Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Aqueous continuous liquid phase and discontinuous phase...
Reexamination Certificate
2004-07-16
2010-06-29
Choi, Ling-Siu (Department: 1796)
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous liquid or supercritical phase: colloid systems;...
Aqueous continuous liquid phase and discontinuous phase...
C516S077000, C516S198000
Reexamination Certificate
active
07745499
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.
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Hamasaki Naoko
Hongo Tomoko
Ide Shoichi
Kubozaki Mitsunori
Yamaguchi Fumihiko
Asahi Kasei Medical Co., Ltd
Choi Ling-Siu
Wang Chun-Cheng
Young & Thompson
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