Oxygen-absorbing package, composition and method of formulation

Details Oxygen-absorbing package, composition and method of formulation Oxygen-absorbing package, composition and method of formulation

1989-02-17

1991-02-12

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Silicon containing

502 60, 502415, 502417, 25218828, 426395, B01J 2010, B01J 2018, B01J 2020

Patent

active

049924109

ABSTRACT:
An oxygen-absorbing composition which will not absorb appreciable amounts of oxygen from the atmosphere during formulation and handling including a mixture of an oxygen-attracting component A, an aqueous electrolyte-impregnated component B, and a water-attracting component C which has a greater affinity for water from the electrolyte-impregnated component B than the oxygen-attracting component A and a greater affinity for water vapor from the atmosphere than the oxygen-attracting component so that the aqueous electrolyte from component B cannot appreciably react with the oxygen-attracting component A to absorb oxygen from the atmosphere during the time that water-attracting component C attracts water from component B and attracts water vapor from the atmosphere. A packet with a window therein for viewing the composition to determine whether, by change of color, it has absorbed oxygen. A method of formulating an oxygen-absorbing composition described above wherein the components A, B and C are mixed in the atmosphere shortly before packaging.

REFERENCES:
patent: 1821388 (1924-09-01), Maude et al.
patent: 3370915 (1968-02-01), Sperberg
patent: 4127503 (1978-11-01), Yoshikawa et al.
patent: 4166807 (1979-09-01), Komatsu et al.
patent: 4192773 (1980-03-01), Yoshikawa et al.
patent: 4230595 (1980-10-01), Yamaji et al.
patent: 4406813 (1983-09-01), Fujishima et al.

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