摘要:
An improved magnetic recording medium suitable for high density recording is disclosed, which has a squareness ratio in the vertical direction of 0.6 or more and an orientation ratio (squareness ratio in the vertical direction/squareness ratio in the lengthwise direction) of 0.7 or more, prepared from acicular magnetic iron oxide particles having crystalline magnetic anisotropy and a ratio of Fe.sup.2+ /Fe.sup.3+ of 0.05 or less uniformly cobalt-doped, the particles having preferably a particle size of 0.3.mu. or less and an axial ratio of 6 to 10.
摘要翻译:公开了一种适用于高密度记录的改进的磁记录介质,其垂直方向的垂直度为0.6或更大,并且取向比(垂直方向上的矩形比/长度方向的矩形比)为0.7以上, 由具有结晶磁各向异性的针状磁性氧化铁颗粒和均匀钴掺杂的Fe 2+ + Fe 3+比为0.05或更低的颗粒制备,颗粒的粒度优选为0.3μm以下,轴比为6〜10。
摘要:
A magnetic recording medium suitable for high-density recording, which comprises a magnetic layer containing uniaxial anisotropic, acicular iron oxide particles having a particle size of not more than 0.3.mu., with a surface layer containing a major amount of cobalt being formed on seeds of the magnetic particles, said magnetic recording medium having a residual magnetic flux density both in a vertical direction and in a horizontal or longitudinal direction of not less than 1000 gauss.
摘要:
Because of the composition represented by General Formula: Li1+x+αNi(1−x−y+δ)/2Mn(1−x−y−δ)/2MyO2 (where 0≦x≦0.05, −0.05≦x+α≦0.05, 0≦y≦0.4; −0.1≦δ≦0.1 (when 0≦y≦0.2) or −0.24≦δ≦0.24 (when 0.2
摘要翻译:由于由通式表示的组成:Li 1 + x +αN 1(1-x-y +δ)/ 2 Mn(1-xy- (其中0 <= x <= 0.05,0.05 <= x +α<=0.05,0≤n≤0.0) y <= 0.4; -0.1 <=δ<= 0.1(当0 <= y <= 0.2)或-0.24 <=δ= 0.24时(当0.2
摘要:
An electrochemical device having excellent safety at high temperature is provided by using a separator for an electrochemical device, which is made of a porous film comprising: a porous base (5) having a heat-resistant temperature of 150° C. or higher and including filler particles (3); at least one kind of shutdown resin (6) selected from the group consisting of resin A that has a melting point in a range of 80° C. to 130° C. and resin B that absorbs an electrolyte and swells due to heating, and the swelling degree is increased as the temperature rises; and a binder (4).
摘要:
An electrode material for an electrochemical capacitor having a large capacity, having a titanium oxide compound such as titanium oxide, hydrated titanium oxide or their hydrogenated products, and at least one oxidizable and reducible metal element contained in the titanium oxide compound.
摘要:
A pigment ink for ink-jet recording comprises a pigment, a polyethylene oxide-containing dispersing agent, a water-soluble organic solvent, polyethylene oxide, and water. In place of polyethylene oxide, it is possible to use a water-soluble compound having a structure in which two or three hydroxyl groups are joined to a hydrocarbon having a number of carbons of 4 to 6. The ink does not cause any head clogging, and it is excellent in printing quality.
摘要:
The present invention relates to a liner free heat-sensitive recording adhesive sheet comprisinga substrate,a heat-sensitive recording layer formed on one face of the substrate,a barrier layer formed on the heat-sensitive recording layer,a release layer formed on the barrier layer, andan adhesive layer formed on the other face of the substrate, wherein the barrier layer is formed by applying a coating composition comprising colloidal silica and at least one member selected from the group consisting of water-soluble resins and water-dispersible resins. The liner free heat-sensitive recording adhesive sheet is excellent in recording sensitivity and printer runability as well as cohesion between the barrier layer and the release layer.
摘要:
A magnetic recording medium improved in lubricity and abrasion resistance, which comprises a base material and a magnetic layer provided thereon, said magnetic layer comprising magnetic particles and a binder, characterized in that said magnetic layer further comprises at least one silicone compound of the formula: ##STR1## wherein X is the same or different and --A--COOH, --A--OH, ##STR2## or --A--NH.sub.2 in which A is a divalent hydrocarbon group having not more than 26 carbon atoms, Y and Y' are each --X or --CH.sub.3, p is an integer of 0 to 1,000 and q is an integer of 1 to 500 but p+q is not more than 1,000 in an amount of 0.1 to 5% by weight based on the weight of the magnetic particles in the magnetic layer.
摘要:
An electrode according to the invention can provide a non-aqueous electrolyte secondary battery having an ability to release a volume expansion at the time of charge and discharge as well as the time of a cycle. The electrode comprises a current collector made of a material which is not alloyed with Li, and a dot pattern 2 of a metallic material able to be alloyed with Li formed on the current collector. At the time of charge, since the volume expansion of each dot 3 is carried out so as to bury adjoining crevices 4 between the dots, a stress generated is released, thereby degradation of an electrode being avoided. Each dot may also be made into porosity.