摘要:
The present invention relates to a positive electrode active substance for non-aqueous electrolyte secondary batteries which comprises particles comprising a polyanionic compound and carbon, and a lipophilic treatment agent with which the respective particles are coated, wherein the positive electrode active substance has an average particle diameter of 1 to 50 µm. The positive electrode active substance preferably has an oil absorption of not more than 20 mL/100 g. The positive electrode active substance according to the present invention exhibits a good compatibility with a resin and is excellent in packing property and dispersibility in the resin, and therefore can provide an electrode sheet in which the positive electrode active substance is filled with a high packing density.
摘要:
The present invention relates to Li-Ni-based composite oxide particles comprising Mn, and Co and/or Al, wherein Co and Al are uniformly dispersed within the particles, and Mn is present with a gradient of its concentration in a radial direction of the respective particles such that a concentration of Mn on a surface of the respective particles is higher than that at a central portion thereof. The Li-Ni-based composite oxide particles can be produced by allowing an oxide and a hydroxide comprising Mn to mechanically adhere to Li-Ni-based oxide comprising Co and/or Al; and then heat-treating the obtained material at a temperature of not lower than 400°C and not higher than 1,000°C. The Li-Ni-based composite oxide particles of the present invention are improved in thermal stability and alkalinity.
摘要:
The present invention relates to a resin composition for pavement which comprises at least an ethylene-vinyl acetate copolymer having a vinyl acetate content of 25 to 45% by weight, a melting temperature of 40 to 100°C and a melt flow rate of not less than 400 g/10 min, a petroleum-based process oil having an aromatic ring-derived carbon content (CA) of 20 to 40%, and a teleblock polymer. The resin composition for pavement according to the present invention can be melted for a short period of time, and is excellent in wettability and adhesion to an aggregate, and can provide a paved surface having an excellent durability which is free from problems such as deformation in the summer season and occurrence of cracks in the winter season.
摘要:
A black perylene pigment which comprises a solid solution obtained by burning a mixture of at least two compounds selected among the anhydrides of perylenetetracarboxylic acid, diimide derivatives of perylenetetracarboxylic acid, and diimide derivatives of perylenediiminodicarboxylic acid. It is excellent not only in blackness but in heat resistance and weatherability, has high resistance, and is highly safe.
摘要:
A resin composition suitable for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0 x 10 13 to 1.0 x 10 16 Ω·cm when measured according to JIS K6723, and comprises: (i) 100 parts by weight of a chlorine-containing resin, and (ii) 1.5 to 10 parts by weight of Mg-Al-based hydrotalcite-type particles having a composition represented by the formula:[MgxCay]·Alz·(OH)2·An- p·mH2O wherein 0.2≤z/(x+z)≤0.6, 0.01≤y/(x+z)≤0.20, x+y+z=1, p=(2(x+y-1)+3z)/n, A is a-valent anion and m is more than 0 and not more than 0.75; having a plate surface diameter of 0.1 to 1.0µm and a thickness of 0.02 to 0.08µm; containing calcium at a molar ratio of Ca to the sum of Mg and Al of 0.01:1 to 0.20:1; and having a heat-resisting time of not less than 4 hours.
(a) 400 to 1,900 parts by weight of at least one kind of magnetic particles selected from magnetoplumbite-structure ferrite particles and rare-earth magnet particles, as a filler; and (b) 100 parts by weight of a binder comprising 50 to 95 % by weight of at least one thermoplastic elastomer selected from a styrene-isoprene-styrene block copolymer resin, a styrene-ethylene-butylene-styrene block copolymer resin and an ethylene-propylene copolymer rubber, and 5 to 50 % by weight of at least one soft polyolefin selected from a propylene homopolymer and a propylene-ethylene copolymer.
摘要:
The present invention provides a lithium nickel-layered rock salt-type oxide particle powder, a lithium cobalt-layered rock salt-type oxide particle powder or a particle powder of a solid solution of these layered rock salt-type oxides, wherein the surface of the particle is rendered hydrophobic by coating it with a coupling agent having both a hydrophobic group and a hydrophilic group. The layered rock salt-type oxide particle powder is free of an adverse effect caused by adsorbed water because of less amount of water adsorbed on the surface of the particle powder, high in electrochemical charging and discharging capacities, low in cycle deterioration, so that it is especially useful as a positive electrode active material in a lithium battery.
摘要:
A resin composition suitable for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0 x 10 13 to 1.0 x 10 16 Ω·cm when measured according to JIS K6723, and comprises:
(i) 100 parts by weight of a chlorine-containing resin, and (ii) 1.5 to 10 parts by weight of Mg-Al-based hydrotalcite-type particles having a composition represented by the formula:
[Mg x Ca y ]·Al z ·(OH) 2 ·A n- p ·mH 2 O
wherein 0.2≤z/(x+z)≤0.6, 0.01≤y/(x+z)≤0.20, x+y+z=1, p=(2(x+y-1)+3z)/n, A is a-valent anion and m is more than 0 and not more than 0.75; having a plate surface diameter of 0.1 to 1.0µm and a thickness of 0.02 to 0.08µm; containing calcium at a molar ratio of Ca to the sum of Mg and Al of 0.01:1 to 0.20:1; and having a heat-resisting time of not less than 4 hours.
摘要:
Spindle-shaped goethite particles containing from 8 to 45 atm% of Co, calculated as Co, based on the total amount of Fe, and from 5 to 20 atm% of Al, calculated as Al, based on the total amount of Fe, and having an average major axial diameter of 0.05 to 0.18 µm,
each of said goethite particles comprising a seed portion and a surface layer portion, the weight ratio of said seed portion to said surface layer portion being 30:70 to 80:20, the Co concentration of the seed portion with respect to that of the goethite particle being 50 to 95 : 100 when the Co concentration of the goethite particle is 100, and said aluminum existing only in said surface layer portion.