×

MAGNETIC TAPE

  • US 20170249964A1
  • Filed: 02/27/2017
  • Published: 08/31/2017
  • Est. Priority Date: 02/29/2016
  • Status: Active Grant
First Claim
Patent Images

1. A magnetic tape,which comprises a magnetic layer comprising ferromagnetic powder and binder on one surface of a nonmagnetic support and comprises a backcoat layer comprising nonmagnetic powder and binder on the other surface of the nonmagnetic support, wherein:

  • a thickness of the backcoat layer is less than or equal to 0.20 μ

    m;

    a contact angle for 1-bromonaphthalene that is measured on a surface of the backcoat layer falls within a range of 10.0°

    to 30.0°

    ; and

    a contact angle for 1-bromonaphthalene that is measured on a surface of the magnetic layer falls within a range of 45.0°

    to 55.0°

    .

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×