US4161968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food casing and method of preparing same
Assignee: Viskase Corp
•
Filing: 1977-11-03
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Granted: 1979-07-24
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Expires: 1997-11-03
Abstract
Abstract A cellulosic food casing includes an internal coating comprising a water soluble cellulose ether and a cationic thermosetting resin.
Inventors
- 👤 Jerome J. M. Rasmussen
- 👤 Richard C. Waldman
- 👤 Richard L. Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:45
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1324; Y10T428/31504; Y10T428/31511; Y10T428/31725; Y10T428/31779; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
40 words
A cellulosic food casing including on the interior surface of said food casing a release coating comprising at least about 0.286% by weight of water soluble cellulose ether and at least about 0.029% by weight of a cationic thermosetting resin.
Claim 2
Dependent Claim
40 words
A cellulosic food casing including on the interior surface of said food casing a release coating comprising at least about 0.286% by weight of water soluble cellulose ether and at least about 0.029% by weight of a cationic thermosetting resin.
Claim 3
Dependent Claim
15 words
The food casing of claim 1 further comprising a fibrous web embedded in said casing.
Claim 4
Dependent Claim
10 words
The food casing of claim 1 in a shirred form.
Claim 5
Dependent Claim
15 words
The food casing of claim 1, wherein said resin is water soluble or water dispersible.
Claim 6
Dependent Claim
19 words
The food casing of claim 1, wherein said resin is curable from being water soluble to being water insoluble.
Claim 7
Dependent Claim
33 words
The food casing of claim 1, wherein said coating further comprises a component selected from the group consisting of mineral oils, polyols, and water soluble alkylene oxide adducts of partial fatty acid esters.
Claim 8
Dependent Claim
31 words
The food casing of claim 1, wherein said cellulose ether is selected from the group consisting of non-ionic water soluble alkyl and hydroxyalkyl cellulose ethers, and anionic water soluble cellulose ethers.
Claim 9
Dependent Claim
33 words
The food casing of claim 1, wherein said cellulose ether is selected from the group consisting of methyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, ethyl methyl cellulose, hydroxyethyl cellulose and ethyl hydroxyethyl cellulose.
Claim 10
Dependent Claim
23 words
The food casing of claim 1, wherein said cellulose ether is selected from the group consisting of carboxymethyl cellulose, and carboxymethyl hydroxyethyl cellulose.
Claim 11
Dependent Claim
13 words
The food casing of claim 1, wherein said cellulose ether is methyl cellulose.
Claim 12
Dependent Claim
35 words
The food casing of claim 1, wherein said resin is selected from the group consisting of reaction products of an epichlorohydrin and a polyamide, a modified melamine and formaldehyde, and a modified urea and formaldehyde.
Claim 13
Dependent Claim
19 words
The food casing of claim 1, wherein said resin is the reaction product of an epichlorohydrin and a polyamide.
Claim 14
Dependent Claim
16 words
The food casing of claim 1, wherein said resin is a polyalkylenepolyamine or a salt thereof.
Claim 15
Dependent Claim
26 words
The food casing of claim 1, wherein said cellulose ether is methyl cellulose and said resin is the reaction product of an epichlorohydrin and a polyamide.
Claim 16
Dependent Claim
21 words
The food casing of claim 14, wherein the weight ratio of said methyl cellulose to said reaction product is about 10:1.
Claim 17
Dependent Claim
45 words
The food casing of claim 14, wherein said coating comprises at least about 1.0 milligram of said methyl cellulose per 100 square inches of internal casing surface and at least about 0.1 milligram of said reaction product per 100 square inches of internal casing surface.
Claim 18
Dependent Claim
11 words
The food casing of claim 1, wherein said resin is polyethyleneimine.
Claim 19
Dependent Claim
64 words
A cellulosic food casing including on the interior surface of said food casing a release coating comprising at least about 0.286% by weight of a water soluble cellulose ether and at least about 0.029% by weight of a water soluble protein having a molecular weight above about 10,000 and an isoelectric point in the range of from about pH 2 to pH 6 .
Claim 20
Dependent Claim
64 words
A cellulosic food casing including on the interior surface of said food casing a release coating comprising at least about 0.286% by weight of a water soluble cellulose ether and at least about 0.029% by weight of a water soluble protein having a molecular weight above about 10,000 and an isoelectric point in the range of from about pH 2 to pH 6 .
Claim 21
Dependent Claim
21 words
The food casing of claim 17, wherein said protein is selected from the group consisting of gelatin, egg albumin, and glutenin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-23 | 1983-01-22 | 1983-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-23 | 1987-01-22 | 1987-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-23 | 1991-01-22 | 1991-07-24 | $7700.00 | Window Closed / Lapsed |