Abstract: A liquid injection device, comprising:a pair of a rotor and a stator relatively rotatable in a face-contacting relationship under a liquid-tight state;a plurality of small openings penetrating through the rotor or stator and communicating to a plurality of liquid systems; anda plurality of bridging grooves or openings provided on the contacting surface of the rotor or stator to communicate two or more of the small openings so as to form a liquid flowing path. The rotor can be rotated to a predetermined angle in a normal or reverse direction with respect to the stator so as to communicate a desired number of small openings or cut off the communication between a desired number of small openings by the relative shift of the bridging grooves with respect to the small openings.

Abstract: An improved process for preparing a bis [.beta.-(N,N-dimethylamino)ethyl]ether by reacting a bismethohalide of bis [.beta.-(N,N-dimethylamino)ethyl]ether represented by the following general formula: ##STR1## (wherein X denotes a halogen atom), with an aliphatic amine having a boiling point of not lower than 220.degree. C. at atmospheric pressure and having a primary amino group in the molecule thereof. The process comprises the following two steps (a) and (b): (a) a step of distilling out water at a temperature of not more than 130.degree. C. under reduced pressure from a mixture of said bismethohalide aqueous solution and said aliphatic amine to provide a concentration of said bismethohalide to water of not less than 85% by weight, and (b) a step of reacting said bismethohalide and amine in a solid-liquid phase at a temperature of not lower than 140.degree. C.

Abstract: An aqueous colored polymer is provided, which comprises (a) a homopolymer of an ethylenically unsaturated sulfonic acid or its salt or (b) a copolymer of an ethylenically unsaturated sulfonic acid or its salt with other ethylenically unsaturated monomer, said homopolymer or copolymer being dyed with a basic dye and having a lowest film-forming temperature of not higher than 35.degree. C. The aqueous colored polymer is prepared by polymerizing an ethylenically unsaturated sulfonic acid or its salt, or its mixture with other ethylenically unsaturated monomer by an aqueous solution or emulsion polymerization procedure at a temperature of not higher than 100.degree. C. in a specified amount of water and then adding a basic dye to the resulting polymer solution or emulsion, or carrying out this solution or emulsion polymerization in the presence of a basic dye. The aqueous polymer is useful as an aqueous ink such as an ink for the ink jet recording.

Abstract: Process or producing caustic alkalis or alkali hydroxides by electrolysis, employing a double electrode-type electrolysis tank in which a cation exchange membrane is provided to divide the inside of the tank into cathode and anode compartments, supplying to the anode compartment an alkali chloride, supplying water or a dilute solution of an alkali hydroxide into the cathode compartment, and taking away the alkali hydroxide and the hydrogen gas produced by electrolysis, in a mixed state of gas and liquid from the cathode compartment. The electrolysis tank comprises a number of finger-anodes extending from one of the walls of the tank and a number of finger-like hollow cathodes extending from the other wall of the tank, into which the finger-anodes project to form a gap therebetween, and a cation exchange membrane extending through the gap to divide the inside of the tank into cathode and anode compartments.

Abstract: A process for the preparation of chlorinated polyvinyl aromatic compound is described, comprising the steps of: (1) in an aromatic organic solvent, forming a solution of an aromatic compound represented by formula (I): ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is selected from hydrogen and an alkyl groups containing from 1 to 6 carbon atoms, and R.sup.4 and R.sup.5, or R.sup.5 and R.sup.6 can together form a ring by ##STR2## wherein each of R.sup.7, R.sup.8, R.sup.9, and R.sup.10 is selected from hydrogen and an alkyl group containing from 1 to 6 carbon atoms, and n has an average value of from 50 to 30,000; and (2) subjecting the solution to electrolysis reaction in the pressure of an aqueous solution containing chloride ions.

Abstract: An antifungal composition comprising an effective amount of carbamate derivative having the formula (I): ##STR1## where X is 2-naphthyl, 5-indanyl, 5,6,7,8-tetrahydro-2-naphthyl, 1,4-methano-1,2,3,4-tetrahydro-6-naphthyl, 1,4-ethano-1,2,3,4-tetrahydro-6-naphthyl, 2-quinolyl, or a phenyl group having one or two of the same or different substituents selected from the group of halogen atom, lower alkyl, lower alkenyl, lower alkoxy, lower alkenyloxy, halogenated lower alkyl, lower alkylthio, lower alkylsulfonyl, lower alkylamino, nitro, and methylenedioxy;Y is an oxygen atom or a sulfur atom;Z is lower alkyl group;W is pyridyl group having one or two of the same substituents selected from the group of lower alkyl, lower alkoxy, lower alkenyloxy, and lower alkylamino.

Abstract: 2-Alkylaminopyridine derivatives represented by the general formula ##STR1## wherein R denotes a lower alkyl group and Y denotes a halogen atom, and a process for producing the same. These compounds are useful as intermediates in medicines and agricultural chemicals. The final products prepared from the intermediates of the invention are especially useful as herbicides for use in paddy fields and farmlands.

Abstract: The disclosed catalyst for polyurethane comprises an organic carboxylic acid salt of a tertiary amine compound and 1-methyl-4-(2-dimethylaminoethyl)piperazine. The tertiary amine compound is selected from the group of triethylenediamine, bis(2-dimethylaminoethyl)ether and N,N,N',N",N"-pentamethyldiethylenetriamine and the organic carboxylic acid is selected from the organic carboxylic acids having 1-20 carbon atoms.

Abstract: A zeolite agglomerated article is provided, which is formed from a zeolite composition having incorporated therein at least one additive selected from alkaline earth metal oxides and hydroxides, alkaline earth metal aluminates and silicates and double salts containing an alkaline earth metal chloride. The zeolite agglomerated article is stable against a hydrothermal reaction.

Abstract: Propionic acid derivatives represented by the formula (I) ##STR1## wherein X indicates an oxygen atom or a sulfur atom, Y indicates a hydrogen atom or a halogen atom, R.sub.1 and R.sub.2 are the same or different group, indicating an alkyl group, alkenyl group, alkynyl group, cycloalkyl group, lower alkoxy group, lower alkoxyalkyl group, phenyl group, respectively, or R.sub.1 and R.sub.2 may form a heterocyclic group together with a nitrogen atom bonding to said R.sub.1 and R.sub.2, and herbicidal compositions employing them.

Abstract: A process for producing an .alpha.-halogeno-.beta.-phenylpropionic acid represented by the general formula: ##STR1## where X is a halogen atom, which comprises hydrolyzing under heating a halogen-containing ethylbenzene derivative represented by the general formula: ##STR2## where W is a cyano group, an amidocarbonyl group or a lower alkoxycarbonyl group, and X is as defined above, in an aqueous mineral acid solution under vigorous stirring.

Abstract: Disclosed is a catalytic composition comprising a substance having the general formula: ##STR1## where R.sub.1 is an alkyl group having 1 to 3 C atoms and R.sub.2 is a group selected from --H, --CH.sub.3 and CH.sub.2 CH.sub.3.The catalytic composition is odorless and excellent in the urethane forming reaction in production of polyurethane.

Abstract: .alpha.-L-aspartylphenylalanine lower alkyl esters are prepared by a process wherein fumaric acid, ammonia and a lower alkyl ester of L-phenylalanine are contacted with a culture or treated culture of a microorganism belonging to the genus Pseudomonas, and being capable of producing a .alpha.-L-aspartyl-L-phenylalanine lower alkyl ester from fumaric acid, ammonia and a lower alkyl ester of L-phenylalanine.

Abstract: A faujasite type zeolite having a high SiO.sub.2 /Al.sub.2 O.sub.3 ratio is prepared by simultaneously and continuously supplying an aqueous solution of an alkali metal silicate and an aqueous solution of an aluminum-containing compound whereby the alkali metal silicate is continuously reacted with the aluminum-containing compound to prepare a homogeneous phase compound of a granular amorphous aluminosilicate containing aluminum in an amount of 10 to 16% by weight, as Al.sub.2 O.sub.3 and based on the anhydride; and then, crystallizing the granular homogeneous phase amorphous aluminosilicate in an aqueous alkali metal hydroxide solution having a concentration of 4 to 10% by weight.

Abstract: A zirconia type sintered body consisting essentially of 50 to 98% by weight of zirconia (ZrO.sub.2) containing 1.5 to 5 mole % of yttria (Y.sub.2 O.sub.3) and 50 to 2% by weight of alumina (Al.sub.2 O.sub.3), spinal (MgAl.sub.2 O.sub.4) or mullite (3Al.sub.2 O.sub.3.2SiO.sub.2), and having a three-point bending strength of at least 1700 MPa is provided. This sintered body is prepared by a process wherein a powdery composition consisting essentially of 50 to 98% by weight of (a1) a powder of zirconia containing 1.5 to 5 mole % of yttria or (a2) a mixture comprising 1.5 to 5 mole % of a yttria powder and 95 to 98.5 mole % of a zirconia powder and 2 to 50% by weight of (b) a powder of an alumina type oxide selected from alumina, an alumina-magnesia type oxide, an alumina-silica type oxide, a mixture of alumina and magnesia and a mixture of alumina and silica is subjected to a hot isotactic pressing treatment under a pressure of at lesast 50 MPa at temperature of 1300.degree. C. to 1700.degree. C.

Abstract: Ethyleneamines are efficiently recovered from an aqueous solution thereof by extracting them from the aqueous solution into an organic phase with an extractant selected from carbonyl group-containing organic solvents, benzyl alcohol, carboxylic acids and salts thereof, alkylphosphoric acids and salts thereof, and mixed solvents containing at least one of these extractants. The ethyleneamines in the organic phase is recovered preferably from the organic phase to the aqueous phase by incorporating an acid therein, followed by phase separation.

Abstract: A process for preparing a perfluorinated or polyfluorinated aliphatic carboxylic acids wherein a perfluorinated or polyfluorinated aliphatic halide of the formula: R.sub.f X where R.sub.f is a perfluorinated or polyfluorinated aliphatic group and X is a halogen atom is reacted with carbon dioxide in the presence of metal under the irradiation of ultrasound and the reaction product is hydrolyzed to form a perfluorinated or polyfluorinated aliphatic carboxylic acid of the formula: R.sub.f COOH where R.sub.f is the same as defined above.

Abstract: A chloroprene polymer is produced by aqueous emulsion polymerization in the presence of a cyclic polysulfide compound which is employed in a quantity equal to at least 0.1% by weight of the weight of the chloroprene, followed by deflocculating the polymer.

Abstract: A fluorocarbon polymer comprising a perfluorocarbon main chain and a pendant chain attached to the main chain, characterized in that the pendant chain has a quaternary ammonium type terminal group.

Abstract: A zeolite similar to ZSM-5, having lattice spacings (d-values), shown in Table 1, of the X-ray powder diffraction pattern, and a ferrierite zeolite are prepared by crystallizing a homogeneous phase compound of a granular amorphous aluminosilicate in water or in an aqueous solution of an alkali metal hydroxide and/or an alkali metal silicate.