Abstract: A box member for refrigerate transportation for containing perishables therein and transporting thereby. A gas fed from a refrigerating unit flows from above to below through a gas flow path and gas flow holes of an insulating plate in the vicinity of a ceiling of the box member. A damper device for closing the gas flow path during defrosting is provided in the vicinity of an inlet of the gas flow path. An air shut-off curtain which is suspended from the ceiling and a protecting mechanism thereof are provided at the rear portion of the box member. A water tank is provided at the inside of a front corner post, and a level gauge for visually confirming the water level of the water tank and a water feed port to the water tank are provided at the outside of the front corner post. The level gauge is provided with a discharge valve and a protective net.

Abstract: An amide derivative represented by the following general formula (I) ##STR1## wherein one of X and Y represents a sulfur atom and the other represents a carbon atom, Z represents a nitrile or thioamide group, each of R.sup.1 and R.sup.2 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a halomethyl group or a phenyl group, and R.sup.

Abstract: A process for the preparation of an N-substituted unsaturated carboxylic acid amide represented by the following formula: ##STR1## wherein R.sup.1 means a hydrogen atom or methyl group Y denotes a methylene group, oxygen atom or methylimino group, m and n stand individually for an integer of 0 to 5, and m+n is an integer of 3 to 5. The process comprises reacting a specified .beta.-alkoxy-substituted carboxylate with a specified cyclic amine to form a .beta.-alkoxy-substituted carboxylic acid amide compound and then removing an alcohol from the carboxylic acid amide compound in the presence of a basic catalyst to form an unsaturated group.

Abstract: Disclosed is an aqueous dispersion comprising (i) a hydrophobic thermoplastic polymer, (ii) a water-insoluble thermoplastic polymer containing a carboxylic acid salt group bonded to the polymer chain at a concentration of 0.1 to 5 milliequivalents as --COO-- per gram of the polymer, (iii) water and, if necesssary, (iv) at least one member selected from the group consisting of anionic surface active agents, nonionic surface active agents, organic solvents and oils, said aqueous dispersion being apparently solid and having a water content of 0.5 to 3% by weight and an electric resistance lower than 10.sup.6 .OMEGA.-cm and also having such a property that when water is added to the dispersion, solids are uniformly dispersed as fine particles in the aqueous phase.

Abstract: Thermoplastic polyimide foams are provided which essentially consist of recurring units represented by the formula (I): ##STR1## wherein X is a bond, divalent hydrocarbon radical having from 1 to 10 carbon atoms etc. and R is an aliphatic radical having 2 or more carbon atoms, cycloaliphatic radical etc.The foams have an apparent density of from 0.02 to 0.2 g/cc, average cell diameter of 0.1 to 1 mm and a closed cell content of 50% or more.

Abstract: Disclosed in a fine-particle aggregate emulsion comprising aggregate particles formed from a copolymer (a) composed of an unsaturated carboxylic acid and a vinyl monomer copolymerizable therewith, and a foreign polymer (b) formed by polymerization of a vinyl monomer differing in composition from that used in copolymer (a), foreign polymer (b) being present in the form of particles having a diameter of 0.05 to 0.05 .mu., the aggregate particles having a diameter of 0.2 to 3.0 .mu..This fine-particle aggregate emulsion is useful in paints, paper coating and information recording paper.

Abstract: A method for preparing a perforated film, for use in the field of sanitary, food packaging and industrial materials, by thermally embossing an oriented polyolefin film with an embossing roll having a large number of protruding knobs and a pinch roll which presses the film against the knobs, and simultaneously taking up the resultant film at a rate not less than the processing speed of the embossing roll.

Abstract: The distinction of tissue plasminogen activator, especially, the separation of its single-chain species and double-chain species is effected by using the Erythrina trypsin inhibitor which occurs in seeds of a plant of the Erythrina species.

Abstract: A commercially advantageous process for producing m- or p-aminobenzylamine is provided, which is characterized by subjecting m- or p-nitrobenzaldehyde and ammonia to catalytic reduction in the presence of a reducing catalyst in an organic solvent; in the reduction, when nitrobenzaldehyde and ammonia are in advance made a mixed solution in an organic solvent, and this solution is added in divided manner, the yield being further improved.

Abstract: This invention relates to an optical recording medium characterized by high sensitivity, high stability, etc, and a process for making the optical recording medium. Specifically, the present invention provides an optical recording medium composed of a transparent substrate having prepits and/or pregrooves for system control signals and first and second recording layers formed thereon in order, the both layers having individually a specific reflectance, transmittance and absorbance. To the optical recording medium, a laser beam is irradiated on the transparent substrate side to record or read out information and, by detecting the variation of the amount of light as a sum of the reflected light from the boundary between the first recording layer and the substrate and the reflected light from the boundary between the second recording layer and the air, the system control signals are primarily obtained from the prepits and/or pregrooves.

Abstract: A blank material for use as a ceramic wiring substrate of this invention is prepared by laminating a copper foil onto a ceramic base formed from a boron nitride sintered body or the like via a bonding layer interposed therebetween, and incoporating an inorganic filler in at least the ceramic base-containing side of the bonding layer.A fine and high density circuit substrate can be easily formed from the ceramic wiring substrate blank material according to the present invention by a conventional etching method.

Abstract: (A) Water-absorbent coating compositions comprising (1) a nonaqueous dispersion of a resin, or a solution of a resin, and (2) a water-in-oil type emulsion of a water-swellable polymer with an average particle size not greater than 10 .mu.m; and a process for coating the same which uses a proper primer. (B) Water-absorbent coating compositions which comprise 100 parts by weight (on dry basis) of a resinous solution and 10 to 150 parts by weight (on solid basis) of a dehydrated water-in-oil type emulsion of a water-swellable polymer with an average particle size not greater than 10 .mu.m and which gives coated film with an elongation not lower than 30%.

Abstract: A soldering iron tip comprises a coating layer of amorphous metal satisfactory in wettability in molten solder formed on the leading end part thereof. A soldering iron tip may comprise a coating layer of amorphous metal low in wettability in molten solder formed on at least the leading end part thereof and a coating layer of material excellent in wettability in molten solder formed on the coating layer of amorphous metal on the leading end part.

Abstract: A coating composition for a cast-coated paper which principally comprises a pigment and an adhesive and in which the adhesive is composed of (A) a rubber latex having an average particle size of 0.1 to 0.3 micron and (B) a rubber latex or an acrylic emulsion having an average particle size of 0.5 to 1.5 micron and the sum of the solid content of the components (A) and (B) is in the range of 9 to 30 parts by weight per 100 parts by weight of the pigment is herein provided. The coating composition may further contain casein as a binder. In addition, inorganic compounds selected from NaCl, Na.sub.2 SO.sub.4, ZnO and MgO and organic acid salts selected from formates or acetates of Ca, Zn, Mg may be added to the coating composition as coagulants. The use of the aforesaid coating composition makes it possible to produce cast-coated paper having excellent permeability, gloss and surface strength at a high speed.

Abstract: The present invention has as its technical theme to provide a liquefactive and condensable method that enables the reaction step of forming NF.sub.3 to be operated safely and continuously and purifying method that eliminates O.sub.2, N.sub.2, etc. in NF.sub.3.The present invention is directed to a method wherein liquefaction and condensation of NF.sub.3 is carried out with an additive gas such as He, and Ne introduced in order to prevent H.sub.2 from mixing. The present invention is also directed to a purifying method wherein deeply cooled distillation of liquefied NF.sub.3 is carried out with one or more of He, He, and Ar introduced as a third component gas.According to the present invention, a safe long-term continuous operation has been made possible. Since O.sub.2, N.sub.2, etc. in NF.sub.3 can be eliminated efficiently, highly pure NF.sub.3 can be obtained.

Abstract: A heat-shrinkable polyolefin composite sheet obtained by laminating a heat-shrinkable foamed polyolefin sheet and a polyolefin-base film with a polyurethane-base adhesive is disclosed.

Abstract: Radiation detecting solid elements consisting of conductive polymers and radiation sensitive materials which are capable of generating radiation induced substances composing the dopant of the conductive polymers. The elements are monolayer sheets obtained by impregnating or compounding the conductive polymers, such as, polythiophene and polyselenophene, with radiation sensitive materials, such as, diphenyliodonium chloride and triphenylsulfonium hexafluoroarsenate(V). The elements are also laminated sheets consisting of conductive polymer films and radiation sensitive material containing films. As radiation exposure causes variation in electrical conductivity and absorption spectrum of the elements, radiation can be detected by the variation of these properties.

Abstract: A novel N-substituted imidazole or thioimidazole derivative and a pharmacologically acceptable acid addition salt thereof, which have a brain function-improving action, are disclosed. The derivative or salt is used as an effective ingredient of a brain function-improving medicine.

Abstract: A packaging structure composed of a composite synthetic resin sheet having a depressed portion formed therein for holding an article and a metal foil bonded to the sheet, said composite sheet being a three-layer sheet composed of an interlayer of high-density polyethylene and outside layers of a propylene polymer bonded to both surfaces of the interlayer, the interlayer having a thickness of 120 to 800 micrometers, each of the outside layers having a thickness of 15 to 80 micrometers, and thickness of the interlayer being at least 2.5 times the total thickness of both outside layers; a process for production thereof; and a process for producing a composite (synthetic) resin sheet suitable as a material for the aforesaid packaging structure.

Abstract: A process for the purification of N-cyano-N'-methyl-N"-[2-{(5-methyl-1H-imidazol-4-yl)methylthio}-ethyl]guan idine, which comprises bringing a crude product of N-cyano-N'-methyl-N"-[2-{(5-methyl-1H-imidazol-4-yl)-methylthio}ethyl]guan idine into contact with activated carbon in water in the presence of an organic acid.