摘要:
A process for producing a propylene based oligomer which comprises polymerizing propylene alone or propylene and an olefin other than propylene in the presence of a catalyst comprising:(A) a transition metal compound represented by the general formula (I):(R.sub.5 C.sub.5).sub.m MX.sub.4-m (I) wherein R.sub.5 C.sub.5 may be the same as or different from each other and is a hydrocarbon group-substituted cyclopentadienyl group; M is a zirconium atom or hafnium atom; X may be the same as or different from each other and is a hydrogen atom, halogen atom or hydrocarbon group; m is an integer of from 1 to 4; and(B) a compound capable of forming an ionic complex when reacted with a transition metal compound, is disclosed.According to the present invention, a propylene oligomer can be produced without using a promoter such as aluminoxane or with use of a small amount of an organoaluminum compound. Therefore, according to the present invention, such propylene based oligomers can be produced at reduced cost with use of the process comprising a simplified deashing step.
摘要:
A process for effectively producing an alpha-olefin homopolymer or copolymer of two or more of alpha-olefins without using a great amount of an aluminum compound, is disclosed. In the process for producing a cyclic olefin based polymer according to the present invention, homopolymerization of an alpha-olefin or copolymerization of two or more of alpha-olefins is effected in the presence of a catalyst comprising, as main ingredients, the following Compounds (A), (B) and (C):(A) a transition metal compound;(B) a compound capable of forming an ionic complex when reacted with a transition metal compound; and(C) an organoaluminum compound.
摘要:
According to the present invention, a composition for inducing or activating dendritic cell-like cells so as to treat or prevent cancer by immunotherapy is provided.Specifically, the following is provided: an agent for activating cancer immunity, which comprises, as an active ingredient, the following REIC protein: (a) a protein consisting of the amino acid sequence shown in SEQ ID NO: 2; or (b) a protein consisting of an amino acid sequence derived from the amino acid sequence shown in SEQ ID NO: 2 by substitution, deletion, or addition of one or more amino acid(s) and having the activity of inducing differentiation from monocytes into dendritic cell-like cells.
摘要翻译:根据本发明,提供了用于诱导或激活树突状细胞样细胞以通过免疫治疗来治疗或预防癌症的组合物。 具体而言,提供以下功能:用于激活癌症免疫的药剂,其包含作为活性成分的以下REIC蛋白质:(a)由SEQ ID NO:2所示的氨基酸序列组成的蛋白质; 或(b)通过取代,缺失或添加一个或多个氨基酸并且具有诱导从单核细胞分化的活性的由源自SEQ ID NO:2所示氨基酸序列的氨基酸序列组成的蛋白质 进入树突状细胞样细胞。
摘要:
Provided are an organic electroluminescence device having high luminous efficiency and a long emission lifetime, and a transition metal complex compound realizing the organic electroluminescence device. In the transition metal complex compound, three ligands are crosslinked with a crosslinking group having a saturated cyclic structure or a saturated polycyclic structure in a tripod manner. The organic electroluminescence device includes an organic thin film layer composed of one or multiple layers including at least a light emitting layer, the organic thin film layer being interposed between a pair of electrodes. In the organic electroluminescence device, at least one layer of the organic thin film layer contains the transition metal complex compound.
摘要:
The present invention provides an organic electroluminescence device which: brings physical properties, that is, a low ionization potential, large band gap energy, high injection efficiency, and a high mobility into balance in an excellent manner; has high heat resistance; and shows high current efficiency and a long lifetime while maintaining good luminance/voltage characteristics and good current density/voltage characteristics, and a novel amine-based compound for realizing the device. The amine-based compound is of a specific structure containing a quinoxaline ring. The organic electroluminescence device includes an organic thin film layer composed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode. In the organic electroluminescence device, at least one layer of the organic thin film layer contains the amine-based compound alone or as a component of a mixture.
摘要:
A fuel injection mount control system for an internal combustion engine includes an ECU which calculates a first amount of fuel directly drawn into each combustion chamber out of an amount of fuel injected into the intake passage via a corresponding fuel injection valve, a second amount of fuel carried off fuel adhering to the wall surface of the intake passage into the combustion chamber, and an amount of fuel to be injected into the intake passage, based on the first fuel amount and the second fuel amount, calculates an air-fuel ratio correction amount, based on an output form an air-fuel ratio sensor arranged in the exhaust system, and corrects the amount of fuel to be injected into the intake passage by the air-fuel ratio correction amount. Further, the ECU corrects the second fuel amount, based on the air-fuel ratio correction amount.
摘要:
There are disclosed a catalyst well suited for producing a styrenic polymer having a high degree of syndiotactic configuration which comprises a transition-metal compound such as pentamethylcyclopentadienyltrimethyltitanium and a coordination complex compound comprising an anion in which a plurality of radicals are bonded to a metal and a quaternary ammonium salt, the compound being exemplified by orthocyano-N-methylpyridinium tetra(pentafluorophenyl)borate, or comprises an alkylating agent such as triisobutylaluminum in addition to the above two compounds; and a process for producing a styrenic polymer having a high degree of syndiotactic configuration by polymerizing a styrenic monomer using the aforementioned catalyst. Consequently, a styrenic polymer having a high degree of syndiotactic configuration can be produced effectively without the use of an expensive aluminoxane required in a large amount if used.
摘要:
There are disclosed a catalyst which comprises a specific transition-metal compound (A) and a specific coordination complex compound (B) instead of aluminoxane, and a process for producing a styrene polymer at a reduced cost with improved efficiency by the use of the above catalyst.The catalyst according to the present invention is inexpensive compared with the conventional catalyst containing aluminoxane as the major ingredient, and exhibits a high activity in the polymerization of a styrenic monomer into styrene polymer with a high degree of syndiotacticity as well as a high yield and conversion rate.
摘要:
A method for producing continuously 100% mesophase composed only of Q.I. component and Q.S. component in which a raw material of petroleum origin pitch is subjected continuously to a heat-treatment step in an amount necessary to produce a 100% mesophase taken out from a mesophase-growing and coalescing step, transferring the heat-formed pitch formed in the heat treatment step to a mesophase growing and coalescing step, taking out a definite amount of a non-mesophase pitch from the mesophase growing and coalescing step after stirring and heating treatment to return it to the heat-treatment step to repeat the stirring and heating treatment, and at the same time to take out 100% mesophase having constant properties from the mesophase growing and coalescing step.
摘要:
An aromatic amine derivative represented by the following formula (1), wherein L is a linking group, Z is a group represented by the following formula (2) and A1 and A2 are independently a monovalent group represented by the following formula (3):