Container sealing member with oxygen absorbent
First Claim
1. A container sealing member for a container used for preserving an aqueous liquid or semi-liquid material, characterized in that the sealing member is provided with an oxygen absorbent and retainer means to hold said oxygen absorbent, and the absorbent is covered by a film which adheres to the sealing member so that when the sealing member is in use on a container the oxygen absorbent is prevented from contacting of the contents of the container, the film having a plurality of fine openings, and being gas-permeable, but water-impermeable at one atmospheric pressure and wherein the film has a plurality of fine openings in the range of from 0.01 to 45 microns.
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Accused Products
Abstract
A container sealing member for a container used for preserving an aqueous liquid or semi-liquid material is disclosed. Said sealing member is characterized in that some of the space inside the sealing member is filled with an oxygen absorbent and the absorbent is separated from the contents of the container by a film which adheres to the sealing member so as to prevent the oxygen absorbent from contacting the contents of the container, the film having a plurality of fine openings and being gas-permeable but water-impermeable at one atmospheric pressure.
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Citations
6 Claims
- 1. A container sealing member for a container used for preserving an aqueous liquid or semi-liquid material, characterized in that the sealing member is provided with an oxygen absorbent and retainer means to hold said oxygen absorbent, and the absorbent is covered by a film which adheres to the sealing member so that when the sealing member is in use on a container the oxygen absorbent is prevented from contacting of the contents of the container, the film having a plurality of fine openings, and being gas-permeable, but water-impermeable at one atmospheric pressure and wherein the film has a plurality of fine openings in the range of from 0.01 to 45 microns.
Specification