Compartmentalized resin pellets for oxygen scavenging

Details Compartmentalized resin pellets for oxygen scavenging Compartmentalized resin pellets for oxygen scavenging

2006-05-03

2009-06-02

Kiliman, Leszek (Department: 1794)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C428S407000, C427S212000, C427S214000, C264S143000, C425S097000

Reexamination Certificate

active

07541091

ABSTRACT:
Disclosed is a process and article to simultaneously thermally treat at least two thermoplastics when one of the thermoplastics is an oxygen inert material and the other is an oxygen sensitive material, and the article also contains a promoter that converts the oxygen sensitive material to an oxygen reactive material when brought in contact with the oxygen sensitive material. The process utilizes the compartmentalized pellet, also known as a zoned pellet, construction wherein the major amount of each component is located within individual compartments or zones of the pellet such that the reactions with compounds in the atmosphere such as oxygen are less than the reaction if the thermoplastics were homogeneously dispersed in the pellet. This is of particular use to oxygen scavenging systems.

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