Abstract: An electronic control device calculates the maximum actual oxygen storage capacity of a catalyst. The gradient of a linear expression formed between the catalyst temperature and the maximum oxygen storage capacity of the catalyst is stored for each degradation level of the catalyst. The gradient can be learned in accordance with the same temperature of the catalyst and the maximum actual oxygen storage capacity. When the maximum actual oxygen storage capacity is calculated, it is revised in accordance with the temperature of the catalyst, a reference temperature, the linear expression, and the learned gradient. The revised maximum oxygen storage capacity which is the maximum oxygen storage capacity when the temperature of the catalyst during the same calculation period is equal to the reference temperature is then calculated. If a response delay is detected in the output of an oxygen sensor, the gradient of the learned linear expression is discarded.

Abstract: The object of the present invention is to provide an aluminum hydroxide powder for filling in resin, which is excellent fillability in resin. Provided is an aluminum hydroxide powder forfilling in resin, being characterized in that it comprises a gibbsite crystal structure.

Abstract: The fact that “with respect to a process in which the output value of a downstream air-fuel ratio sensor (sensor output value) is inverted from the minimum output value to the maximum output value during execution of an active control, the local maximum and minimum values of the secondary differential value of the sensor output value is widely affected by the size of the response delay of the downstream air-fuel ratio sensor and the size of the degree of the degradation of the three-way catalyst” is utilized. By preliminarily acquiring and memorizing, as maps, these relations obtained through an experiment, and applying the “local maximum and minimum values of the secondary differential value of the sensor output value” calculated from the transition of the sensor output value acquired during execution of the active control to the maps, the response delay (time constant) of the downstream air-fuel ratio sensor is acquired.

Abstract: A production method comprising the steps of: spraying an aluminum hydroxide powder having a specific surface area measured by a nitrogen adsorption method of 0.3 m2/g or more and 3 m2/g or less; a ratio of an average particle diameter D50, which is a particle diameter at which 50% by weight of particles from the finest particle side are accumulated in a particle diameter distribution measured by a laser diffraction scattering method, to a sphere conversion particle diameter Dbet calculated from a specific surface area, of 10 or less; and the average particle diameter D50 of 2 ?m or more and 100 ?m or less, into flames, and then collecting it in the form of a powder to give a spherical alumina powder having a small specific surface area and a low uranium content, and capable of providing high thermal conductivity to resin compositions.

Abstract: There is provided a polypropylene resin composition comprising 50 to 99% by weight of a resin (I) and 1 to 50% by weight of boehmite (C) having a BET specific surface area of 20 to 80 m2/g, c-length of 30 to 300 nm, and a ratio of a-axis length to b-axis length of 5 or more, the resin (I) containing 50 to 75% by weight of a polypropylene resin (A), which contains a propylene homopolymer and/or a propylene-ethylene random copolymer containing 1.0% by weight or less of ethylene units, and 25 to 50% by weight of an elastomer (B), provided that the total of the resin (I) and boehmite (C) is 100% by weight, and the total of the polypropylene resin (A) and the elastomer (B) is 100% by weight.

Abstract: There is provided a polypropylene resin composition comprising 50 to 99% by weight of a polypropylene resin (A), which contains a propylene homopolymer and/or a propylene-ethylene random copolymer containing 1.0% by weight or less of ethylene units, and 1 to 50% by weight of boehmite (B) having a BET specific surface area of 20 to 80 m2/g, c-axis length of 30 to 300 nm, and a ratio of a-axis length to b-axis length (a-axis length/b-axis length) of 5 or more, provided that the total of the polypropylene resin (A) and boehmite (B) is 100% by weight.

Abstract: The object of the present invention is to provide a crystalline thermoplastic polymer composition which exhibits higher stiffness. The present invention relates to a crystalline thermoplastic polymer composition comprising a crystalline thermoplastic polymer and a crystal nucleating agent coated aluminum hydroxide, the amount of the crystal nucleating agent coated aluminum hydroxide being from 1 to 20 parts by mass based on 100 parts by mass of the crystalline thermoplastic polymer, the crystal nucleating agent coated aluminum hydroxide comprising anisotropic shaped aluminum hydroxide particles and a crystal nucleating agent coated on the surface of the anisotropic shaped aluminum hydroxide particles, the crystal nucleating agent coated aluminum hydroxide having a BET specific surface area of 20 to 150 m2/g.

Abstract: A crystalline thermoplastic resin composition containing a crystalline thermoplastic resin, acicular aluminum hydroxide having a BET specific surface area of from 10 m2/g to 100 m2/g and a nucleating agent in which a weight ratio (A/B) of the aluminum hydroxide (A) to the nucleating agent (B) is 40 or less.

Abstract: According to the present invention, during or after the process of separating an aqueous solution of hydrochloric acid by-produced from a chlorinated vinyl chloride resin slurry obtained by chlorinating vinyl chloride resin or a copolymer of vinyl chloride and another copolymerizable monomer, hypochlorite is added to the chlorinated vinyl chloride slurry or water-containing resin. Due to this, the concentration of hydrochloric acid in the chlorinated vinyl chloride resin or chlorinated vinyl chloride copolymer resin before drying is reduced, and the problem of removing hydrochloric acid in the subsequent drying treatment is reduced, whereby the problem of corrosion of a drier can be reduced.

Abstract: Acicular boehmite having a BET specific surface area of at 20 to 80 m2/g, a dioctyl phthalate oil absorption of 200 to 600 cm3/100 g, a minor axis length of 30 to 300 nm and an aspect ratio of 5 to 50, which may be produced by hydrothermally reacting aluminum hydroxide powder at a temperature of 160 to 250° C. in an aqueous solution having pH of 4 to 6 and containing 0.1 to 5 mol/L of a salt of a metal ion selected from magnesium ion, manganese ion and zinc ion and an anion selected from carboxylate ion, nitrate ion and sulfate ion.

Abstract: According to the present invention, during or after the process of separating an aqueous solution of hydrochloric acid by-produced from a chlorinated vinyl chloride resin slurry obtained by chlorinating vinyl chloride resin or a copolymer of vinyl chloride and another copolymerizable monomer, hypochlorite is added to the chlorinated vinyl chloride slurry or water-containing resin. Due to this, the concentration of hydrochloric acid in the chlorinated vinyl chloride resin or chlorinated vinyl chloride copolymer resin before drying is reduced, and the problem of removing hydrochloric acid in the subsequent drying treatment is reduced, whereby the problem of corrosion of a drier can be reduced.

Abstract: The present invention provides an apparatus for adjusting registration to correct distortion and color shift of images on a display screen which comprises RAMs (13) and (15) for storing correction data for deflection used to correct scanning positions of image signals for respective plural adjustment points arranged on the display screen along the horizontal direction and the vertical direction, and an Interpolation calculation block (18) for determining the number of interpolation scanning lines being the number of scanning lines which are scanned between the adjustment points corresponding to input image signals as well as for performing interpolation calculation based on the number of interpolation scanning lines for correction waveforms corresponding to display screen position induced from the correction data of the respective adjustment points to generate current signals to be applied to deflection yokes.