As iron-based oxygen scavenger SHELFPLUS® O2 2710 (ALBIS
PLASTIC GmbH, Hamburg, Germany) was selected due to its
compatibility with PP and its commercial availability and relevance.
The scavenger consists of iron particles dispersed in a polypropylene
matrix. Information about further components, such as
compatibilizers and salts, as well as the exact amount of iron are
not available to the authors. The material has a density of 1.440 g/
cm3 and a recommended processing temperature range between
200 and 260 C, depending on the applied mechanical stress. The
technology for the oxygen scavenger SHELFPLUS® O2 was formerly
owned by BP Amoco and Ciba Specialty Chemicals [64,65].