摘要:
The present invention discloses an oxidized mixed cyclic phenol sulfide which is a mixture of the oxidized cyclic phenol sulfide wherein in is 8 and the oxidized cyclic phenol sulfide wherein m is an integer other than 8, the oxidized cyclic phenol sulfide being represented by the following formula (1): wherein R is a straight or branched alkyl group having 1 to 6 carbon atoms, m is an integer from 4 to 9, and n is 1 or 2; or an oxidized cyclic phenol sulfide of formula (1) wherein m is 8. The present invention also discloses a charge control agent which comprises the above sulfide(s) as the active ingredient; and a toner which comprises the charge control agent, a coloring agent and a binder resin. This charge control agent is particularly useful for color toners, and it speeds up charging risetime, and has a high charge amount and charging characteristics excellent in environmental stability. Further, the charge control agent is safe since it does not have any problem with the waste regulations.
摘要:
To provide an energy ray-curable resin composition which exhibits equally high adhesive strength to various objects to be bonded, such as glasses, metals and plastics and which has good heat resistance and moisture resistance and is excellent also in rigidity, particularly an energy ray-curable resin composition having a low cure shrinkage and little adhesion strain.An energy ray-curable resin composition comprising (A) a (meth)acrylate having a molecular weight of from 500 to 5,000, of which the main chain backbone is at least one member selected from the group consisting of a polybutadiene, a polyisoprene and hydrogenated products thereof and which has at least one (meth)acryloyl group at an end of the main chain backbone or in a side chain, (B) a monofunctional (meth)acrylate having a C2-8 unsaturated hydrocarbon group via an ester bond, (C) a hydroxyl group-containing (meth)acrylate, (D) a polyfunctional (meth)acrylate, (E) a photopolymerization initiator, and (F) an antioxidant.
摘要:
A circular polishing pad has grooves formed on the surface in a spiral pattern with its center point offset from the center of the pad. The spiral pattern is an Archimedean spiral pattern or a parabolic spiral pattern. A target object is polished by using such a polishing pad without oscillating the platen to which the polishing pad is pasted or the polishing head that holds the target object.
摘要:
[Problem] A dust cover for a steering prevents offensive sounds from emitting during an operation of a steering wheel.[Means for Solving] A dust cover for a steering shaft according to the present invention includes: a bush 2 of low-frictional material, through which a steering shaft 20 penetrates; a plurality of bellows 3 made of rubber, provided in an axial direction of the steering shaft 20, and arranged between the bush 2 and a panel 19, for sealing the clearance; and an annular seal lip 4 in contact with the outer periphery of the steering shaft 20.
摘要:
A novel optical compensatory sheet comprising an optically anisotropic layer comprising at least one liquid crystal compound, at least one cellulose ester, and at least one polymer A comprising at least one repeating unit derived from a monomer having a fluoro-aliphatic group, and at least one repeating unit having a group selected from the group consisting of carboxyl group (—COOH) or a salt thereof, a sulfo group (—SO3H) or a salt thereof and a phosphonoxy group {—OP(═O) (OH)2} or a salt thereof, is disclosed. A novel optical compensatory sheet comprising an optically anisotropic layer comprising at lest one liquid crystal compound at least one polymer C, having a weight average molecular weight of not less than 5000 and less than 20000, represented by a formula (1b), and at least one polymer D, having a weight average molecular weight of not less than 20000, represented by a formula (1b), is also disclosed. In the formula, “A” represents a repeating unit having a group capable of hydrogen bonding, “B” represents a repeating unit having a polymerizable group, and “C” represents a repeating unit derived from an ethylene-type unsaturated monomer. -(A)ai-(B)bj-(C)ck- Formula (1b)
摘要翻译:一种新型光学补偿片,其包括光学各向异性层,其包含至少一种液晶化合物,至少一种纤维素酯和至少一种包含至少一种衍生自具有氟 - 脂族基团的单体的重复单元的聚合物A,并且至少 一个具有选自羧基(-COOH)或其盐,磺基(-SO 3 H 3))或其盐和膦氧基(-OP)的基团的重复单元 (-O)(OH)2 N 2)或其盐。 一种新型光学补偿片,其包含光学各向异性层,其至少包含一种液晶化合物,至少一种聚合物C,其重均分子量不小于5000且小于20000,由式(1b)表示,并且至少 还公开了由式(1b)表示的重均分子量不小于20000的一种聚合物D。 式中,“A”表示具有氢键的基团的重复单元,“B”表示具有聚合性基团的重复单元,“C”表示来自乙烯系不饱和单体的重复单元。 - (A)ai-(B)bj-(C)ck-公式(1b)<?in-line-formula description =“内联公式”end =“tail”?>
摘要:
A plurality of electrodes are adapted to be attached on a living body. An electric pulse is output through the electrodes as an electric stimulation to the living body. An analyzer is operable to detect a waveform of the electric pulse and to analyze a parameter of the waveform. A display displays the parameter together with one of the waveform and a model waveform which is an invariable waveform representative of the electric pulse.
摘要:
A method of molding an object with a mold having a transfer face includes the steps of filling, separating, re-melting, re-contacting, cooling, and removing. The filling step fills a thermoplastic material, having a temperature greater than a softening temperature of the thermoplastic material, into a cavity space in the mold having a temperature smaller than the softening temperature of the thermoplastic material. The thermoplastic material comes in contact with the transfer face and is cooled. The separating step separates the transfer face from the thermoplastic material to form a heat-insulating layer between the thermoplastic material and transfer face. The re-melting step re-melts the thermoplastic material with heat energy retained inside the thermoplastic material. The re-contacting step re-contacts the re-melted thermoplastic material to the transfer face. The cooling step cools the thermoplastic material to a temperature smaller than the softening temperature of the thermoplastic material. The removing step removes the cooled thermoplastic material from the mold.
摘要:
A head slider to which little amount of contaminants is adhered, that can form a uniform and flat head lubricant layer surface and that has excellent ultra-low floating properties, as well as a magnetic recording device equipped with the head slider are provided. The head slider is equipped with a head slider lubricant layer having an average film thickness of not more than 2.5 nm, and composed of a water-repellent resin, the lubricant layer being formed on the head slider surface and head slider protection layer surface facing the magnetic recording medium, and the surface tension of the head slider lubricant layer determined by the Fowkes equation is not more than those of the head slider surface and head slider protection layer surface.
摘要:
An objective is to provide an acceleration sensor element that has a high detection sensitivity and that realizes an accurate measurement of acceleration; and an acceleration sensor including this acceleration sensor element to realize a smaller size and a thinner thickness. An acceleration sensor element 10 comprises a quartz, has a thickness in a Z axis direction, and is formed in a quartz substrate 20 developed in an orthogonal XY plane. A thin-walled section of a bottom section of a concave section 28 of the quartz substrate 20 has a double-ended vibrating reed 30 in which a pair of vibration arms 31 and 35 extend in a Y axis direction. When acceleration in a Z axis direction is applied while this double-ended vibrating reed 30 having bending vibration, the acceleration is detected based on a change in a resonance frequency caused when the double-ended vibrating reed 30 deflects in the Z direction.
摘要:
To provide a block copolymer composition having a good balance in transparency and impact resistance, and particularly having an excellent impact resistance, by making a molded product of injection molding under high sear condition in such a manner as to hardly generate anisotropy. A block copolymer composed of a hard segment block comprising a block made mainly of a vinyl aromatic hydrocarbon and a soft segment block comprising a block made mainly of a conjugated diene, characterized by having a remarkably improved impact resistance without degrading transparency in respect of not only an extrusion-molded product and a blow-molded product but also an injection-molded product, by blending two kinds of block copolymers having a hard segment block of a specific structure.