Mitsui Chemicals, Inc.

Shintaro Maekawa

Yoshiyuki Totani

Hitoshi Onishi

Kosuke Mano

Kazuo Kohmura

Yosuke Ono

Daiki Taneichi

Tsuneaki Biyajima

Shinichi Usugi

Akifumi Kagayama

Takashi Kozeki

Shunsuke Fujii

Provided is a compound represented by General Formula (1)

Compound, resin, polycarbonate resin, and optical molded article

The purpose of the present invention is to provide: a pellicle frame which is not susceptible to deterioration even if irradiated with short-wavelength light such as excimer light, and which is not susceptible to generation of an outgas or foreign substance; and a pellicle which uses this pellicle frame. In order to achieve the above-described purpose, this pellicle frame for supporting the outer periphery of a pellicle film is configured to comprise a frame and a film that is formed on the surface of the frame and contains a polyimide resin.

Pellicle frame, pellicle containing same, method for producing pellicle frame, and method for producing pellicle

Disclosed are a biodegradable resin composition comprising a copolymer (A) with a weight average molecular weight of 1,000 to 30,000, which comprises a constituent unit (a-1) derived from a multivalent carboxylic acid except for an amino acid and a constituent unit (a-2) derived from a hydroxycarboxylic acid, and a biodegradable resin (B), which has excellent hydrolyzability and excellent transparency; and a biodegradable molded article composed of this biodegradable resin composition.

Biodegradable resin composition and molded article of the same

The purpose of the invention is to provide a resin, which has a high refractive index, excellent heat resistance and moldability, and high transparency, and is useful as a material for configuring optical devices, etc. The invention provides a resin comprising acyl hydrazone bonds and having a number average molecular weight of 500-500,000, wherein the acyl hydrazone bond equivalent is 100-4000.

Resin, optical material, and optical device

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Ichihara, Japan

Shintaro Maekawa