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Polyphenyl ether resin packaging method

A technology of polyphenylene ether resin and packaging method, which is applied in the directions of packaging, packaging protection, transportation and packaging, etc., which can solve the problems of color tone change and achieve the effect of inhibiting color tone change and preventing adhesion

Inactive Publication Date: 2017-09-26
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, when the above-mentioned dried polyphenylene ether resin is heat-processed, there is a problem that color tone changes easily

Method used

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  • Polyphenyl ether resin packaging method
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Examples

Experimental program
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Effect test

Embodiment 1

[0092]As the dryer, the following 10-liter jacketed SUS dryer was used: a 10-liter conical belt dryer (RM-10D manufactured by Okawara Seisakusho Co., Ltd.) was used, and a discharge valve for sampling was installed at the bottom of the dryer. A temperature adjustment device is installed on the side of the dryer, a raw material input port and a nitrogen inlet are installed on the upper part of the dryer, and a bag filter is installed in the exhaust line. An oxygen concentration meter was installed at the gas outlet of the dryer.

[0093] Using a part of polyphenylene ether resin (manufactured by Asahi Kasei Chemical Co., Ltd., S201A), measurement was performed according to the method of the above "(1) Reduced viscosity". As a result, the reduced viscosity of the polyphenylene ether resin was 0.511 dL / g. Similarly, the measurement was performed according to the method of "(2) color rendering index" above, and the color rendering index of the polyphenylene ether resin was 0.40. ...

Embodiment 2

[0099] The polyphenylene ether resin was packaged in the same manner as in Example 1, except that the oxygen concentration of the dryer exhaust gas was adjusted to 1%, and the oxygen concentration inside the packaging bag immediately before packaging was adjusted to 1%. The details and results of Example 2 are shown in Table 1.

Embodiment 3

[0101] The polyphenylene ether resin was packaged in the same manner as in Example 1, except that the oxygen concentration of the dryer exhaust gas was adjusted to 2%, and the oxygen concentration inside the packaging bag immediately before packaging was adjusted to 2%. The details and results of Example 3 are shown in Table 1.

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Abstract

The present invention provides a method for packaging polyphenylene ether resin which is capable of preventing adhesion of a polyphenylene ether resin while suppressing a change in color tone of a polyphenylene ether resin after packaging. A method for packaging a polyphenylene ether resin, comprising the steps: filling an inside of the packaging bag with an inert gas, adjusting the oxygen concentration inside the bag to 0 to 5%, and polyphenylene ether having a temperature of 90 DEG C or lower The resin is filled into the above-mentioned bag.

Description

technical field [0001] The invention relates to a packaging method of polyphenylene ether resin. Background technique [0002] Polyphenylene ether resins are excellent in electrical insulation, heat resistance, hydrolysis resistance, and flame retardancy, and thus are used as raw materials in a wide range of fields such as home appliances, OA equipment, and automobile parts. [0003] Polyphenylene ether resin is produced by oxidative polymerization of phenolic compounds. After separating polyphenylene ether resin from the polymerization solution, the color of the dried polyphenylene ether resin may change over time. Regarding the dry polyphenylene ether resin Various methods are disclosed for suppressing color tone changes. For example, Patent Document 1 discloses a method of loading 2,6-xylenol (phenolic compound) into a shipping container under positive pressure of a non-oxidizing gas in order to prevent oxidative discoloration of 2,6-xylenol (phenolic compound). Phenol ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08K3/02B65B55/00
CPCB65B55/00C08K3/02C08L71/12
Inventor 新藤由幸
Owner ASAHI KASEI KK
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