摘要 |
<p>The present invention provides a wall for a package, which wall comprises, or includes a layer comprising, a composition comprising a polymer and having oxygen-scavenging properties, characterised in that the composition scavenges oxygen through the metal-catalysed oxidation of an oxidisable organic component thereof. The oxidisable organic component is preferably itself a polymer, and may be the only polymer in the composition. Preferred compositions include a blend of 96% polyethylene terephthalate and 4% poly (m-xylyleneadipamide) containing 200 ppm cobalt as catalyst, with good permeance-versus-time performance (3) when formed into a bottle.</p> |
申请人 |
MB GROUP PLC, READING, BERKSHIRE, GB |
发明人 |
COCHRAN, MICHAEL ALEXANDER, WANTAGE OXFORDSHIRE OX12 0NU, GB;FOLLAND, RICKWORTH, FARINGDON OXFORDSHIRE SN7 7TL, GB;NICHOLAS, JAMES WILLIAM, WANTAGE OXFORDSHIRE OX12 9XR, GB;ROBINSON, MELVIN EDWARD RIDDELL, WANTAGE OXFORDSHIRE OX12 0NQ, GB |