Abstract: In a coating device wherein a relative movement between an application nozzle located above a coated object W and the coated object is effected to apply a coating liquid P in a coating liquid reservoir of the application nozzle onto a surface of the coated object via a slit-shaped discharge port, the coating device includes: a shutter member rotatable in the coating liquid reservoir to open or close space between the coating liquid reservoir and the slit-shaped discharge port; and a gas feed regulation means for regulating the pressure on the coating liquid in the coating liquid reservoir, and is characterized in that in a state where the gas feed regulation means maintains the pressure on the coating liquid in the coating liquid reservoir to be at a given level, the shutter member is rotated to open or close space between the coating liquid reservoir and the slit-shaped discharge port.

Abstract: Provided is a coating apparatus where a coated object W is moved relative to an application nozzle 10 located above the coated object, and a coating liquid P is applied to a surface of the coated object via a slit-shaped discharge port 12 at a distal end of the application nozzle. In a coating liquid reservoir 11 storing the coating liquid therein, a coating liquid feeder 14 formed with a coating liquid holding recess 14a in a predetermined pattern shape is rotatably disposed at place above the slit-shaped discharge port. A partition member 13 for dividing the slit-shaped discharge port into plural discharge parts 12a along the longitudinal direction of the slit-shaped discharge port is disposed in the slit-shaped discharge port. The coating liquid feeder 14 is rotated to apply the coating liquid to the surface of the coated object via the discharge parts at places corresponding to the coating liquid holding recess.

Abstract: It is provided a double side coating device which can maintain a thickness of a coated film in constant. The double side coating device has a back up roller supporting a web material, a first coating head that is placed opposite to the back up roller and that applies a coating material onto a first surface of the web material, a suction roller that is provided with a plurality of supporting portions which projects annularly so as to contact with a uncoated portion of the first surface of the web material and on circumference of which suction holes are opened to suck atmosphere, and a second coating head that is placed opposite to the suction roller and that coats second surface of the web material with a coating material.

Abstract: A board capable of capturing and decomposing both formaldehyde and acetaldehyde comprises a wood fiber board comprising a plant fiber of 30 wt % or more, and an aldehyde capturing agent comprising at least carbodihydrazide which is impregnated and solidified inside the side of the fiber board. In addition to the wood fiber board, a fiber board made of a mixture material of a resin fiber and a plant fiber combined. A carbodihydrazide is sprayed onto the fiber board in the form of water solution and optionally comprises a surfactant.

Abstract: It is provided a double side coating device which can maintain a thickness of a coated film in constant. The double side coating device has a back up roller supporting a web material (W), a first coating head that is placed opposite to the back up roller and that applies a coating material onto a first surface of the web material (W), a suction roller (4) that is provided with a plurality of supporting portions which projects annularly so as to contact with a uncoated portion of the first surface of the web material (W) and on circumference of which suction holes (14) are opened to suck atmosphere, and a second coating head (3) that is placed opposite to the suction roller (4) and that coats second surface of the web material (W) with a coating material.

Abstract: A wet process type hard fiberboard is provided that is environmentally-friendly by finding a reinforcing agent that does not result in environmental contamination as the agent takes the place of phenol resin having a significant effect on environmental contamination. This environmentally-friendly wet process type hard fiberboard uses acrylic resin and epoxy resin not containing bisphenol A as reinforcing agents in place of conventional phenol resin. Both reinforcing agents are thermosetting resins, hardly reacting at all at temperatures of 100° C. or lower, and reacting rapidly at temperatures above 140° C. which results in curing, while in terms of environmental protection, these reinforcing agents are optimally suited for use in wet process type hard fiber boards in which water is used by recycling numerous times, with any of the water used being hardly discharged to the outside.

Abstract: A board capable of capturing and decomposing both formaldehyde and acetaldehyde comprises a wood fiber board comprising a plant fiber of 30 wt % or more, and an aldehyde capturing agent comprising at least carbodihydrazide which is impregnated and solidified inside the side of the fiber board. In addition to the wood fiber board, a fiber board made of a mixture material of a resin fiber and a plant fiber combined. A carbodihydrazide is sprayed onto the fiber board in the form of water solution and optionally comprises a surfactant.

Abstract: A substrate is placed on a support surface of a table. The support surface has a flatness of 2 &mgr;m or less. The table has a plurality of holes in the surface. A vacuum is created in the holes to bring the substrate into close contact with the support surface. This eliminates deformations of the substrate, such as twisting and curving. A coating die is moved above the table to apply a coating material onto the substrate. Consequently, a coating having a constant thickness is formed on the substrate.

Abstract: Disclosed is an electrolysis process which is characterized by carrying out the electrolysis of an aqueous alkali metal halide solution while supplying a cathode liquor into a cathode compartment formed between a cation exchange membrane positioned substantially horizontal and a cathode plate of gas-liquid impermeability, with which the membrane is wetted, then a mixed stream of the cathode liquor and cathode gas being removed from the cathode compartment.Also disclosed is an electrolytic cell which is comprised of an upper anode compartment and a lower cathode compartment partitioned by a cation exchange membrane positioned substantially horizontal, said anode compartment having therein substantially horizontal anodes and an anolyte solution inlet and outlet, and said cathode compartment having a cathode plate with gas-liquid impermeability and a cathode liquor inlet and an outlet of a mixed stream of the cathode liquor and cathode gas.

Abstract: Disclosed is an electrolytic process using a horizontal type cation exchange membrane electrolytic cell in which catholyte liquor is supplied into a cathode compartment with initial linear velocity of at least 8 cm/sec and gas content of at most 0.6 at a catholyte liquor outlet. Also disclosed is an electrolytic cell used for the foregoing process. The invention enables not only conversion of a mercury electrolytic cell to a cation exchange membrane electrolytic cell with low cost, but the long-term and stable operation.

Abstract: Disclosed is a vertical type electrolytic cell partitioned by an ion exchange membrane into an anode compartment and a cathode compartment, the cathode compartment being divided by a non-perforated cathode plate into a cathode gas generation room and a cathode gas separation room. Also disclosed is an electrolytic process using the electrolytic cell wherein the catholyte is circulated between the two rooms as a result of a gas lift effect produced by the cathode gas.