42results about How to "Reduce sublimation" patented technology

There is provided a thermosensitive material allowing a thermal pellet incorporated thermal fuse's operating temperature, or heat distortion temperature, to be adjusted and preventing deformation, modification or similar deficiency if it is exposed to severe external environment, and there is provided an inexpensive thermal fuse that provides a wider range from which an operating temperature is selected, improved insulation resistance after operation, faster response speed in operation, and enhanced strength of the thermal pellet. To do so, the thermosensitive material is formed of thermoplastic resin corresponding to a high molecular substance, the thermal pellet's heat distortion temperature is adjusted by a temperature setting method, and an enclosure has a metal casing with a spring member's strong and weak compression springs and both accommodated therein and hermetically sealed.

The invention discloses a disperse dye thermosol dyeing method taking decamethylcyclopentasiloxane (D5) as a medium. The method comprises the following steps: (1) pretreating polyester fabric; (2) adding a certain amount of pure disperse dyes into a dyeing medium D5, controlling the amount of the dyeing medium D5, so that a ratio of the weight of a to-be-dyed fabric to the weight of the medium D5 is 1:10 to 1:30, dyeing in a dyeing machine, heating the system to 90-100 DEG C, preserving the temperature for 5-10 minutes, heating to the temperature of 180-200 DEG C, and performing thermosol fixation, wherein the fixation time is 10-30 minutes; and (3) performing reduction clearing on the dyed fabric according to a GB2394-80 method after dyeing. According to the method, non-aqueous medium dyeing is adopted, lots of water resources are saved, the thermosol temperature can be obtained under normal pressure, the conventional dyeing equipment can be adopted, the operation is simple, pure disperse dyes are adopted for dyeing, lots of dispersing aids are saved, the utilization rate of the dyes is improved, wastewater emission is reduced, and ecological environment protection is facilitated.

Provided is a method for manufacturing a magnetoresistive element, including a step of forming a tunnel barrier layer, wherein the step of forming the tunnel barrier layer includes a deposition step of depositing a metal film on top of a substrate, and an oxidation step of subjecting the metal film to an oxidation process. The oxidation step includes holding the substrate having Mg formed thereon, on a substrate holder in a processing container in which the oxidation process is performed, supplying an oxygen gas to the substrate by introducing the oxygen gas into the processing container, at a temperature at which Mg does not sublime, and heating the substrate after the introduction of the oxygen gas.

The invention discloses polyol ester and application of the same to processing of a halogenated vinyl polymer. The polyol ester is prepared by subjecting one of polyols and one selected from a group consisting of carboxylic acid and acid anhydrides to esterification or subjecting one of polyols and one of the esters of carboxylic acid to transesterification. The polyol ester provided by the invention has good compatibility with the halogenated vinyl polymer and can improve the hot-working performance of the halogenated vinyl polymer when cooperated with a heat stabilizer; in particular, the polyol ester can inhibit or alleviate the phenomenon of zinc burning of a zinc-containing heat stabilizer in the later phase of hot-working when cooperated with the zinc-containing heat stabilizer; so the whiteness of a halogenated vinyl polymer product is improved, later zinc burning is effectively inhibited, the thermostabilization time, particularly medium-and-long-term heat stability, of the halogenated vinyl polymer (especially PVC) is substantially prolonged, and the defect of poor stability in the later phase of the zinc-containing heat stabilizer is compensated for. The polyol ester has good application prospects in the field of processing of the halogenated vinyl polymer, especially PVC.

The invention discloses a one-step safety production method of guanidine nitrate. The guanidine nitrate product is prepared through the following steps: adding ammonium nitrate, urea and a catalyst which is silicon dioxide or inorganic silica gel or aluminum oxide into a reaction kettle, heating to ensure that urea and ammonium nitrate are molten; controlling the temperature of the reaction liquid in the reaction kettle to maintain a reaction at the temperature; and cooling after the reaction, adding process water, heating the solution, performing hot filtering, recycling the catalyst, cooling the filtrate, filtering out a wet product, and drying the wet product to obtain the finished guanidine nitrate product. Ammonium nitrate is excess, thus urea can be completely reacted, side reactions such as the polymerization or sublimation of urea and decomposition can be reduced, the product yield can be increased and simultaneously the product quality can be increased. The production method has safety; and in order to ensure that the reaction has higher safety, the reaction kettle is connected with a temperature-pressure integrated fire device. The content of the obtained guanidine nitrate can meet the standard of the high-class product. The method has the advantages of simple technology and cheap and common raw material, and is economical and efficient.

The invention relates to a high-efficiency method for preparing low-sulfur molybdenum trioxide from molybdenite by roasting, and belongs to the field of molybdenum metallurgy. According to the invention, molybdenite processed through crushing and ball milling is placed in a quartz tube; the quartz tube is placed in a microwave cavity; a protective gas, namely nitrogen gas, is introduced for emptying air in the quartz tube; microwave is turned on, and output power is adjusted; the molybdenite is subjected to microwave radiation pretreatment for 10-20min under nitrogen gas protection; the molybdenite obtained after the microwave pretreatment is placed in a resistance heating furnace; temperature is set to be 550-600 DEG C; compressed air is blown in; the temperature is maintained for 2h, such that molybdenum trioxide with sulfur content lower than 0.1% is obtained. According to the invention, advantages of microwave heating and electronic heating are combined, and the method has the advantages of low energy consumption, high efficiency, high product quality and the like.

The present invention relates to a bottom anti-reflection coating composition which comprises a molecule glass compound comprising two or more hydroxy structures, a vinyl ethers compound comprising two or more vinyl ether sealed ends and a random photoacid generator. The composition can be used for photoetching processes such as a G wire, 365nm, 248nm, 193nm and the like. The light reflection effect can be effectively reduced, so that the resolution ratio of a photoetched pattern is improved and roughness of the wire edge is reduced; and moreover, an additional etching process does not need to be added to remove the bottom anti-reflection coating composition. In addition, the present invention also relates to a method for forming an erect image by using the anti-reflection coating composition.

A resist underlayer film for use in lithography process which generates less sublimate, has excellent embeddability at the time of applying onto a substrate having a hole pattern, and has high dry etching resistance, wiggling resistance and heat resistance, etc. A resist underlayer film-forming composition including a resin and a crosslinkable compound of Formula (1) or Formula (2):

in which Q¹ is a single bond or an m1-valent organic group, R¹ and R⁴ are each a C_2-10 alkyl group or a C_2-10 alkyl group having a C_1-10 alkoxy group, R² and R⁵ are each a hydrogen atom or a methyl group, R³ and R⁶ are each a C_1-10 alkyl group or a C_6-40 aryl group.

The invention discloses a technology for printing and dyeing knitted polyester fabrics under the conditions of high color fastness and little water. The technology includes presetting knitted polyester textiles under high-temperature conditions; carrying out direct cooling without draining residual liquid; adding acidic reducing agents and carrying out reduction cleaning. The technology has the advantages that reduction cleaning is carried out by the dye residual liquid, accordingly, surface dyeing can be effectively removed, unattached dye can be removed by means of reduction cleaning, watercan be saved, technological processes can be simplified, and the cost can be saved; wet cloth is directly set at the low temperatures without being dried after cleaning is carried out, high-temperature treatment is omitted, accordingly, migration and sublimation of dye under the condition of high-temperature setting can be reduced, and the technology is favorable for improving the color fastness of polyester textiles.

A imprint material is provided, and a film that is prepared from the material and to which the pattern is transferred. An imprint material including: (A), (B), (C) and (D) components; a ratio of the amount of the (B) component to a total amount of the (A) component and the (B) component of 100% by mass is 5% by mass or more and 25% by mass or less: (A) a silsesquioxane compound having a repeating unit of Formula (1) and having two or more polymerizable groups of X⁰ in Formula (1); (B) a silicone compound having a repeating unit of Formula (2) and having two polymerizable groups at ends thereof; (C) a photopolymerization initiator; and (D) a solvent

wherein the formulae, R¹ and R² are each independently a C_1-3 alkyl group; R⁰ is a C_1-3 alkylene group; and k is an integer of 0 to 3.

The present invention relates to a selective method for carrying out the Buchwald-Hartwig coupling of biphenyl derivatives.

The device for rotary cutting of blocky dry ice comprises a container used for containing the dry ice. A pressing device is arranged on the first side of the container and pushes the dry ice to the second side. A rotary cutting plate is arranged on the second side face. Blades and a supporting block are fixed to the rotary cutting plate. The blades incline in the direction from the second side to the first side and exceed the supporting block. A clearance is reserved among the supporting block, the blades and the rotary cutting plate. An opening is formed in the corresponding position, below the clearance, of the bottom face of the container, and rotary-cut dry ice particles drop down from the opening. According to the device, a dry ice dispersion device is arranged in the container for completion, a transmission device is arranged outside the container, the dry ice is not contaminated, little dry ice sublimates in the dispersion process, and the device is more compact.

The instant invention is to a new fuel system, which will allow operation of large scale electrical power generating facilities at a fraction of the cost of coal or natural gas fueled facilities and will not produce significant heat, exhaust emission gases, or particulate pollution. Because of the nature of the chemical reaction exploited in the system, it is denominated an instant entropy system (“IES”). The fuel used by the inventive IES produces gas expansion, but not from an oxidation/combustion reaction, and it does not produce oxidative exothermic heat. The IES utilizes a material first developed in the early part of the twentieth century—triacetone triperoxide (TAP).

The invention discloses a circulating fluidized bed boiler and a flow state reconstruction method suitable for high-viscosity flue gas, and solves the problem that flow state reconstruction is neededwhen a circulating fluidized bed boiler uses coal ultra-high in alkali metal content as fuel. A superheated screen (8) is arranged in a hearth (6), a convection evaporation tube bundle (12) is arranged on the upper portion of a tail shaft flue (13), the convection evaporation tube bundle adopts a longitudinal sequence pipe bundle distribution form and communicates with a boiler barrel (10) througha water guide pipe, the boiler barrel communicates with the superheated screen through another water guide pipe, a high-temperature cyclone separator (14) is arranged on one side of the hearth, and the diameter of an upper barrel body of the high-temperature cyclone separator is 5-7 meters, and a center barrel (11) on the upper portion of the high-temperature cyclone separator is offset from thehigh-temperature cyclone separator; and the length-to-width ratio of the hearth is 1:2, and the shrinkage ratio of a fluidized bed at the lower part of the hearth is 0.45-0.5. Accumulated ash is effectively reduced, and the operation efficiency of the boiler is improved.

By manufacturing an organic EL element using a material for a light emitting layer including a pyrene-based compound represented by the following formula (2) as a host material and a polycyclic aromatic compound in which a plurality of aromatic rings is linked with a boron atom and a nitrogen atom or an oxygen atom as a dopant material, an organic EL element having, for example, excellent light emission efficiency is provided.

In the above formula (2), at least one hydrogen atom in a pyrene moiety may be substituted by an aryl having 6 to 10 carbon atoms or the like. Ar represents an aryl having 14 to 40 carbon atoms or a heteroaryl having 12 to 40 carbon atoms. These groups may be substituted by an aryl having 6 to 10 carbon atoms or the like. s and p each independently represent an integer of 1 or 2. s and p do not simultaneously represent 2. One or more hydrogen atoms in a compound represented by formula (2) may be each independently substituted by a halogen atom, cyano, or a deuterium atom.

Disclosed herein is a method of lowering the sublimation point of a small-molecular organic semiconducting material. The method comprises the steps of forming a suspension solution of the small-molecular organic semiconducting material in a polar solvent, and sonicating the suspension solution with an ultrasound wave under low temperature.

The invention relates to the technical field of controlled atmosphere cold storage fresh-keeping devices for fruits and vegetables, and specifically relates to a moving type dry ice slow-release and pre-cooling litchi fresh-keeping device. The fresh-keeping device includes a pre-cooling chamber for placing litchis or other fruits and vegetables and a dry ice slow-release refrigeration chamber forrefrigeration; a dry ice sublimation heat exchange system arranged in the dry ice slow-release refrigeration chamber includes an air inlet, a storage cavity, a dry ice sublimation heat exchange basketand an air outlet; the dry ice sublimation heat exchange basket is the place that dry ice can continuously perform sublimation and heat exchange; and the air inlet and the air outlet are respectivelyarranged in the walls of the storage cavity. Thus, field pre-cooling problems after the picking of the litchis can be effectively solved; and the fresh-keeping device has multiple advantages of cooling and sterilizing, and can avoid the litchis from being frostbitten and avoid unclean water from polluting the fruits, so that the fresh-keeping effects of the litchis can be realized to the greatestextent at the first link of litchi fresh-keeping cold chains.

The invention provides a catalyst for preparing maleic anhydride by benzene oxidation. The catalyst comprises a catalyst carrier, an active component and a heat conduction material. By using the catalyst provided by the invention, reaction heat conduction and dispersion can be better realized, deep oxidation is avoided, the heat transfer performance is improved, the performance of the catalyst isimproved, and the catalyst has relatively high benzene conversion rate and maleic anhydride quality yield.