Patent US3935320A successfully refreshed from Google Patents.
US3935320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular cellulosic casing with cationic thermosetting resin coating
Assignee: Union Carbide Corp
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Filing: 1973-04-04
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Granted: 1976-01-27
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Expires: 1993-04-04
Abstract
Abstract A tubular cellulosic sausage casing such as a tubular fibrous casing particularly suitable for use with dry sausage such as Genoa salami has a coating bonded to the interior and exterior surfaces thereof of a cured cationic thermosetting resin. A tubular cellulosic sausage casing having at least about 0.45% by weight of said cured cationic thermosetting resin bonded to the surfaces of said casing exhibits resistance to degradation by cellulolytic enzymes.
Inventors
- 👤 Herman S. Chiu
- 👤 Jerome J. M. Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
42 words
A tubular cellulosic fibrous food casing characterized as being opaque and having at least about 0.45% by weight of a coating of cured cationic thermosetting resin bonded to the interior and exterior surfaces thereof to afford resistance to degradation by cellulolytic enzymes.
Claim 2
Dependent Claim
42 words
A tubular cellulosic fibrous food casing characterized as being opaque and having at least about 0.45% by weight of a coating of cured cationic thermosetting resin bonded to the interior and exterior surfaces thereof to afford resistance to degradation by cellulolytic enzymes.
Claim 3
Dependent Claim
12 words
The tubular casing of claim 1 which is characterized as being white.
Claim 4
Dependent Claim
20 words
The tubular casing of claim 1 wherein the cationic thermosetting resin is the reaction product of epichlorohydrin and a polyamide.
Claim 5
Dependent Claim
13 words
The tubular casing of claim 1 wherein the cationic thermosetting resin is polyethyleneimine.
Claim 6
Dependent Claim
44 words
A food product comprising a dry processed sausage encased in a tubular cellulosic food casing having a cured cationic thermosetting resin coating adhered to the interior and exterior surfaces thereof, the coating resin content of said casing being at least about 0.45% by weight.
Claim 7
Dependent Claim
44 words
A food product comprising a dry processed sausage encased in a tubular cellulosic food casing having a cured cationic thermosetting resin coating adhered to the interior and exterior surfaces thereof, the coating resin content of said casing being at least about 0.45% by weight.
Claim 8
Dependent Claim
17 words
The food product of claim 5 wherein a fibrous web is embedded in said tubular cellulosic tubing.
Claim 9
Dependent Claim
25 words
The food product of claim 5 wherein the dry processed sausage is a Genoa salami which is encased in a white, opaque tubular fibrous casing.
Claim 10
Independent Claim
70 words
The method of preparing a tubular cellulosic food casing that exhibits resistance to degradation by cellulolytic enzymes which comprises the steps of coating the interior and exterior surfaces of a tubular cellulosic food casing with an amount of water soluble cationic thermosetting resin sufficient to afford resistance to degradation of said casing by cellulolytic enzymes and then drying said casing and curing the resin coating applied to the surfaces thereof.
Claim 11
Independent Claim
70 words
The method of preparing a tubular cellulosic food casing that exhibits resistance to degradation by cellulolytic enzymes which comprises the steps of coating the interior and exterior surfaces of a tubular cellulosic food casing with an amount of water soluble cationic thermosetting resin sufficient to afford resistance to degradation of said casing by cellulolytic enzymes and then drying said casing and curing the resin coating applied to the surfaces thereof.
Claim 12
Dependent Claim
31 words
The method of claim 8 wherein an aqueous solution containing at least about 2% by weight of said cationic thermosetting resin is employed to coat the surfaces of said tubular casing.
Claim 13
Dependent Claim
19 words
The method of claim 8 wherein said cationic thermosetting resin is the reaction product of epichlorohydrin and a polyamide.
Claim 14
Dependent Claim
12 words
The method of claim 8 wherein said cationic thermosetting resin is polyethyleneimine.
Claim 15
Dependent Claim
48 words
The improved method of preparing a dry sausage the improvement which comprises the step of stuffing a food emulsion into a tubular cellulosic food casing having an amount of cured cationic thermosetting resin bonded to the interior and exterior surfaces thereof of at least about 0.45% by weight.
Claim 16
Dependent Claim
48 words
The improved method of preparing a dry sausage the improvement which comprises the step of stuffing a food emulsion into a tubular cellulosic food casing having an amount of cured cationic thermosetting resin bonded to the interior and exterior surfaces thereof of at least about 0.45% by weight.
Claim 17
Dependent Claim
28 words
The improved method of claim 12 wherein the cationic thermosetting resin bonded to the surfaces of said food casing is the reaction product of epichlorohydrin and a polyamide.
Claim 18
Dependent Claim
21 words
The improved method of claim 12 wherein the cationic thermosetting resin bonded to the surfaces of said food casing is polyethyleneimine.
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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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |