Abstract: A magnetic recording medium comprising(a) a flexible substrate of a polymeric material,(b) a first magnetic layer of a ferromagnetic metal deposited on the substrate by an ionized cluster beam deposition method, and(c) a second magnetic layer of a ferromagnetic metal deposited on the first magnetic layer by a high-vacuum ion plating deposition method, and a process for producing a magnetic recording medium which comprisesimparting a kinetic energy in the range of 100 eV to 10 KeV to an ionized cluster composed of ferromagnetic metal atoms in a high vacuum corresponding to a pressure of 8.times.10.sup.-4 to 1.times.10.sup.-10 torr and impinging the resulting ionized cluster beam against a flexible substrate of a polymeric material to deposit a first magnetic layer of the ferromagnetic metal on the substrate, andimparting a kinetic energy in the range of 1 eV to 10 KeV to atom ions of a ferromagnetic metal by an ion plating method in a high vacuum corresponding to a pressure of 8.times.10.sup.-4 to 1.times.10.

Abstract: A composition for an interlayer film of a laminated safety glass, said composition comprising (A) a thermoplastic resin resulting from copolymerization of (1) vinyl chloride, (2) glycidyl methacrylate and (3) at least one monomer selected from the group consisting of ethylenic hydrocarbons, vinyl esters of fatty acids, acrylic esters and vinyl ethers, and (B) a plasticizer.

Abstract: A stop valve includes a main body which defines a fluid passage and a valve chamber. The stop valve further includes a spindle having one end connected to a handle and the other end inserted into said valve chamber, a valve seat positioned in said fluid passage and confronting said valve body, and a cap member positioned above said valve chamber. The outer end of the spindle is coupled rotatably to the valve body, while the rotation of the valve body is prevented by a rotation preventive means. A packing is interposed between the valve body and the valve chamber. The valve body is in sliding contact with said packing along the axial direction thereof during operation, upon rotation of the spindle about its axis.

Abstract: A core mold for bent pipes including a main body formed of a plurality of hollow cylindrical members connected to each other, the angle between adjacent hollow cylindrical members being fixable at any desired value. The main body may be mounted to a shaft through support members each of which consists of a main body fixed to the main body of the core mold and a shaft support member secured rotatably to the main body of the support member, the shaft support member being slidable along the shaft.

Abstract: A composition for an interlayer film of a laminated safety glass, said composition comprising (A) a thermoplastic resin resulting from copolymerization of (1) vinyl chloride, (2) glycidyl methacrylate and (3) at least one monomer selected from the group consisting of ethylenic hydrocarbons, vinyl esters of fatty acids, acrylic esters and vinyl ethers, and (B) a plasticizer.

Abstract: A magnetic recording medium comprising a non-magnetic substrate such as on polyethylene terephthalate film, and deposited on the surface of the substrate by a ionized cluster beam deposition method, at least one ferromagnetic material selected from the group consisting of cobalt, cobalt-containing alloys, mixtures of cobalt with other elements, and chromium dioxide; and a process for production thereof. The magnetic recording medium is characterized by having superior magnetic properties, especially superior coercive force, residual magnetic flux density and squareness ratio, and high mechanical strength.

Abstract: A synthetic resin valve in which a body is connected end-to-end in abutting relationship to a cylindrical body cap having a flange at one end and a seat at the other end by screwing the two together with a cap nut. The seat includes a ring-like element having a lesser diameter portion which is fitted into an annular groove adjacent to a front end portion of the body cap, and a greater diameter portion which engages the outer peripheral surface of the front end portion of the body cap, the front face of the larger diameter portion of the ring-like element preferably resting in the same plane as the front face of the body cap which abuts the body. The ring-like element is cut radially in one circumferential region so that it may be deformed around the body cap such that its smaller diameter region may be fitted into the annular groove, and has a rear wall for engaging the cap nut.

Abstract: Microbial cells are produced in great quantities and good yield, and economically by cultivating a bacterium belonging to species selected from the group consisting of Flavobacterium tosaensis, Pseudomonas wakayamaensis, Flavobacterium methanolicola, Corynebacterium yamanasiensis, in a culture medium containing methanol as a major carbon source. Methanol is abundantly available from the chemical industry. The resultant microbial cells have a high protein content and can be utilized as feed, food, medical and industrial materials.

Abstract: Apparatus and method for molding a reinforced plastic tubular body having a socket, and a mold for carrying out the method. The steps of the method areassembling a main mold body having a tubular section and a socket-molding member slidable axially along the periphery of the tubular section of the main body and fixable at a predetermined position to the tubular section of the main body to form a mold by fixing the socket-molding member at the predetermined position to the tubular section of the main body,forming a layer of a reinforced plastic molding material around the resulting mold and curing it, andpulling the main mold body and the socket-molding member axially from the cured plastic layer.

Abstract: An electric recording material comprising(A) a semiconductive resin layer comprising a resin matrix and a conductivity-imparting agent dispersed therein and having a surface resistance of more than 1 ohm to less than 10.sup.5 ohms,(B) a metal-containing resin layer comprising a resin matrix and 5 to 60% by volume of a metal powder dispersed therein and having a surface resistance of 10.sup.5 to 10.sup.16 ohms, said metal-containing layer being laminated to one surface of said semiconductive resin layer (A),(C) an electrically conductive covering layer having a surface resistance not exceeding 10.sup.

Abstract: A process for producing a safety laminate comprising at least two plates bonded to each other through an adhesive interlayer, which comprises(1) applying an adhesiveness-imparting agent being liquid at ambient temperature and substantially non-adhesive to said plates to at least one of (a) the surface of each of said plates and (b) each surface to be bonded to said surface (a) of a sheet-like adhesive material which is substantially non-adhesive, and only latently adhesive, to said plates, said adhesiveness-imparting agent being capable of developing the latent adhesiveness of said sheet-like adhesive material; and(2) sandwiching said sheet-like adhesive material as an interlayer between two of said plates to bond said plates through the interlayer of said sheet-like adhesive material having its adhesiveness developed; and a safety laminate produced by aforesaid process.

Abstract: A safety device for a gas burner comprises a first ignition nozzle 31 in a pilot burner 3, an inflammable gas guide tube 32 facing the first ignition nozzle, a second ignition nozzle 33 at the end of the guide tube oriented toward a main burner 2, a pressure sensing tube 6 coupled between the guide tube portion near the first ignition nozzle and one diaphragm chamber of a differential pressure sensing device 7, and an automatic valve 4 actuated by the pressure sensing device to close a main gas pipe 1. If the flame at the first ignition nozzle is extinguished the pressure near the beginning of the guide tube increases sharply, which actuates the pressure sensing device 7 to close the valve 4 and terminate combustion.

Abstract: A magnetic recording medium comprising a non-magnetic substrate such as polyethylene terephthalate film, and deposited on the surface of the substrate by an ionized cluster beam deposition method, at least one ferro-magnetic material selected from the group consisting of cobalt, cobalt-containing alloys, mixtures of cobalt with other elements, and chromium dioxide; and a process for production thereof. The magnetic recording medium is characterized by having superior magnetic properties, especially superior coercive force, residual magnetic flux density and squareness ratio, and high mechanical strength.

Abstract: A pipe joint of a reinforced resin having a structure in which the wall of at least a socket portion consists of an inside surface layer composed of a cured product of a reinforced resin molding material, an outside surface layer composed of a cured product of a reinforced resin molding material, and an interlayer between these layers composed of a cured product of a resin mortar.

Abstract: A structural material formed of a fiber and honeycomb reinforced foamed resin is disclosed, which is constructed by arranging a honeycomb material, the voids of which contain a foamable thermosetting resinous liquid, between two fibrous layers and heating the assembly to foam the resinous liquid and simultaneously cover and impregnate the fibrous layers whereby the fibrous layers and the honeycomb material are completely impregnated with and encased in the foamed resin.

Abstract: Zinc oxide is used during manufacture of silane-modified ethylene-type resin so that the resulting material changes little with the passage of time.

Abstract: An electric recording material comprising(A) a semiconductive resin layer comprising a resin matrix and a conductivity-imparting agent dispersed therein and having a surface resistance of more than 1 ohm to less than 10.sup.5 ohms,(B) a metal-containing resin layer comprising a resin matrix and 5 to 60% by volume of a metal powder dispersed therein and having a surface resistance of 10.sup.5 to 10.sup.16 ohms, said metal-containing layer being laminated to one surface of said semiconductive resin layer (A),(C) an electrically conductive covering layer having a surface resistance not exceeding 10.sup.

Abstract: In a process for purifying an ester with little contamination by catalytic metal components in a high yield which comprises treating an esterification reaction mixture with a basic substance, said esterification reaction mixture being obtained by reacting an organic carboxylic acid or its anhydride with an alcohol in the presence of an organometallic compound as an esterification catalyst, and purifying the product in a manner known per se; the improvement wherein prior to said treatment with the basic substance, water is added to the esterification reaction mixture and the mixture is heated.

Abstract: Heating unit capable of generating heat upon the passing of an electric current, which comprises a matrix of a hardened hydraulic material and electrically conductive fibers dispersed therein in an amount sufficient to impart electric conductivity and a method for producing the heating unit, which comprises kneading a hydraulic material, water and conductive fibers, optionally molding the kneaded mixture, and then hardening the mixture. The heating unit can be used in various applications such as general household applications, civil engineering applications, industrial applications and railroad applications.

Abstract: This invention relates to a self-cleaning type extruder including a cylinder and at least two screws therein adapted to rotate in the same direction, the screws being in such a relation that at any position in at least a part of the screws which lies in the longitudinal direction of the extruder, the contour of one screw in a cylinder cross-section taken at right angles to the screw axes is in substantial contact at one point with the contour in the same cross-section of another screw intermeshing therewith. A conventional self-cleaning type extruder lacks the ability to knead a resin stock uniformly and sufficiently.