Title:
ポリフェニレンエーテル系樹脂成形物の製造方法
Document Type and Number:
Japanese Patent JP5066634
Kind Code:
B2
Abstract:
Provided is a process for producing a pellet that has good color and does not undergo the deterioration in physical properties from a polyphenylene ether resin raw material and a polystyrene resin raw material with high production efficiency. Specifically provided is a process for producing a polyphenylene ether resin molded article (a pellet) by kneading a polyphenylene ether resin and a polystyrene resin with each other in a molten state and carrying out the extrusion molding of the kneaded material. The process is characterized in that 1) the polyphenylene ether resin to be used is a granular material which is produced by compressing a powdery material of a polyphenylene ether resin having a toluene concentration of 0.01-0.5 mass% at a temperature equal to or lower than Tg to solidify the powdery material and, if necessary, grinding a solidified material and which has an average particle diameter of 0.1-10 mm, an apparent density of 0.35-0.7 g/cm3 and a toluene concentration of 0.01-0.5 mass%, 2) the polystyrene resin to be used is a particulate material having an average particle diameter of 1-5 mm and an apparent density of 0.5-0.7 g/cm3, and these materials are fed into an extruder, heated, molten, kneaded and extruded.
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Inventors:
Toshiyuki Tajiri
Application Number:
JP2012524350A
Publication Date:
November 07, 2012
Filing Date:
July 12, 2010
Export Citation:
Assignee:
Mitsubishi Engineering Plastics Co., Ltd.
International Classes:
B29B9/10; B29C48/05; C08L25/04; C08L71/12; B29C48/04
Domestic Patent References:
| JP2008510060A | 2008-04-03 | |||
| JP2008274035A | 2008-11-13 | |||
| JP2004137450A | 2004-05-13 | |||
| JP2002541295A | 2002-12-03 |
Attorney, Agent or Firm:
Kenji Kawabi