초록 ▼

An article of manufacture includes an oxygen scavenger and poly(lactic acid). The article can be in the form of a film, coating, gasket, liner, insert, sealant, or fibrous matte. A film includes at least one layer including an oxygen scavenger, and at least one layer including poly(lactic acid). A p

An article of manufacture includes an oxygen scavenger and poly(lactic acid). The article can be in the form of a film, coating, gasket, liner, insert, sealant, or fibrous matte. A film includes at least one layer including an oxygen scavenger, and at least one layer including poly(lactic acid). A package can be made from the film for enclosing an oxygen-sensitive artice such as food. The poly(lactic acid) blocks the migration of odor causing byproducts of the oxygen scavenging process. A method includes providing a film including at least one layer including an oxygen scavenger; and at least one layer including the poly(lactic acid); and exposing the film to actinic radiation. A method for reducing migration of organoleptically significant compounds is also disclosed.

대표청구항 ▼

1. A film comprising an oxygen scavenger and poly(lactic acid), wherein the oxygen scavenger comprises a material selected from the group consisting of:i) oxidizable compound and a transition metal catalyst, ii) ethylenically unsaturated hydrocarbon and a transition metal catalyst, iii) ascorbate, i

1. A film comprising an oxygen scavenger and poly(lactic acid), wherein the oxygen scavenger comprises a material selected from the group consisting of:i) oxidizable compound and a transition metal catalyst, ii) ethylenically unsaturated hydrocarbon and a transition metal catalyst, iii) ascorbate, iv) isoascorbate, v) sulfite, vi) ascorbate with a transition metal catalyst, the catalyst comprising a simple metal or salt, or a compound, complex or chelate of the transition metal, vii) a transition metal complex or chelate of a polycarboxylic acid, salicylic acid, or polyamine, and viii) tannin. 2. The film of claim 1 wherein the film comprises a layer comprising an oxygen scavenger and poly(lactic acid).3. The film of claim 1 further comprising an oxygen barrier layer.4. The film of claim 1 further comprising an abuse resistant layer.5. The film of claim 1 further comprising a heat sealable layer.6. The film of claim 1 wherein the film is cross-linked.7. The film of claim 1 wherein the film is oriented.8. The film of claim 1 wherein the film is heat shrinkable.9. The film of claim 1 wherein the poly(lactic acid) is blended with a polymer selected from the group consisting of a polymer derived from alkyl acrylate monomer, and a polymer derived from vinyl acetate monomer.10. The film of claim 1 wherein the film comprises:a) a layer comprising an oxygen scavenger; and b) a layer comprising poly(lactic acid). 11. The film of claim 10 wherein the layer comprising poly(lactic acid) has an oxygen permeability of greater than 5,000 cc-mil per sq. meter per day per atmosphere at 25° C.12. A polymeric functional barrier coating on an oxygen scavenging lacquer, comprising an oxygen scavenger and poly(lactic acid) wherein the oxygen scavenger comprises a material selected from the group consisting of:i) oxidizable compound and a transition metal catalyst, ii) ethylenically unsaturated hydrocarbon and a transition metal catalyst, iii) ascorbate, iv) isoascorbate, v) sulfite, vi) ascorbate with a transition metal catalyst, the catalyst comprising a simple metal or salt, or a compound, complex or chelate of the transition metal, vii) a transition metal complex or chelate of a polycarboxylic acid, salicylic acid, or polyamine, and viii) tannin. 13. A gasket comprising an oxygen scavenger and poly(lactic acid), wherein the oxygen scavenger comprises a material selected from the group consisting of:i) oxidizable compound and a transition metal catalyst, ii) ethylenically unsaturated hydrocarbon and a transition metal catalyst, iii) ascorbate, iv) isoascorbate, v) sulfite, vi) ascorbate with a transition metal catalyst, the catalyst comprising a simple metal or salt, or a compound, complex or chelate of the transition metal, vii) a transition metal complex or chelate of a polycarboxylic acid, salicylic acid, or polyamine, and viii) tannin. 14. A package comprising:a) an oxygen sensitive article; and b) a container into which the oxygen sensitive article is disposed, the container comprising i) a layer comprising an oxygen scavenger, wherein the oxygen scavenger comprises a material selected from the group consisting of: (a) oxidizable compound and a transition metal catalyst. (b) ethylenically unsaturated hydrocarbon and a transition metal catalyst, (c) ascorbate, (d) isoascorbate, (e) sulfite (f) ascorbate with a transition metal catalyst, the catalyst comprising a simple metal or salt, or a compound, complex or chelate of the transition metal, (g) a transition metal complex or chelate of a polycarboxylic acid, salicylic acid, or polyamine, and (h) tannin, and ii) a layer comprising poly(lactic acid).