PURPOSE:To obtain the title high-density and high-critical-current superconductor by thermally melting the green compact of an oxide superconductor material arranged on a metallic cooling plate, quenching, and then annealing the molten material. CONSTITUTION:The green compact 5 of an oxide superconductor material is arranged in the recess 4 of the metallic cooling plate 3 set in a vacuum vessel 1....

PURPOSE:To stably form a film excellent in the superconducting characteristics by inserting a stage for applying paste having the specified componental composition on a substrate in the formation of the Bi-series superconducting oxide film. CONSTITUTION:In case of producing a Bi-Ae-Cu-O-series (wherein Ae is at least one kind of alkaline earth metals) superconducting oxide film, such a stage that ...

PURPOSE:To form a superconducting material having high Tc by substituting Sn element for Bi element in the Bi-series oxide superconducting material. CONSTITUTION:This superconducting material has composition shown by the formula (Bi1-ySny)Sr1Ca1Cu2Ox(0.05

PURPOSE:To obtain a superconducting material of Bi-Sr-Ca-Cu-series oxide consisting of a single phase having a high Tc phase by heat-treating both Bi-Sr- Ca-Cu-series oxide having specified composition and Sr-Ca-Cu-series oxide having specified composition at the specified temp. and allowing both oxides to react with each other. CONSTITUTION:Oxide (shown as A) which has the composition of Bi2+ or ...

PURPOSE:To obtain ceramics useful for a superconducting wire, a cutting tool, an IC board, etc., by evacuating the gap in ceramics put in a hermetically sealed vessel, introducing a specified soln. into the gap and heat treating the ceramics. CONSTITUTION:Ceramics is put in a hermetically sealed vessel and the degree of vacuum is regulated to 1-10<-6>Torr by exhaust to evacuate the gap in the cera...

PURPOSE:To increase the critical current density of a Bi-alkaline earth metal-Cu- O type oxide superconductor by specifying starting material and carrying out producing stages under specified conditions when the oxide superconductor is produced. CONSTITUTION:When a Bi-Ae-Cu-O (Ae is one or more kinds of alkaline earth metals) type oxide superconductor is produced, a fine powdery Bi-Ae-Cu mixture c...

PURPOSE:To increase the critical current density of a lanthanoid-alkaline-earth metal-Cu-O type oxide superconductor by specifying starting material and carrying out producing stages under specified conditions when the oxide superconductor is produced. CONSTITUTION:When an Ln-Ae-Cu-O (Ln is one or more kinds of lanthanoids and Ae is one or more kinds of alkaline earth metals) type oxide supercondu...

PURPOSE:To prepare a single phase Bi-(Sr,Ca)-Cu-O type oxide superconductor having high critical temp. by the dry process by heat-treating starting materials for the superconductor and quenching at a specified cooling rate. CONSTITUTION:Starting materials prepd. by mixing so as to provide a Bi-(Sr, Ca)-Cu-O type oxide superconductor, which exhibits superconductivity by heat treatment, are heat-tre...

PURPOSE: To wet a mixture inexpensively by a simple amount by adding water to a form containing a surfactant and a foam stabilizer or bringing the surfactant into contact with the stabilizer to alter it to the foam, adding the water, and icing the mixture to become a wet state. CONSTITUTION: Water is added to at least partly in a shape of a foam containing at least one type of surfactant and at le...

In a process for producing coatings adhering to the surface while being removable, a treatment liquid is produced from PUR elastomers enabling a thermoplastic treatment by admixing a solvent. Said treatment liquid, fluid or viscous depending on the mixture ratio, is applied to the surface and forms after evaporation of the solvent a coating adhering solidly to the surface while being completely re...

A novel process for the preparation of a readily dispersible, pourable dispersion powder comprising emulsion polymerizing in the presence of a free radial initiator a mixture of 1 to 50% by weight of ethylene and 99 to 50% by weight of an ethylenically unsaturated comonomer phase comprising at least one member of the group consisting of (a) 60 to 100% by weight of vinyl chloride, (b) 0 to 40% by w...

A foamable phenolic resole composition is foamed and cured with an acid curing agent which is an anhydrous aryl sulfonic acid which has a pKa of less than about 2.0 and which reduces the compatibility of the resole with water, e.g. benzene, toluene or xylene sulfonic acids. The phenolic foam formed has cell walls which are substantially free of perforations. The preferred anhydrous aryl sulfonic a...

A process for the preparation of an alkenyl aromatic polymeric foam body. The process comprising using water-containing organic vegetable matter as a blowing agent in combination with a volatile fluid foaming agent.

Polymerisable compounds which can be used for preparing biocompatible materials for medical and dental uses contain a) 15 to 60% by weight monomers with double bonds which can undergo radical polymerisation, b) 8 to 40% by weight fibrous inorganic fillers with a mean fibre length of 10 nm to 300 mu m and a ratio of length to diameter of 2:1 to 300:1, c) 15 to 60% by weight of non-fibrous inorgani...

Liquid crystal 4-(4'-cyanodiphenyl) ethers of trans-4''-n-alkylcyclohex-2-encarboxylic acids of a general formula (I), where R is CH3-C7H15 of a normal structure. A liquid crystal composition for electrooptical information for electrooptical information presenting devices consisting of the following parts by weight: 4-n-pentyl-4'-cyanodiphenyl: 6-8; 4-(4'-cyanodiphenyl) ethers of trans-4''-n-alkyl...

PURPOSE:To make a heat exchanger smaller in size, by composing a partition plate of two plates joined to each other, forming a refrigerant passage of grooves oppositely provided in joint surfaces of the two plates, and connecting the passage to the heat exchanger with a connecting pipe. CONSTITUTION:A partition plate 19 is provided to separate a blowing chamber 16 and a machine chamber 18 from eac...

PURPOSE: To substantially eliminate and decrease transmission of circulating axial and rotational stress from a distal region to a cortex bone attached to femur within a diaphysis by using a specified energy absorbing material. CONSTITUTION: An implant 10a has a proximal basic region 13 covered with a contmnuous, thin, hard and porous cover 26. An energy absorbing part 34 has a pad 35 as well as a...

PURPOSE:To realize an economical mechanism with one driving source, by providing an outer cylinder having an upper bead ring supporting flange on its lower end, the outer cylinder being relatively displacable in the axial direction, a housing having an lower bead ring supporting flange on its upper end, a detachable rod for stopping the rotation of the outer cylinder, the rod being provided on a r...