Idemitsu Kosan Company, Limited

Idemitsu Petrochemical Co., Ltd.

Sumitomo Chemical Company, Limited

Dow Corning Toray Silicone Company Limited

Kouji Satou

Toshio Isozaki

Satoshi Tamura

Takayoshi Tanaka

Hiroshi Itagaki

Haruhiko Furukawa

Mitsuji Tsuji

Nobuyuki Yoshida

Yoshio Tanimoto

Takashi Umeda

Kazuto Hashimoto

Eiichi Usuda

Disclosed are a polycarbonate resin composition comprising, with respect to 100 parts by mass of a composition composed of (A) 60 to 90 parts by mass of an aromatic polycarbonate resin and (B) 40 to 10 parts by mass of a glass filler having a refractive index smaller or larger than a refractive index of the aromatic polycarbonate resin by 0.002 or less, (C) 0.05 to 2.0 parts by mass of a silicone compound having a reactive functional group, (D) 0.03 to 1.0 part by mass of an organic alkali metal salt compound and/or an organic alkaline earth metal salt compound, (E) 0.05 to 7.0 parts by mass of glossy particles, and (F) 0.0001 to 3 parts by mass of a colorant, a polycarbonate resin molded article obtained by molding the composition, and a method for producing the molded article by molding the polycarbonate resin composition. Provided are a polycarbonate resin composition containing a glass filler, which is excellent in transparency, strength, and heat resistance, and provided with high flame retardancy, a polycarbonate resin molded article obtained by molding the resin composition, and a method of producing the molded article.

Polycarbonate resin composition, polycarbonate resin molded article, and method for producing the same

Provided is a polycarbonate resin composition which contains specific amounts of a glass filler and glossy particles, which can be molded into an article in which no difference in lightness is visually observed between the left side and the right side of the weld line, and which has excellent optical properties and flame retardancy. The polycarbonate resin composition contains: a composition formed of an aromatic polycarbonate resin (A) and a glass filler (B) having a difference in refractive index 0.002 or less from the aromatic polycarbonate resin of; glossy particles (C-1) having an average particle diameter of 10 &#x3bc;m or more and less than 50 &#x3bc;m; glossy particles (C-2) having an average particle diameter of 50 to 300 &#x3bc;m; a silicone compound (D) having a reactive functional group; and an organic alkali metal salt compound and/or an organic alkali earth metal salt compound (E). Also provided are a polycarbonate resin molded article produced by molding the resin composition, and a method of producing a polycarbonate resin molded article, which is characterized by involving subjecting the resin composition to an injection molding at a mold temperature of 120&#xb0; C. or higher.

Polycarbonate resin composition, molded polycarbonate resin article, and method for production of the molded polycarbonate resin article

Provided are: a polycarbonate resin composition which is excellent in mechanical properties, physical properties, optical properties, and flame retardancy, including: a composition formed of an aromatic polycarbonate resin (A) and a glass filler (B) having a difference in refractive index of 0.002 or less from the aromatic polycarbonate resin; glossy particles (C-1) having an average particle diameter of 10 &#x3bc;m or more and less than 50 &#x3bc;m; glossy particles (C-2) having an average particle diameter of 50 to 300 &#x3bc;m; and a silicone compound (D) having a reactive functional group; a polycarbonate resin molded article obtained by molding the polycarbonate resin composition; and a method of producing a polycarbonate resin molded article, involving subjecting the polycarbonate resin composition to injection molding at a mold temperature of 120&#xb0; C. or higher.

Provided are a polycarbonate resin composition containing a glass filler, which is excellent in transparency, strength, and heat resistance and provided with high flame retardancy even without using a flame retardant, and a polycarbonate resin molded article obtained by molding the resin composition. The flame-retardant polycarbonate resin composition contains a combination including (A) 55 to 95 mass % of an aromatic polycarbonate resin containing a polycarbonate-polyorganosiloxane copolymer and (B) 45 to 5 mass % of a glass filler having a refractive index smaller or larger than a refractive index of the aromatic polycarbonate resin by 0.002 or less, and (C) 0.05 to 20.0 parts by mass of a silicone compound having a reactive functional group with respect to 100 parts by mass of the combination. The polycarbonate resin molded article has a thickness of 0.3 to 10 mm which is obtained by molding the composition.

Flame-retardant polycarbonate resin composition, polycarbonate resin molded article, and method for producing the polycarbonate resin molded article

Provided are a polycarbonate resin composition containing a glass filler, which is excellent in transparency, strength, and heat resistance and provided with high flame retardancy, and a polycarbonate resin molded article obtained by molding the resin composition. The flame-retardant polycarbonate resin composition contains a combination including (A) 55 to 95 mass % of an aromatic polycarbonate resin and (B) 45 to 5 mass % of a glass filler having a refractive index smaller or larger than a refractive index of the aromatic polycarbonate resin by 0.002 or less, and further contains, with respect to 100 parts by mass of the combination, (C) 0.05 to 2.0 parts by mass of a silicone compound having a reactive functional group and (D) 0.03 to 0.4 part by mass of an organic alkali metal salt compound and/or an organic alkaline earth metal salt compound. The polycarbonate resin molded article has a thickness of 0.3 to 10 mm which is obtained by molding the composition.

Polypropylene resin-based films and sheets

A polycarbonate resin comprising (A) a thermoplastic resin comprising a polycarbonate resin as the main component thereof, (B) inorganic fillers and/or inorganic pigments and (C) an organopolysiloxane having an organoxysilyl group which is bonded to a silicon atom through a divalent hydrocarbon group is provided. The polycarbonate resin shows a lesser degree of molecular weight decrease, has excellent heat stability and moldability, and provides molded articles having excellent appearance, mechanical properties like impact resistance, degree of whiteness and color tone. The polycarbonate resin can be applied to production of various kinds of molded articles, such as molded articles in the field of office automation instruments, electric and electronic products, automobiles, mechanical products, building materials and the like.

Polycarbonate resin composition

An adhesive composition comprising a modified, ethylene/.alpha.-olefin copolymer rubber or a modified, ethylene/.alpha.-olefin/non-conjugated diene copolymer rubber containing 0.1-10% by weight of at least one member selected from the group consisting of an acid anhydride and a dicarboxylic acid, and, if necessary, as an amine compound,

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Chiba, Japan

Kouji Satou