Abstract: A method for preparing 2-aminopyridine derivatives, which comprises substituting of fluorine for hydrazine moiety and reducing with hydrogen using 3-substituted-2,5,6-trifluoropyridine as a starting material, provides 2-aminopyridine derivatives having a purity over 98% under a mild reaction condition.

Abstract: The present invention relates to a parking brake lever of a vehicle.

Abstract: The present invention relates to a parking brake lever of a vehicle.

Abstract: The present invention relates to a door switch actuating structure of a refrigerator. The present invention is a door switch actuating structure for a refrigerator whose storage chamber is formed in a refrigerator main body and is opened and closed by a door supported on the refrigerator main body by means of a hinge unit. The door switch actuating structure comprises a door switch 50 which is provided at the hinge unit 40 and includes a button 52 protruding outwardly from a hinge cover 42; and a driving projection 60 which is provided at a position corresponding to the door switch 50 to selectively push the button 52 of the door switch 50 according to an operation for opening and closing the door 35. According to the present invention configured as above, there are advantages in that a configuration of the door switch 50 and a process for installing the door switch 50 are simplified.

Abstract: The invention pertains, in part, to a toner composition that is suitable for developing latent electrostatic images and being comprised of substantially spherical polyester particles with a volume average diameter in the range of 2-10 microns and which contain a wax component in the interior. The invention also pertains to a method of producing the toner composition, which is characterized by encapsulating a wax within resin particles by chemical milling a polyester resin and a wax in a polar solvent and in the further presence of an evaporable processing aid.

Abstract: Quinolone carboxylic acid derivatives of formula (I) and pharmaceutically acceptable salts thereof have potent antibacterial activity: 1

Abstract: A color toner composition includes dyed toner resin particles having a volume average diameter in the range of from about 2 microns to about 10 microns with a size distribution span value of less than 1.0. Preferred particles are characterized further by a micro-serrated surface exhibiting a roughness index value larger than about 1.2. The resin toner particles are prepared utilizing a dye-mediating co-solvent which facilitates transfer from a dispersion medium to the resin particles.

Abstract: A particulate composition suitable for making color toner includes resin particles optionally containing a charge control agent. The particles are characterized by a micro-serrated surface exhibiting a surface roughness index of at least about 1.2 and preferably higher. A process for making the particulate composition utilizes a vaporizable plasticizer.

Abstract: A color toner composition includes dyed toner resin particles having a volume average diameter in the range of from about 2 microns to about 10 microns with a size distribution span value of less than 1.0. Preferred particles are characterized further by a micro-serrated surface exhibiting a roughness index value larger than about 1.2. The resin toner particles are prepared utilizing a dye-mediating co-solvent which facilitates transfer from a dispersion medium to the resin particles.

Abstract: A particulate composition suitable for making color toner includes resin particles optionally containing a charge control agent. The particles are characterized by a micro-serrated surface exhibiting a surface roughness index of at least about 1.2 and preferably higher. A process for making the particulate composition utilizes a vaporizable plasticizer.

Abstract: A quinolizine carboxylic acid derivative of formula (I) or a pharmaceutically acceptable salt thereof: wherein R1 and R2 have the same meanings the as defined in the specification.

Abstract: The present invention relates to a sealing glass composition, which is able to seal a panel and funnel of a color TV at low temperature for a short time by adding Garnet(Fe.sub.3 Al.sub.2 Si.sub.3 O.sub.12) as a nucleating agent and filler component to control the thermal expansion coefficient.

Abstract: The present invention relates to optical isomers of quinoline compounds of Formula (IA) or Formula (IA'), their pharmaceutically acceptable salts and their intermediates: ##STR1## In the above formulae, A represent nitrogen or ##STR2## in which Y represents hydrogen, halogen such as fluorine or chlorine, lower alkyl or lower alkoxy such as methoxy, or together with R.sub.1 forms --CH.sub.2 CH.sub.2 CH.sub.2 --, CH.sub.2 CH.sub.2 CH(CH.sub.3)--, --OCH.sub.2 CH.sub.2 --, --OCH.sub.2 CH(CH.sub.3)--, --SCH.sub.2 CH.sub.2 -- or --SCH.sub.2 CH(CH.sub.3)--; R.sub.1 is as defined above or represents straight chain or cyclic lower alkyl group having 1 to 3 carbon atoms, a straight chain or cyclic lower alkyl group having 1 to 3 carbon atoms which is substituted with a halogen atom, a phenyl group or a phenyl group substituted with one or two halogen atoms, such as ethyl, cyclopropyl or 2,4-difluorophenyl; R.sub.

Abstract: The present invention relates to quinoline derivatives substituted in the 7-position by a trans-2,8-diazabicyclo?4.3.0!nonan-8-yl group having a broad antibacterial spectrum and to processes for preparing the same.

Abstract: The glass panel and funnel of a color TV picture tube are sealed to one another at 420.degree. C. within 20 minutes, using a composition which includes:(a) 93-99.8 weight percent PbO--B.sub.2 O.sub.3 --ZnO devitrifiable glass powder made of:74-82 weight percent PbO,7-10 weight percent B.sub.2 O.sub.3,8-12 weight percent ZnO,1-4 weight percent SiO.sub.2,0.05-0.5 weight percent MgO,0.1-0.5 weight percent BaO, and0.1-0.5 weight percent F;(b) 0.1-4.0 weight percent synthetic zircon having a specific surface area of 1.0-2.0 m.sup.2 /g, as a nucleating agent; and(c) 0.1-3.0 weight percent corderite, as a filler.

Abstract: The present invention relates to optical isomers of quinoline compounds of Formula (IA) or Formula (IA'), their pharmaceutically acceptable salts and their intermediates: ##STR1## In the above formulae, A represent nitrogen or ##STR2## in which Y represents hydrogen, halogen such as fluorine or chlorine, lower alkyl or lower alkoxy such as methoxy, or together with R.sub.1 forms --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH(CH.sub.3)--, --OCH.sub.2 CH.sub.2 --, --OCH.sub.2 CH(CH.sub.3)--, --SCH.sub.2 CH.sub.2 -- or --SCH.sub.2 CH(CH.sub.3)--;R.sub.1 is as defined above or represents straight chain or cyclic lower alkyl group having 1 to 3 carbon atoms, a straight chain or cyclic lower alkyl group having 1 to 3 carbon atoms which is substituted with a halogen atom, a phenyl group or a phenyl group substituted with one or two halogen atoms, such as ethyl, cyclopropyl or 2,4-difluorophenyl;R.sup.

Abstract: There are sintered Bi.sub.2 Te.sub.3 -based thermoelectric materials containing Ag.sub.2 S, which prevent p- to n-type transition of Bi.sub.2 Te.sub.3 -based thermoelectric materials during polycrystalline sintering and have improved thermoelectric properties.