摘要:
An addition curing silicone rubber composition and a cured product thereof are provided. In this composition, amount of the low molecular weight siloxane component volatilizing from the cured product has been reduced, and as a consequence, this composition is free from the problems such as clouding or haze, contact fault, adhesion failure, and hydrophobicization of the surface caused by the deposition of the volatilized low-molecular weight siloxane component on the surrounding surfaces. More specifically, the addition curing silicone rubber composition comprises; (A) 100 parts by weight of a polyorganosiloxane containing, on average, at least two alkenyl groups which are bonded to silicon atom; (B) 0.3 to 20 parts by weight of an organohydrogenpolysiloxane containing at least two hydrogen atoms which are bonded to silicon atom (SiH functional groups) per molecule; and (C) a catalytic amount of a addition reaction catalyst, and content of the polyorganosiloxane having a degree of polymerization of up to 10 and containing at least one SiH functional group per molecule is up to 0.5% by weight in relation to the entire composition.
摘要:
The present invention provides methods for labeling One or two oxygen atom(s) in a carboxyl group of a carboxyl-containing compound with an oxygen isotope selected from oxygen-17 (17O) or oxygen-18 (18O). The methods of the present invention are characterized in that an activated ester of the carboxyl-containing compound (carboxylic acid) is reacted with H217O or H218O in the presence of an activator. In the methods of the present invention, the reaction between the activated ester of a carboxylic acid and H217O or H218O can be allowed to proceed without including drastic conditions such as strongly acidic conditions or alkaline hydrolysis because an activator is used.
摘要翻译:本发明提供了将含羧基化合物的羧基中的一个或两个氧原子与选自氧-17(0-4O)或氧-18( <00> O)。 本发明的方法的特征在于,含羧基化合物(羧酸)的活化酯与H 2 O 2 O或H 2 在活化剂存在下进行反应。 在本发明的方法中,羧酸的活化酯与H 2 O 3或H 2 O 2的反应, 由于使用活化剂,可以不包括强酸性条件或碱性水解等剧烈条件进行18 O。
摘要:
A silicone ink composition for inkjet printing which is composed of an organopolysiloxane having two or more alkenyl groups on the molecule, an organohydrogenpolysiloxane having two or more hydrosilyl groups on the molecule, a platinum catalyst, a reaction regulator, a pigment, a dispersant and a solvent lends itself well to use in printing and coating with an inkjet printer. An image can be formed by using an inkjet printer to print or coat the composition onto a recording medium, then crosslinking and/or bonding the composition.
摘要:
An angular velocity of the present invention includes a resonator formed of a resonating member and a connecting member, a first base connected to the connecting member, a holding plate to hold the first base, a circuit board fixed onto the holding plate, an elastic body disposed on an end part of at least one selected from the holding plate and circuit board, a case housing the resonator, first base, holding plate, circuit board and elastic body and provided with an opening, and a second base put in place so as to close the opening of the case. The resonator has a short side and a long side. The resonator is located with the direction of the long side thereof arranged perpendicular to the second base, the elastic body is located between an end part of at least one selected from the holding plate and circuit board and the walls of the case, and at least one selected from the holding plate and circuit board is held by the case with an elastic pressure of the elastic body, thereby allowing the compression rate of the elastic body to be prevented from varying. As a result, an angular velocity sensor having stable output characteristics is realized.
摘要:
A process for preparing an urethane compound for medical instruments, characterized by reacting a hydroxyl compound (A) with an isocyanate compound (B) in the absence of a catalyst or in the presence of a reaction catalyst other than an organic tin compound to give an urethane compound (I). According to the process, the urethane compound showing high safety can be easily prepared, in particular, while molecular weight of the compound is controlled.
摘要:
A personal cleansing sheet with which the skin and hair can be easily cleansed of oily soils such as sebum and aqueous soils such as sweat or salts, has a structure in which an oily substance absorption layer that serves as a region that absorbs oil substances is laminated with an aqueous cleansing liquid retention layer that serves as a region that retains an aqueous cleansing liquid.
摘要:
A coating composition comprising (A) a urethane polymer having at least one aliphatic unsaturated hydrocarbon group on a side chain in a molecule, (B) an organohydrogenpolysiloxane having at least two hydrosilyl groups in a molecule, and (C) a hydrosilylation catalyst firmly bonds to surfaces of various substrates, especially silicone rubber substrates, without a need for pre-treatment and readily forms thereon a surface protective layer having wear resistance. A silicone rubber member in which a silicone rubber substrate is coated on its surface with the inventive coating composition is endowed on the surface with wear resistance and is useful as silicone rubber key pads and silicone rubber rolls.
摘要:
A semiconductor packaging chip-supporting substrate of the present invention comprises an insulating supporting substrate, wiring provided on the substrate, and an insulating film provided on the wiring. The wiring each have i) an inner connection that connects to a semiconductor chip electrode and ii) a semiconductor chip-mounting region. An opening is also provided in the insulating supporting substrate at its part where each of the wiring is formed on the insulating supporting substrate, which is the part where an outer connection conducting to the inner connection is provided. The insulating film is formed at the part on which the semiconductor chip is mounted, covering the semiconductor chip-mounting region of the wiring.
摘要:
A color image forming device produces a good image form, superior in color and gradation reproduction, and little over-enhancement in sharpness during generation duplicating. The device has an image processing parameter storage unit that stores parameters for processing which correspond to original document modes in respective processing blocks. An image processing parameter detector detects the original document mode, and provides the mode to the respective components as an original document mode directive TAG. When generation duplicating is designated, the generation duplicating mode corresponding to the set original document mode is set, and various parameter settings are indicated corresponding to the set generation duplicating mode in the image processing parameter storage unit. By such, the operation in each image processing module is converted to the set generation duplicating mode.
摘要:
A magnetic recording medium comprises a nonmagnetic support having provided thereon a plurality of magnetic layers containing a first magnetic layer as a top layer and a second magnetic layer adjacent to the first magnetic layer. The first magnetic layer contains acicular magnetic powder and has a thickness of not more than 1.0 .mu.m; and the second magnetic layer contains sexangular plate-like magnetic powder.