Activated carbon products and their manufacture

Details Activated carbon products and their manufacture Activated carbon products and their manufacture

1985-03-19

1987-04-14

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428253, 428254, 428280, 428281, 428283, 428289, 428408, 428913, 604360, B32B 700

Patent

active

046578080

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.

REFERENCES:
patent: 2847332 (1958-08-01), Ramadanoff
patent: 3847833 (1974-11-01), Bailey et al.
patent: 4242226 (1980-12-01), Siren
patent: 4274979 (1981-06-01), Simpson
patent: 4409125 (1983-10-01), Nishino et al.

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