Abstract: A process and an apparatus for forming aerosols of pesticidal chemicals, said process comprising vaporizing water in a steam generator fitted with a heater, heating the resultant steam to 110.degree.-800.degree. C in a superheating means, passing the superheated steam from the superheating means, while controlling its temperature, to an evaporator containing the pesticidal chemicals and connected to the steam generator through superheater thereby to effect the heating, evaporation and entrainment of the chemicals with steam, releasing the resulting entrained vapor in the air to form aerosols of the pesticidal chemicals. The aerosols are used to control indoor or outdoor fungi, bacteria, viruses, and insects.
Abstract: Metallized plastic composite films including a metallic layer, a layer of a polyvinylidene fluoride homopolymer or copolymer and, optionally, a layer of reinforcing or other insulating material are disclosed.
Abstract: A continuous filtering process and apparatus therefor in which a violent turbulence of fluid to be filtered is caused in a filter tank through which the fluid is continuously flowed. The turbulence is caused by rapidly rotating rotators which are arranged in the filter tank so that the surfaces of the rotators face the surfaces of filter media provided in hollow filter disks. A small interval such as three or five millimeters occurs between the rotators and the filter disks. Such violent turbulence of the fluid rapidly disperses concentrated fluid from the surfaces of the filter media so that the clogging of the filter media or the formation of a concentrated polarization layer is substantially prevented. Continuity of the filtering operation is therefore increased even when filter media having very fine perforations therethrough are employed.
Abstract: Method and apparatus for producing a synthetic resin tube by deforming a strip of synthetic resin and joining both lateral surfaces of the deformed strip together while transporting the strip in its longitudinal direction.
Abstract: An apparatus for manufacturing from a cassette which initially has a continuous leader extending between and connected to a pair of rotary hubs thereof and from an elongated flexible information material carrying information which can be extracted from the material a cassette which has a length of the information material stored in the cassette with opposed ends of the information material connected with leaders which are respectively connected to the rotary hubs of the cassette.
Type:
Grant
Filed:
April 2, 1976
Date of Patent:
December 13, 1977
Assignee:
Tokyo Denki Kagaku Kogyo Kabushiki Kaisha
Abstract: A stabilizer composition for chlorine-containing polymers having a much reduced tendency to blow at the molding step, which comprises (A) an inorganic stabilizer having a power volume of at least 0.5 cc/g, said stabilizer (A) consisting essentially of at least one member selected from the group consisting of silicates of metals of Groups II and IV of the Periodic Table and composites of silicate acid with oxides, hydroxides and carbonates of said metals, and (B) an organic additive having a boiling point or decomposition point higher than a chlorine-containing polymer-processing temperature, said organic additive (B) being incorporated into the stabilizer (A) at a weight ratio (A) : (B) of 1 : at least 0.1 so that the pore volume ratio defined by the following formula: ##EQU1## WHEREIN PVc denotes the pore volume (cc/g) of the entire composition and PVa denotes the pore volume (cc/g) of said inorganic stabilizer (A),is not higher than 0.8.
Abstract: A method for preventing or eliminating water-absorption whitening of a molded article containing an acrylonitrile polymer or copolymer which comprises immersing the molded article into an aqueous medium containing a salt.
Abstract: Process for drying wet particles of hydrolyzed ethylene-vinyl acetate copolymer under the specific condition as follows:A. a pressure in a dryer of not more than 120 mmHg,B. a temperature of the heating surface of dryer of not more than 100.degree. C., andC. T .times. .theta..sup.0.6 .ltoreq. 320, wherein T is a temperature (.degree. C.) of the heating surface of dryer and .theta. is a residence time (hour) of the particles in the dryer. The thus obtained particles have excellent molding properties.
Abstract: A coating composition for building materials which comprises 100 parts by weight of a quaternary ammonium silicate having a silica content, calculated as SiO.sub.2, of 5 to 70% by weight, 2 to 200 parts by weight of a metal oxide and/or hydroxide capable of converting silica sol to silica gel and water in an amount sufficient to plasticize said composition.
Abstract: Separate polarizing electrodes are attached to the opposite surfaces of a thermoplastic film. A high D. C. voltage is then applied across these electrodes to polarize the film to produce an electric element, such as an electret, piezoelectric or pyroelectric element. Portions of the polarizing electrodes are then selectively removed to form the operating electrodes required for the electric element.
Abstract: Process for preparing succinylsuccinic acid diesters by subjecting .gamma.-haloacetoacetic acid esters to dimerization in the presence of a base in a mixed medium of alcohol and water containing a specific amount of a water-immiscible organic compound. The succinylsuccinic acid diesters with good quality can be prepared in high yields and can be employed effectively as intermediates for quinacridone pigment.
Abstract: A process for preparing granular sorbic acid by adding water and/or a lower alkyl alcohol to powdery sorbic acid, kneading the resulting mixture under specific conditions to give a uniformly wetted powder, supplying the wetted powder to a screw type extruding machine, extruding the wetted powder through a perforated-cylinder die under specific conditions to give a vermicelli-like extrudate, and drying the extrudate. The obtained granules have sufficient rigidity and can be easily powdered by a mechanical action. When starch is added together with water and/or a lower alkyl alcohol, more rigid granules, but able to be easily powdered by a mechanical action such as agitation, are obtained.
Abstract: A machine for processing and securing parallel lead electronic circuit elements into lead receiving openings formed in a printed circuit board is provided. The machine includes a supply assembly for selectively supplying one group of a plurality of distinct groups of parallel lead electronic circuit elements, the supply assembly including a selecting sub-assembly for selecting one of the circuit elements from the selected group circuit elements to be supplied. A transfer assembly includes a chuck for receiving the supplied circuit elements and displacing same to a release position. An insert assembly is adapted to effect release of the circuit elements when the chuck is displaced to a release position and includes a holding sub-assembly for receiving each circuit element released by the chuck at the release position and a plunger sub-assembly adapted to engage the circuit elements at the release position and displace the circuit elements from the release position to an inserted position.
Type:
Grant
Filed:
April 2, 1976
Date of Patent:
October 25, 1977
Assignee:
Tokyo Denki Kagaku Kogyo Kabushiki Kaisha
Abstract: A process for preparing granular potassium sorbate by adding water or a mixture of water and an organic solvent to powdery potassium sorbate, kneading the resulting mixture under specific conditions to give a uniformly wetted powder, supplying the wetted powder to a screw type extruding machine, extruding the wetted powder through a perforated-cylinder die under specific conditions to give a vermicelli-like extrudate, and drying the extrudate.
Abstract: A method of removing nitrogen oxides from a gas containing nitrogen oxides and converting same to a salt of imidodisulfonic acid, wherein the gas containing nitrogen oxides is brought into contact with an aqueous solution which contains at least one ferrous salt and at least one sulfurous acid alkali salt to absorb the nitrogen oxides in solution in the form of imidodisulfonic acid alkali salts.
Type:
Grant
Filed:
July 7, 1976
Date of Patent:
October 25, 1977
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha
Inventors:
Shigeru Saitoh, Tetsuya Watanabe, Koji Konno, Tadashi Nakamura
Abstract: A process for preparing a chloroprene-based liquid polymer having active terminal groups substantially at the terminals thereof comprising polymerizing chloroprene alone or in combination with one or more monomers copolymerizable with chloroprene in (1) an organic solvent having a boiling point of about 160.degree. C or less at atmospheric pressure and selected from the group consisting of aromatic hydrocarbons, aliphatic halogenated hydrocarbons and cyclic ethers, or (2) in carbon disulfide, which is present in an amount of about 20 to 200 parts by weight per 100 parts by weight of the total monomer, in the presence of a xanthogen disulfide compound represented by the formula: ##STR1## wherein R can contain from 1 to 12 carbon atoms and is an alkyl group, an aryl group, an aralkyl group or a cycloaliphatic group, which is present in an amount substantially equal to a ratio of about 2.5 to 20 parts by weight of diethyl xanthogen disulfide per 100 parts by weight of the total monomer.
Abstract: An improved method for effecting cross-lamination of wide warp and weft webs is provided, wherein a continuous row of cut weft webs having a length corresponding to the width of the warp web to be cross-laminated thereto and arranged in side by side relationship is temporarily prepared on a warp material which is (1) a belt means from which said row of weft webs is transferred onto a warp web in order to be fixed thereto for effecting cross-lamination, (2) a warp web backed up by a belt means from which said row is peeled off in the state loaded on the warp web in order to be fixed thereto for effecting cross-lamination, or (3) a warp web itself to which said row is fixed for effecting cross-lamination, so that the warp material travelling crosswise over the cut weft web at a vertical distance apart therefrom and having been wetted with a liquid having adhesion property to the surface thereof facing said cut weft webs is subjected to successive reciprocating vertical motions so as to touch and pick up the cut
Type:
Grant
Filed:
July 27, 1976
Date of Patent:
October 4, 1977
Assignees:
Polymer Processing Research Institute Ltd., Sekisui Kagaku Kogyo Kabushiki Kaisha
Abstract: A chlorine-containing resin composition comprising a chlorine-containing resin and at least one calcium compound selected from the group consisting of 2CaO.SiO.sub.2, 3CaO.SiO.sub.2, 3CaO.2SiO.sub.2, the above enumerated compound(s) having coated thereon an organic silicon compound, CaO.TiO.sub.2, 2CaO.TiO.sub.2, 3CaO.TiO.sub.2, CaO.Al.sub.2 O.sub.3, 2CaO.Al.sub.2 O.sub.3, 3CaO.Al.sub.2 O.sub.3, CaAl.sub.2 O.sub.4, CaB.sub.2 O.sub.6, Ca.sub.7 MgAl.sub.10 O.sub.23, CaNb.sub.2 O.sub.6, CaTa.sub.2 O.sub.6, CaTiO.sub.3, CaZrO.sub.3 and CaZrTi.sub.2 O.sub.7. The chlorine-containing resin composition may further comprise an organic acid salt and/or an organic tin compound.
Abstract: Polysaccharides are produced by purifying a liquid extract of a mycelium of a strain of fungus species belonging to the class Basidiomycetes or the filtered broth of a cultured medium in which a mycelium of a selected strain of Basidiomycetes has been incubated; the polysaccharides exhibiting an anticarcinogenic activity in mice.
Abstract: A resistor composition and process for making the same which comprises a conductive material, a glass frit and a vehicle therefor or a conductive material, a glass frit, an insulating or semiconductive metal oxide and a vehicle therefor, the weight ratio of said conductive material, said glass frit and said metal oxide, when the latter is present, being maintained substantially constant, wherein the resistance value of said composition is established by varying the total surface area of said conductive material, and said glass frit and, when applicable, said metal oxide, without changing the temperature coefficient of resistance of said composition.