초록 ▼

An article of manufacture includes an oxygen scavenger and an amorphous silica. The article can be in the form of e.g. a film or sealing compound. A package can be made from the article for containing an oxygen-sensitive article such as food. The amorphous silica reduces migration of odor causing by

An article of manufacture includes an oxygen scavenger and an amorphous silica. The article can be in the form of e.g. a film or sealing compound. A package can be made from the article for containing an oxygen-sensitive article such as food. The amorphous silica reduces migration of odor causing by-products of the oxygen scavenging process. A method of making an article of manufacture having reduced migration of by-products of an oxygen scavenging reaction includes providing an article including an oxygen scavenger and an amorphous silica; and exposing the article to actinic radiation.

대표청구항 ▼

1. 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

1. 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 μm, and (iii) a surface area of greater than 200 m2/gram.