Mitsubishi Gas Chemical Company, Inc.

Mitsubishi Engineering-plastics Corporation

Jungo Taguchi

Hidefumi Harada

Takehiko Isobe

Keisuke Shimokawa

Takashi Kubo

Akihiro Masuda

Yoshinori Isahaya

Tatsuo Iwai

Keisuke Tomita

Yoshiki Itou

Kiyonori Michiba

Kazuyuki Minato

Kenichi Niimi

Takayoshi Itoh

Provided is a polycarbonate resin having a structural unit (I) represented by formula (1) below: wherein Land Leach independently represent a divalent linking group selected from an alkylene group, a cycloalkylene group, an arylene group, an oxyalkylene group, an oxyarylene group, and a group formed by combining two or more of these, where one or more hydrogen atoms of the linking group are optionally further replaced with substituents, and two of the substituents are optionally bonded to each other to form a ring structure.

Polycarbonate resin

A polycarbonate resin composition containing 0.1 to 10 parts by mass of a polycarbonate copolymer (B) having carbonate bonding between (B1) bisphenol A and a (B2) polyalkylene glycol and 0.005 to 0.5 parts by mass of a phosphorus-containing stabilizer (C) relative to 100 parts by mass of a polycarbonate resin (A).

Polycarbonate resin composition

Disclosed are a diaryl carbonate containing a compound of the following formula (I) in an amount of less than 1,000 ppm by mass, and a method for producing the same:  wherein Rrepresents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, or an aryloxy group. Disclosed methods include reacting urea with an alkyl alcohol to provide a dialkyl carbonate; reacting the dialkyl carbonate with an aryl alcohol to provide an alkylaryl carbonate; subjecting the alkylaryl carbonate to disproportionation to yield a mixture comprising a diaryl carbonate; and purifying the mixture.

Diaryl carbonate and method for producing the same, and method for producing an aromatic polycarbonate resin

An oxygen-absorbing container includes a container body having a multilayer structure constituted by an innermost layer, an outermost layer and an intermediate layer therebetween, the container body having an opening part on an upper part thereof; and a sealing member bonded to an upper end surface of the opening part of the container body to seal an opening of the opening part. The innermost layer and the intermediate layer are bent outward at an upper end of the opening part and form a flat part and a surface of the flat part forms the upper end surface of the opening part. When the sealing member is unsealed, part of the innermost layer on the upper end surface of the opening part is configured to be peeled off so as to leave an unsealed mark.

Container

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Saitama, Japan

Jungo Taguchi