US4988546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flavor/fragrance enhanced composite structures
Assignee: International Paper Co
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Filing: 1988-06-17
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Granted: 1991-01-29
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Expires: 2008-06-17
Abstract
Abstract The present invention relates to an improved container for food and non-food products. The container utilizes a novel combination of materials to overcome polymer odor-emission problems that detract from the packaged product. The novel material structure includes a polymer flavor/fragrance concentrate which imparts an enhanced fragrance to the product when the container is opened, increasing consumer appeal.
Inventors
- 👤 Cynthia L. Tanner
- 👤 Allan A. Whillock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:06
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/18; A; A23; A23L; A23L27/00; A23L27/70; A23L27/74; B32B27/06; B32B27/08; B32B27/32; B32B2307/00; B32B2307/30; B32B2307/31; B32B2307/50; B32B2307/536; B32B2323/00; B32B2323/04; B32B2323/046; B32B2439/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/28; Y10T428/2809; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31507; Y10T428/31725; Y10T428/3175; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31909; Y10T428/31913; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
85 words
A multi-layer laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, the improvement comprising: a buried layer of a blend of a low density polyethylene polymer and a polymer flavor/fragrance concentrate and a product-contact layer of a low density polyethylene polymer which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 2
Dependent Claim
85 words
A multi-layer laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, the improvement comprising: a buried layer of a blend of a low density polyethylene polymer and a polymer flavor/fragrance concentrate and a product-contact layer of a low density polyethylene polymer which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 3
Dependent Claim
22 words
A multi-layer laminate structure as claimed in claim 1 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt. percent of the blend layer.
Claim 4
Dependent Claim
90 words
A multi-layer side-seamed blank, said blank constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, the improvement comprising: a buried layer of a blend of low density polyethylene polymer and a polymer flavor/fragrance concentrate and a product-contact layer of low density polyethylene polymer which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 5
Dependent Claim
90 words
A multi-layer side-seamed blank, said blank constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, the improvement comprising: a buried layer of a blend of low density polyethylene polymer and a polymer flavor/fragrance concentrate and a product-contact layer of low density polyethylene polymer which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 6
Dependent Claim
22 words
A multi-layer side-seamed blank as claimed in claim 3 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt. percent of the blend layer.
Claim 7
Dependent Claim
95 words
A multi-layer container, said container constructed from a side-seamed blank, constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, the improvement comprising: a buried layer of a blend of low density polyethylene polymer and a polymer flavor/ fragrance concentrate and a product-contact layer of low density polyethylene polymer which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 8
Dependent Claim
95 words
A multi-layer container, said container constructed from a side-seamed blank, constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, the improvement comprising: a buried layer of a blend of low density polyethylene polymer and a polymer flavor/ fragrance concentrate and a product-contact layer of low density polyethylene polymer which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 9
Dependent Claim
22 words
A multi-layer container structure as claimed in claim 5 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt. percent of the blend layer.
Claim 10
Dependent Claim
94 words
A multi-layer laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, a layer of a barrier material provided on the opposite side of the carrier layer sandwiched between tie layers, the improvement comprising: a product-contact layer of a blend of a low density polyethylene polymer and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 11
Dependent Claim
94 words
A multi-layer laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, a layer of a barrier material provided on the opposite side of the carrier layer sandwiched between tie layers, the improvement comprising: a product-contact layer of a blend of a low density polyethylene polymer and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 12
Dependent Claim
48 words
A multi-layer laminate structure as claimed in claim 7 wherein said barrier material layer is foil, ethylene vinyl alcohol copolymer, polyethylene terephthalate glycol-modified polyethylene terephthalate, acid-modified polyethylene terephthalate, polybutylene terephthalate, polyvinyl alcohol, vinylidene chloride copolymer, polyvinyl chloride polymer, vinyl chloride copolymer, polyamide polymer, polyamide copolymer or polycarbonate polymer.
Claim 13
Dependent Claim
22 words
A multi-layer laminate structure as claimed in claim 7 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt percent of the blend layer.
Claim 14
Dependent Claim
101 words
A multi-layer side-seamed blank, said blank constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, a layer of a barrier material provided on the opposite side of the carrier layer sandwiched between tie layers, the improvement comprising: a product-contact layer of a blend of a low density polyethylene polymer and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 15
Dependent Claim
101 words
A multi-layer side-seamed blank, said blank constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, a layer of a barrier material provided on the opposite side of the carrier layer sandwiched between tie layers, the improvement comprising: a product-contact layer of a blend of a low density polyethylene polymer and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 16
Dependent Claim
48 words
A multi-layer side-seamed blank as claimed in claim 10 wherein said barrier material layer is foil, ethylene vinyl alcohol copolymer, polyethylene terephthalate, glycol-modified polyethylene terephthalate, acid-modified polyethylene terephthalate, polybutylene terephthalate, polyvinyl alcohol, vinylidene chloride copolymer, polyvinyl chloride polymer, vinyl chloride copolymer, polyamide polymer, polyamide copolymer or polycarbonate polymer.
Claim 17
Dependent Claim
22 words
A multi-layer side-seamed blank as claimed in claim 10 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt. percent of the blend layer.
Claim 18
Dependent Claim
106 words
A multi-layer container, said container constructed from a side seamed blank, constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, a layer of a barrier material provided on the opposite side of the carrier layer sandwiched between tie layers, the improvement comprising a product-contact layer of a blend of a low density polyethylene polymer and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 19
Dependent Claim
106 words
A multi-layer container, said container constructed from a side seamed blank, constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on both sides of the carrier layer, a layer of a barrier material provided on the opposite side of the carrier layer sandwiched between tie layers, the improvement comprising a product-contact layer of a blend of a low density polyethylene polymer and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 20
Dependent Claim
47 words
A multi-layer container as claimed in claim 13 wherein said barrier material layer is foil, ethylene vinyl alcohol copolymer, polyethylene terephthalate, glycol-modified polyethylene terephthalate, acid-modified polyethylene terephthalate, polybutylene terephthalate, polyvinyl alcohol, vinylidene chloride copolymer, polyvinyl chloride polymer, vinyl chloride copolymer, polyamide polymer, polyamide copolymer or polycarbonate polymer.
Claim 21
Dependent Claim
21 words
A multi-layer container as claimed in claim 13 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt. percent of the blend layer.
Claim 22
Dependent Claim
95 words
A multi-layer laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on one side of the carrier layer, a layer of a low density polyethylene polymer and a tie layer provided on the opposite side of the carrier layer, the improvement comprising: a product-contact layer of a blend of a barrier material and a polymer flavor/fragrance concentrate which can be heat sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 23
Dependent Claim
95 words
A multi-layer laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on one side of the carrier layer, a layer of a low density polyethylene polymer and a tie layer provided on the opposite side of the carrier layer, the improvement comprising: a product-contact layer of a blend of a barrier material and a polymer flavor/fragrance concentrate which can be heat sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 24
Dependent Claim
47 words
A multi-layer laminate structure as claimed in claim 16 wherein said barrier material layer is ethylene vinyl alcohol copolymer, polyethylene terephthalate, glycol-modified polyethylene terephthalate, acid-modified polyethylene terephthalate, polybutylene terephthalate, polyvinyl alcohol, vinylidene chloride copolymer, polyvinyl chloride polymer, vinyl chloride copolymer, polyamide polymer, polyamide copolymer or polycarbonate polymer.
Claim 25
Dependent Claim
22 words
A multi-layer laminate structure as claimed in claim 16 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt. percent of the blend layer.
Claim 26
Dependent Claim
101 words
A multi-layer side-seamed blank, said blank constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminated a layer of low density polyethylene provided on one side of the carrier layer, a layer of a low density polyethylene polymer and a tie layer provided on the opposite side of the carrier layer, the improvement comprising: a product-contact layer of a blend of a barrier material and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 27
Dependent Claim
101 words
A multi-layer side-seamed blank, said blank constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminated a layer of low density polyethylene provided on one side of the carrier layer, a layer of a low density polyethylene polymer and a tie layer provided on the opposite side of the carrier layer, the improvement comprising: a product-contact layer of a blend of a barrier material and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 28
Dependent Claim
48 words
A multi-layer side-seamed blank structure as claimed in claim 19 wherein said barrier material layer is ethylene vinyl alcohol copolymer, polyethylene terephthalate, glycol-modified polyethylene terephthalate, acid-modified polyethylene terephthalate, polybutylene terephthalate, polyvinyl alcohol, vinylidene chloride copolymer, polyvinyl chloride polymer, vinyl chloride copolymer, polyamide polymer, polyamide copolymer or polycarbonate polymer.
Claim 29
Dependent Claim
23 words
A multi-layer side-seamed blank structure as claimed in claim 19 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt. percent of the blend layer.
Claim 30
Dependent Claim
105 words
A multi-layer container, said container constructed from a side-seamed blank, constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on one side of the carrier layer, a layer of a low density polyethylene polymer and a tie layer provided on the opposite side of the carrier layer, the improvement comprising: a product-contact layer of a blend of a barrier material and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 31
Dependent Claim
105 words
A multi-layer container, said container constructed from a side-seamed blank, constructed from a laminate structure including a carrier layer of material imparting stiffness to the laminate, a layer of low density polyethylene provided on one side of the carrier layer, a layer of a low density polyethylene polymer and a tie layer provided on the opposite side of the carrier layer, the improvement comprising: a product-contact layer of a blend of a barrier material and a polymer flavor/fragrance concentrate which can be heat-sealed with the outer layer of low density polyethylene on conventional equipment at temperatures ranging from 250° F.-500° F. to enhance product aroma.
Claim 32
Dependent Claim
46 words
A multi-layer container structure as claimed in claim 22 wherein said barrier material layer is ethylene vinyl alcohol copolymer, polyethylene terephthalate, glycol-modified polyethylene terephthalate, acid-modified polyethylene terephthalate, polybutylene terephthalate, polyvinyl alcohol, vinylidene chloride copolymer, polyvinyl chloride polymer, vinyl chloride copolymer, polyamide polymer, polyamide copolymer or polycarbonate.
Claim 33
Dependent Claim
22 words
A multi-layer container structure as claimed in claim 22 wherein said polymer flavor/fragrance concentrate is 0.25-2.0 wt. percent of the blend layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-28 | 1994-07-30 | 1995-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-28 | 1998-07-30 | 1999-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-28 | 2002-07-30 | 2003-01-29 | $7700.00 | Window Closed / Lapsed |