Magnetic recording elements and process of preparation

Details Magnetic recording elements and process of preparation Magnetic recording elements and process of preparation

1977-03-07

1979-08-07

Pianalto, Bernard D.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

427 48, 427128, 427130, 427132, 428329, 428336, 428900, H01F 1002

Patent

active

041638239

ABSTRACT:
Magnetic recording elements which combine low modulation noise with excellent high frequency output and their process of preparation are disclosed. Such elements comprise a support having a surface with a peak-to-peak roughness up to about 0.5 micron, which surface is coated with a magnetic recording medium having a thickness in the range of 4 to about 20 microns. The magnetic recording medium comprises about 8 to 30 percent, by volume, of discrete, non-solid, nonmagnetizable voids that are substantially homogeneously dispersed therein. The magnetic recording medium also contains aligned and oriented acicular magnetizable particles dispersed in a magnetic recording layer which forms an outer surface of the magnetic recording element and has a surface smoothness, determined as percent contact area, of at least 86 percent, the ratio of the thickness of the magnetic recording medium to the peak-to-peak roughness of the support in the elements disclosed is at least 10.
The process disclosed for preparing the above magnetic recording elements comprises the steps of:

REFERENCES:
patent: 3398011 (1968-08-01), Neirotti et al.
patent: 3761311 (1973-09-01), Perrington et al.
patent: 3775178 (1973-11-01), Perrington et al.

Affiliated with

Also associated with

Rating

Magnetic recording elements and process of preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic recording elements and process of preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording elements and process of preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1525351