Title:
SILVER FOAM METAL FOR FILTER AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/092845
Kind Code:
A1
Abstract:
This invention provides a process for producing a silver foam metal for a water purifier filter, which produces a cellular foam metal from silver to utilize two advantages of the maximized specific surface area and ultra-lightweight, i.e., two greatest features of the foam metal, whereby, while using a small amount of silver to hold down the price, sterilizing power and antiseptic effect, which are a few times better than that of silver mass, can be attained, and a cellular foam metal produced by this process. A polyurethane product is immersed for a given period of time in a graphite liquid in a thin colloid state prepared by mixing ion exchanged water and graphite at a given mixing ratio. The immersed polyurethane product is then dried and is heated at a temperature of 100 to 250°C for 30 to 90 min to fix the graphite particles onto the polyurethane product. Thereafter, silver plating is carried out in an electroplating tank for rapid plating layer formation. After the plating process, the internal polyurethane product is burned to produce a silver foam metal which is then baked and held at an elevated temperature within an electric furnace for heat treatment.
Inventors:
KIM BYUNG CHANG (KR)
Application Number:
PCT/JP2005/003369
Publication Date:
September 08, 2006
Filing Date:
March 01, 2005
Export Citation:
Assignee:
UNITED POWER CO LTD (JP)
KIM BYUNG CHANG (KR)
KIM BYUNG CHANG (KR)
International Classes:
C22C1/08; A01N25/10; A01N59/16; C02F1/50; C23F1/44; C25D1/00; C25D1/20; (IPC1-7): C22C1/08; A01N25/10; A01N59/16; C02F1/50; C23F1/44; C25D1/00; C25D1/20
Foreign References:
| JPS4710524B1 | ||||
| JPH06285317A | 1994-10-11 |
Attorney, Agent or Firm:
Ikejyo, Shigenobu (3-3 Fushimimachi 3-chom, Chuou-ku Osaka-shi Osaka 44, JP)
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