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JP54109939 |
PURPOSE: To obtain an aromatic carboxylic acid of high purity, by oxidizing an alkylaromtic compound in the liquid phase in the presence of a heavy metal and a bromine compounds as catalysts in a lower aliphatic carboxylic acid as a solv...
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JP54099264 |
PURPOSE: To enable quantitative and continuous dilution to be made by sucking chemical liquids into diluting pressure liquid through more than two suction holes provided on a portion of the side wall of the differential pressure pipe pas...
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JP54044271 |
PURPOSE: To avoid the decreases of the polymerization speed of contents or the decreases of quality and to efficiently produce polymer of high quality by selecting the location of an outlet nozzle according to the revolving velocity of t...
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JP54039371 |
PURPOSE: To accomplish mixing and neutralization of an acidic awaste water and a basic waste water without precipitation at the mixing point through a pH control to around 7 following decarboxylation after combination of the flow of the ...
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JP53133583 |
PURPOSE: To increase greatly the rate of catalystic reaction using basic material in a soln., by addn. of new type synthetic double layer membrane which has cationic, hydrophilic groups at the surface.
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JP53121087 |
PURPOSE: To control the preliminary polymerization reaction accurately with a simple device, by detecting the viscosity change of reactants with power values supplied to the agitating motor.
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JP53088093 |
PURPOSE: To produce a colorless nylon 66 continuously with simplified process and apparatus, by prepolymerizing the monomer in a prepolymerization reactor, and transferring the prepolymer to a post-polymerization reactor without releasin...
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JP53065392 |
PURPOSE: To prepare a polyester under more stabilized condition and in higher efficiency by effectively capturing sticky materials such as monomer, oligomer, polymer residue, etc. by perpendicularly placing a pipe having a concave-convex...
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JP53047060 |
PURPOSE: To provide a device for mixing a slurry with coal and catalysts in a reaction chamber, which device rationally uses a plurality of circulating paths to stir liquid matter in a tank substantially up and down thereby to make the w...
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JP53045766 |
PURPOSE: To provide a mixing apparatus used in mixing slurries and the like in a reactor added with coal, a catalyst and the like, which is capable of inhibiting the absorption of air bubbles into the circulation passages without impairi...
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JP53036583 |
PURPOSE: A process of polymerization in which the viscosity of the system increases seeply as the reaction proceeds, comprising the following sequential steps: the prepolymerization step to convert 5-50% of monomers to polymers, the poly...
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JP52147692 |
PURPOSE: The use of a polumerizer equipped with two shafts having 8 -shaped blades thereon in the last polymerization step minimizes the dead space in the polymetizer and provides extremely high-vicosity polyethylene terephthalate.
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JP52134698 |
PURPOSE: An apparatus for polycondensation which is designed to keep the residence time of the reaction liquid constant and prevent the degradation of product quality with the help of agitating blades which are attached to the shaft radi...
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JP52109582 |
PURPOSE: Process and apparatus for transfer polymerization wherein monomers are polymerized by the use of an apparatus equipped with plural polymerization chambers having communicating vessel whose position is designed to be adjusted by ...
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JP52039582 |
PURPOSE: Horizontal continuous reaction vessel, especially suitable for continuous reaction of viscous substance, preventing the deterioration of quality, such as the lowering of polymerization degree etc., causing nearly no difference o...
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JP52030788 |
PURPOSE: Equipment for continuous reaction of viscous substances such as synthetic linear polymers, e.g. polyethylene terephthalate.
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JP52019601 |
PURPOSE: Apparatus for continuous esterification comprisising a series of reactors in which the final one is a tubular or tower reactor.
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JP52012296 |
PURPOSE: To produce a polyester of uniform quality with the help of agitating blades of a special shape.
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JP52003679 |
PURPOSE: To purify an α-olefin polymer by the use of a tower type counter current washing apparatus equipped with inclined partitions, etc. which divide the interior in order to prevent back-mixing and adhesion of the polymer.
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JP51151859 |
PURPOSE: To provide a device for providing a constitutional body of fluid path so that the mixing of a fluid is performed effectively and also the fluid is touchable efficiently on the surface of the constitutional body.
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JP51125665 |
PURPOSE: A fluid contact arrangement built-in with a movable and adjustable dispersing board,suitable for performing efficient fluid contacting in an extremely short time.
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JP51125481 |
PURPOSE: Continuous production of stabilized reactive copolymers having glycidyl group,characterized in removing the adduct of monomer and chain transfer agent from the circulating material.
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JP51124857 |
PURPOSE: To provide easy continuous kneading and mixing device for powder and liquid materials.
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JP51122191 |
PURPOSE: A horizontal continuous condensation polymerisation vessel for polyesters having a discharging screw exposinh its end above the molten resin, thus eleminating the stagnation of the resin.
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