,293,066 A
• Filed: 12/19/1962
• Issued: 12/20/1966
• Est. Priority Date: 12/19/1962
• Status: Expired due to Term

• Current Assignee: Robert S. Haines
• Original Assignee: Robert S. Haines
• Inventors: Haines, Robert S.
• Application Number:
  US04/245,837
• Time in Patent Office: 1,462 Days
• US Class Current: 428/446
• CPC Class Codes: G11B 5/7356 comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
• CPC Class Codes: H01B 1/24 the conductive material comprising carbon-silicon compounds, carbon or silicon
• CPC Class Codes: H05F 1/02 by surface treatment
• CPC Class Codes: Y10S 428/90 Magnetic feature
• CPC Class Codes: Y10S 428/922 Static electricity metal bleed-off metallic stock

Claims

1. A MAGNETIC RECORD MEMBER COMPRISING:

A FLEXIBLE NONMAGNETIC SUPPORT HAVING TWO FACES;

A MAGNETIC LAYER COVERING ONE FACE OF THE SUPPORT;

AND A WEAR RESISTANT ANTISTATIC COATING HAVING GOOD FRICTIONAL CHARACTERISTICS ADHERENTLY BONDED TO THE SECOND FACE OF THE SUPPORT, SAID ANTISTATIC COATING CONSISTING ESSENTIALLY OF PARTICLES OF SILICA AEROGEL AND COLLOIDAL SIZED PARTICLES OF CARBON