Mitsubishi Gas Chemical Company, Inc.

Other

Mgc Filsheet Co., Ltd.

Mgc Filseet Co., Ltd.

Yoshiyuki Aoki

Norio Takeda

Osamu Aoki

Tomiya Isshiki

Mitsuo Miura

Tetsuo Tomita

Shuzabu Sakaguchi

Ryozo Kawai

Toshiaki Kohzaki

Motoharu Takeuchi

Takao Kondo

Takanari Nawata

Masafumi Shimpo

Kyohei Takakuwa

Mitsuhiko Masumoto

Kaoru Tsuyuki

Mitsuo Abe

Toshiaki Kozaki

Eiko Aoki, Legal Representative

Masahiko Namiki

Toshizumi Hirota

Motoharu Mitsubishi Gas Chem Co Inc Takeuchi

Toshizumi Mitsubishi Gas Chem Co Inc Hirota

A laminated body of the present invention includes a melanin-containing layer, wherein the melanin-containing layer is formed by curing a composition that includes at least a melanin, a polymerizable monomer, and a urethane-derived composition. The composition for the laminated body of the present invention is used for producing the laminated body and includes at least a melanin, a polymerizable monomer, and a urethane-derived composition. The optical product of the present invention is formed including the laminated body.

Laminated body for optical purposes that includes a melanin-containing layer and an optical product which includes the laminate

A light control plastic lens, a sheet-like light control element, and a production method for light control plastic lenses are provided. More specifically, a light control plastic lens, such as a high index polarizing property and/or a photochromic plastic lens that is made by cast polymerization is provided. Also provided is a sheet-like light control element for use in the production of the lenses, as well as a production method of such light control plastic lenses. The light control plastic lens has a sheet-like light control element including at least a light control sheet. In particular, the light control plastic lens has a sheet-like light control element, a curable resin layer laminated on at least one surface of the sheet-like light control element, and a polymerizable lens resin layer laminated at least on the curable resin layer.

Light control plastic lens, coated sheet-like light control element for the lens production, and a production method for light control plastic lens

A process for continuously preparing benzophenone-azines comprising oxidizing benzophenone-imines with molecular oxygen or a molecular oxygen-containing gas in the presence of a copper halide catalyst is disclosed. The oxidation reaction is carried out in a multistage system under an oxygen partial pressure gradually decreasing from the former stage to the latter stage and at a conversion gradually decreasing from the former stage to the latter stage, while controlling the conversion so that the molar ratio of the benzophenone-imines to the copper halide in the final stage be maintained at 1 or more. By the process, the continuous reaction can stably be performed at a high conversion of the benzophenone-imines without involving insolubilization and sedimentation of the catalyst.

Process for preparing benzophenone-azines

A process for producing a benzophenone-azine which comprises reacting the corresponding benzophenone-imine with molecular oxygen or benzophenone with ammonia and molecular oxygen in the presence of a catalyst selected from the group consisting of metals, metal oxides and alloys of two or more metals, particularly copper or copper alloy-containing catalyst, is disclosed.

Process for producing benzophenone-azines

Hydrazine sulfate having a relatively large particle diameter and a high purity is produced by hydrolysis of benzophenoneazines by sulfuric acid having a concentration of 75% by weight or less in an amount of 1.1 times by mole or more the stoichiometric amount in a very high conversion and a high yield with less operational loss.

Process for producing hydrazine sulfate

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Tokyo, Japan

Yoshiyuki Aoki