Title:
PROCESS FOR PRODUCING POLYTETRAFLUOROETHYLENE-CONTAINING POWDER
Document Type and Number:
Japanese Patent JP3711113
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a process for producing a polytetrafluoroethylene-containing powder having excellent fluidity and good dispersibility into a thermoplastic resin.
SOLUTION: In the process for producing a polytetrafluoroethylene-containing powder by adding a coagulant to an aqueous dispersion containing polytetrafluoroethylene (A) and a thermoplastic polymer (B), coagulating the polytetrafluoroethylene (A) and the thermoplastic polymer (B) present in the aqueous dispersion to form a slurry, then feeding this slurry to a dehydration step by a pump 20 to dehydrate the slurry in the dehydration step, and subsequently drying the dehydrate, the concentration of the solid content in the slurry to be fed to the dehydration step is adjusted to 3-15 mass%.
Inventors:
Kaoru Matsuda
Yumoto
Yumoto
Application Number:
JP2003015243A
Publication Date:
October 26, 2005
Filing Date:
January 23, 2003
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
C08J3/16; C08J3/12; C08L27/18; C08L101/00; (IPC1-7): C08J3/12
Domestic Patent References:
| JP2003002980A |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
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