Abstract:
A cutting module for cutting a strand into individual pieces, the cutting module comprising a rotatable cutter wheel and a rotatable cot wheel,the cutter wheel being rotatable and having cutting blades, the cot wheel having a cylindrical outer surface and being rotatable parallel at a distance from the cutter wheel, such that cutting edges of the cutting blades contact the outer surface of the cot wheel successively in use, so that a strand which is fed between the cutter wheel and the cot wheel is cut into individual pieces, each of the cutting blades being designed such that a cutting force is directed through the cutting blade.
Abstract:
The present invention relates to a catalyst component comprising an inorganic oxide supported chromium, wherein said inorganic oxide support has been modified by a metal halide modifier, preferably aluminum trichloride or aluminum trichloride hexahydrate. The present invention also relates to a process for obtaining such a catalyst component, a catalyst system comprising said catalyst component and a process for the polymerization of olefins using said catalyst system.
Abstract:
Disclosed are optically transparent super-hydrophobic materials, and methods for making and using the same, that can include an optically transparent polymeric layer having a first surface and an opposing second surface. At least a portion of the first surface has been plasma-treated with oxygen and a fluorine containing compound. The treated surface includes nano- or micro-structures that are etched into the first surface and that are chemically modified with the fluorine containing compound. The nano- or micro-structures have a height to width aspect ratio of greater than 1, and a water contact angle of at least 150°. The optically transparent polymeric layer retains its optical transparency after said plasma-treatment. Due to their optical transparency, chemical and thermal robustness, weatherability, and self-cleaning performance, the super-hydrophobic materials disclosed are useful in high performing solar cell units in harsh semi-arid environments.
Abstract:
The invention relates to a process for the preparation of a catalyst composition comprising the steps of: A) preparing a salt of boric acid or phosphoric acid and a bivalent or trivalent metal and B) mixing the salt obtained by step A) with a crystalline aluminosilicate zeolite of the faujasite structure with SiO2/Al2O3 mole ratio in the range of about 2 to about 8 and including potassium, rubidium or cesium cations or combinations thereof, wherein step A) comprises the sub-steps of A1) mixing a borate or a phosphate of an alkali metal and a water soluble salt of the bivalent or trivalent metal to obtain a suspension, A2) adding an alkaline solution to the suspension obtained by sub-step A1) to obtain a solution having a pH of 7.0-11.5 and A3) mixing the solution obtained by sub-step A2) to obtain the salt.
Abstract translation:本发明涉及制备催化剂组合物的方法,其包括以下步骤:A)制备硼酸或磷酸与二价或三价金属的盐,和B)将步骤A)获得的盐与结晶硅铝酸盐 SiO 2 / Al 2 O 3摩尔比为约2至约8的包括钾,铷或铯阳离子或其组合的八面沸石结构的沸石,其中步骤A)包括以下子步骤:A1)将硼酸盐或磷酸盐 的碱金属和二价或三价金属的水溶性盐以获得悬浮液,A2)将碱性溶液加入通过子步骤A1)获得的悬浮液中以获得pH为7.0-11.5的溶液,和A3) 混合子步骤A2)获得的溶液以获得盐。
Abstract:
Method for forming a transparent article comprising: heating a polymer sheet 40 to form a heated sheet; creating a pressure differential across the heated sheet; pushing the heated sheet onto the contoured surface 20 to form a shaped article; and releasing the shaped article from the mold 12. Also included herein are articles made therefrom.
Abstract:
The present disclosure relates to thermoplastic electrostatic dissipative (ESD) composites. The disclosed compositions comprise a thermoplastic resin phase and a filler composition comprising a conductive carbon black and a non-conductive polymer, dispersed within the thermoplastic resin phase. Also disclosed are methods for the manufacture of the disclosed composites and articles of manufacture comprising same.
Abstract:
Disclosed is a hydrocarbon gas reforming supported catalyst, and methods for its use, that includes a catalytic material capable of catalyzing the production of a gaseous mixture comprising hydrogen and carbon monoxide from a hydrocarbon gas, and a support material comprising an alkaline earth metal/metal oxide compound having a structure of D— E, wherein D is a M1 or M1M2, M1 and M2 each individually being an alkaline earth metal selected from the group consisting of Mg, Ca, Ba, and Sr, E is a metal oxide selected from the group consisting of A1204, Si02, Zr02, Ti02, and Ce02, wherein the catalytic material is attached to the support material.
Abstract:
Disclosed is a method of making a pyrochlore comprising, obtaining a solution comprising a solvent and a metal precursor or salt thereof capable of forming a pyrochlore, wherein the metal precursor or salt thereof is dissolved in the solvent, subjecting the solution to a drying step to obtain a non-gelled or non-polymerized pyrochlore precursor material in powdered form, and subjecting the pyrochlore precursor material to a calcination step to obtain a pyrochlore.
Abstract:
Various embodiments disclosed relate to a composition. The present invention includes a polycarbonate component and a carbon fiber component including an activated surface. An interface can be formed between the polycarbonate component and the carbon fiber component.
Abstract:
A process for producing ethylene and benzene comprising introducing fuel and oxidant to combustion zone to produce combustion product; introducing first reactant mixture comprising hydrocarbons and combustion product to first reaction zone, wherein combustion product heats hydrocarbons to temperature effective for pyrolysis; allowing first reactant mixture to react via pyrolysis and produce pyrolysis product comprising unconverted hydrocarbons, C2H2, C2H4, CO, H2, H2O, and CO2; cooling pyrolysis product in quench zone to form cooled pyrolysis product; introducing cooled pyrolysis product to second reaction zone; allowing a first portion of acetylene in cooled pyrolysis product to undergo hydrogenation to ethylene and a second portion of acetylene in cooled pyrolysis product to undergo trimerization to benzene, to produce second zone effluent comprising unconverted hydrocarbons, unconverted C2H2, C2H4, C6H6, CO, H2, H2O, and CO2; and separating second zone effluent into ethylene, benzene, CO2, and syngas.