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US4576646A
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US
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Film-forming compositions for enveloping solid forms, particularly pharmaceutical or food products or seeds, and products obtained, coated with said compositions
Assignee: Societe dExploitation de Produits pour les Industries Chimiques SEPPIC SA
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Filing: 1984-10-31
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Granted: 1986-03-18
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Expires: 2004-10-31
Abstract
Abstract The present invention relates to film-forming compositions for enveloping solid forms such as pharmaceutical or food products or seeds, wherein they comprise, by weight: 15 to 85% of a cellulosic film-forming substance, 10 to 70% of at least one alpha-cellulose, 5 to 30% of at least one plasticizer suitable for consumption.
Inventors
- 👤 Bernard Branco
- 👤 Michel Malandain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:48
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2806; A61K9/2833; A61K9/286; A61K9/2866; A23; A23P; A23P20/00; A23P20/10; A23P20/105; C; C08; C08L; C08L1/00; C08L1/08; C08L1/26; C08L1/28; C08L1/284
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
47 words
Film-forming compositions for enveloping solid forms such as pharmaceutical or food products or seeds, wherein said compositions comprise, by weight: 15 to 85% of a cellulosic film-forming substance, 10 to 70% of at least one alpha-cellulose, 5 to 30% of at least one plasticizer suitable for consumption.
Claim 2
Dependent Claim
47 words
Film-forming compositions for enveloping solid forms such as pharmaceutical or food products or seeds, wherein said compositions comprise, by weight: 15 to 85% of a cellulosic film-forming substance, 10 to 70% of at least one alpha-cellulose, 5 to 30% of at least one plasticizer suitable for consumption.
Claim 3
Dependent Claim
37 words
The compositions of claim 1, wherein said cellulosic film-forming substance is selected from the group consisting of the alkylethers of cellulose, the hydroxyalkylethers of cellulose, the monocarboxylic esters of cellulose and the mixed ether esters of cellulose.
Claim 4
Dependent Claim
16 words
The compositions of claim 2, wherein said cellulosic film-forming substance is a hydroxypropylmethylcellulose of low viscosity.
Claim 5
Dependent Claim
25 words
The compositions of one of claim 1, wherein the alphacellulose is used in the form of a powder with a granulometry of less than 100μ.
Claim 6
Dependent Claim
21 words
The compositions of claim 1, wherein the plasticizer is selected from the group consisting of polyethyleneglycol and the stearate of polyoxyethylene.
Claim 7
Dependent Claim
15 words
Enveloped food or pharmaceutical products wherein the composition of claim 1 is used for enveloping.
Claim 8
Dependent Claim
24 words
The compositions of claim 4, wherein the alphacellulose is used in the form of a powder with a granulometry of less than 50 microns.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |