摘要:
The present invention provides a process for grinding waxes, especially paraffin waxes, using a polyol as a grinding aid in a jet mill, especially a fluidized bed counter-jet mill, to wax powders thus produced and comprising the grinding aid, and the use of the polyols as a grinding aid for waxes.
摘要:
The invention discloses a supported catalyst for SPE electrolyser applications, in which the catalyst has a support carrying nanoparticles as oxygen evolution catalysts.
摘要:
The invention relates to a molding material for producing cast moldings for the foundry industry, at least comprising: a fire-proof molding material, a binding agent for hardening the molding material, and; a proportion of a borosilicate glass. The invention also relates to a method for producing a molded body from the inventive molding material, to the corresponding casting mold or the corresponding molded body, and to its use during metal casting.
摘要:
An alkaline phenolic resole resin compositions comprising (a) an aqueous basic solution of a phenolic resole resin, (b) and a polyhydric alcohol, and their use in foundry applications.
摘要:
This invention describes a new agent for cutaneous photoprotection against UVA (I and II) and UVB radiation that contains an aqueous extract obtained from a plant in the Gramineae family from the Antarctic Continent (Deschampsia Antarctica), which presents both antioxidant and dissipation of excess UV radiation properties.
摘要:
The present application relates to a rod holder (300) configured to operate in a two-stage loading manner, which allows a rod (200) to be easily received. Also, the present application relates to a minimally invasive system for spinal surgical operation, which allows a rod to be more accurately and stably received to a pedicle screw inserted into a vertebra by using the rod holder, a rod guide and a rod guide holder. The rod holder may control a gripped state of a rod with three stages: namely a first loading stage for moving back and fixing a loading unit to fixedly grip the rod; a second loading stage for rotatably gripping the rod; and a rod mounting stage for separating the rod from the rod holder. Also, the minimally invasive spine surgery system includes a pair of rod guides (500,600) connected to upper ends of a pair of pedicle screws (100) to form a moving path of the rod; a rod holder for gripping the rod; and a rod guide holder (800) for defining an insertion path of the rod holder to guide an insertion location of the rod.
摘要:
The present invention provides a catalytic cracking reactor system and process in which a riser reactor is configured to have two sections (2, 4) of different radii in order to produce improved selectivity to propene and butenes as products.
摘要:
A gate valve has a gate movable between open and closed positions within a valve body, and walls in the gate defining an equalizer port between opposite sides of the gate. The equalizer port is adapted and arranged to be shiftable by actuation of the gate between closed and opened positions and between opened and closed positions.
摘要:
Gegenstand der Erfindung sind kristalline böhmitische Tonerden, deren Kristallite ungewöhnliche Differenzen der Abmessungen in den Raumrichtungen 020 und 120 aufweisen, ein Verfahren zur ihrer Herstellung sowie aus diesen durch Calcinieren erhältliche Folgeprodukte enthaltend jeweils metallische oder nichtmetallische Oxide oder Oxidhydrate des Zirkoniums, Titans, Lanthans und/oder Bors.
摘要:
Die Erfindung bezieht sich auf eine Vorrichtung zum Ändern der Zusammensetzung des sich im Innenraum (6) eines Containers (2) befindlichen, frei verfügbaren Gasvolumens, welche mit einer Öffnung (19) seines Gehäuses (1a) , die sich beim Ansetzen an einen Container (2) um die zu öffnenden Türen der Containertürwand (18) herum erstreckt, dichtend an den Container (2) ansetzbar ist, dass das Gehäuse (1a) Öffnungsvorrichtungen (9) für ein dem Bedarf angepasstes mechanisches Bewegen der Türen (8) zum Zwecke des Öffnens und Schließens im gasdicht verschließbaren Gehäuse-Innenraum (6) aufweist und dass an den Gehäuse-Innenraum (6) Gas-Austauschvorrichtung (4,5) für das frei verfügbare Gasvolumen im Container (1) angeschlossen sind, mittels der das Gasvolumen im Container (2) veränderbar ist und ein Verfahren zum Ändern der Zusammensetzung des sich im Innenraum (6) eines Containers (2) befindlichen, frei verfügbaren Gasvolumens.