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5494739 |
Polyethylene-2,6-naphthalenedicarboxylate film
A biaxially oriented polyethylene-2,6-naphthalenedicarboxylate film, which can be used as a base film for a recording medium capable of high-density recording, characterized in that when h (unit:...
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5382614 |
Perfluoropolyether lubricants for magnetic recordings
Difunctional perfluoropolyetheral compounds having polar or non-polar hydrogenated end groups, suitable for being used as inner lubricants in the chemical formulation of the active layer of...
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5371166 |
Polyurethane composition for use as a dispersing binder
The present invention discloses a novel polyurethane composition useful as a dispersing binder. The binder yields magnetic dispersions having high gloss values. Moreover, the polyurethane provides...
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5273826 |
Magnetic coating formulations and magnetic recording media
A polyurethane resin is synthesized from a reaction mixture of at least one phosphorus compound, an epoxy compound, a polyisocyanate, a polyfunctional hydroxy compound, and optionally a chain...
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4840830 |
Polyester film for magnetic recording tape
A polyester film suitable for use as the magnetic tape base for video recording, capable of high density recording and having stable slidability or running characteristics. The polyester film is...
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4761327 |
Biaxially oriented aromatic polyester film
A biaxially oriented film formed from a intimate mixture comprising (I) an aromatic polyester, (II) 0.005 to 1.0% by weight, based on the aromatic polyester, of fine particles of a silicone resin...
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4715977 |
Magnetic coating compositions from carboxylic acid-grafted phenoxy resins
Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxylic acids. The grafted resins have improved adhesion to smooth surfaces, can be readily...
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4716209 |
Strong and elastic polyurethane polyurea polyacrylates and electron beam-cured coatings containing the same
An essentially isocyanate-free polyurethane polyurea polyethylenic oligomer is disclosed which is unusually strong and elastic. This oligomer is the reaction product of: (1) organic diisocyanate;...
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4647506 |
Flexible, self-cross-linking binders
Flexible, self-cross-linking binders, useful for, e.g., paints and magnetic media composites, are prepared from hydroxyl-containing thermoplastic polymers reacted with condensates of diisocyanates...
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4607068 |
Radiation-curable coatings adapted for magnetic recording structures
Radiation curable coating compositions, and especially electron beam-curable coating compositions, are disclosed in which magnetizable particles are dispersed in a liquid vehicle comprising a...
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4595715 |
Oriented polyester film containing calcium carbonate and kaolinite
An oriented polyester film comprising ethylene terephthalate as the major repeating unit, which comprises particles of kaolinite and calcium carbonate uniformly dispersed therein, said kaolinite...
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4590119 |
Polyester film and magnetic recording medium therefrom
An oriented polyester film is provided according to the present invention which contains, per 100 parts by weight of a polyester, (A) 0.005-2 parts by weight of fine particles having average...
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4503198 |
Electron radiation curable resin
The electron radiation curable resin of this invention is an oligopolyester-urethane resin having urethane bonds at both terminals of a polyester moiety, or a polyester-polyurethane resin wherein...
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4476257 |
Magnetic coating composition of partially oxidized nitrocellulose and magnetic powder
A magnetic coating composition used for producing magnetic recording media is disclosed. The composition is comprised of partially oxidized nitrocellulose and magnetic fine powder or magnetic metal...
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4384055 |
Hard vinyl chloride resin composition for information signal recording media
A hard vinyl chloride resin composition for information signal recording media, said composition consisting essentially of (A) 100 parts by weight of a copolymer having a specific viscosity of...
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4263188 |
Aqueous coating composition and method
An aqueous coating composition for forming a magnetic tape which has good adhesion for polyethylene terephthalate substrate. The composition is a stable dispersion in water of urethane with...
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4256852 |
Binder composition for magnetic recording tape
A binder composition for magnetic recording tape which comprises polyisocyanate and a vinyl chloride-vinyl acetate copolymer non-reactive with the polyisocyanate, the copolymer being used in larger...
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4138386 |
Polyester film for magnetic tape
Polyester film for magnetic tape including discrete polyester particles containing lithium, calcium and phosphorus, said particles having an average size in the range from 0.1 to 3.0 μm and inert...
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4122234 |
Article employing a heat hardenable liquid film forming composition with particles dispersed therein and method for making same
A magnetic coating composition in which magnetic iron oxide particles are dispersed into a solution of three components, which upon evaporation of the solvent and curing with elevated temperatures,...
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4096109 |
Polyester films useful as magnetic tapes
A polyester film is disclosed which comprises (a) a polyester mainly consisting of polyethylene terephthalate which includes first inert particles being precipitated in the polyester-forming...
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3843593 |
RADAR ABSORPTIVE COATING COMPOSITION OF AN ACRYLIC POLYMER, A POLYESTER AND AN ISOCYANATE CROSS-LINKING AGENT
A coating composition that forms a durable, flexible radar absorptive coating for aircraft that contains as the binder An acrylic graft copolymer having attached to its backbone side chain ester...
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3290252 |
Cobalt concentration from cobalt sol by extraction
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3228882 |
Dispersions of ferromagnetic cobalt particles
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3200007 |
Method for making a magnetic recording medium
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3149995 |
Magnetic recording element and method of preparation thereof
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3148082 |
Magnetic recording media
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3821156 |
Title is not available
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3655595 |
Title is not available
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3775352 |
Title is not available
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