Mitsubishi Chemical Corporation

Hiroki Shibata

Toshiki Monden

Masashi Yokogi

Takeshi Nakamura

Takayuki Yoshida

Masaya Yamashita

Tomoko Maeda

Kenji Tsuruhara

Norikazu Konishi

Naoko Sumitani

Kei Uchiyama

Yoshie Takami

Rie Konishi

Kazuo Hirowatari

Sora Tomita

Yuichi Yayama

Yukie Nakashima

Yuuichi Yayama

Yohei Nishino

Shohei Tomita

A formed product produced by using a thermoplastic resin composition comprising a polycarbonate resin with a repeating unit (A) represented by the following general formula (1) and a repeating unit (B) represented by the following general formula (2). Rand Rindependently denote a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group. The alkyl groups in Rand Rmay be bonded together to form a ring. Rand Rindependently denote a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted aryl group. X denotes a single bond or a divalent organic group represented by the following general formula (3). Rto Rindependently denote a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted aryl group. Rdenotes a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group.

Thermoplastic resin composition and formed product

A bisphenol composition including 95% or more by mass of a bisphenol, wherein a bisphenol represented by the following general formula (II) in the bisphenol composition constitutes 150 mass ppm or more, and the bisphenol composition has a methanol dissolution color (Hazen color number) of 2 or less, In formula (II), X denotes a single bond, —CRR—, —O—, —CO—, —S—, —SO—, or —SO—, Rand Rindependently denote a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and Rand Rmay be bonded to each other to form a ring. A method for producing a polycarbonate resin using the bisphenol composition is also described.

Bisphenol composition and polycarbonate resin

Provided is an aromatic polycarbonate resin composition that exhibits an excellent surface hardness and strength as well as an excellent designability and lightfastness. The aromatic polycarbonate resin composition contains a carbonate structural unit (X) derived from an aromatic dihydroxy compound represented by a prescribed formula (1) and a carbonate structural unit (Y) derived from an aromatic dihydroxy compound represented by a prescribed formula (2) in a proportion of (X)/(Y)=10/90 to 40/60 as a molar ratio, wherein an amount of a cresolic hydroxy group derived from the aromatic dihydroxy compound represented by formula (1) is 60 to 160 ppm.

Aromatic polycarbonate resin composition

The present invention provides a polyhydric phenol compound which has an excellent alkali resistance and which does not cause a deterioration in color even when used as a resin raw material or a color developer. The polyhydric phenol compound includes: a bisphenol compound (A) represented by the following Formula (1) and a trisphenol compound (B) represented by the following Formula (2): [wherein Rrepresents a monovalent aliphatic hydrocarbon group having from 6 to 24 carbon atoms; each of R, R, R, Rand Rrepresents a monovalent hydrocarbon group having from 1 to 15 carbon atoms; and each of a, b, c, d and e represents an integer from 0 to 4];

Polyhydric phenol compound and method of producing same

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Chiyoda-ku, Japan

Hiroki Shibata