Abstract: A powder for an air electrode in a solid oxide fuel cell, the powder consisting of: a metal composite oxide having a perovskite-type single phase crystal structure represented by A11-xA2xBO3-?, where the element A1 is at least one selected from the group consisting of La and Sm, the element A2 is at least one selected from the group consisting of Ca, Sr, and Ba, the element B is at least one selected from the group consisting of Mn, Fe, Co, and Ni, 0<x<1, and the ? is an oxygen deficiency amount. When a cross section of a molded body obtained by compression molding the powder is observed at a magnification of 500 times, and a characteristic X-ray intensity of the element B is measured by an energy dispersive X-ray spectroscopy, the number of regions each having an intensity of 50% or higher of a maximum of the characteristic X-ray intensity of the element B and occupying 0.04% by area or more of the observation field of view is five or less.

Abstract: There is disclosed a flame retardative polycarbonate resin composition which comprises 100 parts by weight of an aromatic polycarbonate resin (A), 0.01 to 0.5 part by weight of an alkali/or alkaline-earth metal salt of a perfluoroalkanesulfonic acid (B), 0.03 to 5 parts by weight of an organopolysiloxane containing organoxysilyl group bonded to a silicon atom through a divalent hydrocarbon group (C), and optionally 5 to 120 parts by weight of an inorganic filler. The above composition has excellent flame retardancy capable of preventing dripping thereof at the time of combustion of a thin-walled material made from the highly fluidized composition while maintaining the dimensional stability and the mechanical properties such as impact resistance that are inherent in polycarbonate.

Abstract: 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.

Abstract: A polycarbonate resin composition comprising (A) 100 parts by weight of a polycarbonate resin, and (B) 1 to 80 parts by weight of an acrylic ester graft copolymer. The acrylic ester graft copolymer is produced by grafting on 100 parts by weight of an acrylic ester copolymer produced by copolymerizing (i) 100 parts by weight of at least one acrylic ester monomer having 1 to 16 carbon atoms and (ii) 0.1 to 5 parts by weight of a polyfunctional allyl ester monomer and/or a polyfunctional methallyl ester monomer having a benzene ring as a skeleton; a copolymer of (iii) 15 to 100 parts by weight of (a) one or two vinyl monomers selected from the group consisting of a methacrylic ester, an aromatic monovinyl compound and a vinyl cyanide compound, and (b) an acrylic ester in an amount of 0 to 20% by weight to the vinyl monomer and (iv) 0.1 to 5 parts by weight of a polyfunctional allyl ester monomer and/or a polyfunctional methallylester monomer having a benzene ring as a skeleton.

Abstract: A polycarbonate composition comprising (A) 100 parts by weight of a polycarbonate resin and (B) 1 to 80 parts by weight of an isoprene-base graft copolymer, wherein; said isoprene-base graft copolymer (B) is prepared by polymerizing(a) 20 to 100 parts by weight of one or more vinyl monomers selected from the group consisting of acrylic esters, methacrylic esters, aromatic monovinyl compounds, and cyanovinyl compounds, and(b) 0 to 5 parts by weight of a polyfunctional vinyl monomer in the presence of(c) 100 parts by weight of a copolymer having an isoprene content of 5 to 100% by weight and an acrylic ester content of 0 to 95% by weighthas excellent thermal stability, low temperature impact resistance, jet-black colorability, and solvent resistance. Such a polycarbonate composition is suitable as a material for moldings in the fields of automobiles, home electric appliances, etc.

Abstract: A polycarbonate resin composition which comprises(i) bisphenol type aromatic polycarbonate, in admixture with(ii) 5 to 200 parts by weight of a polyester type copolymer, per 100 parts by weight of said bisphenol type aromatic polycarbonate, which is produced by adding(a) 5 to 100 parts by weight of bisphenol type aromatic polycarbonate having a viscosity-average molecular weight of not less than 5,000,to (b) 100 parts by weight of a polyester precursor having a number-average polymerization degree of 1 to 30 which is obtained from bifunctional carboxylic acid mainly composed of terephthalic acid or a derivative thereof having an ester forming ability and a diol component, and effecting polycondensation,which provides an improved fluidity and solvent cracking resistance without remarkably decreasing of the original impact resistance and transparency of polycarbonate, to eliminate the defects of polycarbonate.

Abstract: Polycarbonate resin compositions are disclosed, comprising: (1) (A) a polycarbonate resin and (B) polyesterether elastomer, said elastomer composing of a bifunctional carboxylic acid component and a glycol component comprising polyalkylene glycol and ethylene glycol, or (2) the components (A) and (B), and (C) a rubber-like elastomer, or (3) the components (A) and (B), and (D) a polyester resin, or (4) the components (A), (B), (C) and (D). These compositions are excellent in solvent resistance and so forth, and further possess excellent physical and thermal properties characteristic of a polycarbonate resin. Thus the compositions are useful for use in production of industrial and electrical articles, such as a car bumper in the field of car industry.