摘要:
The polyphenylene ether according to the present invention includes 5 to 20% by mass of a component having a molecular weight of 50,000 or more and 12 to 30% by mass of a component having a molecular weight of 8,000 or less. The resin composition according to the present invention includes the polyphenylene ether (a) and a hydrogenated block copolymer (b) prepared by hydrogenating a block copolymer including at least two polymer blocks A having a vinyl aromatic compound and at least one polymer block B having a conjugated diene compound, wherein the number average molecular weight (Mnb) of the hydrogenated block copolymer is 100,000 or less, and the number average molecular weight (MnbA) of at least one polymer block of the polymer blocks A is 8,000 or more.
摘要:
[Problem to be Solved] The present invention has an object to provide an automotive lamp extension molding comprising a resin composition having a low specific gravity, being excellent in the balance of heat resistance and fluidity, and being excellent in gloss and brightness feeling of the surface of the molded article. [Solution] The automotive lamp extension molding according to the present invention comprises a resin composition comprising 50 to 95 mass % of a polyphenylene ether (A), and having a specific gravity in the range of 1.00 to 1.12. The reduced viscosity (measured at 30° C. using a chloroform solvent) of the (A) component is preferably 0.25 to 0.45 dl/g, and more preferably 0.25 to 0.38 dl/g.
摘要:
Mass productivity and production stability of a polyphenylene ether composition are improved without deteriorating physical properties by means of a production process of polyphenylene ether composition comprising pre-melt compounding 20 to 98.5% by mass of a polyphenylene ether powder (I), 1 to 60% by mass of an inorganic filler powder (II) and 0.5 to 20% by mass of a thermoplastic elastomer having functional group (III), followed by melt compounding; wherein melt compounding is conducted using a twin-screw extruder having a total length of barrels of 800 mm or more, and a pre-melt compounding zone occupies 45 to 80 % of upstream of the twin-screw extruder based on the total length 100% of the twin-screw extruder when a drive side and a molten compound discharging side of the twin-screw extruder are regarded as upstream and downstream, respectively.
摘要:
An object of the present invention is provide a disperse dye composition that has the light fastness required of synthetic fiber materials for automotive interiors that are exposed to sunlight at high temperature and high humidity, and that has good blue, red, and yellow dyeability. This object is achieved by a mixed disperse dye composition comprising a blue disperse dye composition having a specific composition ratio of five specific types of disperse dyes, and other specific yellow and/or red disperse dyes. The invention makes it possible to provide a disperse dye composition having not only high fastness of each color but light fastness with a favorable balance of the three primary colors, with the dye properties of each color equal during dyeing, and good dye color reproducibility, as well as by a dyeing method using this dye.
摘要:
[Problem to be Solved] The present invention has an object to provide an automotive lamp extension molding comprising a resin composition having a low specific gravity, being excellent in the balance of heat resistance and fluidity, and being excellent in gloss and brightness feeling of the surface of the molded article.[Solution] The automotive lamp extension molding according to the present invention comprises a resin composition comprising 50 to 95 mass % of a polyphenylene ether (A), and having a specific gravity in the range of 1.00 to 1.12. The reduced viscosity (measured at 30° C. using a chloroform solvent) of the (A) component is preferably 0.25 to 0.45 dl/g, and more preferably 0.25 to 0.38 dl/g.
摘要:
A reinforced flame retardant resin composition including 20 to 87% by mass of an (A) thermoplastic resin, 3 to 20% by mass of a (B) aromatic phosphoric acid ester-based flame retardant agent, 5 to 40% by mass of (C) mica powder, and 0.5 to 30% by mass of (D) hydrous mineral powder having a dehydration starting temperature for crystallization water in a range of 400 to 600° C.
摘要:
Toner images of reference patterns having different resolutions are formed on an image carrier, image densities of the toner images of reference patterns are detected by a density sensor, and an output of the density sensor, when the detected densities equate among the reference patterns having different resolutions formed with the same image forming condition, is memorized as a reference value for calibrating the output the density sensor.
摘要:
A synthetic route evaluation system extracts an optimal synthetic route from a plurality of synthetic routes for a target compound to be synthetically produced. The synthetic route evaluation system includes an arithmetic processing device, which is composed of a quantum chemistry calculation unit, a reaction mechanism analysis unit, and a synthetic route ranking unit, and a storage device for storing data relative to the synthetic routes.
摘要:
The process for manufacturing a platinum temperature-measuring resistance element comprises the step of preparing a thermosensitive part having a portion to be sealed coated with a glaze; the step of placing a pre-sealing element on a tray and inserting the same in a chamber; the step of enclosing a purge gas containing an inert gas and oxygen in the chamber; the step of raising the internal temperature of the chamber to a region in which the platinum is in reduced form at a partial pressure of oxygen in the purge gas as determined from platinum oxide formation free energy; the step of replacing the purge gas with an inert gas wherein oxygen is 1 kPa or below; and the step of under the replaced condition, rapidly heating the furnace interior (interior of the chamber) to a fit melting temperature by means of a lamp heating unit to thereby seal the portion to be sealed of the thermosensitive part.
摘要:
A process for manufacturing a platinum resistance thermometer that is stable with reduced resistance value variation over service temperature range through clarification of a quantitative mechanism of resistance value variation with respect to the oxidation/reduction of platinum resistance wire. The process including the steps of (S1) enclosing a purge gas containing an inert gas and oxygen in a protection tube provided with a thermosensitive part of platinum resistance wire; (S2) raising the internal temperature of the protection tube to a temperature region in which the platinum is in reduced form at a partial pressure of oxygen in the purge gas as determined from platinum oxide formation free energy; (S3) replacing the purge gas with an inert gas wherein oxygen is 1 kPa or below; and (S4) sealing the protection tube under the replaced condition.