342results about How to "Reduce outgassing" patented technology

A method of passivating the surface of a substrate to protect the surface against corrosion, the surface effects on a vacuum environment, or both. The substrate surface is placed in a treatment environment and is first dehydrated and then the environment is evacuated. A silicon hydride gas is introduced into the treatment environment, which may be heated prior to the introduction of the gas. The substrate and silicon hydride gas contained therein are heated, if the treatment environment was not already heated prior to the introduction of the gas and pressurized to decompose the gas. A layer of silicon is deposited on the substrate surface. The duration of the silicon depositing step is controlled to prevent the formation of silicon dust in the treatment environment. The substrate is then cooled and held at a cooled temperature to optimize surface conditions for subsequent depositions, and the treatment environment is purged with an inert gas to remove the silicon hydride gas. The substrate is cycled through the silicon depositing step until the surface of the substrate is covered with a layer of silicon. The treatment environment is then evacuated and the substrate cooled to room temperature.

A metal sealed organic light emitting diode device comprising a lid, containing a recessed portion to accommodate large quantity of getter/dessicant, a band of metal stack at the perimeter over which is laid a band of low temperature melting solder alloy, pre-tinned subsequently, and a substrate. The substrate containing organic light emitting diode at the central area with a band of metal stack at the perimeter. The lid and the substrate are placed together in substantial alignment such that the pre-tinned low melting solder band of the lid contacts the metal stack of the substrate and thermally sealed in a controlled atmosphere. Multiples of substrates are sealed with a single lid containing multiplicity of recessed portions with multi-segmented metal stack and pre-tinned solder band to derive a large area device.

An inkjet ink is provided that has a greater organic content than prior art inks. However, it is not simply enough to increase the organic content; other factors must be considered as well. These include controlling viscosity and surface tension, as well as maintaining acceptable drytime. An inkjet ink composition that evidences reduced outgassing and reduces paper cockle and curl comprises about 25 to 50 wt % of one or more organic co-solvents, has a viscosity of 10 cp or less, and has a surface tension of 40 dyne/cm or less. Advantageously, using a higher solvent ink reduces cockle and curl. Cockle and curl are also reduced as the water content of the ink is reduced. The present invention uses the higher solvent inks in combination with underprinting. In underprinting, a fixer solution is first "printed" on the print medium, followed by printing the inkjet ink thereon. There is a synergism to this combination. Together, weaknesses of both approaches are addressed. The advantages are a longer life pen, due to the reduction of outgassing of the ink, and reduced cockle and curl.

Disclosed are photo or electron beam polymerizable compositions, and preparation thereof and devices containing them. The composition contains completely or substantially completely hydrogenated hydrocarbon-based material completely free or substantially free of carbon-carbon double and triple bonds containing photo or electron beam curable terminal or pendant groups, low-outgassing photoinitiators, an optional viscosity adjustment component and an optional filler. The composition is visible light, UV or electron beam curable. It cures into a low-modulus, low outgassing polymer material. The composition can be used as an adhesive, sealant or lens potting material. It is ideal for use in lithographic tools involving deep or vacuum ultraviolet radiations, in particular, as lens potting materials for 157 nm lithographic tools.

The invention relates to a flame retardant polyurethane composite material and a preparation method thereof. The traditional flame retardant polyurethane foamed material has a poor use effect. The flame retardant polyurethane composite material provided by the invention is a mixed system comprising 70-99wt% of flame retardant polyurethane and 1-30% of blending type fire retardant, wherein the blending type fire retardant is one or more than one of ammonium polyphosphate, melamine, melamine cyanurate acid, polysiloxane, graphine, a carbon nano tube and kaolin, the fire retardant polyurethane is a random copolymer consisting of a polycarbonate unit, a polyether and an isocyanate unit. The preparation method of the flame retardant polyurethane composite material comprises the following steps of: firstly, preparing fire retardant polyalcohol; then, mixing the fire retardant polyalcohol and the blending type fire retardant into a mixed system; and then adding polyisocyanates into the mixed system and reacting to finally obtain the flame retardant polyurethane composite material. The flame retardant polyurethane composite material prepared by using the preparation method disclosed by the invention has the advantages of excellent fire retardance, low-fogging performance and low-gas-releasing performance.

The invention discloses a sectional type constant voltage and constant current charging method. The method comprises the following steps: determining an initial phase charging current I0 according to an optimal charging curve of a battery to obtain delta I; collecting an actual charging current Id and an actual charging voltage Ud of a storage battery in real time; judging the range of Id according to the detected actual charging current Id; outputting an charging current It of the current sectional constant current charging stage; judging the intensities of the current charging voltage Ud and the current charging current Id; and ending a charging process when the current charging voltage Ud is equal to a charge upper limit voltage U and the current charging current Id is equal to a minimum charging current Imin. The method forces the charging current to reduce exponentially in a sectional type mainly according to the optimal charging curve, thus achieving the purposes of shortening the charging time, reducing the water loss and gas evolution amounts of the storage battery, and prolonging the service life of the storage battery.

The invention provides a heavy oil reservoir artificial bubble oil throughput exploiting method. The method comprises the following steps of step 1, injecting solvent type foam liquid into an oil well; step 2, after the well is covered for proper time, opening the well to produce oil; step 3, when the daily oil yield is 1m<3>/d to 2 m<3>/d, stopping throughput production of the period, and repeating the step 1 to step 3, and when the gas yield is gradually reduced and the cycle produced gas-oil ratio is smaller than 5, performing step 4; step 4, injecting an oil-soluble viscosity reducer into the oil well; step 5, injecting a solvent type foaming agent into the oil well; step 6, after the well is covered for proper time, opening the well to produce oil; step 7, when the daily oil yield is 1m<3>/d to 2 m<3>/d, stopping throughput production of the period, and repeating the step 4 to step 6; step 8, when the cycle oil yield is smaller than 100 to 200m<3>, stopping production. By the exploiting method provided by the invention, the viscosity of crude oil can be greatly reduced, and the aim of greatly improving the primary gas-containing heavy oil reservoir recovery ratio is fulfilled due to the fact that bubble oil flow is artificially produced.

A device for selectively regenerating and performing tank leakage diagnosis of a tank ventilation system has a sorption filter and a pump. The sorption filter is configured to temporarily store fuel evaporating from a fuel tank. The pump is arranged at a fresh-air side of the sorption filter and is connected in fluid-conducting fashion to the sorption filter. The pump is configured to generate a fluid flow to regenerate the sorption filter.

Transformer oil comprises paraffin base oil fraction, naphthenic base oil, alkyl high boiling substances, antioxidant and photosensitivity resistant agents. In the transformer oil, the weight percentage of the paraffin base oil fraction ranges from 60% to 75%, the weight percentage of the naphthenic base oil ranges from 19.4% to 28.5%, the weight percentage of the alkyl high boiling substances ranges from 5% to 10%, the weight percentage of the antioxidant ranges from 0.5% to 1.0%, and the weight percentage of the photosensitivity resistant agents ranges from 0.1% to 0.5%. The invention further provides a preparation method for the transformer oil, and the preparation method includes adding the paraffin base oil fraction, the naphthenic base oil and the alkyl high boiling substances in a reaction kettle; adding clay in the mixture to refine; performing stirring, refining and adsorbing at high temperature; adding antioxygen additives and photosensitivity agents in the mixture after themixture is filtered; and performing vacuum treatment once to three times in a vacuum pump under negative pressure of 0.8KPa. The kinematic viscosity of the transformer oil is 6.5mm<2>/s-9.5mm<2>/s, and the breakdown voltage reaches 55-80KV/2.5mm.

This invention provides an interlayer insulating film for a semiconductor device, which has low permittivity, is free from the evolution of gas such as CFx and SiF₄ and is stable, and a wiring structure comprising the same. In an interlayer insulating film comprising an insulating film provided on a substrate layer, the interlayer insulating film has an effective permittivity of not more than 3. The wiring structure comprises an interlayer insulating film, a contact hole provided in the interlayer insulating film, and a metal filled into the contact hole. The insulating film comprises a first fluorocarbon film provided on the substrate layer and a second fluorocarbon film provided on the first fluorocarbon film.

The object of the present invention is to provide a polyarylene sulfide composition having excellent thermal conductivity, dimensional stability, heat resistance and low gas property, which is particularly useful to applications of electric parts such as electric and/or electronic parts or automobile electric parts. The present invention relates to a polyarylene sulfide composition comprising a polyarylene sulfide (a), a metal silicon powder (b), a fibrous filler (c), and preferably a release agent (d) and at least one thermally conductive filler (e) selected from the group consisting of a scale-like boron nitride powder (e1) having a hexagonal structure, a coated magnesium oxide powder (e2) coated with a complex oxide of silicon and magnesium and/or a complex oxide of aluminum and magnesium, a high purity magnesite powder (e3) which is a magnesite comprising magnesium carbonate as a main component and has a magnesium carbonate content of from 98 to 99.999% by weight, and graphite (e4).

The invention relates to a grading constant current charging method with voltage-controlled pulse. A section of a pulse charging and discharging process with the depolarization function is attached when storage battery voltage rises to a gassing point at each grade of constant current charging stage. Charging current amplitude of the pulse charging and discharging process is equal to constant current amplitude at the same grade, and discharging current amplitude value is 0.5-1% of first constant current amplitude. A pulsating voltage average value of a storage battery in the pulse charging and discharging process is fixed and controlled to be a litter lower than the gassing point. Compared with a traditional grading constant current charging method used by a high-capacity lead-acid storage battery at present, the grading constant current charging method has the advantages of being short in charging time, high in charging efficiency, small in battery gassing amount, small in battery damage and the like.

We provide an x-ray detector having a housing with one or more internal surfaces defining an internal volume. The housing is adapted in use to contain a vacuum within the internal volume. An x-ray sensor is located within the internal volume of the housing. A window, located within the housing, is adapted to permit the passage through the window of x-rays to be detected from the external environment to the sensor. A getter material is applied as a coating to the one or more internal surfaces, for absorbing gaseous species present within the vacuum and for substantially preventing outgassing from the parts of the walls coated by the getter material.

The invention relates to a pulse charging method used for prolonging VRLA battery service life. The invention aims at provides a pulse charging method used for prolonging VRLA battery service life, such that the service life of a valve-regulated lead acid battery is prolonged. The invention adopts a technical scheme that, a VRLA battery has an output voltage of U and a capacity of C. The method is characterized in that the method is preceded in three sections which are a section A, a section B, and a section C. In the section A, constant-current charging is carried out with a charging limited current I. In the section B, periodic-change charging is carried out with constant current of the limited current I and constant-voltage of a second charging voltage U2. In the section C, periodic-change charging is carried out with constant-voltage of a first charging voltage U1 and constant-voltage of the charging voltage U2. In the section A, when a voltage is increased to U1, the process turns to the section B. In the section B, when the battery is charged to almost full, the process turns to the section C. The invention is suitable to be used in a field of storage battery charger.

The invention relates to a device for measuring volume change of a bellows of a varactor chamber of a constant voltage type gas flow indicator, belonging to the technical field of vacuum measurement. The measuring device comprises an air supply system, a varactor chamber, a partition valve, a reference room pipeline, an absolute type pressure gauge, a differential pressure type pressure gauge, a translational mechanism, a standard container, vacuum valves and an air-bleed system. The air supply system is connected with the reference room pipeline by one vacuum valve, the air-bleed system is connected with the reference room pipeline by one vacuum valve, the absolute type pressure gauge is connected with the reference room pipeline, on end of the differentiated pressure type pressure gauge is connected with the reference room pipeline and the other end thereof is connected with a varactor chamber pipeline, one end of the bellows is connected with the translational mechanism and the other end thereof is connected with the varactor chamber pipeline by one vacuum valve, the standard container is connected with the varactor chamber pipeline by one vacuum valve, the varactor chamber pipeline and the reference room pipeline are connected by the partition valve. The device of the invention can carry out in situ measurement and carry out repeated measurement under operational condition.

The present invention comprises an electroosmotic flow pump with both anion and cation exchange beads packed in separate channels that pump towards an intersection. Combining the two flow streams results in higher flowrates for the pump and allows operation of the pump over a wide pH range. The pump can be used to deliver solutions ranging from a pH of about 2 to about 12. In a preferred embodiment, the electroosmotic pump of the present invention is fabricated on a microfluidic device capable of Edman degradation. In a preferred embodiment of the present invention, the beads are immobilized in the channels using weirs and membranes, eliminating the need for frits. The pump may be comprised of capillaries. Additionally, the electroosmotic flow pump of the present invention may be integrated into an Integrated Microfluidic Proteome Analysis System.

The invention discloses an alloy material for a positive slab lattice of a lead acid storage battery and a preparation method thereof. The alloy material is composed of 0.07 percent to 0.12 percent of calcium, 0.10 percent to 0.12 percent of tin, 0.04 percent to 0.05 percent of aluminum, 0.16 percent to 0.2 percent of cerium or lanthanum and the balance of lead. The preparation method comprises the following steps: a. the lead is melted to form a lead solution; b. the temperature of the lead solution is controlled between 600 DEG C and 650 DEG C and the cerium or the lanthanum is added into the solution; and c. the temperature of the lead solution is lowered to 550 DEG C to 580 DEG C and the calcium and the aluminum are added into the solution; and d. the temperature of the lead solution is lowered to 450 DEG C to 500 DEG C, the tin is added into the solution, and the lead solution is taken out from the pot and molded into the alloy material. The alloy material prepared by the method has good corrosion resistant performance and can ensure that the lead acid storage battery produced has good corrosion resistant performance, low water loss, low gassing rate and long service life.

The invention discloses a large blast furnace body gas leakage prevention method. According to the method, the blast furnace gas leakage is processed; the lower furnace body gas is processed according to the following case: the furnace foundation cooling-free zone and first to third cooling surface zones are respectively provided with holes, a plastic sealed grouting material with a retarding agent is pressed into the holes of the furnace foundation cooling-free zone, and a plastic sealing material is pressed into the holes of the first to third cooling surface zones, wherein the pressing pressure is gradually reduced to 2MPa from 12-16MPa. By comprehensively applying the method of the invention, the furnace foundation gas leakage is effectively controlled, so the blast furnace life is greatly prolonged, and the blast furnace can continuously and normally smelt.

The invention discloses transformer oil base oil with a low freezing point and high naphthenic carbon content and a preparation method of the transformer oil base oil. The preparation method comprises steps as follows: 1), Qinhuangdao 32-6 furfural refinement extract oil with the distilling range of 290-340 DEG C is taken as a raw material, a denitrification agent and an adsorbing agent are added for refining, and denitrified refined oil is obtained; 2), the denitrified refined oil obtained in the step 1) is sequentially subjected to hydroprocessing and hydrorefining, and the transformer oil base oil is obtained through distillation. The production difficulty of the transformer oil base oil with the low freezing point and the high naphthenic carbon content in the prior art is solved, the preparation method of the transformer oil base oil with the low freezing point and the high naphthenic carbon content is provided, a product prepared with the method has the characteristics of high naphthenic carbon content, low pour point, good oxidation stability and lower degreasing property, and the production difficulty of the transformer oil base oil with the low freezing point and the high naphthenic carbon content in the prior art is solved.