Patent US4513019A successfully refreshed from Google Patents.
US4513019A
Expired / Lapsed
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: STYLED SA
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Filing: 1984-07-03
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Granted: 1985-04-23
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Expires: 2004-07-03
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 Brancq
- 👤 Michel Malandain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:07
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: 9
Claim 1
Independent Claim
76 words
A process for enveloping solid forms such as pharmaceuticals, food products or seeds with a film-forming composition, comprising the steps of: making a solution or dispersion of the components of a film-forming composition comprising, by weight, 15 to 85% of a cellulosic film-forming substance, 10 to 70% of at least one alpha-cellulose, and 5 to 30% of at least one plasticizer suitable for consumption; and spraying said solution or dispersion on the form to be enveloped.
Claim 2
Dependent Claim
76 words
A process for enveloping solid forms such as pharmaceuticals, food products or seeds with a film-forming composition, comprising the steps of: making a solution or dispersion of the components of a film-forming composition comprising, by weight, 15 to 85% of a cellulosic film-forming substance, 10 to 70% of at least one alpha-cellulose, and 5 to 30% of at least one plasticizer suitable for consumption; and spraying said solution or dispersion on the form to be enveloped.
Claim 3
Dependent Claim
16 words
A process as in claim 1, wherein said solution or dispersion is in an aqueous medium.
Claim 4
Dependent Claim
38 words
A process as in 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 5
Dependent Claim
17 words
A process as in claim 3, wherein said cellulosic film-forming substance is a hydroxypropylmethylcellulose of low viscosity.
Claim 6
Dependent Claim
25 words
A process as in claim 1, wherein said alphacellulose is added in the form of a powder with a granulometry of less than 100 microns.
Claim 7
Dependent Claim
25 words
A process as in claim 5, wherein said alphacellulose is added in the form of a powder with a granulometry of less than 50 microns.
Claim 8
Dependent Claim
22 words
A process as in claim 1, wherein said plasticizer is selected from the group consisting of polyethyleneglycol and the stearate of polyoxyethylene.
Claim 9
Dependent Claim
22 words
A process as in claim 2, wherein said solution or dispersion contains up to about 25% by weight of said film-forming composition.
References Cited (Backward Citations)
US4241090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |