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569results about How to "Form evenly" patented technology

Foam of thermoplastic urethane elastomer composition and process for producing the foam

InactiveUS6849667B2Improve mechanical propertiesSolve uneven compositionPolymer scienceCarbamate
The method of the present invention for producing a urethane-based thermoplastic elastomer composition foam comprises the steps of:
    • adding and mixing 0.1 to 30 parts by weight of carbon dioxide (B) to 100 parts by weight of a urethane-based thermoplastic elastomer composition (A) in a molten state, wherein said urethane-based thermoplastic elastomer composition (A) comprises a urethane-based thermoplastic elastomer (A-1) and other thermoplastic elastomer (A-2) in an (A-1)/(A-2) ratio of 20/80 to 99/1 by weight, to form a molten urethane-based thermoplastic elastomer composition (C) which is in a state of a mixture of the urethane-based thermoplastic elastomer composition (A) and the carbon dioxide (B) (gas dissolving step); and
    • lowering a temperature of said molten urethane-based thermoplastic elastomer composition (C) (cooling step).
The present invention can produce the urethane-based thermoplastic elastomer foam of stable quality over a range from low foamed product to highly foamed product by adding a given quantity of carbon dioxide in the molten urethane-based thermoplastic elastomer quantitatively and stably. It can also produce the foam excellent in flexibility, thermal insulation and surface appearances. It is also excellent in safety, because of use of carbon dioxide in place of the common foaming agent of fluorochlorohydrocarbon or butane, thus causing no air pollution or destruction of the ozone layer.
Owner:MITSUI CHEM INC

Method for preparing low-carbon olefin catalyst through carbon dioxide hydrogenation

The invention relates to a method for preparing a low-carbon olefin catalyst through carbon dioxide hydrogenation. The low-carbon olefin catalyst comprises the following element components: iron, zirconium, potassium and oxygen, the atomic molar ratio of zirconium to iron is (0-1):1, and the atomic molar ratio of iron to potassium is 10:1. The method for preparing the low-carbon olefin catalyst through carbon dioxide hydrogenation comprises the following steps: (1) weighing an iron source and a zirconium sourse, preparing aqueous solution, and marking the prepared aqueous solution as solution A; (2) adding a precipitator into the solution A, stirring, and marking the obtained solution as solution B; (3) carrying out microwave induction on the solution B; (4) centrifuging, filtering and washing reaction products, drying and roasting the obtained sample, and marking the roasted sample as a sample C; (5) weighing a potassium source, dissolving the potassium source in deionized water, impregnating the sample C, drying, and marking the dried sample as a sample D; and (6) carrying out tabletting, pelletizing and hydrogen gas reduction on the sample D, so that a catalyst sample is obtained. The method for preparing the low-carbon olefin catalyst through the carbon dioxide hydrogenation has the advantages that conversion ratio of carbon dioxide raw material is high, selectivity of low-carbon olefin is high, few CH4 and CO byproducts are produced, the catalyst is stable, and powder particles of the obtained catalyst are small and uniform.
Owner:NINGXIA UNIVERSITY

Crystallizer protective slag for effectively controlling carbon steel cracks in compact strip production (CSP)

The invention discloses crystallizer protective slag for effectively controlling carbon steel cracks in a compact strip production (CSP). The crystallizer protective slag comprises the following chemical components in percentage by mass: 35 to 38 percent of CaO, 28 to 31 percent of SiO2, 1 to 3 percent of Al2O3, 1 to 2 percent of MgO, 0.5 to 1.5 percent of Fe2O3, 10 to 11.5 percent of F, 9 to 11.5 percent of Na2O, 1.5 to 3.5 percent of MnO, 5 to 8 percent of fixed carbon, and the balance of inevitable trace elements. Through the crystallizer protective slag for controlling the carbon steel cracks in the CSP, the alkalinity is improved by 0.04 to 0.09, the alkalinity is controlled to be 1.20 to 1.25, the constraint that the alkalinity cannot be more than 1.16 in the field is broken, the viscosity is controlled to be 0.08 to 0.09Pa.S, and the melting point is from 1,155 to 1,185 DEG C; capabilities of dissolving and absorbing inclusions are improved, and heat transfer is retarded by reducing a vitreous body, so that an aim of reducing longitudinal cracks is fulfilled; and by adjusting the proportioned carbon and controlling the thickness of a liquid slag layer, bonding steel leakage caused by high crystallization temperature and deteriorated lubricating performance due to over high alkalinity of the protective slag is relieved.
Owner:GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD

High-speed feeding and discharging system and method

The invention discloses a high-speed feeding and discharging system, which comprises a control assembly, a bottle collecting net belt, a target platform and a bottle pushing assembly, wherein the target platform and the bottle pushing assembly are respectively located at two sides of the bottle collecting net belt; a bottle feeding end of the bottle collecting net belt is in butt joint with a bottle feeding net belt; the bottle feeding end is provided with a bottle feeding assembly; a bottle stopping assembly is arranged at one end, opposite to the bottle feeding end, of the bottle collecting net belt; the bottle collecting net belt is provided with a detection assembly used for detecting the length of a bottle queue on the bottle collecting net belt; and the detection assembly is connected with the control assembly. The invention also discloses a high-speed feeding and discharging method. When a condition that the length of the bottle queue on the bottle collecting net belt is identical with the length of the target platform is detected, the control assembly stops the transmission of the bottle collecting net belt and the bottle feeding net belt, and the bottle queue on the bottle collecting net belt is pushed towards the bottle stopping assembly, so that after the bottle queue between the bottle feeding assembly and the bottle stopping assembly is in butt joint with a bottle feeding end of the target platform, the bottle queue is pushed onto the target platform by the bottle pushing assembly. The system and the method have the advantage that the feeding speed is improved.
Owner:TRUKING TECH LTD

Electrode including porous coating layer, method for manufacturing same, and electrochemical device including same

The present invention relates to an electrode provided with a porous coating layer having a thickness deviation represented by formula 1 below, and to a method for manufacturing same, wherein the electrode comprises: a collector; an electrode active material layer formed on at least one surface of the collector, and including a composition consisting of electrode active material particles and a first binder polymer; and a composition consisting of inorganic particles and a second binder polymer, which is formed on the surface of the electrode active material layer. [Formula 1]: (Tmax-Tmin) / Tavg <= 0.35. In formula 1, when sections of the porous coating layer are observed using an electron microscope, Tmax is the maximum thickness of the porous coating layer formed on the surface of the electrode active material layer, Tmin is the minimum thickness of the porous coating layer, and Tavg is the average thickness of the coating layer. The present invention enables the manufacture of an electrode using a method for simultaneously drying the electrode active material layer and the porous coating layer, and prevents the binder polymer of the porous coating layer from infiltrating the electrode active material layer so as to impart excellent quality to the electrode. Further, the uniform formation of the porous coating layer contributes to the stability of a battery.
Owner:LG ENERGY SOLUTION LTD
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