Patent · US Expired

Magnetic recording medium comprising a magnetic film layer and a coating of purified perfluoropolyther lubricant

US5292585A · kind A · utility

18Cited by
6References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 30, 1991
Grant dateMar 8, 1994
Priority date
Expiry dateAug 30, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31544
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A magnetic recording medium having coated thereon a lubricant of such a purity that no impurities and low molecular weight species are substantially detected by gel permeation chromatography.

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