PURPOSE:To enable the nature of an electrode plate to be established from the relationship between the amount of lead carbonate contained in the electrode plate and the intensity of the electrode plate by manufacturing before leaving a paste plate and normal electrode plates at the same time, and measuring the folding strength of the paste plate which is drawn from a sample plate immediately befo...

PURPOSE:To enable the natures of unformed electrode plates seen during the time when they are left to be stably judged securely by coating the opening part of a sample plate in which a paste plate is molded, with a heat-proof acid-proof synthetic resin, and judging the changes in the nature of packed electrode plates according to the folding strength of the paste plate. CONSTITUTION:A sample plat...

PURPOSE:To enable the nature of electrode plates to be judged from the relationship between the amount of lead carbonate contained in the electrode plate and the folding strength of the electrode plate by making a small paste plate, leaving the paste plate and said electrode plates at the same time, the measuring the folding strength of the paste plate immediately before said electrode plates are ...

PURPOSE:To increase the dispersibilities of barium sulfate and lignin by adding barium sulfate and lignin to purified water, stirring and mixing the mixture, and kneading lead powder into the mixture. CONSTITUTION:At fist, 50-100% of purified water is combined with 0.3-5.0% of barium sulfate and 0.3-2.0% of lignin, and the mixture is stirred and mixed. Next, after lead powder is added to thus obta...

An antifouling coating composition for boat hulls, etc. based on a combination of fluoro-carbon polymers especially polytetrafluoroethylene and antifouling agent, especially copper metal and Cu2O, as active constituents. Additional binders and fillers can be included.

An antifouling coating composition for boat hulls, etc. based on a combination of fluoro-carbon polymers especially polytetrafluoroethylene and antifouling agent, especially copper metal and Cu2O, as active constituents. Additional binders and fillers can be included.

PURPOSE:To improve a quality of a tyre through vulcanization of it under a normally constant condition, by a method wherein, in a mold vulcanizer, if a mold temperature at a starting time of vulcanization is lower than a set value, a vulcanizing time is regulated by instructing an extension of a vulcanizing time corresponding to a temperature difference. CONSTITUTION:A tyre 7 is sealed between top...

The mould segment e.g. for a tyre vulcanising mould is cast from a metal having a relatively low melting point, such as an aluminium alloy, and has integrally cast lamellae (12, 13) which are made from a metal having a relatively high melting point, such as sheet steel, and which pass through the wall of the mould segment (S). The inner surface (4) and the outer surface (3) of the mould segment (S...

A coating composition for polycarbonate surfaces comprising a mixture of: (A) 86% to 98% by weight of hydroxyl-group-containing copolymers with copolymerized units of: (a) 20% to 32% by weight of at least one aromatic vinyl monomer, (b) 8% to 18% by weight of at least one hydroxylalkyl ester of acrylic or methacrylic acid containing from 2 to 12 carbon atoms in the alkyl group, and (c) 50% to 70% ...

A process is provided for making a solution of cellulose in an amine oxide. In accordance with one aspect of the invention, a solid precursor of a solution of cellulose in a tertiary amine oxide in the form of a chip or the like which has been prepared by suspending cellulose in a mixture containing a tertiary amine oxide and water is heated in the barrel of an extruder to dissolve the cellulose, ...

In a gas discharge display panel, a plurality of gas discharge cells are arranged between a plurality of display anode conductors and a cathode conductor. The cathode conductor is formed of hollow cathodes having cavities with apertures facing the display anode conductors. The hollow cathodes widen from the apertures on the side remote from the display anode conductors up to a transverse dimension...

A method of facilitating the incorporation of hydroxypropyl methyl cellulose (HPMC) into a liquid formulation containing water which comprises: 1. forming a liquid premix of hydroxypropyl methyl cellulose dispersed in an aqueous-free organic liquid medium in which it does not swell or dissolve, selected from the group consisting of liquified nonionic surfactants, fatty acids, anionic surfactants a...

A process for producing a multi-layer coating upon a substrate surface, in which there is first applied to the surface a pigmented basecoat composition and then there is applied to the basecoat film a transparent topcoat composition; characterized in that the basecoat composition is based upon a dispersion in an aqueous medium of crosslinked polymer microparticles which have a diameter of 0.01-10 ...

PURPOSE:To improve the surface properties such as surface hardness, chemical resistance, etc. of a plastic article, by carrying out the plasma polymerization of a gaseous mixture of a specific silicon compound and oxygen on the surface of the article. CONSTITUTION:A coating film containing a silicon compound is formed on the surface of a plastic article such as polymethyl methacrylate, polystyrene...

PURPOSE:To form a protecting film having excellent surface hardness and chemical resistance on the surface of a plastic, by carrying out the plasma polymerization of an aromatic compound to apply an undercoating to the surface, and then carrying out the plasma polymerization of a silicon compound to apply a top-coating thereto. CONSTITUTION:A protecting film is formed on the surface of a plastic (...

PURPOSE:To obtain a molded work which is excellent in appearance, by a method wherein a polyurethane reactive composition, prepared so that it has a short cream time, is injected by a high-pressure injection into a mold which has a porous material additionally attached to an inner suface thereof and has a venting hole formed in a given position. CONSTITUTION:A polyurethane reactive composition, ha...

The specification describes a method and means for controlling operation of a fluidized bed combustion apparatus. In the proposals embodied in the invention the supply of combustion air fed to the fluidized bed is augmented by inert gas (preferably waste gas taken from a low temperature outlet of the apparatus) and the proportion of inert gas used to augment the combustion supporting air is variab...

PURPOSE:To operate a compression and expansion type noise reducing device even when a voltage is low, by using an inverting amplifier which has high efficiency of utilization of a power source. CONSTITUTION:When an input signal Vin is high, the base voltage of a transistor (TR) Q11 rises and the TRQ11 turns on. Then, a current flows from a power source line to TRs Q11 and Q14, a constant current c...

PURPOSE:To lower the voltage range wherein a compression/expansion type noise reducing device operates, by allowing transistors (TR) in a differential couple to perform amplitude limiting operation. CONSTITUTION:When the output signal of an amplifier is positive, a TRQ1 turns off and a TRQ2 turns on. Then, the current flowing through the TRQ1 decreases and the current flowing through the TRQ2 incr...