Patent application number | Description | Published |
20100267880 | POLYCARBONATE RESIN COMPOSITION, MOLDED POLYCARBONATE RESIN ARTICLE, AND METHOD FOR PRODUCTION OF THE MOLDED POLYCARBONATE RESIN ARTICLE - 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 μm or more and less than 50 μm; glossy particles (C-2) having an average particle diameter of 50 to 300 μm; 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° C. or higher. | 10-21-2010 |
20100286321 | 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 μm or more and less than 50 μm; glossy particles (C-2) having an average particle diameter of 50 to 300 μm; 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° C. or higher. | 11-11-2010 |
20110021678 | POLYCARBONATE RESIN COMPOSITION, MOLDED POLYCARBONATE RESIN, AND PROCESS FOR PRODUCING THE SAME - Disclosed are a polycarbonate resin composition characterized by containing, with respect to 100 parts by mass of a composition formed of (A) 90 to 99 parts by mass of an aromatic polycarbonate resin and (B) 1 part by mass or more and less than 10 parts by mass of a glass filler having a refractive index smaller or larger than that of the aromatic polycarbonate resin by 0.002 or less, (C) 0.01 to 3.0 parts by mass of glossy particles, (D) 0.01 to 3.0 parts by mass of a silicone compound having a reactive functional group, and (E) 0.03 to 1.0 part by mass of an organic alkali metal salt compound and/or an organic alkaline earth metal salt compound, and a polycarbonate resin molded article obtained by molding the composition. The composition may be blended with (F) 0.0001 to 1 part by mass of a colorant as required. Provided are a polycarbonate resin composition having the following characteristics, a polycarbonate resin molded article obtained by molding the resin composition, and a method of producing the polycarbonate resin molded article: the resin composition contains a specific amount of a glass filler with respect to a PC resin composition, no difference in lightness is observed between the left and right of a weld line, and the resin composition is excellent in strength and flame retardancy. | 01-27-2011 |
20110028634 | POLYCARBONATE RESIN COMPOSITION, MOLDED POLYCARBONATE RESIN, AND PROCESS FOR PRODUCING THE SAME - Provided are a polycarbonate resin composition which includes a specific amount of a glass filler and a specific amount of a glossy particle and is excellent in optical characteristics and flame retardancy, and in which difference in brightness between a left half and a right half of a weld line of a molded product is not visually observed, a polycarbonate resin molded article, and a method for producing the polycarbonate resin molded article. The polycarbonate resin composition includes, with respect to 100 parts by mass of a composition composed of (A) more than 90 parts by mass and 99 parts by mass or less of an aromatic polycarbonate resin containing 10 to 40 parts by mass of a polycarbonate-polyorganosiloxane copolymerized resin and (B) 1 part by mass or more and less than 10 parts by mass of a glass filler having a difference in a refractive index of 0.002 or less from the aromatic polycarbonate resin, (C) 0.01 to 3.0 parts by mass of a glossy particle and (D) 0.05 to 2.0 parts by mass of a silicone compound having a reactive functional group. | 02-03-2011 |
20120220708 | POLYCARBONATE RESIN COMPOSITION, POLYCARBONATE RESIN MOLDED ARTICLE, AND MANUFACTURING METHOD THEREFOR - Provided are a polycarbonate resin composition including, with respect to 100 parts by mass of (A) an aromatic polycarbonate resin, 0.05 to 0.3 part by mass of (B) titanium oxide having an average particle diameter of 0.05 to 6 μm, and (C) 0.005 to 1 part by mass of (C-1) glossy particles having an average particle diameter of 10 μm or more and less than 60 μm, and 0.005 to 2.5 parts by mass of (C-2) glossy particles having an average particle diameter of 60 to 300 μm, a polycarbonate resin molded article obtained by molding the resin composition, and a method of producing a polycarbonate resin molded article characterized by including subjecting the resin composition to injection molding at a mold temperature of 120° C. or more. The polycarbonate resin composition of the present invention is capable of providing a molded article having reduced visibility of a weld line fusion portion, no visible difference in luminosity between the left and right sides of a weld line, and a good metallic or galactic appearance, and is excellent in heat resistance and mechanical properties. | 08-30-2012 |
20120220709 | POLYCARBONATE RESIN COMPOSITION, POLYCARBONATE RESIN MOLDED ARTICLE, AND MANUFACTURING METHOD THEREFOR - Provided are: a polycarbonate resin composition, including, with respect to 100 parts by mass of a glass fiber-containing resin component formed of 60 to 90 mass % of (A) an aromatic polycarbonate resin, 5 to 20 mass % of (B) such glass fibers that a difference in refractive index between the aromatic polycarbonate resin and each of the fibers is 0.02 or less, and 5 to 25 mass % of (C) a polymethyl methacrylate resin, (D) 0.005 to 1.5 parts by mass of (D-1) glossy particles having an average particle diameter of 10 μm or more and less than 60 μm, and 0.005 to 5 parts by mass of (D-2) glossy particles having an average particle diameter of 60 to 300 μm, and 0.05 to 0.4 part by mass of (E) titanium oxide having an average particle diameter of 0.05 to 3 μm; a resin molded article obtained by molding the resin composition; and a method of producing the resin molded article. The polycarbonate resin composition is capable of providing a molded article having reduced visibility of a weld line fusion portion, no visible difference in luminosity between the left and right sides of a weld line, and a good metallic or galactic appearance, the composition being excellent in heat resistance and mechanical properties. | 08-30-2012 |
20140106208 | POLYCARBONATE RESIN COMPOSITION FOR BATTERY PACK, AND BATTERY PACK - A polycarbonate resin composition for a battery pack, which comprises: 100 parts by mass of (A) a polycarbonate-based resin composed of 5 to 100 mass % of a polycarbonate-polyorganosiloxane copolymer (A-1) whose main chain is formed of a structural unit represented by the general formula (I) and a structural unit represented by the general formula (II), and that contains 2 to 10 mass % of a polyorganosiloxane block, and 0 to 95 mass % of an aromatic polycarbonate (A-2) except the copolymer (A-1); and 0.01 to 1 parts by mass of (B) a phosphorus-based antioxidant; and a battery pack formed by using the resin composition. | 04-17-2014 |
20140364546 | POLYCARBONATE RESIN COMPOSITION PELLETS AND PROCESS FOR MANUFACTURING SAME - Provided is a polycarbonate resin composition pellet, which has a light transmittance at a wavelength of 380 nm of 97.0% or more when the light transmittance is measured by using a methylene chloride solution having a concentration of 12 g/dL, the solution being charged into a quartz glass cell having an optical path length of 5 cm, and which has a viscosity-average molecular weight (Mv) of from 11,000 to 22,000. | 12-11-2014 |