CA2448708A1 - Single layer, greaseproof, flexible paper popcorn package - Google Patents
Single layer, greaseproof, flexible paper popcorn package Download PDFInfo
- Publication number
- CA2448708A1 CA2448708A1 CA002448708A CA2448708A CA2448708A1 CA 2448708 A1 CA2448708 A1 CA 2448708A1 CA 002448708 A CA002448708 A CA 002448708A CA 2448708 A CA2448708 A CA 2448708A CA 2448708 A1 CA2448708 A1 CA 2448708A1
- Authority
- CA
- Canada
- Prior art keywords
- bag
- grease
- single layer
- pleats
- preferred form
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Package Specialized In Special Use (AREA)
Abstract
A package for use in microwave ovens is disclosed in its preferred form of a flexible, tubular bag (18) including expandable side walls (26) interconnected between bottom and top walls (20, 22), an openable end (28), and a permanent end wall (24). The side walls (26) include pleats (26a, 26b, 26c, 26d) which are folded in a collapsed condition of the bag (18) and expand due to internal expansion forces generated by the popping of kernels and the creation of water vapor. In a preferred form, the bag (18) is formed from a single layer of flexible, greaseproof paper of highly refined raw fibers of 100% chemical softwood pulp and having a basis weight in the order of 35 lb/ream. The single layer of paper forming the bag (18) provides greaseproof properties in storage, transportation, and cooking throughout the thickness of the paper to prevent wicking and leaking of grease or oil through the single layer. The bag (18) in a preferred form includes grease protectors (42a, 42b, 42c, 42d) located inside of the bag (18) for sealing the bottom and top walls (20, 22) to the pleats (26a, 26b, 26c, 26d) adjacent to their respective connecting edges and in a most preferred form further includes grease protectors (44a, 44b) outside of the bag (18) for sealing the first and second pleats (26a, 26b) together and the third and fourth pleats (26c, 26d) together adjacent to their respective connecting edges. The grease protectors (42a, 42b, 42c, 42d, 44a, 44b) seal the surfaces of the bag (18) just above and adjacent the connecting edges to block the flow of grease to prevent grease wicking or leaking from the bag (18).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83418592A | 1992-02-06 | 1992-02-06 | |
US07/834,185 | 1992-02-06 | ||
CA002129110A CA2129110C (en) | 1992-02-06 | 1993-01-29 | Single layer, greaseproof, flexible paper popcorn package |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002129110A Division CA2129110C (en) | 1992-02-06 | 1993-01-29 | Single layer, greaseproof, flexible paper popcorn package |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2448708A1 true CA2448708A1 (en) | 1993-08-19 |
CA2448708C CA2448708C (en) | 2009-05-19 |
Family
ID=30771579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002448708A Expired - Lifetime CA2448708C (en) | 1992-02-06 | 1993-01-29 | Single layer, greaseproof, flexible paper popcorn package |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2448708C (en) |
-
1993
- 1993-01-29 CA CA002448708A patent/CA2448708C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2448708C (en) | 2009-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20130129 |