Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1986-11-26

1988-05-10

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

252 6254, 427128, 428329, 428522, 428694, 428900, G11B 5714

Patent

active

047435011

ABSTRACT:
In a magnetic recording medium wherein a magnetic coating composition comprising a binder and a magnetic powder is applied to the surface of a substrate, the dispersion of magnetic powder in binder is improved for enhanced physical and electromagnetic properties by using a vinyl chloride/hydroxyl group-containing vinyl monomer/polar group-containing monomer copolymer or a vinyl chloride/vinyl acetate/hydroxyl group-containing vinyl monomer/polar group-containing monomer copolymer having not been subjected to saponification, the polar group-containing monomer preferably containing an epoxy group as an additional polar group. Electromagnetic properties are further improved with a metal magnetic powder having a BET value of up to 60 m.sup.2 /g and a pH value of at least 7.

REFERENCES:
patent: 4368237 (1983-01-01), Yamada
patent: 4529661 (1985-07-01), Ninomiya
patent: 4562117 (1985-12-01), Kikukawa
patent: 4594174 (1986-06-01), Nakayama
patent: 4600521 (1986-07-01), Nakamura
patent: 4613545 (1986-09-01), Chubachi
patent: 4634633 (1987-01-01), Ninomiya

Affiliated with

Also associated with

Rating

Magnetic recording medium 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 medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1320219