Abstract: When measuring the molecular mass distribution of conductive aniline polymer of formula (1) by GPC and converting its retention time into molecular mass (M) in terms of sodium polystyrene sulfonate, for the molecular mass (M), the area ratio (X/Y) of the area (X) of a region of 15,000 Da or more to the area (Y) of a region of less than 15,000 Da is 1.20 or more. A method for producing such a polymer includes: polymerization step (Z1) where specific aniline derivative (A) is polymerized in a solution containing basic compound (B), solvent (C), and oxidizing agent (D) at a liquid temperature lower than 25° C.; or polymerization step (Z2) where specific aniline derivative (A) and oxidizing agent (D) are added to and polymerized in a solution of a conductive aniline polymer (P-1) with a unit of formula (1) dissolved or dispersed in a solvent (C).

Abstract: Thermoplastic resin composition for a light reflector such as a housing, reflector, and extension of an automotive lamp, and a lighting fixture. The composition contains 2 to 45 parts by mass of an inorganic filler treated with a fatty acid type surface treating agent and has an average diameter of not more than 3 ?m, per 100 parts by mass of a thermoplastic resin. The housing reflector made from such thermoplastic resin composition shows excellent surface smoothness, surface luster and surface image clarify.

Abstract: When measuring the molecular mass distribution of conductive aniline polymer of formula (1) by GPC and converting its retention time into molecular mass (M) in terms of sodium polystyrene sulfonate, for the molecular mass (M), the area ratio (X/Y) of the area (X) of a region of 15,000 Da or more to the area (Y) of a region of less than 15,000 Da is 1.20 or more. A method for producing such a polymer includes: polymerization step (Z1) where specific aniline derivative (A) is polymerized in a solution containing basic compound (B), solvent (C), and oxidizing agent (D) at a liquid temperature lower than 25° C.; or polymerization step (Z2) where specific aniline derivative (A) and oxidizing agent (D) are added to and polymerized in a solution of a conductive aniline polymer (P-1) with a unit of formula (1) dissolved or dispersed in a solvent (C).

Abstract: Thermoplastic resin composition for a light reflector such as a housing, reflector, and extension of an automotive lamp, and a lighting fixture. The composition contains 2 to 45 parts by mass of an inorganic filler treated with a fatty acid type surface treating agent and has an average diameter of not more than 3 ?m, per 100 parts by mass of a thermoplastic resin. The housing reflector made from such thermoplastic resin composition shows excellent surface smoothness, surface luster and surface image clarify.

Abstract: Thermoplastic resin compositions for a light reflector contain 2 to 45 parts by mass per 100 parts by mass of a thermoplastic resin (A) of an inorganic filler (B1) treated with a fatty acid type surface treating agent and having an average particle diameter of not more than 3 ?m, or 2 to 45 parts by mass of an inorganic filler (B2) having a refractive index ? of 1.61???2.5 and having an average particle diameter of not more than 3 ?m, 0.01 to 3 parts by mass of glycerol triester of a fatty acid and/or a glycerol diester of a fatty acid (C1), and 0.01 to 3 parts by mass of a glycerol monoester of a fatty acid (C2). A molded article for a light reflector and a light reflector in which a light reflecting metal layer is directly formed on at least a part of the surface of the molded article is produced from one of such thermoplastic resin compositions.

Abstract: When measuring the molecular mass distribution of conductive aniline polymer of formula (1) by GPC and converting its retention time into molecular mass (M) in terms of sodium polystyrene sulfonate, for the molecular mass (M), the area ratio (X/Y) of the area (X) of a region of 15,000 Da or more to the area (Y) of a region of less than 15,000 Da is 1.20 or more. A method for producing such a polymer includes: polymerization step (Z1) where specific aniline derivative (A) is polymerized in a solution containing basic compound (B), solvent (C), and oxidizing agent (D) at a liquid temperature lower than 25° C.; or polymerization step (Z2) where specific aniline derivative (A) and oxidizing agent (D) are added to and polymerized in a solution of a conductive aniline polymer (P-1) with a unit of formula (1) dissolved or dispersed in a solvent (C).

Abstract: The present invention provides a conductive polymer in which, when being formed into a coating film, foreign materials are difficult to be generated even the passage of time and a quality control method for a conductive polymer and has a repeating unit which is represented by the following general formula (1). The present invention also provides a quality control method for conductive polymers wherein conductive polymers with an area ratio (Y/X) of 0.60 or less are selected. In the formula R1 to R4 are each independently —H, a linear or branched alkyl group having 1 to 24 carbon atoms, a linear or branched alkoxy group having 1 to 24 carbon atoms, an acidic group, a hydroxyl group, a nitro group, —F, —Cl, —Br or —I; and at least one of R1 to R4 is an acidic group or a salt thereof.

Abstract: Disclosed are a thermoplastic resin composition for a light reflector which composition contains 2 to 45 parts by mass of an inorganic filler (B1) treated with a fatty acid type surface treating agent and havng an average particle diameter of not more than 3 ?m, per 100 parts by mass of a thermoplastic resin (A); a thermoplastic resin composition for a light reflector which composition contains 2 to 45 parts by mass of an inorganic filler (B2) having a refractive index a of 1.61???2.5 and having an average particle diameter of not more than 3 ?m, per 100 parts by mass of a thermoplastic resin (A); a thermoplastic resin composition for a light reflector which composition contains both 0.01 to 3 parts by mass of glycerol triester of a fatty acid and/or a glycerol diester of a fatty acid (C1), and 0.