摘要:
An olefin polymer that is obtained using an olefin polymerization catalyst that includes a solid catalyst component for olefin polymerization that includes titanium, magnesium, a halogen, and an ester compound (A) represented by the following formula (1): R1R2C═C(COOR3)(COOR4), an organoaluminum compound, and an optional external electron donor compound, exhibits primary properties (e.g., molecular weight distribution and stereoregularity) similar to those of an olefin polymer obtained using a solid catalyst component that includes a phthalic ester as an electron donor.
摘要:
A solid catalyst component for olefin polymerization includes titanium, magnesium, a halogen, and a compound represented by the following formula (1): R1O—C(═O)—O—Z—OR2, and an olefin polymerization catalyst includes the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound. An olefin polymer that has a moderate molecular weight distribution while maintaining high stereoregularity can be produced by utilizing the solid catalyst component and the olefin polymerization catalyst.
摘要:
An olefin polymer that is obtained using an olefin polymerization catalyst that includes a solid catalyst component for olefin polymerization that includes titanium, magnesium, a halogen, and an ester compound (A) represented by the following formula (1): R1R2C═C(COOR3)(COOR4), an organoaluminum compound, and an optional external electron donor compound, exhibits primary properties (e.g., molecular weight distribution and stereoregularity) similar to those of an olefin polymer obtained using a solid catalyst component that includes a phthalic ester as an electron donor.
摘要:
A solid catalyst component for olefin polymerization includes titanium, magnesium, a halogen, and a compound represented by the following formula (1): R1O—C(═O)—O—Z—OR2, and an olefin polymerization catalyst includes the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound. An olefin polymer that has a moderate molecular weight distribution while maintaining high stereoregularity can be produced by utilizing the solid catalyst component and the olefin polymerization catalyst.
摘要:
A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds selected from specific aromatic dicarboxylic diesters into contact with each other to effect a reaction, followed by washing, a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing, and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.
摘要:
An object of the invention is to provide an EL device which is capable of preventing reflection of external light or ambient light and displaying with a high contrast. By using a laminated film composed of a Cr metal film 6b and a Cr.sub.2 O.sub.3-x film 6a which is an oxide film of Cr, or a Mo metal film 16b and a MoO.sub.3-x film 16a which is an oxide film of Mo, which are laminated as a rear electrode 6 of the EL device, light absorbing effect in the rear electrode 6 is increased and the reflection of external light or ambient light is suppressed thereby improving the contrast.
摘要翻译:本发明的目的是提供一种EL装置,其能够防止外部光或环境光的反射和高对比度的显示。 通过使用由Cr金属膜6b和作为Cr的氧化物膜的Cr 2 O 3-x膜6a或Mo金属膜16b和作为Mo的氧化物膜的MoO 3-x膜16a构成的层压膜,层压 作为EL器件的后电极6,后电极6中的光吸收效果增加,并且外部光或环境光的反射被抑制,从而改善对比度。
摘要:
A method of manufacturing a thin film electroluminescent (EL) device in which an electron beam is directed to a pellet of a substance containing an additive agent, and the substance is evaporated and deposited on a substrate and a change per unit time of the growing deposit is monitored by a sensor, comprising the steps of (1) controlling energy of the electron beam in accordance with an output of the sensor during a first time interval for adjusting an evaporation rate of the substance to a specified rate, (2) maintaining the controlled energy of the electron beam constant during a second time interval, larger than the first time interval and alternatively repeating steps (1) and (2).
摘要:
A thin-film EL panel of the layer structure with transparent electrodes and back electrodes sandwiching therebetween insulative layers and a light-emitting layer and forming display picture elements on the panel is characterized as having the transparent electrodes shaped differently at these display picture elements and other places.
摘要:
A thin film EL element has a glass substrate, a pair of electrode layers formed on this glass substrate, and an electroluminescent layer sandwiched between these electrode layers. The glass substrate is of non-alkali type and has volume resistivity of 10.sup.6 ohm-cm or greater at 600.degree. C., alkali content of 0.5 wt % or less, and strain point of 600.degree. C. or higher.
摘要:
When material is thrown in a hopper, material of small particle diameter is loaded in between breaking teeth on two rotors and transferred toward a crushing space between the rotors by rotation. The material of small particle diameter is pressed by compression teeth on one rotor against cutting teeth on the other rotor, thereby causing compressive crushing. When material of small particle diameter clogs the crushing space and stays therein, the cutting teeth cut the material to form a gap. The breaking teeth on the two rotors move odd-shaped material or the like toward the crushing space by similar action. Consequently, the odd-shaped material assumes such a posture that it is caught between the breaking teeth, and is crushed by the breaking teeth or cut by the wedge effect.