Patent ID: 7078100

Claim:
A film comprising at least one layer, the layer comprising an oxygen scavenger composition comprising a condensation polymer and an oxygen scavenging catalytic amount of a transition metal salt, compound or complex, wherein said polymer comprises mer units derived from: (A) at least one or a mixture of substituted alicyclic compounds having non-aromatic, ethylenic functionality according to the following representation: wherein A, B, C 1 , C 2 , C 3 , C 4 each independently represents hydrogen or a C q H 2q+1 hydrocarbyl group with q being an integer of from 0 to 20, provided that either A or B and at least one of C 1 , C 2 , C 3 , C 4 are hydrogen atoms and each carbon atom of the alicyclic ring is fully substituted by hydrogen, hydrocarbyl, X and/or Y group(s) or mixtures thereof to fill its valence state; X and Y each independently represents —(CH 2 ) n —C═O)-D with n being an integer in the range from 0 to 20 and D being selected from a halide atom or an OR group wherein R is hydrogen atom or a C 1 –C 12 alkyl group, or X and Y together represent —(CH 2 ) n —C═O) x -D with x being 2, n being an integer in the range from 0 to 20 and D is oxygen atom; and Z representing a —(C t H 2t )-hydrocarbylene group with t being an integer in the range from 1–4; (B) at least one or a mixture of difunctional hydrocarbon compounds according to the following representation: G-R′-G wherein R′ represents a C 5 or greater hydrocarbon group selected from alkylene, cycloalkylene or arylene group, and each G represents a hydroxyl or an amino group; (C) from 300 to 15,000 parts per million based on the total of (A), (B), (C) and (D) of at least one or a mixture of polyfunctional hydrocarbon compounds according to the following representation: J-R″(-J) z wherein R″ represents a C 2 –C 20 hydrocarbon group selected from alkylene, cycloalkylene, arylene, alkarylene or aralkylene groups or mixtures thereof; J represents a functional group selected from —OH, —NH 2 , —N═C═O and —(CH 2 ) n —C═O)-D with n being an integer in the range from 0 to 20 and D being selected from a halide atom or an OR′″ group, wherein R′″ is an —H, or C 1 –C 12 alkyl group, or two J groups together represents —(CH 2 ) n —C═O) x -D with n being an integer of from 0 to 20, D being an oxygen atom and x being 2; z is an integer of from 2 to 5; and (D) from 1 to 20 mole percent of the total of (A), (B), (C) and (D) of at least one or a mixture of monomer compounds selected from isophthalic acid, terephthalic acid, tetrahydroisophthalic acid, tetrahydroterephthalic acid, hydrogenated isophthalic acid, hydrogenated terephthalic acid, C 1 –C 12 alkyl esters thereof, anhydride derivatives thereof, and hydrocarbyl derivatives thereof and lower C 1 –C 5 glycol ester derivatives thereof; said X and Y of (A), G of (B) J of (C) and functional groups of (D) are in amounts that provide a molar ratio of carboxylic acid, acid ester, acid halide and isocyano groups to hydroxyl and amino groups of from 0.9 to 1.1:1.