Compositions – Magnetic – With wax – bitumen – resin – or gum
Patent
1989-11-16
1991-12-03
Bleutge, John C.
Compositions
Magnetic
With wax, bitumen, resin, or gum
428694, 428900, 524435, 525131, 528 71, H01F 100, C08G 1828, C08G 1870, C08L 7504
Patent
active
050698079
ABSTRACT:
The present invention concerns magnetic concerns magnetic recording media comprising fine, magnetizable pigment or particles dispersed in a binder and supported on a substrate. The invention particularly concerns the nature of the binder. The binder comprises a sulfonated, hydroxy-functional polyurethane polymer having sulfonate and cross-linkable hydroxyl groups pendant from the polyurethane polymer backbone. The hydroxyl groups are pendant from the polyurethane polymer at locally hydrophobic sites. The binder also comprises a sulfonated, hydroxy-functional vinyl chloride copolymer having sulfonate and cross-linkable hydroxyl groups pendant from the vinyl chloride copolymer backbone.
REFERENCES:
patent: 4707411 (1987-11-01), Nakayama et al.
patent: 4743501 (1988-05-01), Eguchi et al.
patent: 4784907 (1988-11-01), Matsufuji et al.
patent: 4784914 (1988-11-01), Matsufuji et al.
patent: 4786557 (1988-11-01), Kakuishi et al.
patent: 4798755 (1989-01-01), Yamada et al.
patent: 4806417 (1989-02-01), Saito et al.
Bleutge John C.
Griswold Gary L.
Hamilton, III. Thomas
Kagan David B.
Kirn Walter N.
LandOfFree
Binder composition for use in 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 Binder composition for use in magnetic recording media, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Binder composition for use in magnetic recording media will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1695353