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Title:
CONTINUOUS MANUFACTURING METHOD FOR HYGROSCOPIC RESIN POWDER AND POWDER LEVEL DETECTOR USED THEREFOR
Document Type and Number:
WIPO Patent Application WO/2003/004237
Kind Code:
A1
Abstract:
A continuous manufacturing method for hygroscopic resin powder capable of continuously manufacturing, at a high productivity, surface−reformed hygroscopic resin powder in the state of narrow grain size distribution and high physical properties and a powder level detector desirably used for the method, the method comprising a polymerization process, a drying process, a pulverizing process, a classifying process, a surface reforming process, and transfer processes for linking these processes with each other, the transfer processes further comprising at least two hoppers for storing the hygroscopic resin powder, the powder level detector desirably used for the method comprising a float suspended with a suspending wire.

Inventors:
KAJIKAWA KATSUHIRO
NISHIOKA TORU
FUJIMARU HIROTAMA
ISHIZAKI KUNIHIKO
Application Number:
PCT/JP2002/006637
Publication Date:
January 16, 2003
Filing Date:
July 01, 2002
Export Citation:
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Assignee:
NIPPON CATALYTIC CHEM IND (JP)
International Classes:
B29B9/12; B29B9/16; B29B13/02; C08J3/12; G01F23/44; (IPC1-7): B29B9/00; B29B13/00; C08J3/12; G01F23/44; A61F13/15; B65G65/30; G01G11/00
Foreign References:
JP2001096151A2001-04-10
EP1029886A22000-08-23
JP2000038407A2000-02-08
JPH11286611A1999-10-19
JPH11263850A1999-09-28
JPH11240959A1999-09-07
EP0885917A21998-12-23
JPH0641319A1994-02-15
EP0349240A21990-01-03
JP2001147151A2001-05-29
JP2001139149A2001-05-22
JPH11139563A1999-05-25
JPH10197322A1998-07-31
JPH09101194A1997-04-15
JPH0839543A1996-02-13
US5148943A1992-09-22
JPH01305321A1989-12-08
JPS61274225A1986-12-04
JPS5957833A1984-04-03
EP1153656A22001-11-14
EP1130045A22001-09-05
EP1118633A22001-07-25
EP0948997A21999-10-13
EP0507689A21992-10-07
FR2663259A11991-12-20
US5127450A1992-07-07
EP1029886A22000-08-23
EP0885917A21998-12-23
JPH11139563A1999-05-25
EP1118633A22001-07-25
EP0922717A11999-06-16
US4985518A1991-01-15
Other References:
See also references of EP 1426157A4
Attorney, Agent or Firm:
Matsumoto, Takehiko (Hannan-cho 1-chome Abeno-k, Osaka-shi Osaka, JP)
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