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Production method and production device for chlorinated vinyl chloride-based resin

A technology of vinyl chloride resin and chlorinated vinyl chloride, applied in chemical instruments and methods, chemical/physical processes, chemical/physical/physical chemical processes, etc. The effect of increasing the amount of

Active Publication Date: 2015-03-04
KANEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, if the thickness of the glass tube is increased, the pressure resistance performance can be improved, but the ultraviolet rays emitted by the mercury lamp will be absorbed by the glass, so there is a problem that the reaction efficiency will decrease.

Method used

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  • Production method and production device for chlorinated vinyl chloride-based resin
  • Production method and production device for chlorinated vinyl chloride-based resin
  • Production method and production device for chlorinated vinyl chloride-based resin

Examples

Experimental program
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Effect test

Embodiment

[0114] 〔Reference example〕

[0115] Here, the effect of using at least one light source selected from the group consisting of ultraviolet LED, organic EL, inorganic EL, and ultraviolet laser instead of using a mercury lamp (mercury lamp) as a light source will be described by way of a reference example. Specifically, it is the effect when ultraviolet LED is used as the light source. In the following reference examples and comparative examples, unless otherwise specified, "part" and "%" mean a weight basis.

reference example 1

[0117]

[0118] Such as Figure 8 As shown, a UV-LED light source unit (manufactured by SENTEC Corporation; model "OX223") was prepared as the ultraviolet LED light source device 100 . The ultraviolet LED light source device 100 has three ultraviolet LED elements 110 (manufactured by Nichia Corporation; product number "NC4U133"; forward current 500 mA, forward voltage 14.9 V) with an emission peak wavelength of 365 nm.

[0119] The emission spectrum of the ultraviolet LED element used in Reference Example 1 is shown in Figure 9 middle. Such as Figure 9 As shown, the wavelength range of the ultraviolet rays irradiated by the ultraviolet LED element 110 is 350nm to 392nm, there is one luminescence peak, and the luminescence peak wavelength is 365nm. As mentioned above, the concept of the wavelength range here refers to the range of wavelengths having a relative luminous intensity of 2% or more relative to the relative luminous intensity at the luminous peak wavelength in ...

reference example 2

[0143]

[0144] Such as Figure 10 As shown, a UV-LED light source unit (manufactured by SENTEC Corporation; model "OX224") was prepared as the ultraviolet LED light source device 100a. The ultraviolet LED light source device 100a has 12 ultraviolet LED elements 110a (manufactured by Nichia Chemical Industry Co., Ltd.; product number "NC4U133"; forward current 500mA, forward voltage 14.9V), which irradiate ultraviolet light with a peak emission wavelength of 365nm. The emission spectrum of the ultraviolet LED element used in Reference Example 2 is shown in Figure 9 middle.

[0145] Such as Figure 10 As shown, the ultraviolet LED light source device 100a is set on the support body 200a, and then they are all inserted into a transparent glass cylindrical container 300a (PYREX (registered trademark)) with an inner diameter of 74 mm, a height of 600 mm, and a thickness of 7 mm.

[0146] Such as Figure 11 , Figure 12 As shown, a cylindrical container 300a containing one ...

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Abstract

This production method for a chlorinated vinyl chloride-based resin is provided with: a step in which chlorine is introduced into a suspension of a vinyl chloride-based resin in a first tank; and a step in which the suspension, having had chlorine introduced therein, is transferred from the first tank to a second tank, and irradiated with ultraviolet rays in the second tank. As a result, the chlorine dissolution amount in the suspension of the vinyl chloride-based resin is improved, and the production efficiency of the chlorinated vinyl chloride-based resin is improved.

Description

technical field [0001] This invention relates to the manufacturing method and manufacturing apparatus of a chlorinated vinyl chloride resin, More specifically, it is related with the manufacturing method and manufacturing apparatus of a chlorinated vinyl chloride resin using the photochlorination method. Background technique [0002] The heat-resistant temperature of the chlorinated vinyl chloride resin is higher than that of the vinyl chloride resin due to chlorination. Therefore, chlorinated vinyl chloride resins are used in various fields such as heat-resistant pipes, heat-resistant industrial boards, heat-resistant films, and heat-resistant mats. [0003] In general, chlorinated vinyl chloride-based resins are produced by suspending vinyl chloride-based resin particles in an aqueous medium to obtain an aqueous suspension, and supplying chlorine to the aqueous suspension to make the vinyl chloride-based resin Chlorination occurs. When chlorination is performed by the ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/22C08F14/06
CPCC08L27/24C08F8/22B01J19/127B01J19/18B01J2219/0884C08K5/09C08L9/06C08L91/08B01J19/121B01J19/123C08F14/06C08F2/18B01J2219/1203
Inventor 小原大知田所正稻冈哲男堀内清史
Owner KANEKA CORP
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