Abstract: A bioreactor carrier is provided composed of a water absorption gel of a crosslinked N-vinylcarboxamide resin which has a great moisture content and excellent physical strength, is not eroded by microorganisms and is easily mass-produced on an industrial scale. The gel is obtained by swelling and gelling a crosslinked N-vinylcarboxamide resin made from an N-vinylcarboxamide such as N-vinylacetoamide. The swollen gel may be in the form of beads of 1.0 to 20 mm, and the resin when swollen with water has a water absorption coefficient of 500 to 3500%. Resin beads may be swollen in a suspension of a biocatalyst such as animal cells, plant cells, microorganisms or protozoans to bind and immobilize the biocatalyst to form a bioreactor. The microorganisms can be nitrate bacteria, denitrification bacteria or Hyphomycetes, and the bioreactor may be used to treat waste water or for deodorizing.

Abstract: To provide a sheet for ink-jet recording having a low ink-spreading property and an excellent sheet-feeding property, a sheet for ink-jet recording which comprises a base material taking the form of sheet and an ink receiving layer which is laminated onto at least one surface of the base material and contains a binder and fine porous polysaccharide particles is produced. Further, the above-mentioned sheet for ink-jet recording wherein the fine porous polysaccharide particles are exposed on the surface of the ink receiving layer to form unevenness thereon is produced.

Abstract: A water-insoluble, nonionic water-absorptive polyurethane fiber that combines the properties of high water absorptivity and excellent physical strength is produced by extrusion from a thermoplastic polyurethane resin composition at a temperature higher than its melting point. The thermoplastic polyurethane resin composition, which has a water absorption rate within the range of 200-3,000%, is obtained by reacting a polyisocyanate compound, a water-soluble polyalkylene ether polyol having a weight-average molecular weight of 2,000-13,000 and a chain extender at an equivalent ratio (R ratio) between the equivalent number of NCO groups and the equivalent number of OH groups in the range of 1.0 to 1.8. Also provided is a method of producing the water-absorptive polyurethane fiber.

Abstract: A bioreactor carrier is provided which is a thermoplastic organic high molecular compound having a swelling rate of volume in water of 150-4,000% and which is useful as a carrier to which animal cells, plant cells, microorganisms and/or protozoans are fixed to obtain a bioreactor for substance production, harmful substance treatment, waste oil treatment, wastewater treatment, deodorization or the like. A method of producing the carrier includes the steps of reacting long-chain and short-chain polyol compounds and an isocyanate compound to obtain a thermoplastic resin, heating the thermoplastic resin to its melting temperature thereby plasticizing it, extruding the plasticized resin into strands with an extruder, and continuously chopping the strands into pellets.

Abstract: Resin compositions, melt-extruded articles, oriented articles and packaging materials for foods obtained from these articles are disclosed. The resin composition includes: (a) from 40 to 80% by weight of a PVA (A) having a degree of saponification of from 60 to 95 mole % by weight, (b) from 5 to 40% by weight of EVOH (B), (c) from 1 to 15% by weight of a thermoplastic resin (C) having a softening temperature not higher than 130.degree. C. and (d) from 5 to 15% by weight of a PEG (D), the total of (A), (B), (C) and (D) being 100% by weight.

Abstract: The present invention provides 1) a polysaccharide composition and a polysaccharide both having a heparinoid activity, obtained from green algae belonging to Codiaceae of Codiales, 2) a processes for producing said polysaccharide composition and said polysaccharide, as well as 3) an anticoagulant containing, as an active ingredient, said polysaccharide composition or polysaccharide both having a heparinoid activity.

Abstract: A biaxially stretched heat-shrinkable laminated film is disclosed which possesses good heat-shrinkability, excellent melt hole resistance and heat-resistant sealing property (the heat resistance of a seal portion), and highly satisfactory cold resistance, retains transparency even after shrinkage, and serves advantageously as a wrap for packaging foodstuffs. The laminated film is provided as an oxygen barrier layer with a layer of a mixture of vinylidene chloride resin and a low melting point polyamide resin having a crystalline melting point of not higher than 210.degree. C. This mixed resin has been cross-linked by applying the electron beam to the laminate in a dosage in the range of 1 to 12 megarads. The laminated film exhibits a heat shrinkage percentage of not less than 15% at 90.degree. C. and excels in gas barrier property.

Abstract: Disclosed herein is a smoked food-package produced by packaging a foodstuff with a smokable packaging material and smoking the packaged foodstuff wherein the smokable packaging material comprises at least one layer of a mixture of 5 to 60% by weight of vinylidene chloride resin and 95 to 40% by weight of polyamide, said smokable packaging material having a practical smokability, high oxygen barrier property and high water vapor barrier property, and a smoking process.

Abstract: Disclosed herein are a resin composition comprising 5 to 95% by weight of a vinylidene chloride resin and 5 to 95% by weight of a polyamide resin having a low crystalline melting point of not higher than 210.degree. C. and a molded product of said resin composition.The molded product of the present invention shows a molded product excellent in gas-barrier property and impact strength at low temperature, particularly a film, sheet or container.Among the resin compositions of the present invention, since the composition having 60 to 95% by weight of vinylidene chloride resin is particularly rich in gas-barrier property, it is suitable for packaging foods, and since the composition having more than 40% by weight and not more than 95% by weight of polyamide resin is excellent particularly in impact strength at low temperature, it is suitable as the packaging material for use at an extremely low temperature.

Abstract: A developing device effects desirable development when the amount of charging of toner, q (C/g), the amount of toner deposited on the surface of a developing roller per unit area, m (g/cm.sup.2), the speed of movement of the surface of the developing roller, v (cm/sec), the available length of the developing roller, l (cm), and the magnitude of electric resistance between the surface of the developing roller and a power source for developing bias, R (.OMEGA.), are adjusted so as to satisfy the formula, .vertline.q.vertline.m.ltoreq.100/vlR. The developing device produces a developed image desirable in quality and free from background fogging when the magnitude of a developing electric current, I (A), is adjusted so as to satisfy the formula, R.ltoreq.200/I.

Abstract: A developing apparatus is disclosed that employs one-component non-magnetic toner. The apparatus includes a movable developing agent carrier that has a surface polished to a first finish, roughened to a second finish, and then metal plated. The agent carried carries a one-component developing agent composed of non-magnetic toner and supplies the developing agent to an electrostatic latent image. An elastic coating member is disposed to press on the surface of the movable developing agent carrier so that the free end thereof is directed opposite to the moving direction of the movable developing agent carrier, and a toner stirring member disposed in a toner container contiguously to or in sliding contact with the movable developing agent carrier. The apparatus provides a uniform toner layer over a long period of time and supplies stable and high quality images.

Abstract: A developing method for converting an electrostatic latent image on the surface of an electrostatic latent image holder into a visible image by arranging the electrostatic latent image holder for holding the electrostatic latent image thereon and a toner conveyor for conveying non-magnetic one-component type toner thereon an extremely small space apart from each other; applying the non-magnetic one-component type toner onto the toner conveyor; and transferring the toner to the electrostatic image holder, satisfies the following requirements: the aforesaid developing agent is composed of non-magnetic type toner; the frictional charge quantity relative to the surface of the non-magnetic type toner is +30 100 .mu.C; and fluidity is 5 g or less in terms of the toner amounting to 20 g but remaining on a 100-mesh sieve after it has been vibrated at a rate of 3,000 V.P.M. and an amplitude of 1 mm for 30 seconds.

Abstract: In an ink jet system, first and second main electrodes are arranged on an insulating substrate board so as to be extended to one side of the board and connected to first and second auxiliary electrodes through photoconductive sections, respectively. An ink reservoir is formed on the board and an optical system is located above the photoconductive sections. First and second control electrodes are arranged along the one side of the board in an ink jet port of the reservoir so as to face the main electrodes. A back electrode is arranged as to face the ink jet port.

Abstract: A developing apparatus comprises a developing roll for carrying a nonmagentic toner thereon, and an elastic blade pressed against the outer circumferential surface of the developing roll to apply the toner thereto. The toner is applied to the surface of the developing roll by the elastic blade to form a thin layer of the toner on the surface of the developing roll. The thin layer is opposed to a photosensitive body to deposit the toner on a latent image on the photosensitive body. The developing roll has a surface which is opposite to the photosensitive body and the whole of which is roughened.

Abstract: A developing apparatus comprises a developing roll for carrying a nonmagnetic toner thereon, and an elastic blade pressed against the outer circumferential surface of the developing roll to apply the toner thereto. The toner is applied to the surface of the developing roll by the elastic blade to form a thin layer of the toner on the surface of the developing roll. The thin layer is opposed to a photosensitive body to deposit the toner on a latent image on the photosensitive body. The developing roll has a surface which is opposite to the photosensitive body and the whole of which is roughened.

Abstract: In a developing device for supplying developer to latent images formed on an image support, a container in which the developer is contained has a sloping bottom. The container has an opening in its top so as to release the developer particles therethrough. The container houses a developer carrier, which is arranged above the sloping bottom of the container with one end located on the lower side of the sloping bottom of the container immersed in the developer particles, and with its other end located on the higher side of the sloping bottom thereof. The developer carrier has a plurality of linear electrodes arranged thereon, starting from one end to the other end, and has an electric field generator connected to these linear electrodes to successively apply voltages to these electrodes so as to generate an electric field which advances according to a lapse of time, whereby the developer particles are carried along the developer carrier, from one end to the other.

Abstract: An ion flow modulator with high reliability used in a photocopying machine to obtain a high quality image.

Abstract: In a recording apparatus of the present invention, a visible image based on image information is formed on an ordinary sheet by a developer. The recording apparatus comprises a developing roller spaced at a predetermined distance from and facing the ordinary sheet and carrying the developer thereon, a recording electrode and a signal source connected thereto, for propelling the developer on the developing roller to the ordinary sheet by generating an electric field between the ordinary sheet and the developing roller according to the image information, a plurality of mutually insulated electrodes provided on the developing roller and extending therefrom in one direction, an A.C. and a D.C. source are connected to the electrodes, for generating an alternating electric field between adjacent ones of the electrodes to cause oscillations of the developer found between the adjacent electrodes along electric lines of force therebetween to thereby liberate the developer from the developing roller.

Abstract: An apparatus for making a bar positioning member of a single wire which has a plurality of S-shape doubled-back portions spaced along the length thereof to form indentations for receiving metal bars transverse to the wire. The apparatus comprises guide means for intermittently moving a wire along a fixed path and a pendulumlike mold member swingable about the base end thereof. The mold member has a grip to hold an intermediate portion of the wire, and the contour of the base end is shaped in conformity with the shape of the identation. After forming a S-shaped indentation in the wire by rotation of the mold member through about 180.degree. the mold member is retracted to allow the wire to be advanced for formation of the next indentation. Also, notch means on the mold member and corresponding punch means provide an inwardly directed projection for retaining a bar in the indentations.

Abstract: A five-layered packaging film comprises (a) an outer layer, (b) an adhesive layer, (c) a core layer, (b) an adhesive layer and (d) an inner layer in the order of lamination. The five-layered packaging film of the present invention is favorable in transparency, surface lustre, gas-barriering property. Further, the film has good thermoformability, heat-sealability and suitable shrinkability.