Oxygen Scavenger System in a Polyolefin Matrix

摘要

OXYGEN SCAVENGER SYSTEM IN A POLYOLEFIN MATRIX ABsTRACT OF THE DISCLOSURE An oxygen scavenging polyolefin composition and methods of making thereof are described herein. In one approach, the composition includes a continuous non-polar polyolefin matrix having oxygen scavenging domains dispersed therein. The oxygen scavenging domains include an oxidizable polymer, a transition metal catalyst or salt thereof, and a catalytic promoter effective to bind with oxygen passing through the continuous non-polar polyolefin matrix. The oxygen scavenging domains forming a discrete polar region within the continuous non-polar polyolefin matrix. The composition further includes a polymeric compatibilizer having a polar moiety and a non-polar moiety and in amounts effective to uniformly disperse the polar oxygen scavenging domains in the continuous non-polar polyolefin matrix. 0 o N-Methylpyrrolidone-NHPI-Co system -+-NHPVCo C, -4- NHPL/x3 Co c 25 - -- NH-PLVx9 Co 20 -- Co --- x9 Co 0 -I 0 4 21 24 27 45 Time, hrs