초록 ▼

An ovenable paper container containing an inner liner, an outer liner, and an intermediate or corrugated paper layer positioned between the inner liner and the outer liner. The ovenable paper container can be used to heat and/or cook food and then be used as a serving container without the danger of

An ovenable paper container containing an inner liner, an outer liner, and an intermediate or corrugated paper layer positioned between the inner liner and the outer liner. The ovenable paper container can be used to heat and/or cook food and then be used as a serving container without the danger of causing burns.

대표청구항 ▼

1. An ovenable container that can be exposed to temperatures of about 200° F. to about 600° F. comprising an inner liner, an outer liner and a corrugated paper layer positioned between said inner and outer liners; said single corrugated paper layer formed of a plurality of flutes; said outer liner h

1. An ovenable container that can be exposed to temperatures of about 200° F. to about 600° F. comprising an inner liner, an outer liner and a corrugated paper layer positioned between said inner and outer liners; said single corrugated paper layer formed of a plurality of flutes; said outer liner having an upper and lower surface, said outer liner having a weight of about 10 to about 100 pounds per thousand square feet, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner having a weight of about 20 to about 150 pounds per thousand square feet, said inner liner is formed of a base portion and a rim, said rim connected to and fully encircling said base portion, said base portion generally planar, said rim extending upwardly from a peripheral edge of said base portion, and wherein an upper surface of said rim and an upper surface of said base portion, and said connection between said rim and said base portion are absent a seam, and wherein said upper surface of said rim and said base portion are designed to engage a food product that is placed on said ovenable container; said corrugated paper layer having a weight of about 1 to about 100 pounds per thousand square feet, said corrugated paper layer at least partially connected to said upper surface of said outer liner and to said lower surface of said inner liner by an adhesive; said inner liner including a plurality of openings that fully pass through said inner liner, a majority of said openings do not fully pass through said outer liner, said openings designed to allow a liquid to pass through said openings in said inner liner and result in the liquid being entrapped between said inner liner and said outer liner. 2. The ovenable container as defined in claim 1, wherein said upper surface of said inner liner is embossed to allow air to circulate underneath food positioned on said upper surface of said inner liner during heating of the food. 3. The ovenable container as defined in claim 1, wherein said outer liner and said corrugated paper layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated paper layer connected to and encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion. 4. The ovenable container as defined in claim 2, wherein said outer liner and said corrugated paper layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated paper layer connected to and encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion. 5. The ovenable container as defined in claim 1, wherein said inner liner has a weight that is greater than a weight of said corrugated layer, said weight of said inner liner greater than a weight of said outer liner. 6. The ovenable container as defined in claim 4, wherein said inner liner has a weight that is greater than a weight of said corrugated layer, said weight of said inner liner greater than a weight of said outer liner. 7. The ovenable container as defined in claim 1, including a polymeric coating, said polymer coating only present on said inner liner, said inner liner includes said polymeric coating on said upper surface of said inner liner, said polymeric coating designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container, said polymeric coating including one or ore polymers selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate and polymethylpentene. 8. The ovenable container as defined in claim 6, wherein said inner liner only includes a polymeric coating on said upper surface of said inner liner, said polymeric coating designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container, said polymeric coating including one or more polymers selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate and polymethylpentene. 9. The ovenable container as defined in claim , wherein said adhesive is only formed of starch, said starch including one or more modified starches selected form the group consisting of hypochloriteoxidized starch, acid-thinned starch, ethylated starch, cross-bonded starch, cationic starch, acetylated starch and starch monophosphates. 10. The ovenable container as defined in claim 8, wherein said adhesive is only formed of starch, said starch including one or more modified starches selected form the group consisting of hypochloriteoxidized starch, acid-thinned starch, ethylated starch, cross-bonded starch, cationic starch, acetylated starch and starch monophosphates. 11. The ovenable container as defined in claim 1, wherein said inner liner only includes a single paper substrate, said corrugated paper layer only includes a single paper layer, said outer liner only includes a single paper layer, said corrugated paper layer only secured to said inner and outer liners by said adhesive. 12. The ovenable container as defined in claim 9, wherein said inner liner only includes a single paper substrate, said corrugated paper layer only includes a single paper layer, said outer liner only includes a single paper layer, said corrugated paper layer only secured to said inner and outer liners by said adhesive. 13. The ovenable container as defined in claim 1, wherein a height of a majority of said flutes located in said rim is less than a height of a majority of said flutes in said base portion of said single corrugated paper layer. 14. The ovenable container as defined in claim 1, including a lid designed to be releasably secured to a peripheral edge of said rim of said inner liner, said lid including curved end edges designed to engage said peripheral edge of said rim of said inner liner. 15. An ovenable container that can be exposed to temperatures of about 200° F. to 600° F. comprising a paper inner liner, a paper outer liner and a single corrugated paper layer positioned between said inner and outer liners and a polymeric coating; said single corrugated paper layer formed of a plurality of flutes; said inner and outer liners formed of a non-corrugated paper substrate; said outer liner having an upper and lower surface, said outer liner having a weight of up to about 100 pounds per thousand square feet, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner having a weight of up to about 150 pounds per thousand square feet, said inner liner is formed of a base portion and a rim, said rim connected to and fully encircling said base portion, said base portion generally planar, said rim extending upwardly from a peripheral edge of said base portion, and wherein an upper surface of said rim and an upper surface of said base portion, and said connection between said rim and said base portion are absent a seam, and wherein said upper surface of said rim and said base portion are designed to engage a food product that is placed on said ovenable container; said polymeric coating only present on said inner liner, said upper surface of said base portion and said rim of said inner liner coated with said polymeric coating, said polymeric coating designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container, said polymeric coating including one or more polymers selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate and polymethylpentene; said single corrugated paper layer having a weight of up to about 100 pounds per thousand square feet, said weight of said inner liner greater than said weight of said outer liner, said weight of said inner liner greater than said weight of said corrugated paper layer, said single corrugated paper layer at least partially connected to said upper surface of said outer liner and to said lower surface of said inner liner by an adhesive that includes starch. 16. The ovenable container as defined in claim 15, wherein said upper surface of said base portion and said rim of said inner liner is embossed to create indentations having a surface that is below a plane of said upper surface of said inner liner, said embossed upper surface allowing air to circulate underneath food positioned in said upper layer of said inner liner during heating of the food. 17. The ovenable container as defined in claim 15, wherein said outer liner and said single corrugated paper layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated paper layer connected to and encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion, said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of about 25°-90°. 18. The ovenable container as defined in claim 16, wherein said outer liner and said single corrugated paper layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated paper layer connected to and encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion, said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of about 25°-90°. 19. The ovenable container as defined in claim 15, wherein said inner liner has a weight of about 50 to about 100 pounds per thousand square feet, said outer liner has a weight of about 10 to about 70 pounds per thousand square feet, said corrugated paper layer has a weight of about 10 to about 70 pounds per thousand square feet. 20. The ovenable container as defined in claim 18, wherein said inner liner has a weight of about 50 to about 100 pounds per thousand square feet, said outer liner has a weight of about 10to about 70 pounds per thousand square feet, said corrugated paper layer has a weight of about 10 to about 70 pounds per thousand square feet. 21. The ovenable container as defined in claim 15, wherein said adhesive is only formed of said starch, said starch including one or more modified starches selected form the group consisting of hypochloriteoxidized starch, acid-thinned starch, ethylated starch, cross-bonded starch, cationic starch, acetylated starch and starch monophosphates. 22. The ovenable container as defined in claim 20, wherein said adhesive is only formed of said starch, said starch including one or more modified starches selected form the group consisting of hypochloriteoxidized starch, acid-thinned starch, ethylated starch, cross-bonded starch, cationic starch, acetylated starch and starch monophosphates. 23. The ovenable container as defined in claim 17, wherein there is no seam between said base portion and said rim of said outer liner and said single corrugated paper layer. 24. The ovenable container as defined in claim 22, wherein there is no seam between said base portion and said rim of said outer liner and said single corrugated paper layer. 25. The ovenable container as defined in claim 15, wherein a height of a majority of said flutes located in said rim is less than a height of a majority of said flutes in said base portion of said single corrugated paper layer. 26. The ovenable container as defined in claim 15, including a lid designed to be releasably secured to a peripheral edge of said rim of said inner liner, said lid including curved end edges designed to engage said peripheral edge of said rim of said inner liner. 27. An ovenable container that can be exposed to temperatures of about 200° F. to about 600° F. consisting of an inner liner, an outer liner, a single corrugated paper layer positioned between said inner and outer liners, and a polymeric coating; said inner and outer liners formed of a non-corrugated paper substrate; said outer liner having an upper and lower surface, said outer liner having a weight of about 10 to about 70 pounds per thousand square feet, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner having a weight of about 50 to about 100 pounds per thousand square feet; said inner liner, said outer liner and said single corrugated paper layer include a base portion and a rim, said rim connected to and fully encircling said base portion, said base portion generally planar, said rim extending upwardly from a peripheral edge of said base portion; an upper surface of said rim an upper surface of said base portion, and said connection between said rim and said base portion of said inner liner are absent a seam; said upper surface of said rim and said base portion of said inner liner are designed to engage a food product that is placed on said ovenable container; said polymeric coating only present on said inner liner and only coated on said upper surface of said rim and base portion of said inner liner, said polymeric coating designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container, said polymeric coating including one or more polymers selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate and polymethylpentene, said polymeric coating applied to said upper surface of said rim and base portion of said inner liner in an amount of about 2 to about 12 pounds per thousand square feet; said single corrugated paper layer having a weight of about 10 to about 70 pounds per thousand square feet, said single corrugated paper layer formed of a plurality of flutes having a flute pattern selected from the group consisting of E flute, F flute and N flute; said weight of said inner liner greater than said weight of said outer liner, said weight of said inner liner greater than said weight of said corrugated paper layer; said single corrugated paper layer at least partially connected to said upper surface of said outer liner and to said lower surface of said inner liner by an adhesive that is only formed of a starch, said starch including one or more modified starches selected form the group consisting of hypochloriteoxidized starch, acid-thinned starch, ethylated starch, cross-bonded starch, cationic starch, acetylated starch and starch monophosphates; said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of about 25°-90°; said inner liner, said outer liner and said single corrugated paper layer that were originally in a generally planar form are thermoformed into said container that has said generally planar base portion and said rim, said inner liner including a plurality of openings that fully pass through said inner liner, a majority of said openings do not fully pass through said outer liner, said openings designed to allow a liquid to pass through said openings in said inner liner and result in the liquid being entrapped between said inner liner and said outer liner. 28. The ovenable container as defined in claim 27,wherein said upper surface of said base portion and said rim of said inner liner is embossed to create indentations having a surface that is below a plane of said upper surface of said inner liner, said embossed upper surface allowing air to circulate underneath food positioned in said upper layer of said inner liner during heating of the food, a plurality of indentations include at least one of said openings. 29. The ovenable container as defined in claim 27, wherein a height of a majority of said flutes located in said rim is less than a height of a majority of said flutes in said base portion of said single corrugated paper layer. 30. The ovenable container as defined in claim 27, including a lid designed to be releasably secured to a peripheral edge of said rim of said inner liner, said lid including curved end edges designed to engage said peripheral edge of said rim of said inner liner.