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1. (WO2018182824) DUAL OXYGEN-SCAVENGING COMPOSITIONS REQUIRING NO INDUCTION PERIOD

Pub. No.:    WO/2018/182824    International Application No.:    PCT/US2018/014226
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Jan 19 00:59:59 CET 2018
IPC: C08L 67/02
B65D 81/26
Applicants: GRAHAM PACKAGING COMPANY, L.P.
Inventors: AKKAPEDDI, Murali, K.
LYNCH, Brian, A.
Title: DUAL OXYGEN-SCAVENGING COMPOSITIONS REQUIRING NO INDUCTION PERIOD
Abstract:
A composition comprising: a polyester base polymer; a blend of two distinct polyether-based oxygen scavenging additives, OS1 and OS2, wherein each of OS1 and OS2 is selected from the group consisting of a polyether diol, an ester end-capped derivative of a polyether diol, a polyether-polyester block copolymer, and an ether end-capped derivative of a polyetherdiol, wherein OS1 has a molecular weight of from 10,000 to 100,000 and OS2 has a molecular weight of from 200 to 5,000; and a transition metal catalyst.