Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1986-10-15
1987-09-01
Robinson, Ellis P.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
252 6254, 427128, 428694, 428695, 428900, 428323, 428328, 428329, G11B 571
Patent
active
046908641
ABSTRACT:
A magnetic recording disc having a high durability and being rotatively driven with small starting torque which comprises a non-magnetic support and a magnetic layer provided on at least one surface of the support, the magnetic layer comprising magnetic powder, a resinous binder, (a) an ester of an unsaturated fatty acid of 8 to 18 carbon atoms with a monovalent or polyvalent, saturated or unsaturated alcohol of not more than 18 carbon atoms optionally substituted with at least one alkoxy group having not more than 8 carbon atoms and (b) a fatty acid ester of the formula: ##STR1## wherein R.sub.1 is a saturated or unsaturated aliphatic hydrocarbon group having 8 to 18 carbon atoms, R.sub.2 is an alkyl group having not more than 18 carbon atoms and n is an integer of 1 or more, the combined amount of the unsaturated fatty acid ester (a) and the fatty acid ester (b) being not less than 5 parts by weight to 100 parts by weight of the magnetic powder.
REFERENCES:
patent: 4405481 (1983-09-01), Yamada
patent: 4455345 (1984-06-01), Miyatuka
patent: 4522885 (1985-06-01), Funahashi
patent: 4539266 (1985-09-01), Miyazaki
patent: 4554220 (1985-11-01), Yamamoto
patent: 4579778 (1986-04-01), Yamaguchi
patent: 4595640 (1986-06-01), Chermega
Funahashi Masaya
Inoue Ken-ichi
Miyake Akira
Miyata Teruhisa
Norimatsu Kohji
Hitachi Maxell Ltd.
Robinson Ellis P.
LandOfFree
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.
Profile ID: LFUS-PAI-O-1264676