Abstract: The invention provides condensed polycyclic ?-conjugated organic materials and manufacturing methods for the materials. A metal reducing agent is reacted with a straight-chain, triple bond-containing hydrocarbon (aryl acetylene compound, phenyl acetylene compound), the hydrocarbon being a benzene ring with an organic silicon as a substituent, so as to allow an intramolecular reductive cyclization reaction to proceed between the silicon and the triple-bond carbon. The reaction produces condensed polycyclic ?-conjugated organic materials of the invention. The invention provides light-emitting materials applicable for organic electroluminescent devices, condensed polycyclic ?-conjugated organic materials applicable for charge transport materials, their intermediate products, and a manufacture method for condensed polycyclic ?-conjugated organic materials.

Abstract: A polycyclic fused ring type ?-conjugated organic material (VIIa, VIIb, VIIc, VIId) is obtained in the following manner. That is, as shown in Scheme 1 below, a starting material (I) is dimetalated with an organometallic base. The starting material (I) thus dimetalated is trapped with an organosilicon reagent (i: (1) n-BuLi or t-BuLi; (2) HMe2SiCl). As a result, an intermediate is obtained. Thereafter, the intermediate is allowed to react with a metal reductant. This causes an intramolecular reductive cyclization reaction to proceed. As a result, a dianion intermediate is produced. The dianion intermediate is trapped with an electrophile (ii: (1) LiNaph, THF, rt, 5 min; (2) electrophile or NH4Cl) In this way, the polycyclic fused ring type ?-conjugated organic material is obtained.

Abstract: A diacetylene derivative was used as a starting material, and was subjected to dilithiation using an organolithium reagent. The resulting product was allowed to react with an excessive amount of chalcogen. Accordingly, an intramolecular cyclization reaction proceeded simultaneously with formation of skeletons of three rings. As a result, a chalcogen-containing fused polycyclic organic material was found to be obtained which has the three rings and a dichalcogenid bond. Further, by subjecting the resulting compound to a dechalcogenation reaction, a heteroacene was found to be obtained in a satisfactory yield. These synthetic techniques have made it possible to synthesize a series of highly planar chalcogen-containing ?-electron system materials. Therefore, it is possible to provide (i) a chalcogen-containing fused polycyclic organic material capable of exhibiting excellent charge-transporting properties and (ii) a method for producing the material.

Abstract: A polymer characterized by comprising repeating units represented by the following formula (1) and having a number-average molecular weight, in terms of polystyrene, of 103 to 108. (In the formula, R1 represents hydrogen, alkyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl, amino, substituted amino, silyl, substituted silyl, silyloxy, substituted silyloxy, monovalent heterocyclic group, or halogeno; and rings D and E each represents an optionally substituted aromatic ring.

Abstract: The invention provides condensed polycyclic ?-conjugated organic materials and manufacturing methods for the materials. A metal reducing agent is reacted with a straight-chain, triple bond-containing hydrocarbon (aryl acetylene compound, phenyl acetylene compound), the hydrocarbon being a benzene ring with an organic silicon as a substituent, so as to allow an intramolecular reductive cyclization reaction to proceed between the silicon and the triple-bond carbon. The reaction produces condensed polycyclic ?-conjugated organic materials of the invention. The invention provides light-emitting materials applicable for organic electroluminescent devices, condensed polycyclic ?-conjugated organic materials applicable for charge transport materials, their intermediate products, and a manufacture method for condensed polycyclic ?-conjugated organic materials.

Abstract: A polymer characterized by comprising repeating units represented by the following formula (1) and having a number-average molecular weight, in terms of polystyrene, of 103 to 108. (In the formula, R1 represents hydrogen, alkyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl, amino, substituted amino, silyl, substituted silyl, silyloxy, substituted silyloxy, monovalent heterocyclic group, or halogeno; and rings D and E each represents an optionally substituted aromatic ring.

Abstract: This invention relates to a borane derivative represented by the formula (1) and an organic electroluminescent device: wherein R1 to R8 and Z2 are each independently a hydrogen atom, a saturated or unsaturated hydrocarbon group, an aromatic group, a heterocyclic group, a substituted amino group, a substituted boryl group, an alkoxy group or an aryloxy group; X, Y and Z1 are each independently a saturated or unsaturated hydrocarbon group, an aromatic group, a heterocyclic group, a substituted amino group, an alkoxy group or an aryloxy group; substituents of Z1 and Z2 may be united to form a condensed ring; and n is an integer of 1-3; with the provisos that when n is two or more, Z1s may be different from each other; and that cases where n is 1, X, Y and R2 are each methyl, and R8 is hydrogen or substituted boryl and those where n is 3 and Z1 is methyl are excluded.

Abstract: This invention relates to a borane derivative represented by the formula (1) and an organic electroluminescent element: 1

Abstract: An electroluminescence element (EL) obtained by using a silacyclopentadiene derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms and R.sub.1 to R.sub.4 are hydrogen, halogens, alkyl radicals with from 1 to 6 carbon atoms, or a condensed (un)substituted ring if being adjacent).

Abstract: The present invention provides a silacyclopentadiene derivative represented by the following Formula (1): ##STR1## wherein X.sub.1 and Y.sub.1 represent independently a halogen atom, an amino group, a hydroxyl group, or an amino group or a hydroxyl group each having a substituent; R.sub.1 to R.sub.4 represent independently a hydrogen atom, a halogen atom, an alkyl group, an amino group, a silyl group, an aryl group, a cyano group, or the respective groups describe above each having a substituent; out of the groups represented by R.sub.1 to R.sub.4, those adjacent may be combined with each other to form rings; when R.sub.1 and R.sub.4 are phenyl groups or when combined are R.sub.1 with R.sub.2 and R.sub.3 with R.sub.4 respectively to form benzene rings, X.sub.1 and Y.sub.1 are not a chlorine atom or a hydroxyl group; and when R.sub.1 and R.sub.4 are methyl groups, X.sub.1 and Y.sub.1 are not bromine atoms.

Abstract: An electroluminescence element (EL) obtained by using a silacyclopentadiene. derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms and R.sub.1 to R.sub.4 are hydrogen, halogens, alkyl radicals with from 1 to 6 carbon atoms, or a condensed (un)substituted ring if being adjacent).

Abstract: 2,5-Reactive substituent group-containing siloles of the following general formula are provided ##STR1## wherein R.sup.1 to R.sup.4 may be the same or different and independently represent a monovalent hydrocarbon group having from 1 to 12 carbon atoms or a hydrogen atom, and R.sup.5 and R.sup.6 may be the same or different and independently represent a group selected from monovalent hydrocarbon-substituted sulfur, selenium, silicon, germanium, tin and phosphorus, or a halogen atom. Polycondensates of the siloles and processes for preparing the siloles and polycondensates are described.

Abstract: A thiophene-silole copolymer represented by the formula below and its method of manufacture are disclosed; ##STR1## wherein, R is a monofunctional hydrocarbon group having 1 to 20 carbon atoms or hydrogen, A and B are alkyl groups, aromatic groups, alkenyl groups, or represent an aliphatic group forming a ring wherein A is bonded to B, m and p are integers no less than 1, n is a natural number which can be 0, X is a hydrogen or halogen atom, and Y is a hydrogen atom, halogen atom or thiophene.

Abstract: For the iron cores of an electrical machinery and apparatuses, such as transformers, electric motors and generators, mostly a grain-oriented electromagnetic steel sheet is used. Since the grain-oriented electromagnetic steel sheet has a (110) [001]texture and is thus easily magnetized in the rolling direction, the direction of magnetic flux in the iron cores is required to be coincident with the rolling direction. However, this requirement cannot be completely fulfilled due to the shape and an operation efficiency of producing the iron cores as well as generation of a magnetic reluctance in the butted iron-core elements. Laser irradiation regions are formed, according to the present invention, for example, on the following: the parts of the iron core where the rotational magnetic field is generated; the entire surface of the I-type elements or: the major part of the E or C type element.

Abstract: Conventional beam-welding methods have disadvantages in that the total energy efficiency is low and that the bonding zone and HAZ spread due to indirect heating of the weld zone. In the present invention, a wedge-shaped space is formed between the non-contact parts of the articles, and an energy beam, such as a laser beam, an ion beam, and a plasma arc, is projected into the wedge-shaped space so as to heat the weld zone or the parts of articles which will later be joined. The controlling apparatus of the present invention controls the power of, for example, a laser beam based on the detecting of travelling speed of sheets and the like.

Abstract: In a method of producing a grain-oriented electromagnetic steel sheet, a laser beam is irradiated onto the steel sheet, which has been subjected to a final high temperature annealing in order to approximate the crystal orientation of the sheet in a (110) [001] orientation. Because of the laser beam irradiation, regions of high dislocation density are locally formed in the steel sheet and subdivide the magnetic domains, with the result that a low watt loss is achieved.

Abstract: Conventional beam-welding methods have disadvantages in that the total energy efficiency is low and that the bonding zone and HAZ spread due to indirect heating of the weld zone. In the present invention, a wedge-shaped space is formed between the non-contact parts of the articles, and an energy beam, such as a laser beam, an ion beam, and a plasma arc, is projected into the wedge-shaped space so as to heat the weld zone or the parts of articles which will later be joined. The controlling apparatus of the present invention controls the power of, for example, a laser beam based on the detecting of travelling speed of sheets and the like.

Abstract: A steel material is treated by laser beams, in such a manner that the laser beams and a gas jet are concurrently projected to a working point of the steel material to produce a plasma around the working point and another gas jet is ejected to the working point at an oblique angle to the projecting direction of the laser beams so as to press the plasma against the steel material surface, whereby the form of the plasma can be controlled by changing the oblique angle of the another gas jet ejection.

Abstract: A process of providing electromagnetic steel strips or sheet with excellent magnetic properties. The process comprises the steps of:irradiating with a laser-beam the surface of an electromagnetic steel sheet which has been finally annealed, thereby locally forming marks of the laser-beam irradiation on the surface of the steel, and;subsequently, subjecting the steel sheet to the formation of an insulating film on the sheet surface at a temperature of the sheet not exceeding 600.degree. C.

Abstract: In a method of producing a grain-oriented electromagnetic steel sheet, a laser beam is irradiated onto the steel sheet, which has been subjected to a final high temperature annealing in order to approximate the crystal orientation of the sheet in a (110), [001] orientation. Because of the laser beam irradiation, regions of high dislocation density are locally formed in the steel sheet and subdivide the magnetic domains, with the result that a low watt loss is achieved.