Title:
ポリカーボネート樹脂成形品の製造方法、およびポリカーボネート樹脂成形品
Document Type and Number:
Japanese Patent JP6803302
Kind Code:
B2
Abstract:
To provide a molded article of polycarbonate resin having a good color tone and high transparency, and a production method thereof.SOLUTION: A pellet formed by removing fine powder from a polycarbonate resin powder obtained by an interfacial polymerization, has 5 weight ppm or less of compounds of the formula (A) or 5 weight ppm or less of compounds of the formula B in alkali hydrolysis products. The pellet has a trivial amount of yellow (amber) coloring and high transparency.SELECTED DRAWING: Figure 1
Inventors:
Keiichi Zoda
Yoshihiro Chino
Ken Shimomai
Hisashi Tahara
Yoshihiro Chino
Ken Shimomai
Hisashi Tahara
Application Number:
JP2017142040A
Publication Date:
December 23, 2020
Filing Date:
July 21, 2017
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
C08J3/12; B29B9/10; B29B13/10; B29C45/18; B29C48/025; B29C48/04; B29C48/05; B29C48/255; B29C48/285; B29C48/92; C08G64/40
Domestic Patent References:
| JP200172757A | ||||
| JP922545A |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Kyoei Sugiyama
Taro Ushio
Yasuhito Suzuki
Kyoei Sugiyama
Taro Ushio
Yasuhito Suzuki