Patent US5358765A successfully refreshed from Google Patents.
US5358765A
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Cellulosic article containing an olefinic oxide polymer and method of manufacture
Assignee: Viskase Corp
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Filing: 1994-10-25
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Granted: 1994-10-25
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Expires: 2014-10-25
Abstract
Abstract A tubular cellulosic casing comprising cellulose or a cellulose derivative which has incorporated therewith a polyethylene oxide composition having a molecular weight of at least 70,000 and a method of manufacturing the same.
Inventors
- 👤 John Markulin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:57
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C2013/0096; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1324
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
54 words
A cellulosic tubular food casing containing an olefinic oxide polymer uniformly dispersed through the tube wall in admixture with the cellulose and in sufficient quantity so that the olefinic oxide polymer-to-cellulose weight ratio is at least about 1:200, and wherein said olefinic oxide polymer has an average molecular weight of at least about 70,000.
Claim 2
Dependent Claim
54 words
A cellulosic tubular food casing containing an olefinic oxide polymer uniformly dispersed through the tube wall in admixture with the cellulose and in sufficient quantity so that the olefinic oxide polymer-to-cellulose weight ratio is at least about 1:200, and wherein said olefinic oxide polymer has an average molecular weight of at least about 70,000.
Claim 3
Dependent Claim
14 words
An article according to claim 1 wherein said olefinic oxide polymer is a homopolymer.
Claim 4
Dependent Claim
21 words
An article according to claim 1 wherein the weight ratio of olefinic oxide polymer to cellulose is less than about 1:9.
Claim 5
Dependent Claim
14 words
An article according to claim 1 wherein the tube does not contain fiber reinforcement.
Claim 6
Dependent Claim
12 words
An article according to claim 1 wherein the tube contains fiber reinforcement.
Claim 7
Dependent Claim
11 words
An article according to claim 1 wherein the article is shirred.
Claim 8
Dependent Claim
15 words
An article according to claim 1 wherein the article contains no polyhydric alcohol softening agent.
Claim 9
Dependent Claim
13 words
An article according to claim 1 wherein the article is a multilayer film.
Claim 10
Dependent Claim
12 words
An article according to claim 2 wherein said homopolymer is poly(ethylene oxide).
Claim 11
Dependent Claim
26 words
An article according to claim 9 wherein said article contains no more than about 5 weight % polyhydric alcohol softening agent on a bone dry basis.
Claim 12
Dependent Claim
18 words
An article according to claim 9 wherein said poly(ethylene oxide) has an average molecular weight of about 100,000.
Claim 13
Dependent Claim
22 words
An article according to claim 3 wherein the weight ratio of olefinic oxide polymer to cellulose is between about 1:20 and 1:100.
Claim 14
Dependent Claim
31 words
An article according to claim 8 wherein the interior surface layer of the tube contains said olefin oxide polymer and at least one other layer is free of olefin oxide polymer.
Claim 15
Dependent Claim
17 words
A casing according to claim 1 wherein said casing contains less than 5% by weight of polyol.
Claim 16
Dependent Claim
14 words
A casing according to claim 1 wherein said casing has liquid smoke incorporated therein.
Claim 17
Dependent Claim
19 words
A casing as defined in claim 1 wherein said casing tube wall thickness is between 0.7 to 2.0 mils.
Claim 18
Dependent Claim
17 words
A casing according to claim 1 wherein said casing has a circumference of at least 4.4 cm.
Claim 19
Dependent Claim
17 words
A casing according to claim 1 wherein said casing has a circumference of at least 10.4 cm.
Claim 20
Dependent Claim
19 words
A casing according to claim 1 wherein said casing has a circumference of between about 4.9 and 9.7 cm.
Claim 21
Dependent Claim
19 words
A casing according to claim 1 wherein said casing has a circumference of between about 10.4 and 54.9 cm.
Claim 22
Dependent Claim
23 words
A casing according to claim 1 wherein said tubular casing comprises a tube having an interior surface coated with a transferable edible colorant.
Claim 23
Dependent Claim
44 words
A casing according to claim 6 wherein said tubular casing comprises a tube having an interior surface coated with a peeling aid composition in an amount effective to promote peeling, wherein said peeling aid composition comprises a release agent and an anti-pleat lock agent.
Claim 24
Dependent Claim
15 words
A casing according to claim 22 wherein said peeling aid composition further comprises a surfactant.
Claim 25
Dependent Claim
15 words
A casing according to claim 22 wherein said release agent comprises a salt of carboxymethylcellulose.
Claim 26
Dependent Claim
21 words
A casing according to claim 22 wherein said peeling composition comprises a water soluble cellulose ether, a phospholipid and a polyol.
Claim 27
Dependent Claim
32 words
A casing according to claim 22, wherein said release agent is selected from the group consisting of water-soluble cellulose or their salts, dextrin, casein, alginates, lecithin, chitosan, a phospholipid, or mixtures thereof.
Claim 28
Dependent Claim
16 words
A casing according to claim 26, wherein said anti-pleat lock agent comprises an oil or phospholipid.
Claim 29
Dependent Claim
15 words
An article, as defined in claim 1, wherein said molecular weight is at least 90,000.
Claim 30
Dependent Claim
17 words
An article, as defined in claim 1, wherein said molecular weight is between about 100,000 and 4,000,000.
Claim 31
Dependent Claim
16 words
An article, as defined in claim 1, wherein said molecular weight is between 90,000 and 200,000.
Claim 32
Dependent Claim
15 words
An article, as defined in claim 1, wherein said molecular weight is less than 1,000,000.
Claim 33
Dependent Claim
57 words
A nonreinforced tubular cellulosic food casing in shirred form and without a polyhydric alcohol softening agent but containing poly(ethylene oxide) of greater than about 70,000 molecular weight and being uniformly dispersed through the tube wall in admixture with the cellulose and in sufficient quantity so that the poly(ethylene oxide)-to-cellulosic weight ratio is between about 0.5:95 and 5:95.
Claim 34
Dependent Claim
57 words
A nonreinforced tubular cellulosic food casing in shirred form and without a polyhydric alcohol softening agent but containing poly(ethylene oxide) of greater than about 70,000 molecular weight and being uniformly dispersed through the tube wall in admixture with the cellulose and in sufficient quantity so that the poly(ethylene oxide)-to-cellulosic weight ratio is between about 0.5:95 and 5:95.
Claim 35
Dependent Claim
33 words
An article according to claim 32 wherein said article comprises a film having a moisture content less than about 35% by weight bone dry gauge, and a film thickness less than 23 microns.
Claim 36
Dependent Claim
18 words
An article according to claim 32 wherein said article comprises a shirred film of at least 190 feet.
Claim 37
Dependent Claim
18 words
An article according to claim 32 wherein said article comprises a shirred film of at least 210 feet.
Claim 38
Dependent Claim
18 words
An article according to claim 32 wherein said article comprises a shirred film of at least 230 feet.
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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) | 1997-10-24 | 1998-04-25 | 1998-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-24 | 2002-04-25 | 2002-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-24 | 2006-04-25 | 2006-10-25 | $7700.00 | Window Closed / Lapsed |