Patent US3833022A successfully refreshed from Google Patents.
US3833022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matte finish sausage casing
Assignee: Continental Group Inc
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Filing: 1972-07-24
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Granted: 1974-09-03
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Expires: 1992-07-24
Abstract
Abstract Matte finish synthetic sausage casing made by incorporating a fibrilla filler material having an average diameter of 16-20 microns and an average length of 40-110 microns in the material used to manufacture the casing. The casing, which may be made of regenerated cellulose or synthetic hydrophilic polymers, such as polyvinyl alcohol, may be of the unreinforced type or of the fibrous paper reinforced type. A preferred filler material is fibrous cellulosic floc.
Inventors
- 👤 Brien N O
- 👤 A Turbak
- 👤 W Goodenow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:36
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C13/0003; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1324; Y10T428/29; Y10T428/2913; Y10T428/2927
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A method in accordance with claim 1 of preparing a matte finish polyvinyl alcohol sausage casing comprising forming a tube from a long fiber saturating tissue, preparing a suspension by addition of said fibrilla filler material to an aqueous solution of polyvinyl alcohol in the proportion of from 5 to 40 parts by weight of filler material per 100 parts by weight of polyvinyl alcohol, impregnating said tube with said polyvinyl alcohol-filler suspension, coagulating and hardening said polyvinyl alcohol, and washing, plasticizing and drying the resulting case.
Claim 2
Dependent Claim
29 words
A method in accordance with claim 2 in which the filler is a cellulosic floc pretreated with from about 1 to 5% polyethyleneimine by weight of fibrous cellulosic floc.
Claim 3
Dependent Claim
72 words
A method in accordance with claim 1 of preparing a matte finish cellulosic sausage casing wherein viscose is extruded through an annular die into a coagulating and regenerating medium, comprising mixing said fibrilla filler material uniformly in viscose immediately prior to extrusion thereof, said filler material being added in the proportion of from 5 to 40 parts by weight of filler material per 100 parts by weight of cellulose in the viscose.
Claim 4
Dependent Claim
30 words
A method in accordance with claim 4 in which the filler is a fibrilla cellulosic floc pretreated with from about 1 to 5% polyethyleneimine by weight of said cellulosic floc.
Claim 5
Dependent Claim
85 words
A method in accordance with claim 1 of preparing a matte finish regenerated cellulose sausage casing comprising forming a tube from a long fiber saturating tissue, preparing a suspension by addition of said fibrilla filler material to viscose in the proportion of from 5 to 40 parts by weight of filler material per 100 parts by weight of cellulose in the viscose, impregnating said tube with said viscose and filler material, regenerating cellulose in the viscose-impregnated tube, and washing, plasticizing, and drying the resulting casing.
Claim 6
Dependent Claim
27 words
A method in accordance with claim 6 in which the filler is cellulosic floc pretreated with from about 1 to 5% polyethyleneimine by weight of said floc.
Claim 7
Dependent Claim
17 words
A method in accordance with claim 6 in which said tissure is a long fiber hemp paper.
Claim 8
Dependent Claim
82 words
A matte finish synthetic sausage casing comprising a thin wall continuous tube of a hydrophilic polymer selected from the group consisting of regenerated cellulose, polyvinyl alcohol, amylose, and alginates containing 5 to 40% wt. based on said polymer of a fibrilla filler material selected from the group consisting of cellulosic floc, polyvinyl alcohol fibers, soya protein fibers, and asbestos fibers, said fibrilla filler material having an average diameter of 16 to 20 microns and an average length of 40 to 110 microns.
Claim 9
Dependent Claim
24 words
A matte finish regenerated cellulose sausage casing in accordance with claim 9 having a fibrilla cellulosic floc dispersed in the regenerated cellulose casing material.
Claim 10
Dependent Claim
24 words
A matte finish regenerated cellulose sausage casing in accordance with claim 10 in which the casing is reinforced with a long fiber saturating tissue.
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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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |