Production of magnetic recording media

Details Production of magnetic recording media Production of magnetic recording media

1974-11-06

1976-12-28

Pianalto, Bernard D.

Coating processes

Magnetic base or coating

Magnetic coating

428900, H01F 1002

Patent

active

040003361

ABSTRACT:
In a process for the production of magnetic recording media by applying a layer of a dispersion of a magnetic pigment in a polyurethane-containing binder and a solvent to non-magnetic supports, small amounts of ethylenically unsaturated polymerizable carboxylic acids or their anhydrides with or without copolymerizable monomers are added and polymerized during dispersion of the magnetic pigment. Recording media produced by this process exhibit excellent output level, coefficient of friction and electrical resistance values and have particularly good operational durability.

REFERENCES:
patent: 3526598 (1970-01-01), Lemke
patent: 3586630 (1971-06-01), Ingersoll
patent: 3597495 (1971-08-01), Sekmakas et al.
patent: 3634252 (1972-01-01), Graham
patent: 3649541 (1972-03-01), Ingersoll

Affiliated with

Also associated with

Rating

Production of magnetic recording media does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-149421