Abstract: An apparatus for the purpose of piling up a prescribed number of plate-shaped articles in trim order, said apparatus comprising chain conveyers which are installed below a receiving member for temporarily supporting the plate-shaped articles and accommodated in a frame, chutes which are disposed on both sides of said conveyers, and fore adjusting plates and rear adjusting plates which are disposed to be perpendicular to the direction of progress of the chain conveyer and capable of reciprocating between a vertical position and an outwardly inclined position relative to said direction of progress of the chain conveyer, whereby said piling-up work can be performed by driving said adjusting plates.

Abstract: An aqueous urea solution is concentrated to a substantially water-free molten urea by conducting successively a first step of concentrating said aqueous urea solution under the conditions forming a urea slurry and a second step of concentrating said urea slurry under conditions forming a substantially water-free molten urea free from crystalline urea.

Abstract: A process is disclosed for the preparation of reactive copolymers by bulk- or solution polymerizing a material composed of a monomeric mixture consisting of at least one glycidyl group-containing monomer and at least one monomer copolymerizable therewith and a chain transfer agent in a stirred-tank reactor, and withdrawing from the reactor a liquid which contains the reactive copolymer in an amount equal to the feed. The process is improved by removing from the reaction liquid together with the reactive copolymer the adduct formed in the liquid by the reaction of the chain transfer agent with the monomers. The residue is then liquefied and directly recycled to the reactor.

Abstract: A seat lock device comprising a lock units provided on the side of a seat and at a point spaced from the pivotal shaft of the back rest and a plurality of strikers erected on an immovable member for engagement with the lock unit, wherein when any of the strikers is moved in engagement with any of elongate grooves cut out in a rotatable actuating unit pivotally supported by the lock unit and the actuating unit is rotated by a predetermined angle, a latch is inserted into any of the elongate grooves to lock said actuating unit, consequently said back rest, on the striker, and where a connector is pulled, the back rest is unlocked and can be shifted to another striker to be locked thereby.

Abstract: Diphenols, alkyl ethers and aryl ethers of diphenols are produced by subjecting phenols, alkyl ethers and aryl ethers of phenols to oxidation with an organic per-acid in the presence of at least one member selected from the group consisting of acetyl acetone and acetonyl acetone as the catalyst.

Abstract: A glass fiber-reinforced polyester resin composition consisting of: (A) about 55 to about 95% by weight, based on the total weight of (A) and (B), of poly(tetramethylene terephthalate) resin and a glycol component unit, (B) about 45 to about 5% by weight, based on the total weight of (A) and (B), of a copolyester resin composed of a dicarboxylic acid component unit and a unit of a mixed glycol consisting of a specific ether glycol, and a monoalkylene glycol, the amount X in mole % of the ether glycol being expressed by the formula 12/n.ltoreq.X.ltoreq.150/n wherein n is an integer of 2 to 6, and the amount of the monoalkylene glycol being (100 - X) mole %, (C) about 10 to about 50 parts by weight, per 100 parts by weight of the sum of (A) and (B), of glass fibers, and (D) up to about 50 parts by weight, per 100 parts by weight of the sum of (A) and (B), of an additive.

Abstract: Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X stands for Cl, F, CH.sub.3 or CF.sub.3, n is an integer of 1-3 with the proviso that X may be the same or different when n is 2 or 3 but X.sub.n should not be 2,4-dichloro substituent,Are valuable as herbicides possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops. These nitrodiphenyl ether derivatives are prepared by hydroxyethylation of a compound of the above general formula except that a halogen atom is present in place of nitro group and subsequent halogenation of the .beta.-hydroxyethoxy group of the resulting compound.

Abstract: An electrolytic cell of high capacity and circulation for the electrolytic refining and recovery of copper at a high current density is described, comprising a pair of supply ports and a single discharge port for supply and discharge of an electrolyte. The electrolyte which is first divided into two portions and supplied from the supply ports is circulated through individual zones of the internal space of the cell uniformly along the longest path at a low linear velocity and is finally discharged from a common discharge port.

Abstract: A process for preparing alcohols which comprises hydrating lower olefins in liquid phase with an aqueous 0.1 to 20.0 wt % phosphoric acid solution containing 0.001 to 1.0 wt % of an oxyacid of chromium or a salt thereof to give corresponding alcohols.

Abstract: A method of manufacturing sulfuric acid free of impurities such as mercury by the contact process, which comprises the steps: scrubbing the roasting gas coming out of a mist Cottrell with sulfuric acid having a concentration of 30 to 99% and a temperature of more than 20.degree. C within one or two mercury absorption towers (the drying tower per se may suffice) or further within an additional mercury absorption tower disposed on the outlet side of the main blower; and adding a reagent such as a sulfide, a hydrosulfide compound of alkali metal or alkaline earth metal, hydrogen sulfide, selenium compound, sulfur, etc.

Abstract: Process for the production of acrylamide or methacrylamide wherein acrylonitrile or methacrylonitrile is reacted with water and/or water donor in the presence of a catalyst consisting essentially of Raney copper, Ullman copper, reduced copper catalyst, copper with a carrier, silver, gold, cobalt, palladium and/or platinum.

Abstract: A process for preparing 1-aminoanthraquinone having high purity, which comprises either1. hydrogenating 1-nitroanthraquinone in an aqueous medium in the presence of a base using a hydrogenating catalyst, and then oxidizing the hydrogenation product, or2. hydrogenating crude 1-nitroanthraquinone containing dinitroanthraquinones as impurities or crude 1-aminoanthraquinone containing diaminoanthraquinones as impurities in an aqueous medium in the presence of a base using a hydrogenating catalyst, stopping the hydrogenation at a time when the 1-nitroanthraquinone or 1-aminoanthraquinone has been substantially reduced to 1-aminoanthrahydroquinone but the dinitroanthraquinones or diaminoanthraquinones remain substantially unreduced to diaminoanthrahydroquinones, removing water-insoluble materials from the reaction mixture, and then oxidizing the remaining water-soluble residue.

Abstract: Chemically stable p-isopropenyl phenol is produced in the form of a solution by contacting p-isopropenyl phenol, in the form of a gas or a liquid obtained immediately after condensation of said gas, with a polar solvent such as an alcohol, an ester, or an acid amide. The resultant solution of p-isopropenyl phenol can be used as the starting material for subsequent reaction to obtain useful compounds such as hydroquinone. Alternatively, p-isopropenyl phenol may be isolated in crystalline form by adding to the solution a poor solvent for the phenol such as water, or by cooling the solution.

Abstract: Urea synthesis effluent obtained by reacting carbon dioxide with ammonia is subjected to a plurality of decomposition stages, e.g., three stages, to decompose and recover the unreacted ammonium carbamate with stepwise reduction of pressure, and the off-gas is absorbed in an absorbent in each stage and is recovered. The aqueous urea solution from the final decomposition stage is concentrated, water vapor generated upon said concentration is condensed, and the condensate containing small amounts of ammonia and carbon dioxide is stripped with steam recovered from the high pressure absorption zone. The steam discharged from the stripping step is introduced into the final decomposition stage to directly heat the urea synthesis effluent.

Abstract: The present invention is characterized by cutting and breaking up a hull of large ship in the floating situation on the sea so as to shorten the length of the hull, transporting the broken up objects to a product making workshop, and subdividing said objects further thereby breaking up into products. Said product making workshop is constructed so as to supply power etc. required for the breaking up process.A breaking up method according to the present invention does not require harbor facilities such as crane etc. so that it does not have any limitation with respect to the breaking up place and since it allows the product making operation from the broken up objects to be performed on the sea, the breaking-up process can be simplified.

Abstract: The electrodeposited metal plate peeling off machine according to the present invention comprises a hammering apparatus, a peeling off apparatus and a transfer means installed throughout the foregoing two apparatuses for the purpose of intermittently transferring a cathode plate composed of the electrodeposited metal plates and the base plate holding said electrodeposited metal plates thereon from the hammering apparatus to the peeling off apparatus, wherein the hammering apparatus consists of hammering means, accommodated in a sound insulating box of closed type construction employing sound insulating materials and the peeling off apparatus is equipped with nozzle pipe having a slit-like nozzle, respectively, which is directed to the upper edge of the electrodeposited metal plate and disposed practically parallel to said upper edge at an appropriate distance, blowers for continuously supplying low-pressure air to said nozzle pipes, and roller conveyers disposed below the peeling off means and composed of rol

Abstract: A method for separating and recovering hydroquinone which comprises distilling a by-product-containing acid-cleavage product, which is obtained by acid-cleavage of an oxidation product of para-diisopropyl benzene in a solvent, in the presence of an aromatic hydrocarbon, thereby removing low-boiling fractions including the solvent, bringing the resulting hydroquinone-containing distillation bottoms into contact with water, and crystallizing and separating hydroquinone; characterized in thatA. the distilling off of the low-boiling fractions is effected without the addition of water and in the absence of an azeotropic amount of water and also in the presence of an aromatic hydrocarbon containing 9 to 10 carbon atoms, andB. the contacting of the distillation bottoms with water is effected under conditions which do not induce crystallization of hydroquinone in the distillation bottoms.

Abstract: The present invention relates to a method of treatment on the surface of copperfoil mainly used for printed circuits. More particularly, it relates to a method of electrodeposition of a binary alloy consisting of zinc and tin as a barrier layer against copper migration into an adhesive substrate during subsequent heat press lamination, while a binary alloy on copperfoil is converted to ternary alloy defusing into copper by heat press lamination resulting in a layer of Cu-Zn-Sn, ternary alloy. This layer prevents spottings on the etched surfaces and provides high resistance to hydrochloric acid, and better adhesion than hitherto used alloys.

Abstract: A process for forming a polyolefin coating layer onto a surface of a metal which comprises coating an uncured epoxy resin layer onto the surface of a metal and melt-bonding a polyolefin modified with an unsaturated carboxylic acid or an anhydride thereof onto the uncured epoxy resin layer coated onto said metal surface. The coating layer has a high bonding strength and excellent water resistance, especially resistance against brine.

Abstract: A metallic tone powder coating composition of acrylic resin series which prises a polymer-capsulated metal powder composite material wherein a vinyl monomer is chemically combined with a powder of a metal such as aluminum and a copolymer having a glass transition temperature of at least 20.degree. C wherein the sum of an acrylic ester and a methacrylic ester is at least 30% by weight of the total monomer constituting the copolymer. This powder coating composition provides a coating film having excellent weather-resistance and beautiful appearance and is suited for use in electrostatic powder spraying.