Freshness keeping sheet

Details Freshness keeping sheet Freshness keeping sheet

1994-11-22

1995-07-25

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428296, 428297, 428373, 428408, D04H 158

Patent

active

054360676

ABSTRACT:
A freshness keeping sheet comprises:
100 parts by weight of a palladium chloride-carrying activated carbon obtained by activating a carbon material under an atmosphere containing not more than 15% by volume of water vapor and cooling the activated carbon material to not more than 300.degree. C. under the same atmosphere and then permitting the resulting activated carbon to carry 0.1 to 10% by weight of palladium chloride, and 1 to 20 parts by weight of a synthetic fiber having a single fiber diameter of 1 to 30 .mu.m as a binder, said palladium chloride-carrying activated carbon and said synthetic fiber having been mixed and integrally molded into a sheet.
The sheet can rapidly remove thin ethylene from a gas even at low temperatures and is hence excellent as a freshness keeping sheet for refrigerators and vegetables and fruits storing boxes.

REFERENCES:
patent: 4394299 (1983-07-01), Puskas et al.
patent: 4467110 (1984-08-01), Puskas et al.
patent: 4599157 (1986-07-01), Suzuki et al.

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