Abstract: An adsorption type packing for gas chromatography composed of finely divided carbon particles in whole, and having a ratio of nitrogen gas adsorption at a relative pressure of 0.3 (V.sub.0.3) to nitrogen gas adsorption at a relative pressure of about 1.0 (V.sub.1.0) each in the adsorption isotherm of said packing, V.sub.0.3 /V.sub.1.0, of 0.9 or more and a BET specific surface area of 1,000 to 2,000 m.sup.2 /g; and a process for producing said packing.

Abstract: A packing material for liquid chromatography is produced by mixing 1.0 part by weight of carbon black, 0.5 to 2.5 parts by weight of one or a mixture of a synthetic resin which can be graphitized by heating and a toluene- or benzene-soluble component of pitches, and an organic solvent to obtain a mixture. The carbon black has a particle diameter of 12 to 40 nm, a specific surface area of 50 to 650 m.sup.2 /g, a DBP oil absorption amount of 50 to 150 ml/100 g. The synthetic resin is one selected from phenol resin, furan resin, furfural resin, divinylbenzene resin and urea resin. The pitches are ones selected from petroleum pitches, coal-tar pitches and liquefied coal oil. The mixture is granulated by spray granulation or emulsion granulation to obtain granules whose ratio L.sub.min /L.sub.max of a minor axis diameter L.sub.min to a major axis diameter L.sub.max is 0.90 to 1.0. The heat treatment of the granules is also made in an inert gas under pressure.

Abstract: A highly efficient, reliable method is provided for producing an electret filter having an excellent collection efficiency. In this method, a film containing a resin material with high molecular weight is formed and split to form split yarns. The split yarns are then subjected to a charging treatment, and the electret filter is produced from the charged split yarns.

Abstract: Supports for gas chromatography comprising aggregates of finely divided carbon particles, said aggregates having a bulk specific gravity of 0.2 to 0.5 and a specific surface area of not more than 1.0 m.sup.2 /g and being produced by coating finely divided particles, such as carbon powder, having a diameter of 100 .mu.m or less and a content of particles having a diameter of 5 .mu.m or less of 20% or less, with a liquid thermosetting resin, and subjecting the coated particles to forming, curing, heat-treating, dividing and classifying; and a process for preparing said supports.

Abstract: In accordance with the present invention, there are provided fiber reinforced heat-resistant polyolefin compositions comprising 5-85% by weight of polyphenylene sulfide (A), 15-95% by weight of modified polyolefin (B) having a melting point of above 200.degree. C., which has been graft-modified, either partly or wholly, with 0.01-10% by weight of unsaturated carboxylic acid or its derivative, 10-60 parts by weight, based on 100 parts by weight of (A)+(B), of reinforcing fiber (C) and, if necessary, 5-30 parts by weight, based on 100 parts by weight of (A)+(B), of oxazoline-modified polystyrene (D). The compositions thus provided are excellent in heat resistance, water resistance, moisture resistance and solderability, and that excellent in mechanical strength.

Abstract: A radioactive diagnostic agent which comprises as an active ingredient a glucosamine derivative of the formula: ##STR1## wherein Ac is an acetyl group and X is a radioactive iodine atom.

Abstract: A Tc-99m mononuclide complex compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group and X is an anion, which is useful as a radioactive diagnostic agent for imaging of brain, cardiac muscle, pancreas or the like.

Abstract: A method of gas carburizing and hardening a steel article and a continuous furnace therefor. The method includes the steps of carburizing the article in a carburizing atmosphere at atmospheric pressure, heating the article in a vacuum for a predetermined period of time, and hardening the article.

Abstract: A curable resin composition is disclosed which comprises (A) a polymer having a (meth)acryloyl group in a side chain, (B) an unsaturated alkyd which is formed by the esterification of a polyvalent alcohol component and an .alpha.-.beta.unsaturated polybasic acid or an anhydride thereof with or without a polybasic acid, the polyvalent alcohol component comprising a phenol-modified epoxy resin which is obtained by the reaction of an epoxy group of an epoxy resin and a phenolic hydroxyl group of a phenol, or the reaction product of a polyvalent phenol compound and a monoepoxide, (C) a polymerizable monomer, and (D) a curing agent. It is suitable for underwater linings, putties, sealing materials, and the like.

Abstract: A method of gas carburizing and hardening a steel article and a continuous furnace therefor. The method includes the steps of carburizing the article in a carburizing atmosphere at atmospheric pressure, heating the article in a vacuum for a predetermined period of time, and hardening the article.

Abstract: A radioactive or non-radioactive 2-iodobutyrophenone derivative the formula: ##STR1## wherein X is a radioactive or non-radioactive iodine atom. The radioactive compound has a high affinity for dopamine receptors and is very useful as a radioactive diagnostic agent and as a radiopharmaceutical, and the non-radioactive compound also as a high affinity for dopamine receptors and is very useful as a neuroleptic, a sedative, an anodyne, a tranquilizer, etc.

Abstract: The present invention provides a method of automatically controlling a sailboat having at least two soft sails, including the steps of sensing the wind direction to determine an angle of sail in each of the sails, sensing tensions and/or vibrations in each of the sails to adjust the curvature of that sail, and sensing the wind velocity to take in the sails. The present invention also provides an apparatus of automatically controlling a sailboat having at least two soft sails, including a wind direction sensor, a sail angle adjusting device connected with each of the sails and responsive to the output of the wind direction sensor to adjust an angle of sail in the sail, a sail angle sensor for identifying the adjusted angle of sail, a tension and vibration sensor connected with a sheet of each of the sails, and a curvature adjusting device responsive to the output of the tension and vibration sensor to adjust the curvature of the sail.

Abstract: A thermoplastic resin composition comprising a melt mixed product of (A) 70% to 98% by weight of at least one thermoplastic resin selected from the group consisting of polyamides, polyacetals, polyesters, and polycarbonates and (B) 30% to 2% by weight of ultra-high molecular weight polyolefin powder having an intrinsic viscosity [.eta.] of 10 dl/g or more, measured in decalin at 135.degree. C., and having an average particle size of 80 .mu.m or less and having a particle size distribution such that substantially all of the powder particles pass through a sieve having a sieve number of 100 and at least 20% by weight of the total powder particles pass through a sieve having a sieve number of 350.This thermoplastic resin composition has excellent abrasion resistance, excellent impact resistance, and a high critical PV value.

Abstract: A radioactive diagnostic agent having high labeling efficiency, prepared by bringing an aqueous solution of a radioactive metallic element contaminated with a non-radioactive metallic ions into contact with a non-radioactive carrier comprising a carrier substance having a chelate-forming property and optionally a physiologically active substance chemically bonded thereto, at least one of said aqueous solution and said non-radioactive carrier comprising at least one reductive material chosen from ascorbic acid and erythrobic acid, and their salts and esters.

Abstract: A radioactive diagnostic agent which comprises platelets labeled with radioactive iodine atom-labeled metaraminol in an aqueous medium.

Abstract: A radioactive diagnostic agent which comprises a physiologically active substance and a radioactive metallic element combined with a compound of the formula: ##STR1## wherein R is a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group and n is an integer of 0 to 4. The agent is characteristic in having a high stability even after being administered into a human body and showing the substantially the same behavior as the physiologically active substance itself in a human body.

Abstract: A radioactive diagnostic agent which comprises a physiologically active substance and a radioactive metallic element combined with a compound of the formula: ##STR1## wherein R, R', R.sup.1 and R.sup.2 are each a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group and n is an integer of 0 to 3. The agent is characteristic in having a high stability even after being administered into a human body and showing the substantially the same behavior as the physiologically active substance itself in a human body.

Abstract: A radioactive diagnostic agent for imaging of various organs, particularly of brain, which comprises a radioactive element such as .sup.

Abstract: A radioactive diagnostic agent which comprises deferoxamine, and a physiologically active compound and a radioactive metallic element chemically connected thereto with or without intervention of any other chemical bonding, which is characteristic in having a high stability even after being administered into a human body and showing substantially the same behavior in a human body as said physiologically active compound itself.