Abstract: A novel supported catalyst component useful for &agr;-olefin polymerization and a method of polymerizing an &agr;-olefin using the same. The catalyst component is characterized by being prepared by contacting a complex represented by general formula (I) wherein R1 and R2 are the same or different and each represents a C1-6 linear or branched alkyl, a C1-3 haloalkyl, or optionally substituted phenyl; and X represents a halogeno with magnesium compound.

Abstract: The invention relates to a production method, wherein, with 1 equivalent of pentafluorobenzene of the formula C.sub.6 HF.sub.5 M, 0.5 to 1.5 equivalents of an organometallic compound of the formula RM, wherein R is a hydrocarbon group of 1 to 10 carbon atoms and m is an alkali metal ion, are reacted at -120.degree. to 80.degree. C. in an ether type solvent, a hydrocarbon type solvent or a mixed solvent of the ether type solvent with the hydrocarbon type solvent to generate a pentafluorophenyl alkali metal salt of the formula C.sub.6 F.sub.5 M. Next, 1 equivalent of a boron compound of the formula BX.sub.3, where X is halogen, OR or NR'R" is reacted with 2.1 to 3.9 equivalents of a pentafluorophenyl alkali metal salt of the formula C.sub.6 F.sub.5 M within a temperature range from -120.degree. to 80.degree. C. to produce tris(pentafluorophenyl)borane of the formula (C.sub.6 F.sub.5).sub.3 B or a complex of tris(pentafluorophenyl)borane coordinated with the ether type solvent.

Abstract: A method of producing tris(pentafluorophenyl)borane or its ether complex, using pentafluorobenzene as the source of the pentafluorophenyl group. The process comprises reacting pentafluorobenzene with an organo metallic compound (II) of the formula R.sub.2-n MgX.sub.n, wherein n denotes a real number of 0 or 1, X denotes a halogen atom and R denotes a hydrocarbon group of 1 to 10 carbon atoms. The reaction is carried out in an ether solvent at a temperature not less than 25.degree. C. The resulting pentafluorophenylmagnesium compound has the formula (C.sub.6 F.sub.5).sub.2-n MgX.sub.n (III), wherein n denotes a real number of 0 or 1 and X denotes a halogen atom. The pentafluorophenylmagnesium compound of the formula (III) is next reacted with a borane compound of the formula BX.sub.3, wherein X denotes a halogen atom. The reaction is carried out at a temperature in the range of 0.degree. C. to 250.degree. C., preferably 60.degree. C. to 250.degree. C.

Abstract: The invention relates to a method for producing tetrakis(pentafluorophenyl)borate derivatives of the formula (C.sub.6 F.sub.5).sub.4 BM which comprises reacting 1 equivalent of pentafluorobenzene with 0.5 to 1.5 equivalents of an organometallic compound RM at -120.degree. to 80.degree. C., in an ether type solvent, a hydrocarbon type solvent or a mixture thereof, to generate pentafluorophenyl alkali metal salt represented by the formula C.sub.6 F.sub.5 M, and then reacting either (1) not less than 3.7 equivalents of said pentafluorophenyl alkali metal salt with 1 equivalent of a boron compound BX.sub.3, or (2) not less than 0.8 equivalents of said pentafluorophenyl alkali metal salt with 1 equivalent of tris(pentafluorophenyl)borane.

Abstract: A method of producing tetrakis(pentafluorophenyl)borate derivatives of the formula [(C.sub.6 F.sub.5).sub.4 B].sub.2-n MgX.sub.n wherein n denotes an integer of 0 or 1 and X denotes a halogen atom, using pentafluorophenylmagnesium derivatives of the formula (C.sub.6 F.sub.5).sub.2-n MgX.sub.n, wherein n denotes an integer of 0 or 1 and X denotes a halogen atom, as a source of the pentafluorophenyl group.

Abstract: A highly pure borate complex of a trialkylborane with an alkylated or arylated alkali metal is obtained by reacting an aryl magnesium halide with a boron trihalide to produce a triarylborane product. The triarylborane product is then subjected to thorough removal of magnesium salts produced as by-products and removal of unreacted aryl magnesium halide. A solution of alkylated or arylated alkali metal in a hydrocarbon solvent, a straight chain ether solvent or a mixed solvent thereof is then added dropwise to the solution of triarylborane product in a hydrocarbon solvent, straight chain ether solvent or mixed solvent thereof, while keeping the temperature range from -80.degree. to 25.degree. C.

Abstract: A method of producing a high-purity triarylborane with high yield by reacting, in a solvent inert to the reaction product, a 1.0-8.0 mol/L boron halide solution with a 0.1-3.0 mol/L aryl magnesium halide solution in a straight chain ether solvent, where the molar ratio of aryl magnesium halide to boron trihalide is 3.1-3.5 to 1.0, respectively, and then the straight chain ether solvent is distilled from the reaction mixture. Distillation crystallizes out the halogenated magnesium salt which is produced as a by-product, increasing the recovery rate of the product.

Abstract: Disclosed is a production method of generating pentafluorophenyl alkali metal salt represented by a general formula C.sub.6 F.sub.5 M (M denotes an alkali metal ion) by reacting pentafluorobenzene represented by C.sub.6 HF.sub.5 with an organometallic compound represented by a general formula RM (R denotes a hydrocarbon group of 1.about.10 carbon number which may contain a functional group having no influence on the reaction.

Abstract: Disclosed is a production method, wherein, with pentafluorobenzene represented by C.sub.6 HF.sub.5, 0.5 to 1.5 equivalents of organometallic compound represented by a general formulaR.sub.2-n MgXn(wherein n denotes a real number of 0 or 1, X denotes a halogen atom, R denotes a hydrocarbon group with carbon atoms of 1 to 10, and said hydrocarbon group may contain functional groups unaffecting the reaction) are mixed within a temperature range from -40.degree. to 250.degree. C. in an ether type solvent or a mixed nonaqueous solvent of ether type solvent with hydrocarbon type solvent and reacted at 25.degree. C. or higher to obtain pentafluorophenylmagnesium derivatives represented by a following general formula(C.sub.6 F.sub.5).sub.2-n MgXn(wherein n denotes a real number of 0 or 1 and X denotes a halogen atom).

Abstract: A method of producing saturated vapor of solid metal organic compounds in the metal organic chemical vapor deposition method is disclosed, which is characterized in that, into a cylinder for metal organic chemical vapor deposition having a structure that an introducing port and a discharging port of carrier gas are provided respectively to the cylinder for metal organic chemical vapor deposition and a tube directly connected to either of these is inserted into the cylinder, a solid metal organic compound and a packing material are charged and a carrier gas fed from introducing port into cylinder is discharged from discharging port to outside of cylinder.