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US 2017/0028382 A1Published application
Oxygen Absorber
AssigneeMultisorb Technologies, Inc.
InventorEileen A. Stetter
Life of this patent
Estimating the term…
Abstract
An oxygen scavenger includes a coated film formed as a sachet and an oxygen scavenger retained in the sachet. The coated film may include a spun-bonded polyolefin base layer coated with a USP-grade low density polyethylene. The resulting sachet is non-porous with a tunable permeability.
Claims21
An oxygen absorber comprising:
- a container comprising a coated flexible film that includes a porous, spun-bonded high density polyolefin base layer and a continuous, permeable low-density polyethylene extrusion coated layer on the base layer, the container including at least one seal formed between first and second opposing edges of the flexible film at which seal the low-density polyethylene coating of a first one of the opposing edges is sealed to the spun-bonded high density polyolefin base layer of the second one of the opposing edge;
- and
- an oxygen absorbing composition disposed in the container.
An oxygen absorber comprising
- a coated flexible film that includes a spun-bonded high density polyolefin base layer and a permeable, non-porous coating layer on the base layer such that the coated flexible film is non-porous;
- at least one seal formed between first and second opposing edges of the flexible film;
- and
- an oxygen absorber encapsulated by the flexible film
1 more element
A method of making an oxygen absorber comprising:
- activating a surface of a spun-bonded polyolefin;
- coating the activated surface of the spun bonded polyolefin with melted low density polyethylene passed through a die;
- sealing a first opposing edge of the coated spun-bonded polyolefin to a second opposing edge, and leaving an opening;
- inserting an oxygen absorbing composition into the opening;
- and
- sealing the sachet.
3 more elements
-23. (canceled)
Dependencies are inferred from the claim text.