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| Number | Title | Issue Date |
| 7141693 | Process for producing β-oxonitrile compound or alkali metal salt thereof The present invention relates to a process for preparing a β-oxonitrile compound or an alkali metal salt thereof which comprises reacting a carboxylic ester represented by the formula (1): R1CO2R2 (1) ... | 11/28/2006 |
| 7121320 | Method for shaping semisolid metals A method of shaping a semisolid metal comprising pouring a molten aluminum or magnesium alloy which contains a crystal grain refiner and which is superheated to less than 50° C. above a liquidus temperature of aluminum or magnesium, directly into a vessel without u... | 10/17/2006 |
| 7019103 | Polyamic acid oligomer, polyimide oligomer, solution composition, and fiber-reinforced composite material A terminal-crosslinkable polyamic acid oligomer having 1) heat resistance indicated by Tg of 300° C. or more and a pyrolysis temperature of 500° C. or more, 2) toughness, and 3) capability of allowing an increase in concentration. The polyamic acid oligomer is obt... | 03/28/2006 |
| 7018190 | Resin multilayer molding method and multilayer molding device A resin multilayer molding method in which a skin material having a resin decorating layer on a surface and a core-material resin are integrally molded in a mold, comprising the steps of: presetting a relationship of a glass transition point (Tgs) of the resin decor... | 03/28/2006 |
| 6906039 | Process for preparation of erythromycin compounds The present invention is to provide a process for producing a 2′-O-acetyl-4″-O-formyl-8,9-anhydroerythromycin A 6,9-hemiketal compound 4, and it provide a process for producing an erythromycin compound which comprises reacting a formylating agent with a 2... | 06/14/2005 |
| 6900335 | Process for producing 5-fluorooxindole and for producing intermediates therefor The present invention discloses a process for preparing 5-fluorooxindole represented by the formula (3): which comprises (A) a first step of cyclizing 2-(5-fluoro-2-nitrophenyl)malonic acid diester represented by the f... | 05/31/2005 |
| 6881863 | Process for producing 2-halogenocycloalkanone oxime The present invention relates to a process for preparing 2-halogenocycloalkanone oxime which comprises subjecting a 2-halogenocycloalkenone oxime compound to reduction with hydrogen in the presence of a platinum-carried catalyst. ... | 04/19/2005 |
| 6867212 | 6-(1-fluoroethyl)-5-iodo-4-aminopyrimidine compounds process for preparation of the same and pest controllers for agricultural and horticultural use The present invention relates to a 6-(1-fluoroethyl)-5-iodo-4-aminopyrimidine compound represented by the following formula (1): wherein Ar represents a phenyl group, a naphthyl group, a thieny... | 03/15/2005 |
| 6780877 | Acid addition salt of optically active piperidine compound and process for preparing the same The present invention is to provide a benzenesulfonic acid salt and a benzoic acid salt of (S)-4-[4-[(4-chlorophenyl)(2-pyridyl)methoxy]piperidino]butanoic acid represented by the formula (I): wherein * represents an asy... | 08/24/2004 |
| 6769473 | Method of shaping semisolid metals A method and apparatus for the semisolid forming of alloys to enable shaped parts having a fine-grained, spherical thixotropic structure to be produced in a convenient, easy and inexpensive manner without relying upon the conventional mechanical or electromagnetic a... | 08/03/2004 |
| 6734181 | Pyrrolopyridazine compounds A pyrrolopyridazine compound having the formula (I) or a pharmaceutically acceptable salt thereof: wherein, R1 is a C2-C6 alkenyl group, a halogeno C2-C6 alkenyl gro... | 05/11/2004 |
| 6689895 | 4, 8-dodecadienedinitrile and process for its production The present invention relates to a novel compound 4,8-dodecadienedinitrile represented by the following formula (1): ##STR1## wherein ##STR2## means a cis or trans bond, and a process for preparing 4,8-dodecadienedinitrile which comprises reacting a ... | 02/10/2004 |
| 6649757 | Process for producing laurolactam from cyclododecanone Laurolactam having high quality is produced by reacting cyclododecanone with a hydroxylamine salt of a mineral acid, and converting the resultant cyclododecanoneoxime to laurolactam through the Beckmann rearrangement reaction, wherein a content of each of... | 11/18/2003 |
| 6608235 | Method of reducing epoxidized organic compound with hydrogen In reduction of an epoxy group-containing organic compound, for example, a C5 -C20 saturated or unsaturated epoxy cycloaliphatic compound, in the presence of a nickel catalyst, by bringing the compound into contact with hydrogen, the... | 08/19/2003 |
| 6603024 | Process for the preparation of 3,4-methylenedioxymandelic acid A process for preparing 3,4-methylenedioxymandelic acid by reacting 1,2-methylenedioxybenzene with glyoxylic acid in the presence of a strong acid and of at least one substance selected from the group consisting of an aprotic organic solvent and 100 to 12... | 08/05/2003 |
| 6570015 | Process for producing 2-substituted thiopyrimidine-4-carboxylate There is disclosed a process for producing a 2-substituted thiopyrimidine-4-carboxylate represented by the formula (3): ##STR1## wherein R2 represents a substituted or unsubstituted hydrocarbon group and R3 represents a hydrocarbon g... | 05/27/2003 |
| 6565962 | Polyimide porous film A polyimide porous film obtained by drying and imidizing a polyimide precursor porous film which is substantially homogeneous on both sides, the polyimide porous film having pores on both sides wherein the pores all satisfy the conditions: 1) the differen... | 05/20/2003 |
| 6555647 | Process for production of polyimide molded bodies and polyimide molded bodies A process for production of polyimide molded bodies which comprises a step in which a polyimide resin powder obtained by polymerization and imidation of p-phenylenediamine with 3,3',4,4'-biphenyltetracarboxylic acid, its ester or its dianhydride and 2,3,3... | 04/29/2003 |
| 6541073 | Zirconium oxide and zirconium oxide precursor and process for producing them A process for producing a zirconium oxide precursor comprising precipitating a zirconium oxide precursor from an alcoholic solution of a zirconium compound, and a process for producing zirconium oxide having infrared absorption peaks assigned to an S--O b... | 04/01/2003 |
| 6534622 | Process for production of polyimide powder, polyimide powder, polyimide powder molded bodies and process for their production A process for production of polyimide powder, which comprises reacting an aromatic diamine with a partial ester of a biphenyltetracarboxylic dianhydride, which is a partial ester of a biphenyltetracarboxylic dianhydride with a primary alcohol of 1-5 carbo... | 03/18/2003 |
| 6517755 | Resin multilayer molding method and mulitlayer molding device A resin multilayer molding method in which a skin material having a resin decorating layer on a surface and a core-material resin are integrally molded in a mold, comprising the steps of: presetting a relationship of a glass transition point (Tgs) of the ... | 02/11/2003 |
| 6515185 | Method of producing cyclododecanone and cyclododecanol Cyclododecanone and cyclododecanol are produced each in high yield by reacting a epoxycyclododecane compound with hydrogen in the presence of a solid catalyst containing (a) catalytic component including a platinum group metal, (b) a promoter component in... | 02/04/2003 |
| 6506869 | One-pack type epoxy resin composition and cured epoxy resin A one-pack type epoxy resin composition is desclosed. The composition comprises a low-viscosity epoxy resin and an acid anhydride hardener, and has a viscosity of 250 P or less at 25° C. The hardener is an imide oligomer comprising an imide unit and havi... | 01/14/2003 |
| 6491994 | Multi-layer fuel tube A multi-layer fuel tube comprising at least three thermoplastic resin layers, said at least three thermoplastic resin layers comprising (A) a layer of polyamide 11 resin and/or polyamide 12 resin, (B) layer of polyamide 6, and (C) a layer of polyamide con... | 12/10/2002 |
| 6479191 | Electrolyte having alkyne derivative and lithium secondary battery using the same An electrolyte for a lithium secondary battery comprising (i) a non-aqueous solvent, especially consists essentially of a high dielectric solvent and a low viscosity solvent, and (ii) an electrolyte salt, dissolved therein and (iii) an alkyne derivative o... | 11/12/2002 |
| 6464755 | Gas separation membrane and method for its use An asymmetric membrane is formed using a mixture of two or more different polymers including at least one type of polyimide. It is thereby possible to produce a gas separation membrane with low permeation resistance (a high permeation rate) for permeate g... | 10/15/2002 |
| 6460374 | Method of manufacturing glass-impregnated fiber-reinforced ceramic A glass-impregnated, fiber-reinforced ceramic comprises a ceramic matrix having open voids, inorganic fibers embedded in the ceramic matrix in a regular or irregular orientation, and a glass matrix filling up the open voids in the ceramic matrix. The glas... | 10/08/2002 |
| 6420575 | Refining treatment method of liquid reaction mixture obtained from epoxidation reaction of 1,5,9-cyclododecatriene After 1,5,9-cyclododecatriene is epoxidized with hydrogen peroxide in the presence of a catalyst containing a tungsten compound, a quaternary onium salt and a mineral acid, to obtain a liquid reaction mixture containing the resultant 1,2-epoxy-5,9-cyclodo... | 07/16/2002 |
| 6417404 | Process for continuously producing a cyclododecanone compound A cyclododecanone compound is continuously produced by feeding a liquid feed containing a corresponding epoxycyclododecane compound and LiBr and/or LiI into a frontmost reaction region of a plurality of reaction regions connected to each other in series; ... | 07/09/2002 |
| 6414169 | Method of producing an epoxycyclododecane compound An epoxycyclododecane compound is produced by a catalytic hydrogenation reaction of 1,2-epoxy-5,9-cyclododecadiene, using a specific platinum-containing catalyst having a long life, under a hydrogen gas pressure of 0.8 to 9 MPa, and with a high yield of t... | 07/02/2002 |
| 6413678 | Non-aqueous electrolyte and lithium secondary battery using the same A non-aqueous electrolyte comprising a non-aqueous solvent and a lithium salt dissolved therein, and a cyclic carbonate, linear carbonate, and vinylene carbonate having a chlorine content of 100 ppm or less, and a lithium secondary battery using the same.... | 07/02/2002 |
| 6395066 | Partially carbonized asymmetric hollow fiber separation membrane, process for its production, and gas separation method A partially carbonized asymmetric hollow fiber separation membrane which is a hollow fiber separation membrane having an asymmetric structure obtained by partial carbonization of an aromatic polyimide hollow fiber separation membrane with an asymmetric st... | 05/28/2002 |
| 6395992 | Three-dimensional wiring board and electric insulating member for wiring board A three-dimensional wiring board comprises a metal base having a roughed surface, a heat-bonding type of polyimide film without using adhesive, bonded to the roughed surface and serving as an electric insulating layer, and a copper foil for a conductive l... | 05/28/2002 |
| 6388140 | Method and producing cyclododecanone compound A cyclododecanone compound is produced in a high reaction rate, with a high conversion of the starting compound, and with a high selectivity to and a high yield of the target compound by isomerizing an epoxycyclododecane compound in the presence of a cata... | 05/14/2002 |
| 6348626 | Process for producing oxamide Oxamide is produced in a high purity by a process comprising (A) melting a starting material comprising 70 to 100 wt % of an oxalic acid diester of an aliphatic alcohol and 0 to 30 wt % of the same aliphatic alcohol as mentioned above, (B) feed-mixing an ... | 02/19/2002 |
| 6336997 | Process for refining heat-deteriorative compound, contained in multi-component liquid mixture, by distillation A heat-deteriorative compound contained in a liquid mixture is refined by a distillation procedure using a distillation column in which a vapor fraction and a liquid fraction containing the heat-deteriorative compound are generated from the liquid mixture... | 01/08/2002 |
| 6297345 | Polyamide having excellent stretching properties A polyamide with excellent stretching properties is disclosed, which comprises 50 to 99.8 mol % of a unit derived from a lactam and/or an aminocarboxylic acid, 0.1 to 25 mol % of a unit derived from a dicarboxylic acid, and 0.1 to 25 mol % of a unit deriv... | 10/02/2001 |
| 6294624 | Modified diene elastomer and its preparation A modified diene elastomer prepared by a process comprising the steps of polymerizing a diolefin compound containing a conjugated double bond in a liquid phase in the presence of a cobalt compound, an organic aluminum compound containing a halogen atom, a... | 09/25/2001 |
| 6270693 | Thermistor composition A thermistor composition that is in use within a range of room temperature to 400° C. has the general formula Mn2-a-b-c Zna Nib Fec+d Co1-d O4, wherein 0.1ࣘa | 08/07/2001 |
| 6198159 | Bonded wafer, process for producing same and substrate A bonded wafer in which silicon wafers and an amorphous heat fusion bonding polyimide are used, a process for producing the same, and a substrate which is prepared by variously processing the bonded wafer.... | 03/06/2001 |
