Title:
金属コロイド溶液
Document Type and Number:
Japanese Patent JP4771366
Kind Code:
B2
Abstract:
A colloid solution that exhibits storage stability and pH stability, being useful as viral substitute particles for use in an integrity test for virus removal membrane. In particular, a metal colloid solution characterized in that it comprises metal particles or metal compound particles of 1 to 100 nm average diameter, a water soluble high-molecular-weight dispersant having an N group and water and/or a water soluble organic solvent, the metal colloid solution being stable for a prolonged period of time and being stable in at least pH values ranging from 4 to 11.
Inventors:
Tomoko Hongo
Naoko Hamasaki
Shoichi Ide
Fumihiko Yamaguchi
Kubosaki Mitsunori
Naoko Hamasaki
Shoichi Ide
Fumihiko Yamaguchi
Kubosaki Mitsunori
Application Number:
JP2005511856A
Publication Date:
September 14, 2011
Filing Date:
July 16, 2004
Export Citation:
Assignee:
Asahi Kasei Medical Co., Ltd.
International Classes:
B22F9/00; A61K33/24; A61K33/242; A61K33/243; A61K45/06; B01D65/10; B01J13/00; B22F9/24; C09K23/52; G01N15/08; C09K23/00
Domestic Patent References:
| JP2003193119A | 2003-07-09 | |||
| JP2002102679A | 2002-04-09 | |||
| JP2002060805A | 2002-02-28 |
Attorney, Agent or Firm:
Yoshio Ishii
Kyoko Yoshimi
Sanae Goto
Kiyoshi Fujino
Kiyonori Fujino
Kyoko Yoshimi
Sanae Goto
Kiyoshi Fujino
Kiyonori Fujino