摘要:
A graft-modified polyolefin resin is provided, which is obtained by preparing a aqueous suspension containing (a1) 100 parts by weight of a polyolefin resin, (a2) 0.1 to 30 parts by weight of a mixture of 1 to 1000 parts by weight of an unsaturated glycidyl ester to 100 parts by weight of a compound having a glycidyl group as represented by a general formula (I): ##STR1## wherein Ar is an aromatic hydrocarbon group of C.sub.6 -C.sub.23 having at least one glycidyloxy group, and R is a hydrogen atom or a methyl group, (a3) 0.1 to 500 parts by weight of a vinyl monomer, and (a4) 0.001 to 10 parts by weight of a radical initiator to 100 parts by weight in total of (a2) and (a3), to thus impregnate (a1) with (a2) and (a3), and polymerizing (a2) and (a3) onto (a1). Resin compositions containig the graft-modified polyolefin resin have not only well-balanced mechanical properties, but excellent moldability.
摘要:
With a view to realizing a titanium oxide structure that has a large surface area and enables efficient transfer of ions and electrons by virtue of titanium oxide particles connected to one another, an object of the invention is to develop a material useful as an active material for dye-sensitized solar cells, and a process for producing the material; a porous titanium oxide composition and a process for producing the composition; and a photoelectric conversion element comprising the titanium oxide structure or porous titanium oxide composition.
摘要:
With a view to realizing a titanium oxide composite that has a large surface area and that enables efficient transfer of electrons by covering a surface of rod-like or fibrous carbon with a covering layer comprising titanium oxide particles connected to one another, an object of the invention is to develop a material useful as an active material for dye-sensitized solar cells, and a process for producing the material; a porous titanium oxide-covered carbon material composition, and a process for producing the composition; and a photoelectric conversion element comprising the titanium oxide-covered carbon material or porous titanium oxide-covered carbon material composition.
摘要:
A disk storage system with a RAID architecture includes a write buffer having a storage capacity corresponding to one stripe, a buffer management table, and a controller. The controller stores, in the write buffer, logical blocks whose data lengths are changed, as needed, and delays updating of the logical blocks stored in the write buffer in data update processing until the number of stored logical blocks reaches N*K−1 The controller then performs a continuous write operation to sequentially write N*K logical blocks, obtained by adding a logical address tag block to the N*K−1logical blocks, in contiguous areas of empty areas different from the areas in which the old data are stored.
摘要:
A modified polypropylene resin obtained by melt-kneading a polypropylene resin, an isoprene monomer and a radical polymerization initiator, which has a high melt viscosity and a high melt tensile strengh and is hard to cause draw-down, and which provides, by foaming thereof, foamed articles having low density, high closed cell content, beautiful appearance and excellent heat resistance.
摘要:
A resin composition which includes (A) 100 parts of a blend of a polyacrylate and a poly(alkylene-phenylene ester) and (B) 1-50 parts of a chemically modified polyolefin copolymer exhibits superior impact resistance, particularly low temperature impact resistance, while retaining good melt viscosity for molding. The polyacrylate may be produced by polymerizing a dihydric phenol formula I: ##STR1## with an aromatic dicarboxylic acid, a dichloride derivative, an alkylated derivative or an arylated derivative thereof. The chemically modified polyolefin copolymer has a structural unit containing at least one amide group at and at least one glycidyloxy or glycidyl group, with the number of the structural unit contained in the copolymer being one per from 4 to 5,000 carbon atoms of the polyolefin moiety.
摘要:
For file access upon file reference (read request) without any file content update (data update) process, a write process for writing an i node of that file on a disk device is not executed (no write request is generated), and “i node latest access time” is updated on a kernel space to manage the i node.
摘要:
The present invention relates to a siloxane random copolymer having a repeating unit represented by the following general formula (I) (II) and (III) at random and a resin composition containing the same. ##STR1## Further, the invention relates to a process of producing a siloxane copolymer comprising the step of reacting at least one polycarbonate and/or dicarbonate of diol and, if needed, at least one diester of dicarboxylic acid with at least one specified silicon compound in the presence of an esterifying or ester exchange catalyst.
摘要:
Thermoplastic resin compositions having excellent heat distortion resistance, impact resistance, chemical resistance and molding properties. The compositions are mixtures of a polyarylate, a polyamide and a specified graft copolymer or modified polyolefin.
摘要:
A process for preparing a polyglycidyl compound in which an aromatic hydroxycarboxylic acid having phenolic hydroxyl group is reacted with an epihalohydrin in the presence of a phase transfer catalyst and the dehydrohalogenation is then conducted by acting an aqueous alkali solution on the reaction mixture obtained in the first step.