Abstract: A thermosensitive recording material having a satisfactory high speed recording performance and whiteness and capable of forming colored images thereon having a high storage persistency for a long time, comprises a thermosensitive colored-image-forming layer formed on a sheet substrate and comprising a colorless dye precursor, a color-developing agent comprising benzyl p-hydroxybenzoate, a colored image-stabilizing agent comprising a member selected from aromatic aziridine compounds with one aziridine group and at least one aromatic cyclic group, and aromatic, aliphatic and cycloaliphatic aziridine compounds with two or more aziridine groups, and a binder.

Abstract: A thermosensitive recording material capable of recording thereon colored images having high resistances to oily substances, plasticizers, moisture, and heat and an excellent storage persistency over a long time, comprises a thermosensitive colored image-forming layer formed on a sheet substrate and comprising a colorless dye precursor, a color developing agent, and a binder, the color developing agent comprising at least one compound of the formula (I): ##STR1## wherein X is an O or S atom, R is an unsubstituted aromatic group or an aromatic group substituted by a lower alkyl or halogen atom; A represents a multivalent group, and n is an integer of 2 or more.

Abstract: A thermosensitive recording material capable of recording thereon colored images having high resistances to oily substances, plasticizers, moisture, and heat and an excellent storage persistency over a long time, comprises a thermosensitive colored image-forming layer formed on a sheet substrate and comprising a colorless dye precursor, a color developing agent, and a binder, the color developing agent comprising at least one compound of the formula (I): ##STR1## wherein X is an O or S atom, R.sup.1 is an unsaturated aromatic group or a substituted phenyl group having a lower alkyl or halogen atom and R.sup.2 and R.sup.3 are respectively a hydrogen atom, alkyl, aralkyl, substituted alkyl having an aryloxy, unsubstituted aromatic group, or substituted aromatic group having at least one substituent selected from alkyl, aryl, aralkyl, alkyloxy, alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl, and arylsulfonyl groups, and halogen atoms.

Abstract: A cable grade water proofing agent made of a cross-linked polymer produced by polymerizing a monomer mixture comprising at least one (meth)acrylic compound selected from the group consisting of (meth)acrylic acids and (meth)acrylic salts and a (meth)acrylamide in a molar ratio of said (meth)acrylic compound to said (meth)acrylamide in the range of from 1:9 to 5:5, said cross-linked polymer exhibiting a speed of absorption of not more than 8 minutes as expressed by the time required for the absorption of artificial seawater to reach 90% of the maximum, a capacity for absorption of said artificial seawater of not less than 8 times the own weight, and a gel viscosity in the range of from 0.6.times.10.sup.5 to 2.5.times.10.sup.5 dynes.multidot.s/cm.sup.3, and a composite waterproofing material carried on a substrate such as yarns and tape.

Abstract: Disclosed herein are a water-absorbing resin composition composed of a water-absorbing resin and a metallophthalocyanine, and a method for utilizing the water-absorbing resin composition as a deodorant in the presence of water.

Abstract: A heat-sensitive recording material with an excellent recording sensitivity and capable of recording thereon high quality images at a high recording speed, comprising a heat-sensitive color-forming layer formed on a substrate sheet and comprising a colorless dye precursor, a color-developing agent, a binder and a sensitizing agent consisting essentially of 1,2-diphenoxybenzene.

Abstract: A heat-sensitive recording material with an excellent recording sensitivity, heat stability and resistance to the whitening phenomenon, comprising a heat-sensitive color developing layer formed on a substrate sheet and containing, in addition to a colorless dye precursor, color developing agent and binder, a heat-fusible sensitizing agent consisting essentially of at least one member selected from 1,4-bis(p-tolyloxy)benzene, 1,4-bis(3', 4'-dimethylphenyloxy)benzene and 1,4-bis(3',5'-dimethylphenyloxy)benzene, in an amount of 10% to 1,000% based on the weight of the color developing agent.

Abstract: A method for the production of p-methoxybenzaldehyde by the vapor-phase catalytic oxidation of p-methoxytoluene, which method comprises cooling and condensing a mixed gas formed by said reaction of oxidation thereby preparing a solution containing p-methoxybenzaldehyde, treating said solution in the presence of at least one alkali selected from the group consisting of an alkali metal compound and an ammonium compound soluble in water and alkaline in nature, and subsequently distilling the resultant treated solution.

Abstract: A catalyst for the vapor-phase oxidation of an unsaturated hydrocarbon, alcohol, saturated aliphatic aldehyde or unsaturated aliphatic aldehyde having 4 carbon atoms, said catalyst comprising a molybdovanadophosphoric acid having X-ray diffraction lines (Cu-K.sub..alpha. radiation) at 2.theta.=about 26.2.degree., about 10.5.degree., about 21.3.degree. and about 30.3.degree. and a crystal structure approximating that of its salt, and said catalyst having the composition represented by the general formulaP.sub.a Mo.sub.b V.sub.c X.sub.d Y.sub.e O.sub.

Abstract: A driving process for enlarging a tunnel wherein a primary shield machine is driven along an ordinary diametrical tunnel to a predetermined region to be enlarged. An enlarged starting base is formed in the rear of the primary shield machine. An enlarging shield machine is assembled in the enlarged base. Thereafter, the primary shield machine and the enlarging shield machine are both driven forward along the predetermined region of enlargement to construct an enlarged tunnel.

Abstract: A pressure-sensitive record color-developing sheet capable of developing thereon clear color images having an excellent light fastness, comprises a substrate layer and a color-developing layer containing an acid color-developing agent, for example, activated clay or aluminum silicate, a binder and a color development-promoting, color fading-preventing agent consisting of a thiourea compound and a zinc compound selected from zinc oxide, zinc hydroxide, and mixtures thereof.

Abstract: A catalyst for the vapor-phase oxidation of an unsaturated hydrocarbon, alcohol, saturated aliphatic aldehyde or unsaturated aliphatic aldehyde having 4 carbon atoms, said catalyst comprising a molybdovanadophosphoric acid having X-ray diffraction lines (Cu-K.sub..alpha. radiation) at 2.theta.=about 26.2.degree., about 10.5.degree., about 21.3.degree. and about 30.3.degree. and a crystal structure approximating that of its salt, and said catalyst having the composition represented by the general formulaP.sub.a Mo.sub.b V.sub.c X.sub.d Y.sub.e O.sub.

Abstract: An apparatus for detecting the amount of toner in the supply hopper of an electrophotographic copying machine includes a transmitting element in the hopper for generating an ultrasonic acoustic wave and a receiving element in the hopper in operative relation to the transmitting element for receiving the ultrasonic acoustic wave reflected from toner in the hopper, the magnitude of the reflected wave being representative of the level of toner contained in the hopper.

Abstract: An apparatus for measuring water in cow's milk. Sample milk is heated and dryed by microwaves in an oven made of a microwave waveguide. Weights of the sample before and after the drying of the sample are measured by an automatic balance. Weight signals obtained from the balance are memorized in a memory circuit to calculate the solid material ratio or water ratio of the sample milk. A water dummy is employed for stabilizing oven temperature. Support means for one or more additional sample plates may be arranged in the waveguide for preliminary drying of one or more filter paper in the additional sample plate to shorten the subsequent heating time of the sample milk.

Abstract: A feed material is introduced into a pressure-kneading portion of a kneader with a slightly insufficient water content, wherein the remaining water is added and the material is kneaded to be delivered from the kneader as having a predetermined water content, and concurrently the water content of the kneaded material being delivered is continuously measured near the exit of said kneader and the amount of water to be added to the pressure-kneading portion is controlled according to the measured water content, whereby the water content in the kneaded material is maintained constant.