Abstract: An aluminum atom- and monocarboxylic acid residue-containing polyester is provided. Using the polyester as an adhesive or a base, laminates and laminated hollow vessels which comprise, as the constituent elements, the polyester and an ethylene-vinyl alcohol copolymer can be produced. The laminates and laminated hollow vessels are suitable for use as packaging materials or containers for food and drink.

Abstract: The invention provides a method of continuously copolymerizing ethylene and vinyl acetate in a solvent in the presence of a radical initiator without causing gel formation.

Abstract: A cobalt-chromium alloy consisting essentially______________________________________ Element Weight Percent ______________________________________ Cobalt 40-60 Chromium 20-35 Tungsten 10-20 Gallium 3-10 Rhenium 0.1-1.0 ______________________________________and from 1 to about 1.75% aluminum, said alloy constituents totalling 100%. These alloys exhibit outstanding physical properties and can be used advantageously as a substitute for precious metals and alloys thereof as well as nickel-chromium-based alloys in the fabrication of porcelain-veneered fixed bridgework and crowns.

Abstract: A method is provided for manufacturing a burr-free blank from an elongated sheet of flat metal stock comprisingpunching a first aperture in one surface of said metal stock, said first aperture extending only partially through said stock;simultaneously forming the lower burnished land portion of said blank;punching a second aperture in the opposite surface of said metal stock, coaxial with said first aperture, said second aperture extending only partially through said stock, said second aperture being smaller than said first aperture;simultaneously forming the upper burnished land portion of said blank, causing the material of said stock to fracture between said burnished land portions and recovering said burr-free blank.The resulting burr-free metal blank exhibits a shiny upper peripheral burnished land portion, a rough, fractured intermediate peripheral portion and a shiny lower peripheral burnished land portion, said lower land portion having a smaller circumference than said upper land portion.

Abstract: Treatment of the blood by means of a blood purification device comprising packed, substantially spherical, smooth-surfaced, porous granules having at least 0.1 .mu.mole/m.sup.2 of the silanol group on the surface thereof, a blood inlet and a blood outlet scarcely causes decrease in leukocyte or platelet count or blood cell damage and can remove proteins from the blood by adsorption without high pressure loss.

Abstract: A cobalt-chromium dental alloy for use in porcelain-fused-to-metal restorations consisting essentially of about:______________________________________ Element Weight Percent ______________________________________ Cobalt 40-60 Chromium 20-30 Ruthenium 5-15 Aluminum 1-4 Yttrium 0-0.15 Tungsten 0-15 Molybdenum 0-6.5 Niobium 0-3.0 Zirconium 0-0.25 Manganese 0-1.5 ______________________________________wherein the sum of the constituents equal 100% and the sum of the tungsten and molybdenum constituents minus the sum of the ruthenium, niobium and zirconium constituents is less than about 5%. These alloys exhibit outstanding physical and chemical properties, including the formation of a tenacious bond with porcelain without the need for a separate bonding agent, and can be used advantageously as a substitute for alloys having a high proportion of precious metals as well as for nickel-chromium-based alloys in the fabrication of porcelain-veneered fixed bridgework and crowns.

Abstract: A self-actuated dental capsule is provided which includes a three-part container for holding the liquid component of an amalgam. One part of the container holds the liquid; a second part is used to attach the container along an inner side wall of the capsule so that the container is not repeatedly pounded by the amalgam during the vibratory process; and the third part allows the liquid to achieve sufficient momentum when the capsule is vibrated in a dental amalgamator to rupture the container.

Abstract: A dental alloy for use in porcelain-fused-to-metal restorations including palladium, cobalt, gallium, gold, aluminum, copper, zinc and ruthenium or rhenium. The cobalt controls the coefficient of thermal expansion of the alloy to permit the use of the alloy with commercially available porcelains having a variety of thermal coefficients. The zinc serves as a scavenger during formation and casting of the alloy. The aluminum protects the alloy from absorbing gases during torch melting and during the porcelain firing process. The ruthenium or rhenium provides grain refining for the alloy to increase its elongation, tensile strength, and thus toughness. The alloy with ruthenium or rhenium as a grain refining agent must be made in a protective environment to avoid the formation of bubbles in the procelain during the procelain firing process.

Abstract: A self-actuating dental capsule is provided which includes a rupturable container for the liquid component of a dental amalgam. The container is held in the capsule by a retaining sleeve or disk so that the amalgam can be immediately used by the dentist without the need to separate the container from the amalgam. The container and the retaining means can be formed as a unit prior to placement in the capsule.

Abstract: A surface-modified synthetic fiber is provided by plasma irradiating a synthetic fiber containing fine particles. Recesses and projections are formed on the surface of the fiber. The recesses are formed by being etched with plasma in the portion not shielded by the fine particles; the projections are formed by not being etched in the portion shielded by the fine particles. The resulting fiber has an irregular surface such that the distance between the center points of adjacent projections is between approximately 0.03 and 1 microns and the number of projections is between approximately 1 and 200 per square micron.

Abstract: A sheet-like material having excellent fire resistance and bending workability comprises 80 to 97% by weight of a non-flammable fibrous substance, and 3 to 20% by weight of a binder consisting essentially of a thermoplastic resin. The fibrous substance is orientated at an angle of 3.degree. to 80.degree.. The material has an intermediate layer containing at least 2% by weight of the binder and at least 25% of the average quantity of the binder in the material. A heat insulating material comprising such sheet-like materials is also disclosed. The sheet-like material, and the heat insulating material are manufactured by a wet sheet forming process in which a slurry containing the fibrous substance and the binder is fed to a carrier net or sheet at an angle of 5.degree. to 60.degree. thereto, whereby the fibers are orientated. Alternatively, the slurry is fed to the carrier net or sheet at an angle of 20.degree. to 45.degree., while a fluid is blown into the slurry to create turbulence therein.

Abstract: A copolymer having high strength and high elastic modulus is produced by copolymerizing (a) a polyamide oligomer prepared from a piperazine compound and an aromatic dicarboxylic acid and (b) a polyalkylene terephthalate monomer or a prepolymer thereof. The copolymer is useful as a rubber reinforcing fiber, a magnetic tape base film, and a coating material.

Abstract: A machine for producing yarn loops comprises a rotary winding flyer or member having a discharge end through which the yarn emerges. A winding means for collecting the yarn loops is provided and transfers the loops to a conveyor. In order to secure the end of the yarn as it emerges from the discharge end upon start up of the machine a pair of rings are provided which can be moved relative to each other by a powered device. The rings define complementary surfaces between which the end of the yarn is passed prior to the rings being moved into engagement with each other to secure the end of the yarn. The rings are moved apart after at least one yarn loop has been produced.

Abstract: A column for adsorption of blood proteins is disclosed which comprises a blood inlet and a blood outlet each with a filter, and a porous material packed between both the filters, which material has a mean pore diameter (D) of 30-3,000 amgstroms with the volume occupied by pores with diameters of 0.8D-1.2D being at least 80% of the whole pore volume. The adsorption column can eliminate specific blood proteins by selective adsorption and is useful in the treatment of autoimmune diseases and cancer, for instance.

Abstract: Treatment of the blood by means of a blood purification device comprising packed, substantially spherical, smooth-surfaced, porous granules having at least 0.1 .mu.mole/m.sup.2 of the silanol group on the surface thereof, a blood inlet and a blood outlet scarcely causes decrease in leukocyte or platelet count or blood cell damage and can remove proteins from the blood by adsorption without high pressure loss.

Abstract: This invention relates to filling material composed of crimped fibers joined together at one end with a high density, and having crimps located in mutually deviating phases, while the other ends of the fibers stay free, and a process for manufacturing such filling material. The filling material exhibits superior bulkiness and thermal insulation, since the recovery force or resiliency of the crimps located in mutually deviating phases causes the fibers to spread sufficiently to contain a large quantity of air among themselves.

Abstract: Body cavity fluids, such as ascitic fluid and pleural fluid, are concentrated and filtered to remove bacteria and cancer cells, and the filtered concentrate is returned to the patient intravenously. The concentration and filtration are performed batch-wise, with the concentration being done before the filtration. The apparatus for concentrating and filtering includes a first container for holding the body fluid, a second container for holding the final filtered concentrate, a filter, a concentrator, a pump and two branched tubes connected to the filter and the concentrator which tubes can be selectively closed for concentrating and filtering the body fluid. The fluid outlet of the first container is designed to help prevent precipitated fibrin from passing out of the container and blocking the concentrator or filter membranes.

Abstract: This invention provides a method for treating blood plasma wherein a hollow fiber membrane which comprises at least a skin layer on one surface of the membrane and also a porous layer inside the membrane is employed. The skin layer of the membrane has micropores with average pore size of 50 to 450 A, and the membrane shows a water permeability of 80 ml/m.sup.2.hr.mmHg or more, and permeabilites for human blood plasma albumin of 85% or more and for human blood plasma immunoglobulin G(IgG) of 80% or more, and a rate of inhibition against human blood plasma immunoglobulin M(IgM) of 40% or more. Use of the above mentioned hollow fiber membrane, which makes it possible to selectively remove immune complex, rheumatoid factors, etc., without decrease in levels of immunological functions, brings excellent effects on therapy of autoimmune diseases.

Abstract: The invention provides an apparatus for plasma separation/exchange by double-step-membrane filtration, namely separation of blood into plasma and a corpuscular fraction and separation of high-molecular-weight substances (e.g. gamma-globulin) in the plasma from low-molecular-weight substances (e.g. albumin), and addition of a substitute fluid. A method of treating blood is also provided.The apparatus and method are effective e.g. in the treatment of blood of patients with peripheral circulatory insufficiency due to arteriosclerosis and of patients with rheumatoid arthritis, which is an autoimmune disease.

Abstract: A stabilized water-in-mineral oil emulsion containing a finely divided stabilizer which is substantially undissolved in the constituent phases of the emulsion and forms an interface between said phases. The emulsion is produced starting from water, mineral oil, a surfactant and a stabilizer, which is preferably formed in situ.The emulsion can be used as fuel and displays an improved combustion.