摘要:
A catalyst comprises a composition resulting from mutual contact of the following Components. (A), (B), (C) and (D):said Component (A) being a reaction product resulting from mutual contact of components (a), (b) and (c);said component (a) being represented by the formulaMe.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sup.1.sub.4-p-q Iwherein R.sup.1 and R.sup.2 each are a C.sub.1 -C.sub.24 hydrocarbon moieties, X.sup.1 is a hydrogen atom or a halogen atom, Me.sup.1 is titanium, zirconium or hafnium, p and q are 0.ltoreq.p.ltoreq.4, 0.ltoreq.q.ltoreq.4 and 0.ltoreq.p+q.ltoreq.4,said component (b) being represented by the formulaMe.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n IIwherein R.sup.3 and R.sup.4 each are a C.sub.1 -C.sub.2 4 hydrocarbon moieties, X.sup.2 is a hydrogen atom or a halogen atom, Me.sup.2 is an element of Groups I to III in the Periodic Table, z is a valence of Me.sup.2, and m and n are 0.ltoreq.m.ltoreq.z, 0.ltoreq.n.ltoreq.z and 0.ltoreq.m+n.ltoreq.z, and said component (c) being an organocyclic compound having two or more conjugated double bonds;said Component (B) being a modified organoaluminum compound having Al-O-Al bonds;said Component (C) being an organocyclic compound having two or more conjugated double bonds which is different from component (c); andsaid Component (D) being an inorganic carrier or particulate polymer carrier. The disclosed catalyst find extensive use in the manufacture of olefinic polymers having a relatively high molecular weight and a relatively wide molecular weight distribution as well as olefinic copolymers having a relatively narrow composition distribution.
摘要:
An olefin polymerization is conducted in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being prepared by reacting the following components [I], [II] and [III] with one another:[I] a reaction product obtained by reacting the following components (1), (2) and (3) with one another:(1) a silicon oxide and/or an aluminum oxide;(2) a reaction product obtained by the reaction of a magnesium halide and a compound represented by the general formula Me(OR).sub.n X.sub.z-n where Me represents an element of Groups I to IV in the Periodic Table, z represents the valence of the element Me, n is 0
摘要翻译:在包含固体催化剂组分和有机金属化合物的催化剂的存在下进行烯烃聚合,所述固体催化剂组分通过使以下组分[I],[II]和[III]彼此反应制备:[I] 通过使以下组分(1),(2)和(3)彼此反应获得的反应产物:(1)氧化硅和/或氧化铝; (2)通过卤化镁与通式Me(OR)n X z-n表示的化合物反应得到的反应产物,其中Me表示周期表中第Ⅳ至Ⅳ组元素,z表示 元素Me,n为0
摘要:
A novel olefin polymerization catalyst is obtained by contacting the following components (1) to (5) with one another: (1) a compound represented by the general formula Me.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sup.1.sub.4-p-q, (2) a compound represented by the general formula Me.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n, (3) an organocyclic compound having conjugated double bonds; (4) a modified organoaluminum compound having Al--O--Al bond(s); and (5) a silicon oxide and/or an aluminum oxide both having characteristic average particle diameter, specific surface area, volume of pores ranging in pore radius from 18 to 1,000 Angstroms, apparent specific gravity not lower than 0.32, and proportion of 50 .mu.m or smaller particles.
摘要:
A color temperature detecting device includes a color component detecting element for detecting electric charges for color components excited by incident light and accumulated with the lapse of time to produce color component signals, a comparison circuit for comparing the color component signals with respective given reference signals to produce discharge time length signals which correspond to the respective accumulated Amounts of the electfie charges, and an output part for obtaining a ratio between the color components on the basis of the discharge time length signals produced from the comparison circuit to produce a signal according to the ratio as color temperature information.
摘要:
A dielectric filter in which input/output coupling electrode layers are arranged on the surfaces of the substrate sections, separated from the resonating conductors by an adjustable distance, the coupling capacitance of the device can be chosen within a wide range of selection because of the relatively large area of the surfaces. The dielectric filter comprises an interstage coupling electrode layer which is formed on a temporary surface of a dielectric substrate that has a relatively large area and becomes internal in the final product with a predetermined but adjustable distance from a pair of resonating conductors arranged in the dielectric substrate.
摘要:
A stripline filter device including two or more dielectric substrate assemblies each having a pair of superimposed dielectric substrates between which at least one resonator conductor is disposed, wherein the dielectric substrate assemblies are stacked with an intermediate dielectric layer being sandwiched between the adjacent substrate assemblies so as to couple the resonator conductors in a direction perpendicular to the plane of each substrate, and by suitably setting the material and/or the thickness of each intermediate dielectric layer the coupling quantity between the resonators can be adjusted to obtain a desired frequency bandwidth.
摘要:
A method of adjusting a frequency response in a stripline filter device having a pair of stacked dielectric substrates with a plurality of stripline resonator conductors being sandwiched therebetween, wherein the frequency adjusting of the filter is performed by partially exposing the open circuit end of each of the resonator electrodes or a filamentary conductor for connecting the open end to the ground conducting layer on the outer surface of one of the dielectric substrates and then partially removing the partially exposed open circuit end of each resonator electrode or the partially exposed filamentary conductor connected to the open circuit end.
摘要:
A method of and a system for controlling a hydraulic shock absorber of an automobile are provided. In the shock absorber, a flow of damping fluid induces a load on an actuator of the shock absorber during bouncing and rebouncing of the shock absorber, and the actuator is actuated in response to an output signal of a control unit. In order for the actuator to counteract the load applied thereto, the output signal is modified in response to the load. According to the embodiment, the load is determined by a table look-up operation based on an input load detected by a load sensor mounted to the automobile.
摘要:
A frequency setting system for a radio transmission apparatus of the type transmitting a signal in the form of bursts and changing transmission frequency burst by burst. A frequency division data signal representative of a frequency division number and a strobe signal representative of frequency setting are fed to a frequency synthesizer. The timings for generating the frequency division data signal and strobe signal are determined with no regard to the locking time of the frequency synthesizer which is dependent on the kind of the synthesizer, frequency, etc.
摘要:
A method of adjusting a frequency response in a filter device of a three-conductor type having a pair of stacked dielectric substrates with a plurality of strip-line resonator conductors being sandwiched therebetween, wherein the frequency adjusting of the filter is performed by partially removing the ground conducting layer provided on the peripheral portion of each dielectric substrate at regions corresponding to the open circuit ends, or to the open circuit ends and the short circuit ends of the resonator conducting layers.