摘要:
The present invention provides an acrylic polymer emulsion containing a polymer formed by polymerizing 100% by weight in total of a monodic mixture comprising 50 to 90% by weight of an alkyl acrylate or an alkyl methacrylate, 9 to 49% by weight of a vinyl monomer of which homopolymer having a glass transition temperature Tg is not lower than 80° C., 0.2 to 10% by weight of a vinyl monomer having a carboxyl group and 0.1 to 5% by weight of a crosslinkable monomer having a molecular weight of not less than 280. The acrylic polymer emulasion of present invention provides gloves for home uses, works, examination operations, medical uses and the like which are superior in practical performances such as tensile strength, elongation, alcohol resistance, detergent resistance, oil resistance, recovering property after a stretch and wearing touch.
摘要:
The present invention provides an acrylic polymer emulsion containing a polymer formed by polymerizing 100% by weight in total of a monodic mixture comprising 50 to 90% by weight of an alkyl acerbate or an alkyl methacrylate, 9 to 49% by weight of a vinyl monomer of which homopolymer having a glass transition temperature Tg is not lower than 80° C., 0.2 to 10% by weight of a vinyl monomer having a carboxyl group and 0.1 to 5% by weight of a crosslinkable monomer having a molecular weight of not less than 280. The acrylic polymer emulasion of present invention provides gloves for home uses, works, examination operations, medical uses and the like which are superior in practical performances such as tensile strength, elongation, alcohol resistance, detergent resistance, oil resistance, recovering property after a stretch and wearing touch.
摘要:
An electro-optical device includes an X address decoder that selects one of plural X selection lines, a Y address decoder that selects one of plural Y selection lines, and plural pixel blocks. Each pixel block is provided with respect to an intersection of a corresponding X selection line and a corresponding Y selection lines. Each pixel block includes a pixel circuit and the pixel circuits corresponding to a column share a bit line and a complementary bit line. Each pixel circuit includes a memory circuit, a selection circuit, and a pixel electrode. The memory circuit includes plural transistors that become conductive between the bit line, the complementary bit line, and terminals of the memory circuit at the time of concurrent selection of an X selection line and a Y selection line corresponding to the pixel block to which the plural transistors belong.
摘要:
A method and apparatus for resolving a “continuity” problem that occurs when modes are switched in the head positioning control process, and a contradiction exists between a short seek and a long seek.
摘要:
A disk drive has a data recording medium such as a disk, a spindle motor for rotating the disk, disk rotation speed controlling logics for supplying a spindle current to the above described spindle motor to rotate the disk at a constant speed, a head unit for accessing the disk, an actuator for moving the head unit, and head position controlling logics for driving the actuator and controlling the position of the head unit. The head position controlling logic obtains the value of the spindle current and controls the position of the head unit on the basis of the above described spindle current value by using the fact that the spindle current varies according to variations in the position of the head unit.
摘要:
A dip-formed rubber article is produced by dip-forming a vulcanizable rubber latex composition comprising an unsaturated nitrile-conjugated diene copolymer rubber latex, a sulfur-containing vulcanizer, and at least one vulcanization accelerator selected from (i) dithiocarbamic acid compounds of the formula (1): wherein R1 and R2 independently represent and hydrocarbon group having at least 6 carbon atoms, and (ii) zinc dithiocarbamate compounds of the formula (2): wherein R1 and R2 are as defined above.
摘要:
A vulcanizable dip-forming rubber latex composition comprising an unsaturated nitrile-conjugated diene copolymer rubber latex, a sulfur-containing vulcanizer, and a vulcanization accelerator comprising at least one compound selected from (i) dithiocarbamic acid compounds of the formula: and (ii) zinc dithiocarbamate compounds of the formula: wherein R1 and R2 are hydrocarbon groups having at least 6 carbon atoms which may be the same or different, and an optional thiazole compound. A rubber article dip-formed from the rubber latex composition has no crack occurrence, good surface luster and good vulcanization properties, and does not contain a nitrosamine, and therefore, is suitable for medical use.
摘要:
The invention reduces power consumption when, for example, a mobile personal computer is in a power-saving mode or when a cellular phone is in a wait mode, in an electro-optical apparatus, such as a liquid crystal display of the subfield drive type used as a display apparatus for various apparatuses. Three different settings “64”, “16” and “2” are enabled as the number of gray scale levels in an electro-optical apparatus, the number of subfields becoming smaller as the number of gray scale levels is reduced. When a large number of gray scale levels is not required (when in the power-saving mode, the wait mode, etc.), a low number of gray scale levels is set, so that the own capacitance of a liquid crystal layer and storage capacitance are charged and discharged less often.
摘要:
Disclosed is a polishing system used for polishing a surface to be polished of an object to be polished by a polishing pad, which is capable of improving uniformity of the surface to be polished of the object to be polished by positively, accurately adjusting a polishing pressure, and a polishing method using the polishing system. Concretely, the surface to be polished of a wafer as the object to be polished is polished by relatively moving, along a plane, a polishing surface of the rotating polishing pad and the surface to be polished of the wafer in slide-contact with each other, and adjusting a pressing force applied from the polishing pad to the wafer in accordance with a polishing pressure previously set depending on a relative-positional relationship between the polishing surface of the polishing pad and the surface to be polished of the wafer.
摘要:
A disk drive and a disk drive control method is described which reduces the number of one track seeks a drive performs. The one track seeks can operate the actuator bearing in a non-linear mode or can increase in the friction of the actuator bearing which leads to servo positioning inaccuracies. In the disk drive the logical block address (LBA) assignments are made so that when sequential addresses are allocated to two different tracks, the tracks are physically non-adjacent. Thus, when a sequential LBAs are read across a track boundary, the actuator is moved farther than would be required if the LBAs were assigned the adjacent tracks.