Koito Manufacturing Company, Ltd.

Toray Industries, Inc.

Mitsubishi Rayon Company, Limited

Asahi Kasei Kabushiki Kaisha

Hidetaka Anma

Koichi Nakamura

Daisuke Mochizuki

Shinji Aikawa

Hideyuki Umetsu

Shinji Matsuoka

Hideki Matsumoto

Kei Saitoh

Masahiko Niino

Naoya Ouchiyama

Hiroaki Hara

Kazuhito Osada

Masayuki Kobayashi

Yoshinori Hatanaka

Yasuaki Konomi

Takashi Furui

Kazuyuki Miyake

Mariko Warashina

Teruhisa Yamada

Provided are a polyphenylene ether resin composition having excellent fluidity and heat resistance, and a vehicle lighting fixture bezel formed of this resin composition and having light weight, excellent external appearance, and low water absorbency. The resin composition contains: (A) 42-57 mass % of a polyphenylene ether resin having a reduced viscosity of 0.39-0.43 dL/g (in chloroform solvent at 30&#xb0; C.); (B) 11-26 mass % of a polyphenylene ether resin having a reduced viscosity of 0.31-0.34 dL/g (in chloroform solvent at 30&#xb0; C.); (C) 9-15 mass % of a block copolymer including a vinyl aromatic hydrocarbon polymer block (c1) and a hydrogenated conjugated diene polymer block (c2); and (D) 15-23 mass % of a homopolymer of a vinyl aromatic hydrocarbon. The (C) block copolymer includes 62-70 mass % of vinyl aromatic hydrocarbon-derived monomer units, has a weight-average molecular weight Mw of 50,000-70,000, and has a molecular weight distribution Mw/Mn (Mn is number-average molecular weight) of 1.00-1.30.

Polyphenylene ether resin composition and vehicle lighting fixture bezel

A polyphenylene sulfide resin composition has excellent heat resistance, flowability and lightweight property as well as surface smoothness and impact resistance. The polyphenylene sulfide resin composition includes 1 to 30 parts by weight of a mica (b) having an aspect ratio of not less than 80, relative to 100 parts by weight of a polyphenylene sulfide resin (a).

Polyphenylene sulfide resin composition, production method thereof and reflector

A fluidity improver for a PC resin that improves the melt fluidity during molding without impairing the excellent properties of the PC resin, and also yields a molded product in which external appearance defects are unlikely. The fluidity improver for an aromatic polycarbonate resin according to the present invention is including a first polymer obtained by polymerizing 0.5 to 99.5 parts by mass of a monomer first mixture including 0.5 to 99.5% by mass of styrene and 0.5 to 99.5% by mass of phenyl (meth)acrylates, in the presence of a second polymer obtained by polymerizing 0.5 to 99.5 parts by mass of a second monomer mixture containing 0.5 to 50% by mass of &#x3b1;-methylstyrene, 0.5 to 99% by mass of styrene and 0.5 to 99% by mass of phenyl (meth)acrylates, wherein the combined total of both monomer mixtures is 100 parts by mass.

Fluidity improver for aromatic polycarbonate resin, process for producing the fluidity improver for aromatic polycarbonate resin, aromatic polycarbonate resin composition, and molded product

A lamp body for a vehicle lighting unit includes a PC/PTT alloy material in which 80 to 50% by weight of a polycarbonate resin (hereinafter referred to as a PC) and 20 to 50% by weight of a polytrimethylene terephthalate resin (hereinafter referred to as a PTT) are contained as principal components and 5 to 10% by weight of a filler is added with respect to the total weight of the PC and the PTT. The lamp body constituted by the PC/PTT alloy material can be thermally welded to a lens formed of the PC, and has a heat resistance, a chemical resistance and a bending rigidity which are almost identical to those of a lamp body formed of a polypropylene. Therefore, the lens and the lamp body can be bonded and integrated by a thermal welding method.

Lamp body for vehicle lighting unit and lighting unit for vehicle

A method of surface treatment for a lens of a vehicle lamp. The method comprises forming a hard coating film on a outer surface of the lens by heating to harden after the hard coating film is applied onto the outer surface of the lens; cooling the lens formed with the hard coating film until the inner surface of the lens has a predetermined temperature; and forming a antifogging coating film on a inner surface of the lens by heating to dry after the antifogging coating film is applied onto the inner surface of the lens.

Method of surface treatment for lens of vehicle lamp

A method of forming a uniform-thickness good-quality protective film with scratch-proofness and ultraviolet cutting characteristic on a plastic part having a diversified and complex three-dimensional shape without wasteful release of an organic solvent, or the like, into the atmosphere. In a plasma chemical vapor deposition apparatus, the shape of at least one part of a surface of a cathode provided in a reaction chamber is made coincident with the shape of a surface of a plastic part such as a car headlamp lens, or the like. The plastic part is attached to the cathode in the condition that the two surfaces coincident in shape come into contact with each other. High-frequency electric power is supplied between the cathode and the reaction chamber while a hydrogen gas and hexamethyldisilane (HMDS) as a raw material gas for forming a protective film are imported into the reaction chamber. Thus, a protective film is formed on the surface of the plastic part by vapor deposition.

Method of forming protective film on plastic part for vehicle-use and apparatus

A lamp for use in adverse conditions such as in a headlamp for a vehicle includes a coating for preventing mist, condensation or other haze from forming on a front lens and/or for preventing discoloration of the front lens caused by UV light emitted from a light source. The lamp has a discharge-lamp bulb serving as the light source, the discharge-lamp bulb being disposed in the lamp chamber. The lamp chamber can be defined by the lamp body and the front lens. The coating can comprise an anti-haze/UV film that is prepared by mixing a UV absorbing material with an anti-haze material.

Vehicle lamp with protective film and method for making same

Growing community of inventors

Shizuoka, Japan

Hidetaka Anma