Patent · US Expired

Magnetic recording medium

US5443913A · kind A · utility

8Cited by
4References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 15, 1993
Grant dateAug 22, 1995
Priority date
Expiry dateOct 15, 2013

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31935
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

In a magnetic recording medium comprising on a non-magnetic substrate a magnetic layer obtained by dispersing ferromagnetic powder in an electron beam-curable resin followed by electron beam curing or a backcoat layer obtained by curing an electron beam-curable resin with electron beams, a combination of an electron beam-curable vinyl chloride resin having a sulfur-containing polar group and an electron beam-curable urethane resin having a phosphorus-containing polar group is used as the electron beam-curable resin. This results in improvements in dispersibility, surface smoothness, and electromagnetic characteristics, as well as a lowering of error rate in high density digital recording. Storage property is good.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.