US 6,887,541 B2Granted

Insulated packaging material and pouch formed thereof

AssigneeE. I. Du Pont de Nemours and Company

InventorsThomas E. Benim, Susan G. Chamberlin, Jeffrey A. Chambers, Steven R. Cosentino, Peter R. Hunderup, Ross A. Lee, Susan D. Procaccini, Donna L. Visiolo

Life of this patent

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Abstract

An insulated packaging material includes a thermal insulating layer, which may a fiberfill batt. The batt is laminated to at least one facing layer of film, paper or fabric. The packaging material can be used as a container, such as a pouch. A food-contacting polymer material is applied to the facing layer to form the inner surface of the pouch. The packaging material may be coated on the outer facing layer with a coating material so that it is printable, thus imparting both insulating properties and print capability to the pouch.

Claims19

Dependent claims

An insulated packaging material, comprising:

a sheet of face material formed as a bi-layer film having a first layer and a second layer, wherein said second layer has a lower melting temperature than said first layer;
a polymer sealant layer applied to the first layer of the sheet;
and
a thermal insulating layer comprising one or more materials selected from the group consisting of fiberfill batt, melt blown fibers, knit fabric, woven material, and fleece;
the thermal insulating layer having a thermal resistance in the range of 0.05 to 0.5 CLO (0.0077 to 0.077 m2*K/W) laminated to the second layer of the sheet, to form the packaging material having a thickness in the range of 0.0075 inch (0.0190 cm) to 0.07 inch (0.1778 cm).

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/271,377Filed 15 Oct 2002 · continuation in part
Priority: 11 Apr 2001
Published: US 2003/0003249 A110 Jul 2003
Granted: 3 May 2005
Term ends: Not estimatedThe source records don’t support an estimate.

Classification40 codes

B65D 81/3874
Drinking cups or like containers: formed of different materials, e.g. laminated or foam filling between walls
B65D 23/0878
Sheets or tubes applied around the bottle with or without subsequent folding operations: shrunk on the bottle
B65D 81/3886
Insulating sleeves or jackets for cans, bottles, barrels, etc.: formed of different materials, e.g. laminated or foam filling between walls
G09F 3/02
Labels, tag tickets, or similar identification or indication means ; Seals; Postage or like stamps: forms or constructions

Family

Application09/832,503Parent of this continuation-in-part · filed 11 Apr 2001
US 2003/0129335 A1Pre-grant publication · published 10 Jul 2003
US 2003/0003249 A1Published application
US 7,070,841 B2Related patent
US 6,887,541 B2This patent

From the US filing history. Foreign family members aren’t listed.