Mitsubishi Chemical Corporation

Mitsubishi Plastics, Inc.

Ishikawajima-harima Jukogyo Kabushiki Kaisha

Haruo Sasaki

Masashi Yokogi

Kazuya Tanaka

Shinji Matsuoka

Tomohiko Tanaka

Kouichirou Taniguchi

Mitsufumi Nodono

Michiaki Fuji

Masato Andou

Yuichiro Fujikawa

Hiroyoshi Kaito

Hiroaki Otonari

Akira Kosuge

Seiya Yamashita

The invention is to provide a polycarbonate resin composition having excellent light resistance, transparency, hue, heat resistance, thermal stability, and mechanical strength. The invention relates to a polycarbonate resin composition which includes a polycarbonate resin at least containing structural units derived from a dihydroxy compound having the portion represented by the following general formula (1) as part of the structure thereof, the polycarbonate resin composition giving a molded object which has a haze of 12 or less as measured in accordance with a specific manner. (The case where the portion represented by the general formula (1) is part of &#x2014;CH&#x2014;O&#x2014;H is excluded).[Chem. 1]CH&#x2014;O&#x2003;&#x2003;(1)

Polycarbonate resin composition and molded article

An object of the present invention is to provide a polycarbonate resin composition and a molded article, which are excellent in jet-blackness, image sharpness, impact resistance, scratch resistance owing to high hardness, flame retardancy and heat retention stability. The present invention provides a resin composition comprising a polycarbonate resin comprising a structural unit derived from a cyclic ether structure-containing dihydroxy compound and a coloring agent, which is a polycarbonate resin composition having an L* value of 6 or less as measured by the reflected light method of JIS K7105; and a molded article using the resin composition. The resin composition and the molded article of the present invention can be used over a wide range of fields allowing a product to be imparted with a high-grade appearance and a dignified impression.

The invention is to provide a polycarbonate resin composition and a molded polycarbonate resin article which combine excellent transparency and strength and which are suitable for use in the field of building materials, electrical/electronic field, automotive field, field of optical parts, etc. The invention relates to a polycarbonate resin composition containing a polycarbonate resin and an impact strength modifier, the polycarbonate resin containing structural units which are derived from a dihydroxy compound that has the portion represented by the following general formula (1) as part of the structure thereof and having a glass transition temperature lower than 145&#xb0; C. and a molded polycarbonate resin article obtained by molding the composition. The polycarbonate resin composition gives a molded object having a thickness of 3 mm which has a total light transmittance of 60% or higher.CH&#x2014;O&#x2003;&#x2003;(1)

Polycarbonate resin compositions, and molded articles, films, plates, and injection-molded articles obtained therefrom

The present invention relates to a polycarbonate resin composition, comprising: a polycarbonate resin containing a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) [provided that a case where the moiety represented by formula (1) is a moiety constituting &#x2014;CH&#x2014;O&#x2014;H is excluded]; and an elastomer composed of a core&#x2022;shell structure, wherein a core layer of the elastomer is at least one member selected from the group consisting of an alkyl (meth)acrylate and a (meth)acrylic acid, and a polycarbonate resin molded article obtained by molding the polycarbonate resin composition:CH&#x2014;O&#x2003;&#x2003;(1).

Polycarbonate resin composition and molded article thereof

The present invention relates to a polycarbonate resin composition, comprising: a polycarbonate resin containing a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) [provided that a case where the moiety represented by formula (1) is a moiety constituting &#x2014;CH&#x2014;O&#x2014;H is excluded]; and an elastomer composed of a core&#x25cf;shell structure, wherein a core layer of the elastomer is composed of a butadiene-styrene copolymer, and a polycarbonate resin molded article obtained by molding the polycarbonate resin composition:CH&#x2014;O&#x2003;&#x2003;(1).

A polycarbonate resin composition (X), comprises: (A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) in a part of a structure; and (B) an aromatic polycarbonate resin, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt % or more, and a total light transmittance of the polycarbonate resin composition (X) is 90% or less:CH&#x2014;O&#x2003;&#x2003;(1).

Polycarbonate resin composition

The present invention relates to a polycarbonate resin composition (X) which includes a polycarbonate resin (A) and an aromatic polycarbonate resin (B), the polycarbonate resin (A) including a constitutional unit derived from a dihydroxy compound (a) having, as part of the structure thereof, a site represented by the following formula (1) and a constitutional unit derived from a dihydroxy compound (b) of an aliphatic hydrocarbon, wherein the proportion of the constitutional unit derived from the dihydroxy compound (b) of an aliphatic hydrocarbon based on all constitutional units each derived from a dihydroxy compound in the polycarbonate resin (A) is 45% by mole or more. (The case where the site represented by the formula (1) is part of &#x2014;CH&#x2014;O&#x2014;H is omitted.)

Polycarbonate resin composition, and molded object, film, plate, and injection-molded article obtained by molding the same

A column belt is between upper and lower reduced-diameter columns and is only in the vicinity of and across the water surface so that the heave resonant period is increased which is due to the effect of the shape of the column belt.

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Fukuoka, Japan

Haruo Sasaki