Activated carbon products and their manufacture
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United States of America Patent
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Jul 16, 1985
Grant Date -
N/A
app pub date -
Sep 13, 1983
filing date -
Sep 13, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An activated carbon product such as a charcoal cloth or felt has, in addition to any activating material, a metal uniformly dispersed therein. The metal may be catalytic or bactericidal, and a particularly preferred product of the invention contains silver and is suitable for use as a surgical dressing. Such products can be produced by a conventional activation procedure using a mixture of halides, even if the further metal halide is substantially insoluble in the impregnation solution used for activation, by incorporating in the solution ammonia and a sequestering agent such as citric acid.
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