摘要:
A solvent-free, cold-setting ternary organosiloxane composition is disclosed, which contains (A) liquid organopolysiloxane, (B) a cross-linking agent, and (C) a curing catalyst, said organopolysiloxane (A) being constituted by organosilicon group of X--Si (wherein X represents a hydrogen atom or a monovalent hydrocarbyl group) and functional side chain of OR (wherein R represents a hydrogen atom, a C.sub.1 -C.sub.5 alkyl group or an acyl group), said cross-linking agent (B) being one or more organometallic compounds selected from the group consisting of an organoaluminum compound, an organoboron compound, an organosilicon compound, an organotitanium compound and an organozirconium compound having at least one functional group selected from among an alkoxy group, an acyloxy group and an oxime group, and said curing catalyst (C) being a metal-containing organic compound, with the total contents of the metal elements of the ternary composition being 40% by weight or more in terms of MO.sub.y/2 (wherein M represents aluminum, boron, silicon, titanium or zirconium, and y represents a valency of the metal element). A transparent film, a coating material, a binder and a structure formed by using same are also disclosed.
摘要:
Provided is a solvent-free two-liquid type normal temperature curable liquid polymeric composition which comprises (I) as a first liquid, a liquid composition comprising (A) an organosiloxane component comprised of (a) one or more liquid organopolysiloxanes of the general formula: ##STR1## wherein R.sup.1 stands for a hydrogen atom, an alkyl group with 1-5 carbon atoms or an acyl group; R.sup.2 to R.sup.6 are the same or different and each stands for a hydrogen atom, --OR.sup.1 or a univalent hydrocarbon group; and n for an integer of 1-15, (b) a crosslinking agent comprising one or more organometallic compounds of the general formula:R.sup.7.sub.p M.(OR.sup.1).sub.3-porR.sup.7.sub.m Q.(OR.sup.1).sub.4-mwherein M stands for aluminum or boron element; Q for silicon, titanium or zirconium element; R.sup.1 for a hydrogen atom, an alkyl group with 1-5 carbon atoms, an acyl group or an oxime group; R.sup.7 for a hydrogen atom, --OR.sup.1 or a univalent hydrocarbon group; p for an integer of 1 or 2; and m for an integer of 1-3, and (c) a curing catalyst which is one or more organometallic compounds of zinc, cobalt, aluminum or tin element and has been incorporated with a catalytic reaction blocking agent, and (B) an organosiloxane carrying a glycidyl group, and (II) as a second liquid, (C) a solvent-free acrylic copolymer carrying a tertiary amino group which has been adjusted in viscosity with a silicone. This composition is excellent in various physicochemical characteristics and is very suitable for use in paints and binders.
摘要:
The present invention relates to a nozzle suitable for jetting high pressure and high temperature steam, and a method and an apparatus for producing an entangled nonwoven fabric using the nozzle. According to the apparatus, a steam inlet side main conduit (c1) and a steam outlet side conduit (c3) are connected with both end parts of a tubular nozzle holder (11) in a longitudinal direction provided integrally with nozzle members (15, 16, 23) having a plurality of nozzle holes (16a, 26). A steam outlet side conduit (c2) is provided with an opening/closing valve (55) and a trap conduit (57) is branched from a conduit at an upstream side from the opening/closing valve (55). By opening the opening/closing valve (55), a rapid temperature rise of the nozzle holder (11) can be enabled at a time of starting a production of a nonwoven fabric. Furthermore, even in the opening/closing valve (55) is closed in a regular operation, drainage generated inside the nozzle holder (11) can always be discharged to outside so that steam can be jetted stably and continuously, and thus a high quality entangled fiber nonwoven fabric can be produced continuously from the fiber web by the steam.
摘要:
An opening-closing door (20) for closing an equipment body (10) is provided at a front side of a car-mounted-type equipment, and an operating portion (21) for operating the equipment body (10) can be operated only when the opening-closing door (20) is in its open condition. A pivotal movement point, serving as an axis of pivotal movement of the opening-closing door (20), as well as a drive point to which a drive force for pivotally moving the opening-closing door (20) is applied, is provided on the opening-closing door (20). A first drive mechanism (race (35)) for driving the pivotal movement point in a direction perpendicular to the front side of the door (20), disposed in its closed condition, is provided at the opening-closing door (20). A second drive mechanism (lever (36)) for pivotally moving the opening-closing door (20) about the pivotal movement point is provided at the opening-closing door. When the opening-closing door (20) is to be opened, a slide pin (38), serving as the pivotal movement axis, is driven to a predetermined position in the perpendicular direction by the rack (35) prior to of the pivotal movement of the opening-closing door (20), and thereafter the lever (36) presses the drive point, thereby pivotally moving the opening-closing door (20) about the pivotal movement point.
摘要:
A method of detecting an overcoating rubber flowed in a space between a core member and a securing metal fitting of a polymer insulator having the core member, the overcoating arranged around the core member and the securing metal fitting fixed to at least one end of the core member, is disclosed. The method includes the steps of: applying a torque in a circumferential direction to the securing metal fitting, after forming the overcoating rubber but before fixing the securing metal fitting to the core member; deforming an index provided on a surface of the overcoating; and detecting whether the overcoating rubber is existent or not in the space between the securing metal member and the core member in response to a deforming extent indicated by the index.
摘要:
A magnetic disc substrate is provided, which includes a magnetic disc substrate body made of glass and is characterized in that a metal element capable of absorbing light in at least a surface portion of the magnetic disc substrate body, and a texture is formed on a surface of the magnetic disc substrate body. Ions of the metal element are dispersed in the surface portion of the magnetic disc substrate, or the metal element is contained in a composition of the glass constituting the magnetic disc substrate in the form of an oxide. The glass is preferably a crystallized glass a Li.sub.2 O--Al.sub.2 O.sub.3 --SiO.sub.2 based crystallized glass, which particularly preferably contains 65 to 85 wt % of SiO.sub.2, 8 to 15 wt % of Li.sub.2 O, 2 to 8 wt % of Al.sub.2 O.sub.3, 1 to 5 wt % of P.sub.2 O.sub.5 and 1 to 10 wt % of ZrO.sub.2 and has lithium disilicate (Li.sub.2 O.2SiO.sub.2) as a main crystalline phase.
摘要翻译:提供一种磁盘基板,其包括由玻璃制成的磁盘基板主体,其特征在于,在表面上形成能够吸收磁盘基板主体的至少表面部分中的光的金属元件和纹理 的磁盘基板主体。 金属元素的离子分散在磁盘基板的表面部分中,或者金属元素以氧化物的形式包含在构成磁盘基板的玻璃的组成中。 玻璃优选为Li2O-Al2O3-SiO2系微晶玻璃的结晶化玻璃,特别优选含有65〜85重量%的SiO 2,8〜15重量%的Li 2 O,2〜8重量%的Al 2 O 3,1〜5重量% 的P 2 O 5和1〜10重量%的ZrO 2,并且具有二硅酸锂(Li 2 O 2·SiO 2)作为主要结晶相。
摘要:
A process for producing a crystallized glass substrate for magnetic disks, including the steps of: (a) holding an amorphous glass plate having a uniform thickness and two principal flat surfaces thereof between a pair of pressing setters in a sandwiched fashion, which pressing setters are non-reactive with the amorphous glass and undeformable during heating for crystallization of the amorphous glass; (b) softening the amorphous glass plate in a sandwiched stack form by heating at a temperature above an annealing point of the amorphous glass, whereby the principal surfaces are fitted onto the flat surfaces of the pressing setters to rectify warping to flatten the amorphous glass plate; and (c) then, increasing the temperature to a crystal growth temperature to grow crystals within the amorphous glass, whereby the amorphous glass plate is crystallized as maintaining its warp-free state, followed by solidifying.
摘要:
A DRAM includes an output terminal, a memory cell array having a plurality of memory cells, a row decoder, a column decoder, an input/output circuit, a data extending circuit, an output buffer circuit, and a control circuit. The data extending circuit extends each data read out from the input/output circuit until a subsequent data is read out. The output buffer circuit responds to the extended data from the data extending circuit for providing output data sequentially to the output terminal. In response to an output control signal provided from the control circuit, the output terminal is set to a high impedance state before each output data is provided from the output buffer circuit.
摘要:
The flow of waste gas is directed downwardly by means of a refractory guide chute so as to follow the down flow of molten slag at the downstream end of a slag outlet. Thus the sensible heat of the high-temperature waste gas forcedly heats the molten slag and the downstream end portion of the slag outlet. Consequently, it becomes less possible for the slag outlet to be choked up. When there are signs that the slag outlet is being choked up, the plasma torch is slightly tilted to the upstream end of the slag outlet so as to stabilize the discharge of the molten slag. A housing or jacket is disposed circumferentially around an incineration residue feed pipe, inserted through the incineration residue inlet, and adapted to allow an annular gas curtain to issue therefrom. Fuel injection against the waste gas in the furnace body is particularly suitable for decreasing the amount of NOx. Valuable matter is efficiently recovered from the waste gas without causing a waste gas channel in a waste gas purifying plant to be choked up with the particles of valuable matter. A device for detecting the leakage of cooling water caused by the deterioration of the plasma torch is also provided.
摘要:
Described herein is a process for melting iron material in the production of molten iron, in which cold iron material such as scraps, cold pig iron or reduced iron is charged into a melting furnace, the process comprising: feeding a carbon-containing solid material into a precombustion vessel for primary combustion therein with supply of an oxygen-containing gas with an oxygen content corresponding to 0.4 to 0.9 of theoretical air ratio; separating combustion residues of the carbon-containing solid material from the resulting hot reducing gas; and introducing the reducing gas into the melting furnace for secondary combustion therein with supply of an oxygen-containing gas holding an oxygen concentration corresponding to 0.7 to 1.3 of theoretical air ratio in total with the oxygen-containing gas supplied to the precombustion furnace.