摘要:
A film containing at least 5 wt % of an aromatic vinyl compound-&agr;-olefin random copolymer having an aromatic vinyl compound content of from 1 to less than 99.9% by molar fraction and having head-to-tail chain structures comprising at least two aromatic vinyl compound units.
摘要:
A material for keeping foods fresh which essentially comprises an aqueous stabilized chlorine dioxide solution containing potassium permanganate, chlorinated choline and magnesium chloride. The freshness-keeping material is capable of removing ethylene gas and bacteria from foods, and preventing them from gathering mold while being stored, thus keeping them fresh even if they are stored for a long period.
摘要:
The present invention provides an ion source comprising an ion-generating chamber and an anode formed of multi-capillary for sending high-density atoms or molecules to be ionized into the ion-generating chamber in a constant direction.
摘要:
A multilayer molding apparatus, comprising: a fixed platen; a movable platen; an intermediate platen positioned between the fixed platen and the movable platen to be movable in the direction to come close or be opened, and having a surface facing the fixed platen, a surface facing the movable platen, and a housing space that goes therethrough from the surface facing the fixed platen to the surface facing the movable platen; and a rotary platen rotatably supported by the intermediate platen inside the housing space of the intermediate platen, and having at least one pair of parallel surfaces facing the fixed platen and the movable platen, wherein at least one of the surfaces of the intermediate platen facing the fixed platen and the movable platen is a mold mounting surface on which a mold can be mounted directly or indirectly.
摘要:
The present invention provides a metal plate for heat exchange which facilitates nucleate boiling and is extremely excellent in heat conductivity. In the metal plate for heat exchange of the present invention, a recess part 2 having a depth of 5 μm or more and 10% or less of a plate thickness of the metal plate is formed. A crevasse part 7 is formed at least at a bottom corner 6 of the recess part 2. The crevasse part 7 is formed by cutting away the bottom corner 6 of the recess part 2 in the thickness direction. An angle θ formed by one cut-away surface and the other cut-away surface is 90 degrees or less. In addition, the crevasse part 7 is formed by cutting away a crystal grain 9. The recess part 2 is formed on the surface of the metal plate 1 by pressing a working part 14 formed on a surface of a working roll 12 against the surface of the metal plate 1 being carried.
摘要:
While a second layer resin is being charged, a movable platen is moved backward to reach a given movable platen position (S1) to enlarge the capacity of a second cavity. After the completion of charging of the resin, a toggle mechanism is promptly driven to reduce the second cavity capacity to reach a given movable platen position (S2), and after the lapse of a given time, the toggle mechanism is driven again to enlarge the second cavity capacity to reach a given movable platen position (S3). Thus, a high quality multilayer injection molded article which has small variations in the wall thickness, dimension, and mass and which is free from deformation or warpage can be stable obtained.
摘要:
A method for electroblowing fibers is provided which involves the steps of: forcing a polymer fluid through a spinneret in a first direction towards a collector located a first distance from the spinneret, while simultaneously blowing a gas through an orifice that is substantially concentrically arranged around the spinneret, wherein the gas is blown substantially in the first direction; wherein an electrostatic differential is generated between the spinneret and the collector; and collecting the fibers, and its use in preparing submicron scale fibers of various types, particularly hyaluronan fibers, and the hyaluronan nanofibers thus formed.
摘要:
A multilayer-molding method includes the steps of mixing at least one thermoplastic resin selected from a plurality of types of thermoplastic resins with a bubble-nucleating agent and a foaming gas, injecting the plurality of types of thermoplastic resins into a mold cavity such that the thermoplastic resins are layered in the mold cavity, and then, after increasing the volume of the mold cavity, foaming the at least one thermoplastic resin mixed with the bubble-nucleating agent and the foaming gas. The multilayer-molding method is characterized in that the foaming gas is supplied at a pressure of 0.1 MPa or more but less than 1.0 MPa to at least one injection-molding machine selected from a plurality of injection-molding machines, and that the thermoplastic resin plasticized in the injection-molding machine is mixed with the foaming gas.
摘要:
A method for injection foaming molding of a thermoplastic resin includes the steps of (1) injecting the foaming-agent-containing plasticized resin from an injection apparatus 30 to fill a mold cavity 10a, (2) releasing a clamping force of a mold 10 immediately after the foaming-agent-containing plasticized resin is injected and filled into the mold cavity 10a, so as to release the pressure of the foaming-agent-containing plasticized resin in the mold cavity 10a, (3) maintaining the pressure-released state of the foaming-agent-containing plasticized resin in the mold cavity 10a for a predetermined period of time, (4) expanding the mold cavity 10a to foam the foaming-agent-containing plasticized resin, and (5) cooling and maintaining the foaming-agent-containing plasticized resin while the mold cavity 10a is in the expanded state
摘要:
A method for producing a multilayer molded article having good feeling of touch without giving damages on a skin material at the vicinity of gate portions by fushion-bonding integrally a skin material to a core material using a horizontal mold clamping type injection molding machine which comprises steps of closing a movable mold so that a mold interval between the movable mold and a fixed mold is set to a predetermined distance after the skin material is set up in the cavity of a mold, starting injection and filling-up of a resin melt for a core material into the cavity of mold, retracting the movable mold with progress of injection and filling-up until the mold interval becomes a predetermined distance after lapse of a predetermined time from the start of injection, and clamping the mold again after the completion of the injecting.