Abstract:
Analyst for polymerization of olefin is provided which comprises a clay mineral (a) having been modified with a compound (b) capable of introducing a cation into layer interspaces in the clay mineral; a metallocene compound (c); and an organoaluminum compound (d). This catalyst is inexpensive and yet has excellent activity for polymerization of olefin. The process for polymerization or copolymerization of olefins is also provided.
Abstract:
Novel catalysts for polymerization of ethylene or .alpha.-olefins, comprising a metallocene, an organoaluminum compound an ionic compound, and a boron compound, or comprising an ionic metallocene, an organoaluminum compound and a boron compound. Process for polymerization of ethylene or .alpha.-olefins by use of the above catalysts.
Abstract:
A novel catalyst for polymerization of a vinyl compound is provided which comprises, as a catalyst component (A), an organometal complex represented by General Formula (1) below: ##STR1## where Cp.sup.1 and Cp.sup.2 are independently a substituted or unsubstituted cyclopentadienyl group; R.sup.1 is a group selected from alkylene groups or arylalkylene groups having 1 to 20 carbons, dialkylsillylene groups, dialkylgermanylene groups, alkylphosphinediyl groups, or alkylimino groups, and R.sup.1 crosslinking Cp.sup.1 and Cp.sup.2 together; m is 0 or 1; M is titanium, zirconium, or hafnium; and R.sup.2, R.sup.3, and R.sup.4, are independently hydrogen, a hydrocarbon group of 1 to 12 carbons, an alkoxy group, or an aryloxy group, and a catalyst component (B) represented by the general formula (2) or (3) ##STR2## where n is an integer of from 4 to 60, and R.sup.5 is a hydrocarbon group. A process for producing a vinyl compound polymer which employs the catalyst defined above is also provided.
Abstract:
A novel catalyst for polymerization of a vinyl compound is provided which comprises, as a catalyst component (A), an organometal complex represented by General Formula (1) below: ##STR1## where Cp.sup.1 and Cp.sup.2 are independently a substituted or unsubstituted cyclopentadienyl group; R.sup.1 is a group selected from alkylene groups or arylalkylene groups having 1 to 20 carbons, dialkylsillylene groups, dialkylgermanylene groups, alkylphosphinediyl groups, or alkylimino groups and R.sup.1 crosslinking Cp.sup.1 and Cp.sup.2 together; m is 0 or 1; M is titanium, zirconium, or hafnium; and R.sup.2, R.sup.3, and R.sup.4 are independently hydrogen hydrocarbon group of 1 to 12 carbons, an alkoxy group, or an aryloxy group, and a catalyst component (B) represented by the general formula (2) or (3) ##STR2## where n is an integer of from 4 to 60, and R.sup.5 is a hydrocarbon group. A process for producing a vinyl compound polymer which employs the catalyst defined above is also provided.
Abstract translation:提供一种用于聚合乙烯基化合物的新型催化剂,其包含作为催化剂组分(A)的下述通式(1)表示的有机金属络合物:其中Cp1和Cp2独立地为取代或未取代的 环戊二烯基; R 1为选自亚烷基或碳原子数为1〜20的芳基亚烷基,二烷基亚二甲苯基,二烷基亚甲基,烷基亚膦基或烷基亚氨基,R 1为交联性Cp1和Cp2; m为0或1; M是钛,锆或铪; R 2,R 3和R 4独立地为1〜12个碳原子的烃基,烷氧基或芳氧基,以及由通式(2)或(3)表示的催化剂成分(B) 2)(3)其中n为4至60的整数,R5为烃基。 还提供了一种制备使用上述催化剂的乙烯基化合物聚合物的方法。
Abstract:
Provided is a connection terminal that maintains an approximately circular shape before or after a cylindrical part is fixed by resistance welding. The connection terminal used for a connection jig interconnecting target points includes a small-diameter conductive part and a large-diameter cylindrical part disposed to surround the small-diameter conductive part. The small-diameter conductive part has a front end protruding from a front end of the large-diameter cylindrical part. A part of the small-diameter conductive part is joined to a part of the large-diameter cylindrical part. A cutout part is formed in a part of a strip portion around an axis of the cylindrical part that at least includes the portion of the large-diameter cylindrical part which is joined to the small-diameter conductive part.
Abstract:
A manufacturing method for a flat panel display module includes forming a display section having a transparent substrate with a wiring line terminal section adjacent at least one edge. A light emitting section is a center section, with a sealing cap covering the light emitting section. The sealing cap is dimensioned such that an edge of said sealing cap nearest the wiring line terminal section lies inside the wiring line terminal section. A flexible printed circuit board is provided with a semiconductor device mounted thereon. The flexible printed circuit board is connected to the wiring line terminal section of the transparent substrate, and a frame is fixed around the transparent substrate.
Abstract:
An organic electroluminescent display (EL) device includes a substrate, an organic light emitting portion formed such that a positive electrode formed in a predetermined pattern, an organic layer formed on the positive electrode, and a negative electrode having a predetermined pattern in a direction orthogonal with the positive electrode are sequentially stacked, an encapsulation cap which encapsulates the organic light emitting portion, first and second groups of electrodes which are drawn out from at least one edge of the encapsulation cap and connected to the positive and negative electrodes to drive the organic light emitting portion, and first and second dummy electrodes formed at one side of the substrate.
Abstract:
A novel catalyst for olefin polymerization is provided which comprises [A] a metallocene compound containing a transition metal selected from Groups 3, 4, 5, and 6 of Periodic Table, [B] a reaction product of topotactic reduction by electron transfer, and [C] an organoaluminum compound. The catalyst may contain additionally [D] an organoalkaline earth metal compound or an organozinc compound. This catalyst has high catalytic activity for olefin polymerization without employing an expensive catalyst component.
Abstract:
A catalyst for polymerization of an olefin is provided which comprises a metallocene compound having a specified substituted fluorenyl group, and a compound capable of reacting the metallocene compound to form a cationic metallocene compound. With this compound, a high-molecular olefin polymer having narrow composition distribution and narrow molecular-weight distribution can be obtained at a polymerization temperature of not lower than 120.degree. C.
Abstract:
A catalyst for olefin polymerization is provided which comprises, as the components, a) a metallocene compound, b) an ionizing ionic compound, c) an organoaluminum compound, and d) a Lewis base compound. This catalyst has a stable active species and improves productivity of an olefin polymer without deterioration of the catalytic activity.