Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1994-12-14
1998-06-02
Nold, Charles
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428 358, 428 367, 4285428, 428483, 4289033, 25218824, 25218828, 215 121, B65B 5519
Patent
active
057596530
ABSTRACT:
An oxygen scavenging composition, method of making the same, and multilayer container structures thereof which enable accelerated activation of the oxygen scavenging property and/or barrier layers to prevent depletion of the oxygen scavenging property. In making a container wall, or a precursor thereof such as a preform, a base polymer is used including post-consumer polyethylene terephthalate (PC-PET) and an oxygen scavenger. A resulting multilayer package wall may include an oxygen scavenging core layer and an inner layer of a material having a high oxygen barrier condition prior to product filling, and a second lower oxygen barrier condition after product filling. The inner layer thus allows oxygen entrapped in the container during product filling to be transmitted through the inner layer and absorbed by the core oxygen scavenging layer, in order to increase the product shelf life.
REFERENCES:
patent: 4962164 (1990-10-01), Jabarin et al.
patent: 5021515 (1991-06-01), Cochran et al.
patent: 5034252 (1991-07-01), Nilsson et al.
patent: 5049624 (1991-09-01), Adams et al.
patent: 5077111 (1991-12-01), Collette
patent: 5153038 (1992-10-01), Koyama et al.
patent: 5202052 (1993-04-01), Zenner et al.
patent: 5239016 (1993-08-01), Cochran et al.
patent: 5281360 (1994-01-01), Hong et al.
patent: 5301838 (1994-04-01), Schmidt et al.
patent: 5314987 (1994-05-01), Kim et al.
"Oxbar: The Oxygen Barrier".
"CMB Pioneers New PET Oxygen Barrier," Plastics & Rubber Weekly, Feb. 10, 1990.
"CMB Develops Barrier PET Material," European Chemical News, 19 Feb. 1990.
"PET Blend Offered As Coex Alternative," Modern Plastics International, Feb. 1990.
Koyama et al., "Oxygen Scavenging Technology For Packaging (Oxyguard)," Popular Plastics & Packaging, Annual 1992.
Brockschmidt, "Coextrusion Developments Focus On Barrier Resins," Plastics Technology, Dec. 1987.
Lambert et al., "The Rate Of Absorption Of Oxygen By Ageless.TM.: The Utility Of An Oxygen Scavenger In Sealed Cases," Studies In Conservation 37, 1992, 267-274.
"Design Guidelines For Plastic Bottle Recycling," Association Of Postconsumer Plastic Recyclers.
Collette Wayne N.
Schmidt Steven L.
Continental PET Technologies Inc.
Nold Charles
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