Patent ID: 6686006
Filing Date: 2004-02-03
Classification: B32B,B65D,C08K,Y10T

Abstract:
A method of making an article of manufacture comprising:a) providing an article comprising a blend of: i) an oxygen scavenger comprising a material selected from the group consisting of: (a) an oxidizable compound and a transition metal salt, (b) an ethylenically unsaturated hydrocarbon and a transition metal catalyst, (c) an ascorbate, (d) an isoascorbate, (e) a sulfite, (f) an ascorbate and a transition metal catalyst, the catalyst comprising a simple metal or salt, or a compound, complex or chelate of the transition metal, (g) a reduced form of a quinone, a photoreducible dye, or a carbonyl compound which has absorbence in the UV spectrum, and (h) a tannin; and ii) an amorphous silica; and b) exposing the article to actinic radiation; wherein the amorphous silica has: (i) a mean pore diameter of less than 200 Angstroms, (ii) a median particle size of less than 20 &mgr;m, and (iii) a surface area of greater than 200 m2/gram.