Abstract: Composite oxide fine particles are produced by sol-gel method under conditions in which coarse particles and aggregated particles are unlikely to be generated, and the composite oxide fine particles are further wet-filtered using a filter to remove the coarse particles and the aggregated particles. Then, a salt is added to a dispersion of the composite oxide fine particles to produce weak aggregates of the composite oxide fine particles in the dispersion. A solid content is separated from the dispersion of the composite oxide fine particles containing the aggregates, and then dried. The solid content is easily made finer because no firm aggregates are generated during the drying. That is, composite oxide fine particles containing no coarse particles and aggregated particles are obtained. Use of a known cracking means can further reduce the amount of coarse particles.

Abstract: The present invention relates to a resin composition containing a phosphate ester-based flame retardant (A) having an aromatic hydrocarbon group containing two or more aromatic ring structures and a polyphenylene ether derivative (B) having an ethylenically unsaturated bond-containing group at both ends.

Abstract: The present invention relates to a resin composition containing a phosphate ester-based flame retardant (A) having an aromatic hydrocarbon group containing two or more aromatic ring structures and a polyphenylene ether derivative (B) having an ethylenically unsaturated bond-containing group at both ends.

Abstract: Provided are: a friction member having a friction material that contains no copper or containing copper in an amount of less than 0.5% by mass in terms of a copper element and has good friction coefficient at normal braking, good abrasion resistance at high speed and high temperature braking, and high stability of the friction coefficient at low speed and low temperature braking; a friction material composition capable of providing the friction material; the friction material; and a vehicle equipped with the friction member or the friction material. The friction member is specifically a friction member having the friction material and a back metal, wherein the friction material contains no copper or contains copper in an amount of less than 0.5% by mass in terms of a copper element and contains zirconium silicate having an average particle size of 0.2 to 0.9 ?m.

Abstract: A cylinder temperature setting method in which the cylinder temperature distribution obtained in the condition setting operation is realized with fidelity, even when the molding operation is performed on injection molding machines which are different from the injection molding machine used for condition setting in the number and/or positions of heat sources arranged on the injection cylinder. A waveform representing the cylinder temperature distribution is obtained from the relationship between the temperatures of respective cylinder portions detected by thermocouples and the positions of the respective thermocouples when a conforming product is molded by a reference injection molding machine. The obtained waveform is stored and reserved in a record medium. The target values for temperature control of respective cylinder portions of another injection molding machine are obtained based on the reserved waveform, thereby realizing the cylinder temperature distribution obtained in the condition setting.

Abstract: A cylinder temperature controller for an injection molding machine in which an injection molding operation is performed while keeping the injection cylinder at a stable preset temperature regardless of disturbances such as the change of mold temperature or ambient temperature and the temperature rise caused by the shear compression of resin. A temperature regulator for carrying out PID feedback control of the injection cylinder temperature is provided with a PID adjusting means unit for automatic tuning. The actual temperature T of each portion of the injection cylinder is detected by a thermocouple. When the actual temperature T deviates from a predetermined temperature range defined by an upper limit [A+B] and lower limit [A-B] which are set on the basis of the preset target temperature A, an automatic tuning command is outputted to the temperature regulator. Upon receipt of this command, the PID adjusting unit sets the PID parameters again at a value suitable to the disturbance.