E.i. Dupont De Nemours and Company

Orient Chemical Industries, Ltd.

Mita Industrial Co., Ltd.

Orient Chemical Industries Co., Ltd.

Yoshiteru Hatase

Reiko Koshida

Ryuichi Hayashi

Hiroyuki Sumi

Shuji Sugawara

Hideaki Kawata

Nobuaki Kawano

Hidekazu Tamura

Tomohide Iida

Syuuji Sugawara

Toshihiro Okanishi

Quinophthalone compound of Formula (1) or (2), mixed colorant, laser ray transmitting colored resin composition containing thereof, and laser-welded product. in each of Formulas (1) and (2),X: &#x2014;O-L; L: hydrogen atom, alkyl, aryl;Y represents hydrogen atom, hydroxyl, mercapto, alkoxy, aryloxy, heterocyclic oxy, acyloxy, alkylsulfonyloxy, arylsulfonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, alkylthio, arylthio, heterocyclic thio;Rto Rand Rto Rand Rto R: hydrogen atom, nitro, hydroxyl, mercapto, carboxyl, cyano, thiocyano, halogen atom, alkyl, cycloalkyl, aryl, amino, acyl, alkoxy, aryloxy, heterocyclic oxy, acyloxy, alkylsulfonyloxy, arylsulfonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, alkoxycarbonyl, cycloalkyloxycarbonyl, aryloxycarbonyl, heterocyclic oxycarbonyl, carbamoyl, sulfamoyl, alkylsulfonyl, arylsulfonyl, alkylthio, arylthio, heterocyclic thio, alkoxysulfonyl, cycloalkyloxysulfonyl, aryloxysulfonyl, heterocyclic oxysulfonyl;at least one of Rto Rin Formula (1) is carboxyl, at least one of Rto Rin Formula (2) is carboxyl.

Quinophthalone compound, mixed colorant, laser ray transmitting colored resin composition, and laser-welded product

Thermoplastic resin compositions suitable for laser welding are described in which black colorants are added. These colorants constitute amine salt of anthraquinone dyes. Additional dyes, coloring agents, and a variety of other materials may be added. These compositions demonstrate outstanding mechanical and chemical properties once laser-welded.

Colored thermoplastic resin compositions for laser welding, anthraquinone colorants therefor and molded product therfrom

Laser-welded article of laser-transmissible workpiece including alkaline earth metal salt of anthraquinone acidic dye

Thermoplastic resin compositions suitable for laser welding are disclosed, which include a mixture of neutral anthraquinone blue dye with other red dye to absorb visible light with wavelength less than 700 nm and transmit a laser beam with wavelength at 800 nm to 1200 nm and to enhance weldability.

Colored thermoplastic resin compositions for laser welding, specific neutral anthraquinone dyes as colorants therefor, and molded product therefrom

Thermoplastic resin compositions suitable for laser welding are disclosed, which include a mixture of neutral anthraquinone dyes and at least one other red dye to absorb and transmit select regions of visible light and to enhance weldability.

Novel fabricated resin products are described and having suitability for laser welding applications. These contain a resin part for transmitting black colorant and a resin part for absorbing black colorant.

Fabricated resin products for laser welding and including transmitting and absorbing black colorants, and colored resin compositions therefor

Thermoplastic resin compositions are disclosed that incorporate 1:2 metallic azo complex dyes and are particularly suitable for laser welding. These compositions include a variety of thermoplastic resins such as polyamides and copolymers and blends thereof. The compositions offer superior welding properties and provide for the welding of articles identically colored with these dyes.

Thermoplastic resin compositions for laser welding and articles formed therefrom

Laser ray transmitting colored thermoplastic resin composition containing a dis-azo salt forming dye consisting of an anionic component from a dis-azo acid dye and an organic ammonium component, said acid dye being represented by Formula (1) below,R&#x2014;N&#x2550;N-E-N&#x2550;N&#x2014;R; &#x2003;&#x2003;(1)E: (2), (3), (4); R, R: aryl, pyrazolone; one or more of E, R, Rhave sulfonic acid group, R, R: hydrogen atom, alkyl, sulfonic acid group, R, R: hydrogen atom, sulfonic acid group, R: sulfonic acid group. Method of laser welding wherein a contact portion of a laser ray transmitting material comprising the laser ray transmitting colored thermoplastic resin composition above and a laser ray absorbing material is welded by irradiating laser ray so that the laser ray passes through the laser ray transmitting material and is absorbed in the laser ray absorbing material with the laser ray transmitting material and the laser ray absorbing material in contact with each other.

Laser ray transmitting colored thermoplastic resin composition and method of laser welding

Thermoplastic resin compositions are described in which amine salts of anthraquinone dyes and monoazo complex dyes are added. These compositions show superior performance in laser welding applications.

Colored thermoplastic resin compositions for laser welding, colorants therefor of mixtures of amine salts of anthraquinone and monoazo complex dyes, and molded product therefrom

A magnetic carrier for electrophotographic developing agent wherein the surfaces of the magnetic core particles are partly coated with a thermosetting resin and a small amount of a low-melting or low-softening thermoplastic resin or wax, and at least recessed portions of the core particles are filled with these coating materials. The magnetic carrier has an electric resistance that is maintained within a range that is suited for forming the image, and suppresses the occurrence of spent toner.

Growing community of inventors

Osaka, Japan

Yoshiteru Hatase