US4606922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cook-in meat packaging
Assignee: Cryovac LLC
•
Filing: 1983-04-21
•
Granted: 1986-08-19
•
Expires: 2003-04-21
Abstract
Abstract A method is provided for enhancing yield of a cook-in packaged meat product that includes first providing an adhering cook-in container including a flexible thermoplastic envelope being substantially conformable to a contained meat product and having an inner surface of a selectively irradiated ionomer of a metal salt neutralized copolymer of ethylene and acrylic acid or methacrylic acid, then conforming the container about a selected meat product and cooking the packaged product, whereupon the inner surface of the envelope bonds to the meat product to substantially prevent cook-out of fluids. An associated cook-in container is also provided.
Inventors
- 👤 Henry G. Schirmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:51
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C2013/0059
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
A method for enhancing yield of a cook-in packaged meat product, comprising: (a) providing an adhering cook-in container including a flexible thermoplastic envelope being substantially conformable to a contained meat product and having an inner meat contacting surface of an ionomer of a metal salt neutralized copolymer of an olefin and a carboxylic acid, said ionomer, while positioned as the inner surface of a flattened tube, having been treated with ionizing radiation to a dosage sufficient to cause bonding with a meat product positioned in contact therewith during cooking of said meat product; (b) conforming said container about a selected meat product; and (c) cooking the packaged product, whereupon said inner surface bonds to said meat product to substantially prevent cook-out of fluids therefrom.
Claim 2
Independent Claim
124 words
A method for enhancing yield of a cook-in packaged meat product, comprising: (a) providing an adhering cook-in container including a flexible thermoplastic envelope being substantially conformable to a contained meat product and having an inner meat contacting surface of an ionomer of a metal salt neutralized copolymer of an olefin and a carboxylic acid, said ionomer, while positioned as the inner surface of a flattened tube, having been treated with ionizing radiation to a dosage sufficient to cause bonding with a meat product positioned in contact therewith during cooking of said meat product; (b) conforming said container about a selected meat product; and (c) cooking the packaged product, whereupon said inner surface bonds to said meat product to substantially prevent cook-out of fluids therefrom.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein said ionomer is irradiated to a dosage of about 2.5-9 MR and wherein said olefin is ethylene and said acid is acrylic acid or methacrylic acid.
Claim 4
Dependent Claim
21 words
The method of claim 2 wherein said container is selected as a seamless tubular casing and said conforming is by stuffing.
Claim 5
Dependent Claim
35 words
The method of claim 3 wherein said casing is selected as comprising a tubular multi-layer film structure nylon/adhesive/ionomer, further provided that said adhesive is irradiatively cross-linkable and said film structure is irradiated to said dosage.
Claim 6
Dependent Claim
27 words
The method of claim 2 wherein said container is selected as a heat shrinkable bag and said conforming is by container shrinkage upon initiation of said cooking.
Claim 7
Dependent Claim
27 words
The method of claim 5 wherein said bag is selected as comprising a tubular multi-layer film structure EVA/ionomer and said film structure is irradiated to said dosage.
Claim 8
Dependent Claim
17 words
The method of claim 6 wherein said bag is selected as comprising the multi-layer film structure EVA/Saran/EVA/ionomer.
Claim 9
Dependent Claim
24 words
The method of claim 5 wherein said cooking is by immersion in water at about 70°-80° C. or in steam for about 4-6 hours.
References Cited (Backward Citations)
US3355319A
Cited
US3567539A
Cited
US3607505A
Cited
US3743521A
Cited
US3741253A
Cited
US3784711A
Cited
US3997383A
Cited
US4104404A
Cited
US4087587A
Cited
US4087588A
Cited
US4211596A
Cited
US4233367A
Cited
US4284458A
Cited
GB1587621A
Cited
GB2035198A
Cited
US4382513A
Cited
US4448792A
Cited
US4411919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |