Nitrogen blow molding to enhance oxygen scavenger shelf-life

Details Nitrogen blow molding to enhance oxygen scavenger shelf-life Nitrogen blow molding to enhance oxygen scavenger shelf-life

2005-05-17

2005-05-17

McDowell, Suzanne E. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Utilizing special inert gaseous atmosphere or flushing mold...

C264S512000, C264S513000, C264S523000

Reexamination Certificate

active

06893588

ABSTRACT:
A method of manufacturing a container for containing an oxygen sensitive products from a heated plastic by blow molding the plastic with a compressed gas that is inert to the oxygen sensitive product. The heated plastic may contain an oxygen barrier layer or an oxygen scavenging component. The gas is also inert to the oxygen scavenging component, if it is present. An exemplary compressed gas is nitrogen gas. The blow molding may be extrusion blow molding, injection blow molding or stretch blow molding. The plastic may be, for example, a polyolefin, a nylon, or a polyester.

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patent: 57-185119 (1982-11-01), None

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