US5230933A
Expired / Lapsed
US
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Acid resistant peelable casing
Assignee: Viskase Corp
•
Filing: 1990-07-11
•
Granted: 1993-07-27
•
Expires: 2010-07-11
Abstract
Abstract Acid resistant peeling aid compositions and casings, particularly tubular cellulosic food casings, coated therewith, which compositions contain a water-soluble cellulose ether, dextrin and optionally lecithin.
Inventors
- 👤 Patrick B. Apfeld
- 👤 II Frederick M. Merritt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:08
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C2013/003; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1324; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
47 words
A tubular acid resistant release coated food casing comprising a casing having a coating on the inner surface thereof in an effective amount to provide a high speed machine peelable casing wherein said coating comprises a water-soluble cellulose ether and pyro dextrin in an acidic casing environment.
Claim 2
Dependent Claim
47 words
A tubular acid resistant release coated food casing comprising a casing having a coating on the inner surface thereof in an effective amount to provide a high speed machine peelable casing wherein said coating comprises a water-soluble cellulose ether and pyro dextrin in an acidic casing environment.
Claim 3
Dependent Claim
14 words
A casing, as defined in claim 1, wherein said coating further comprises a lecithin.
Claim 4
Dependent Claim
16 words
A casing, as defined in claim 1, wherein said coating further comprises an anti-pleat lock agent.
Claim 5
Dependent Claim
14 words
A casing, as defined in claim 3, wherein said coating further comprises a surfactant.
Claim 6
Dependent Claim
25 words
A casing, as defined in claim 1, wherein said casing is treated with liquid smoke and said casing has a pH of less than 6.0.
Claim 7
Dependent Claim
16 words
A casing, as defined in claim 1, wherein said casing comprises a nonfibrous regenerated cellulose casing.
Claim 8
Dependent Claim
18 words
A casing, as defined in claim 1, wherein said casing is in the form of a shirred stick.
Claim 9
Dependent Claim
16 words
A casing, as defined in claim 1, wherein said pyro dextrin comprises an acid hydrolyzed pyrodextrin.
Claim 10
Dependent Claim
15 words
A casing, as defined in claim 1, wherein said pyro dextrin comprises a tapioca dextrin.
Claim 11
Dependent Claim
42 words
A shirred, tubular, nonfibrous, cellulosic, liquid smoke treated food casing having a pH of less than about 6.0 and having a release coating on the inner surface thereof, said coating comprising a mixture of a pyro dextrin and a water-soluble cellulose ether.
Claim 12
Dependent Claim
42 words
A shirred, tubular, nonfibrous, cellulosic, liquid smoke treated food casing having a pH of less than about 6.0 and having a release coating on the inner surface thereof, said coating comprising a mixture of a pyro dextrin and a water-soluble cellulose ether.
Claim 13
Dependent Claim
15 words
A casing, as defined in claim 10, wherein said release coating further comprises a lecithin.
Claim 14
Dependent Claim
20 words
A casing, as defined in claim 10, wherein said release coating further comprises an anti-pleat lock agent, and a surfactant.
Claim 15
Dependent Claim
26 words
A casing, as defined in claim 10, wherein said casing has a moisture content of at least about 25 weight percent based upon bone dry cellulose.
Claim 16
Dependent Claim
49 words
A casing, as defined in claim 10, wherein said release coating further comprises mineral oil, lecithin and a surfactant selected from the group of ethoxylated monodiglyceride, sorbitan trioleate, an alkylene oxide adduct of a fatty acid or partial fatty acid ester, and an aliphatic polyoxyethylene ether, or mixtures thereof.
Claim 17
Dependent Claim
81 words
A casing, as defined in claim 14, wherein said cellulose ether is present in an amount of from about 0.002 to about 0.09 mg/in 2 ; said dextrin is present in an amount of at least about 0.2 mg/in 2 ; said lecithin is present in an amount of from about 0.05 to about 0.50 mg/in 2 ; said mineral oil is present in an amount of at least 0.05 mg/in 2 ; all amounts based on said coated casing surface.
Claim 18
Dependent Claim
49 words
A cellulosic casing having a coating thereon, said coating comprising a mixture of a water-soluble cellulose ether, an oil, a surfactant, dextrin and lecithin in an effective amount to provide a machine peelable casing with an acid resistant coating wherein said casing is suitable for processing food products therein.
Claim 19
Dependent Claim
49 words
A cellulosic casing having a coating thereon, said coating comprising a mixture of a water-soluble cellulose ether, an oil, a surfactant, dextrin and lecithin in an effective amount to provide a machine peelable casing with an acid resistant coating wherein said casing is suitable for processing food products therein.
Claim 20
Dependent Claim
17 words
A casing, as defined in claim 16, wherein said casing has a pH of less than 6.0.
Claim 21
Dependent Claim
17 words
A casing, as defined in claim 16, wherein said casing has a pH of less than 5.5.
Claim 22
Dependent Claim
17 words
A casing, as defined in claim 16, wherein said casing has a pH of less than 5.0.
Claim 23
Dependent Claim
13 words
A casing, as defined in claim 16, wherein said casing contains liquid smoke.
Claim 24
Dependent Claim
14 words
A casing, as defined in claim 16, wherein said casing contains tar-depleted liquid smoke.
Claim 25
Dependent Claim
28 words
A casing, as defined in claim 16, wherein said casing contains at least 2 mg of tar-depleted liquid smoke constituents per square inch of the casing inner surface.
Claim 26
Dependent Claim
13 words
A casing, as defined in claim 16, wherein said casing comprises regenerated cellulose.
Claim 27
Dependent Claim
25 words
A casing, as defined in claim 16, wherein said casing comprises non-fibrous, tubular casing having said coating on the inner surface of said tubular casing.
Claim 28
Dependent Claim
18 words
A casing, as defined in claim 16, wherein said casing is in the form of a shirred stick.
Claim 29
Dependent Claim
19 words
A casing, as defined in claim 25, wherein said shirred stick has a coherency value of at least 1.0.
Claim 30
Dependent Claim
19 words
A casing, as defined in claim 25, wherein said shirred stick has a coherency value of at least 2.0.
Claim 31
Dependent Claim
19 words
A casing, as defined in claim 25, wherein said shirred stick has a coherency value of at least 3.0.
Claim 32
Dependent Claim
29 words
A casing, as defined in claim 16, wherein said cellulose ether is selected from the group consisting of methylcellulose, hydroxyethylcellulose, carboxymethyl hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropyl methylcellulose, carboxymethylcellulose and salts thereof.
Claim 33
Dependent Claim
17 words
A casing, as defined in claim 16, wherein said cellulose ether comprises carboxymethylcellulose or a salt thereof.
Claim 34
Dependent Claim
17 words
A casing, as defined in claim 16, wherein said surfactant comprises an ethoxylated monodiglyceride or mixtures thereof.
Claim 35
Dependent Claim
24 words
A casing, as defined in claim 16, wherein said surfactant comprises an alkylene oxide adduct of a fatty acid or partial fatty acid ester.
Claim 36
Dependent Claim
20 words
A casing, as defined in claim 16, wherein said surfactant comprises a polyoxyethylene sorbitan fatty acid ester or mixture thereof.
Claim 37
Dependent Claim
15 words
A casing, as defined in claim 16, wherein said dextrin comprises an acid hydrolyzed pyrodextrin.
Claim 38
Dependent Claim
14 words
A casing, as defined in claim 16, wherein said dextrin comprises a tapioca dextrin.
Claim 39
Dependent Claim
26 words
A casing, as defined in claim 16, wherein said cellulose ether is present in an amount of at least 0.001 mg/in 2 of coated casing surface.
Claim 40
Dependent Claim
29 words
A casing, as defined in claim 16, wherein said cellulose ether is present in an amount of from about 0.002 to about 0.09 mg/in 2 of coated casing surface.
Claim 41
Dependent Claim
32 words
A casing, as defined in claim 30, wherein said carboxymethylcellulose or a salt thereof is present in an amount of from about 0.03 to about 0.07 mg/in 2 of coated casing surface.
Claim 42
Dependent Claim
28 words
A casing, as defined in claim 16, wherein said dextrin is present in an amount of from about 0.10 to about 1.0 mg/in 2 of coated casing surface.
Claim 43
Dependent Claim
26 words
A casing, as defined in claim 16, wherein said dextrin is present in an amount of at least about 0.20 mg/in 2 of coated casing surface.
Claim 44
Dependent Claim
27 words
A casing, as defined in claim 16, wherein said dextrin is present in an amount of from about 0.20 to about 0.5 mg/in 2 of casing surface.
Claim 45
Dependent Claim
28 words
A casing, as defined in claim 16, wherein said lecithin is present in an amount of from about 0.1 to about 0.2 mg/in 2 of coated casing surface.
Claim 46
Dependent Claim
28 words
A casing, as defined in claim 16, wherein said lecithin is present in an amount of from about 0.05 to about 0.50 mg/in 2 of coated casing surface.
Claim 47
Dependent Claim
25 words
A casing, as defined in claim 16, wherein said oil is present in an amount of at least 0.05 mg/in 2 of coated casing surface.
Claim 48
Dependent Claim
27 words
A casing, as defined in claim 16, wherein said surfactant is present in an amount of from 0.005 to about 0.06 mg/in 2 of coated casing surface.
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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) | 1996-07-26 | 1997-01-25 | 1997-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-26 | 2001-01-25 | 2001-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-26 | 2005-01-25 | 2005-07-27 | $7700.00 | Window Closed / Lapsed |