Toyo Seikan Kaisha, Ltd.

Osaka Oxygen Industries, Ltd.

Ferro Enamels (japan) Limited

Tokan Material Technology Co., Ltd.

Toyo Seikan Group Holdings, Ltd.

Shigeru Suzuki

Kazuaki Ohashi

Kazuhiro Sato

Munenori Ryo

Yasuhiro Kosaka

Daisuke Hiratsuka

Akira Ishiko

Takahiro Kawakami

Taichi Tagawa

Masafumi Toyama

Anzu Kasai

Tatsuo Matoda

Toyotaro Maki

Shuzo Mihara

Taketo Shinchi

Shigeru Kikuchi

Jinji Tani

Shingo Tominaga

The present invention is directed to a bismuth oxide-based additive for laser marking containing oxygen-deficient bismuth oxide represented by the general formula: BiO(provided that x is 0.01 or more and 0.3 or less and x represents the amount of oxygen deficiency calculated according to the formula: x=3&#x2212;O/Bi&#xd7;2 from the ratio (O/Bi) of the peak area attributed to the 1s electrons of oxygen bonded to bismuth to the peak area attributed to the 4f electrons of bismuth obtained by X-ray photoelectron spectrometry), which enables marking with excellent blackness and contrast without causing undesirable coloration of a resin composition regardless of the type or shape of a resin to be used.

Bismuth oxide-based addictive for laser marking

[Problems] To provide a resin composition containing ultrafine silver particles and having excellent antibacterial property as well as excellent deodorizing power against both the nitrogen type smelling components and the sulfur-containing smelling components. [Means for Solution] A resin composition obtained by heating and mixing a resin composition, a silver carboxylate and a carboxylic acid together. A thermoplastic resin, the silver carboxylate and the carboxylic acid are heated and mixed together at a temperature lower than a temperature at which the silver carboxylate starts decomposing but not lower than a melting point of the thermoplastic resin.

Resin composition containing ultrafine silver particles

An adsorptive composition comprising a composition that contains at least one kind of fatty acid metal salt of any one of Ni, Cu or Co and ultrafine metal particles having a plasmon absorption over 300 to 700 nm. The adsorptive composition has an excellent effect of adsorbing both amine-type smelling components and sulfur-containing smelling components.

Adsorptive composition and adsorptive molded article

Adsorptive ultra-fine metal particles having a bond between an organic acid component and a metal, and exhibiting an infrared absorption peak derived from the bond between the organic acid component and the metal near 1518 cm. The adsorptive ultra-fine metal particles are capable of exhibiting excellent deodorizing property and VOC-adsorbing property without impairing properties and formability of the resin. The invention is further concerned to an adsorptive resin composition and an adsorptive coating material containing the adsorptive ultra-fine metal particles and are capable of forming shaped resin articles or coatings.

Adsorptive ultra-fine metal particles

Microprotein-inactivating ultrafine metal particles comprising ultrafine metal particles having a bond between an organic acid component and a metal, having an infrared absorption peak ascribable to the bond between the organic acid and the metal near 1518 cm, and capable of efficiently inactivating microproteins without impairing properties of the resin or formability thereof. When used in the form of a resin composition or a coating agent, the microprotein-inactivating ultrafine metal particles are capable of exhibiting an effect for inactivating microproteins.

Microprotein-inactivating ultrafine metal particles

Method of manufacturing inorganic pigment

A process for deodorizing an exhaust gas containing at least one smelly material selected from the group consisting of acidic smelly materials, such as hydrogen sulfide, mecaptans, dimethyl sulfide, dimethyl disulfide and the like; basic smelly materials, such as ammonia, amines and the like; and smelly organic material, such as ketones, alcohols, aldehydes, carboxylic acids and the like is disclosed. Vapor-liquid contact of the exhaust gas with a sodium hypochlorite solution is caused in the presence of a catalyst which is a mixture of nickel peroxide and at least one carrier. In the presence of the catalyst, placed in a column, sodium hypochlorite solution falling from the upper portion of the column contacts exhaust gas rising from the lower portion of the column to promote catalyst oxidation reaction. The amount of sodium hypochlorite solution fed into the upper portion of column is adjusted so that the concentration of the sodium hypochlorite solution in the bottom of column is maintained at such a desired value that optimum oxidation reaction occurs, and sodium hydroxide solution is added to the sodium hypochlorite solution so that pH of the sodium hypochlorite solution in the bottom of the column is kept within the range of from 7.5 to 11.0.

Process for deodorizing exhaust gas containing smelly components

Growing community of inventors

Osaka, Japan

Shigeru Suzuki