Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1982-07-02
1983-09-13
Robinson, Ellis P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
360134, 360135, 360136, 358335, 427 541, 427131, 427132, 427409, 427410, 428 64, 428 65, 428216, 428336, 428411, 428413, 428420, 428422, 428694, 428695, 428522, 428900, G11B 582, B32B 2730
Patent
active
044042477
ABSTRACT:
Magnetic recording medium protected by an ultra-thin, composite low surface energy covering provided by an inner layer of insoluble polymer and an outer layer of insoluble polymer which are made by in situ polymerization. The inner layer is made from two monomers such as a hydantoin hexacrylate and alpha-methyl styrene. The outer layer is made from polymerizable perfluoropolyether monomer having ethylenicaly unsaturated polymerizable groups. The composite low surface energy covering is especially useful for providing lubricity and corrosion resistance to a metallic thin-film magnetic recording coating.
REFERENCES:
patent: 2644787 (1953-07-01), Bonn et al.
patent: 3138479 (1964-06-01), Foley
patent: 3350180 (1967-10-01), Croll
patent: 3531322 (1970-09-01), Billerica et al.
patent: 3778308 (1973-12-01), Roller
patent: 3810874 (1974-05-01), Mitsch et al.
patent: 3973072 (1976-08-01), Anderson et al.
patent: 4188434 (1980-02-01), Loran
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 4267238 (1981-05-01), Chernega
patent: 4268556 (1981-05-01), Pedrotty
patent: 4321404 (1982-03-01), Williams et al.
patent: 4327139 (1982-04-01), Schaefer et al.
Dominguez-Burguette Mario
Foss George D.
Alexander Cruzan
Ewert William G.
Minnesota Mining and Manufacturing Company
Robinson Ellis P.
Sell Donald M.
LandOfFree
Protective covering for 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 Protective covering for magnetic recording medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protective covering for magnetic recording medium will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1730304