摘要:
A catalyst for producing a polyolefin having a high melting point and a high stereoregularity, which comprises: (A) a solid catalyst component containing titanium, magnesium and halogen, (B) an organic aluminum compound, and (C) an organic silicon compound represented by Formula (1); ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each represents a C.sub.1-3 hydrocarbon group.
摘要:
A catalyst for producing a polyolefin having a high melting point and a high stereoregularity, which comprises: (A) a solid catalyst component containing titanium, magnesium and halogen, (B) an organic aluminum compound, and (C) an organic silicon compound represented by formula (1): ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 each represents a C.sub.1-3 hydrocarbon group.
摘要:
A granular fertilizer with a coating which is decomposable by soil microorganisms, preferably a coating which is decomposed and degraded both on the surface layer of the soil and in the soil, and a process for producing the granular fertilizer, which coating contains a poly 3-hydroxy-3-alkylpropionic acid as an indispensable ingredient, and if necessary, a resin or a low-molecular resin and further, if necessary, an inorganic or organic powder, and which process comprises adding an organic solvent solution of the poly 3-hydroxy-3-alkylpropionic acid, and if necessary, the resin, and if necessary the powder (dispersed in the solution) to a granular fertilizer in fluided state in the form of spray, and when added, blowing a high speed hot air stream onto the fertilizer to thereby instantaneously remove the solvent and also dry the resulting fertilizer.
摘要:
This invention relates to a polymerization reaction apparatus which is composed of a vertical cylindrical vessel, a rotating shaft inside the vessel, a plurality of agitating blades attached to the shaft, and a large number of plate-like heat transfer elements attached to the inner wall of the vessel, disposed radially between the agitating blades, and internally equipped with a passage for a heat transfer fluid, and in which apparatus a polymerizing mass passes through a gap between the rotating shaft, the agitating blades, and a large number of the plate-like heat transfer elements and exchanges heat with a heat transfer fluid circulating inside the plate-like heat transfer elements, effecting uniform removal of the reaction heat or uniform heating of the polymerizing mass and preventing vertical mixing.
摘要:
The present invention is directed to a steam turbine rotor which comprises an iron base alloy containing 0.05 to 0.2 wt % of carbon, 0.1 wt % or less of silicon, 0.05 to 1.5 wt % of manganese, more than 8.0 wt % to less than 13 wt % of chromium, less than 1.5 wt % of nickel, 0.1 to 0.3 wt % of vanadium, 0.01 to 0.1 wt % of niobium, 0.01 to 0.1 wt % of nitrogen, 0.02 wt % or less of aluminum, less than 0.50 wt % of molybdenum and 0.9 to 3.0 wt % of tungsten; contents of molybdenum Mo and tungsten W satisfying the following formulae0.75.ltoreq.1/2W+Mo and3.ltoreq.W/Mo;a .delta.-ferrite phase and a large grain boundry carbide being scarcely contained basically in the metallic structure; a matrix of martensite being formed therein.
摘要:
The present invention has an object to provide a curable composition for transfer materials. The curable composition is applicable to a UV nanoimprint process capable of forming micropatterns with high throughput, is applicable to a thermal nanoimprint process in some cases, and is capable of forming a micropattern having high selectivity on etching rates regarding a fluorine-based gas and an oxygen gas. A curable composition for transfer materials of the present invention contains a curable silicon compound produced by subjecting a silicon compound (A) having a Si—H group and a compound (B) having a curable functional group and a carbon-carbon double bond other than the curable functional group to a hydrosilylation reaction.
摘要:
According to the present invention, a novel epoxy group-containing copolymer, including a production process thereof, and an epoxy (meth)acrylate copolymer starting from the epoxy group-containing copolymer, including a production process thereof are provided. The epoxy group-containing copolymer of the present invention contains a specific epoxy group-containing repeating unit and an olefin-based repeating unit. A novel epoxy (meth)acrylate copolymer of the present invention is produced by reacting the epoxy group-containing copolymer with (meth)acrylic acid.
摘要:
An antigen exposure chamber for quickly performing cleaning and drying with high quality is provided. The antigen exposure chamber of the present invention includes: a cleaning water supply device for supplying cleaning water for cleaning the antigen exposure chamber; cleaning nozzles 23 and 24 for jetting the cleaning water supplied from the cleaning water supply device, into the antigen exposure chamber 1 and ducts 17 of fan units to clean the antigen exposure chamber 1 and the ducts 17; a floor surface 15 of the antigen exposure chamber; and an exhaust device provided below the floor surface to exhaust air from the floor surface of the antigen exposure chamber and collect and drain the cleaning water during cleaning. Further, the cleaning water supply device includes a water purifying device 19 for purifying tap water; a pure water tank 20 for storing the purified water; and a pure water supply pump 21 for pumping the pure water from the pure water tank into the cleaning nozzles. The exhaust device includes an air exhaust port 4 for exhausting air from the antigen exposure chamber; drain pans 14 for receiving and collecting the cleaning water flowing down from the antigen exposure chamber; a drain tank 27 for storing the cleaning water collected by the drain pans; a drain pump 28 for draining the cleaning water stored in the drain tank into a drain pipe; and a drying exhaust-air fan 29 for exhausting the air from the antigen exposure chamber through the drain tank to accelerate drying in the antigen exposure chamber after the cleaning water is drained.
摘要:
The antenna apparatus includes first to fourth antenna elements successively arranged at regular angular intervals around the central point on the same plane and respectively having first to fourth feed points, and a phase shifter delaying the phase of the received electric wave approximately by 90 degrees. The unidirectivity of the antenna apparatus is controlled in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees by selectively connecting the first to fourth feed points, the phase shifter and a television receiver. Therefore, multipath interference in these directions can be suppressed.
摘要:
First, second, third and fourth dipole antennas (14, 16, 18, 20) are disposed in a casing (1). The first through fourth dipole antennas are arranged in the same plane, and are disposed in line symmetry with respect to first through fourth imaginary lines (A, B, C, D) passing through the center of the casing (1) at an angle of 45 degrees between adjacent imaginary lines.