Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DRUG SOLUTION PURIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/044871
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a drug solution purification method with which it is possible to obtain a drug solution exhibiting excellent impairment suppression performance. The drug solution purification method according to the present invention is for obtaining a drug solution through filtration of a to-be-purified material containing an organic solvent by using two or more types of filters having different pore sizes, wherein P1>P2 is satisfied between a supply pressure P1 of the to-be-purified material applied to a filter Fmax having the largest pore size X1 among the two or more types of filters and a supply pressure P2 of the to-be-purified material applied to a filter Fmin having the smallest pore size X2 among the two or more types of filters.

Inventors:
KAMIMURA TETSUYA (JP)
YOSHIDOME MASAHIRO (JP)
KAWADA YUKIHISA (JP)
Application Number:
PCT/JP2018/031868
Publication Date:
March 07, 2019
Filing Date:
August 29, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJIFILM CORP (JP)
International Classes:
B01D61/58; B01D61/14; B01D61/22; B01D65/02; B01D69/02; B01D71/10; B01D71/32; B01D71/48; B01D71/56; B01D71/64; G03F7/004; G03F7/26
Foreign References:
JP2002099098A2002-04-05
JP2009119415A2009-06-04
JP2015084122A2015-04-30
JP2007025341A2007-02-01
JP2013218308A2013-10-24
JPH05309237A1993-11-22
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Download PDF: