| US 7,510,098 B2 | ||
| Container employing inner liner and vents for thermal insulation and methods of making same | ||
| Timothy P. Hartjes, Kimberly, Wis. (US); Michael A. Breining, Neenah, Wis. (US); Gerald J. Van Handel, Neenah, Wis. (US); David C. Brown, Kingston, Pa. (US); and Walter Malakhow, Phillipsburg, N.J. (US) | ||
| Assigned to Dixie Consumer Products LLC, Atlanta, Ga. (US) | ||
| Filed on Jun. 29, 2006, as Appl. No. 11/478,075. | ||
| Application 11/478075 is a continuation in part of application No. 11/174434, filed on Jun. 30, 2005. | ||
| Prior Publication US 2007/0029332 A1, Feb. 08, 2007 | ||
| Int. Cl. B65D 81/38 (2006.01) | ||
| U.S. Cl. 220—592.2 | 14 Claims |
| 1. A container comprising:
a) a sidewall comprising a paperboard material, wherein the sidewall has an inner and an outer surface;
b) an activatable shrink film adhered to the inner surface of the sidewall in a pattern that defines an activatable insulation
band, wherein the insulation band is located between upper and lower circumferential bands where the shrink film is secured
to the sidewall; and
c) one or more vents cut into the paperboard material, wherein the vents are located within an inner perimeter of the insulation
band, wherein the vents are of a size and shape suitable to allow ambient air to freely flow through the sidewall during activation
of the shrink film, and wherein the vents define an opening in the sidewall of 0.05 inches or more across, so as to allow
substantially simultaneous activation of the shrink film upon contact of the shrink film with a hot material,
thereby providing a container suitable for providing insulation when the container is filled with a material having a temperature
of from about 130° F. to up to about 212° F., wherein the container is further characterized in that it exhibits a volume
before activation of the shrink film of from about 10 to about 40% greater than a maximum fill volume after activation of
the shrink film.
|