US4683256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry edible film coating composition, method and coating form
Assignee: Colorcon Inc
•
Filing: 1985-07-29
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Granted: 1987-07-28
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Expires: 2005-07-29
Abstract
Abstract A dry powder edible film coating composition for use in pharmaceuticals, confectionery and food, comprising a dry mixture including powdered particles of a film forming non-toxic polymer, powdered edible pigment particles, and an edible polymer plasticizer, said dry mixture being solvent free. A method of making a dry powder edible film coating composition of powdered pigment particles for use in pharmaceuticals, confectionery and food, comprising the steps of mixing a powder of a film forming polymer and powdered pigment particles in a blender to form a polymer-pigment mix, and adding the plasticizer to the blender containing the polymer-pigment mix and mixing until the combined mix is blended to form the dry powder edible film coating composition.
Inventors
- 👤 Stuart C. Porter
- 👤 Edward J. Woznicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:50
CPC Classifications
C; C09; C09D; C09D189/00; A; A23; A23G; A23G3/00; A23G3/02; A23G3/0205; A23G3/34; A23G3/343; A61; A61K; A61K9/00; A61K9/20; A61K9/28; C09D101/00; C09D101/08; A23G2200/00
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
95 words
A method of making a coating dispersion for use in pharmaceuticals, confectionery and food, comprising the steps of dry mixing a powder of film forming polymer and powdered pigment particles in a blender, mixing a surfactant into a plasticizer, adding the surfactant-plasticizer mix to the blender containing the polymer-pigment mix and dry mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent to form a coating dispersion adapted for use as a film coating for tablets and the like.
Claim 2
Independent Claim
95 words
A method of making a coating dispersion for use in pharmaceuticals, confectionery and food, comprising the steps of dry mixing a powder of film forming polymer and powdered pigment particles in a blender, mixing a surfactant into a plasticizer, adding the surfactant-plasticizer mix to the blender containing the polymer-pigment mix and dry mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent to form a coating dispersion adapted for use as a film coating for tablets and the like.
Claim 3
Dependent Claim
11 words
The method of claim 1, said solvent being an aqueous solvent.
Claim 4
Dependent Claim
14 words
The method of claim 1, said solvent being alcohol, methanol, methylene chloride, or acetone.
Claim 5
Independent Claim
106 words
A method of making an edible coated tablet and the like, comprising dry mixing a powder of film forming polymer and powdered pigment particles in a blender, mixing a surfactant into a plasticizer, adding the surfactant-plasticizer mix to the blender containing the polymer-pigment mix and dry mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent, without agglomeration, to form a coating dispersion adapted for use as a film coating for tablets and the like, coating a tablet with said coating dispersion, and drying the coating dispersion on the tablet.
Claim 6
Independent Claim
106 words
A method of making an edible coated tablet and the like, comprising dry mixing a powder of film forming polymer and powdered pigment particles in a blender, mixing a surfactant into a plasticizer, adding the surfactant-plasticizer mix to the blender containing the polymer-pigment mix and dry mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent, without agglomeration, to form a coating dispersion adapted for use as a film coating for tablets and the like, coating a tablet with said coating dispersion, and drying the coating dispersion on the tablet.
Claim 7
Independent Claim
90 words
A method of making a coating dispersion for use in pharmaceuticals, confectionery and food, comprising the steps of dry mixing a powder of film forming polymer and powdered pigment particles in a blender, adding a plasticizer to the blender containing the polymer-pigment mix and dry mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent, without agglomeration, to form a coating dispersion adapted for use as a film coating for tablets and the like.
Claim 8
Independent Claim
90 words
A method of making a coating dispersion for use in pharmaceuticals, confectionery and food, comprising the steps of dry mixing a powder of film forming polymer and powdered pigment particles in a blender, adding a plasticizer to the blender containing the polymer-pigment mix and dry mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent, without agglomeration, to form a coating dispersion adapted for use as a film coating for tablets and the like.
Claim 9
Dependent Claim
11 words
The method of claim 5, said solvent being an aqueous solvent.
Claim 10
Dependent Claim
14 words
The method of claim 5, said solvent being alcohol, methanol, methylene chloride, or acetone.
Claim 11
Independent Claim
99 words
A method of making an edible coated tablet and the like, comprising dry mixing a powder of film forming polymer and powdered pigment particles in a blender, adding a plasticizer to the blender containing the polymer-pigment mix and dry mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent, without agglomeration, to form a coating dispersion adapted for use as a film coating for tablets and the like, coating a tablet with said coating dispersion, and drying the coating dispersion on the tablet.
Claim 12
Independent Claim
99 words
A method of making an edible coated tablet and the like, comprising dry mixing a powder of film forming polymer and powdered pigment particles in a blender, adding a plasticizer to the blender containing the polymer-pigment mix and dry mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent, without agglomeration, to form a coating dispersion adapted for use as a film coating for tablets and the like, coating a tablet with said coating dispersion, and drying the coating dispersion on the tablet.
Claim 13
Independent Claim
118 words
A method of making a coating dispersion for use in pharmaceuticals, confectionery and food, comprising the steps of mixing a powder of film forming polymer and powdered pigment particles in a blender, adding a plasticizer to the blender containing the polymer-pigment mix and mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent to form a coating dispersion adapted for use as a film coating for tablets and the like, the plasticizer being in the range of 1% to 30% by weight of the polymer, the volume ratio of the polymer to pigment being about 4 to 1 to 10 to 1.
Claim 14
Independent Claim
118 words
A method of making a coating dispersion for use in pharmaceuticals, confectionery and food, comprising the steps of mixing a powder of film forming polymer and powdered pigment particles in a blender, adding a plasticizer to the blender containing the polymer-pigment mix and mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent to form a coating dispersion adapted for use as a film coating for tablets and the like, the plasticizer being in the range of 1% to 30% by weight of the polymer, the volume ratio of the polymer to pigment being about 4 to 1 to 10 to 1.
Claim 15
Dependent Claim
38 words
The method of claim 9, the plasticizer being in the range of about 5% to 20% by weight of the polymer, the volume ratio of the polymer to pigment being about 4 to 1 to 10 to 1.
Claim 16
Dependent Claim
28 words
The method of claim 9, the plasticizer being about 10% by weight of the polymer, the volume ratio of the polymer to pigment being about 6.5 to 1.
Claim 17
Dependent Claim
24 words
The method of claim 9, the polymer being methylcellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, cellulose acetate phthalate, ethylcellulose, polyvinylpyrrollidone, sodium ethylcellulose sulphate, zein, or polyvinylacetatephthalate.
Claim 18
Dependent Claim
27 words
The method of claim 9, the pigment particles being FD&C and D&C lakes, titanium dioxide, magnesium carbonate, talc, pyrogenic silica, iron oxides, channel black, or insoluble dyes.
Claim 19
Dependent Claim
42 words
The method of making a dry edible film coating composition of claim 9, the polymer plasticizer being polyethylene glycol having a molecular weight in the range of 200 to 8000, glycerin, propyleneglycol, glycerinetriacetate, acetylated monoglyceride, triethylcitrate, tributylcitrate, acetyltriethylcitrate, acetyltributylcitrate, or diethyl phthalate.
Claim 20
Dependent Claim
12 words
The method of claim 9, the polymer plasticizer being polyethylene glycol 400.
Claim 21
Dependent Claim
12 words
The method of claim 9, the polymer plasticizer being a liquid plasticizer.
Claim 22
Dependent Claim
12 words
The method of claim 9, including mixing a surfactant into the plasticizer.
Claim 23
Independent Claim
127 words
A method of making an edible coated tablet and the like, comprising mixing a powder of film forming polymer and powdered pigment particles in a blender, adding a plasticizer to the blender containing the polymer-pigment mix and mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent to form a coating dispersion adapted for use as a film coating for tablets and the like, coating a tablet with said coating dispersion, and drying the coating dispersion on the tablet, the plasticizer being in the range of 1% to 30% by weight of the polymer, the volume ratio of the polymer to pigment being about 4 to 1 to 10 to 1.
Claim 24
Independent Claim
127 words
A method of making an edible coated tablet and the like, comprising mixing a powder of film forming polymer and powdered pigment particles in a blender, adding a plasticizer to the blender containing the polymer-pigment mix and mixing until the combined mix is blended to form a dry edible film coating composition, and dispersing the dry edible film coating composition into a solvent to form a coating dispersion adapted for use as a film coating for tablets and the like, coating a tablet with said coating dispersion, and drying the coating dispersion on the tablet, the plasticizer being in the range of 1% to 30% by weight of the polymer, the volume ratio of the polymer to pigment being about 4 to 1 to 10 to 1.
Claim 25
Dependent Claim
38 words
The method of claim 18, the plasticizer being in the range of about 5% to 20% by weight of the polymer, the volume ratio of the polymer to pigment being about 4 to 1 to 10 to 1.
Claim 26
Dependent Claim
28 words
The method of claim 18, the plasticizer being about 10% by weight of the polymer, the volume ratio of the polymer to pigment being about 6.5 to 1.
Claim 27
Dependent Claim
24 words
The method of claim 18, the polymer being methylcellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, cellulose acetate phthalate, ethylcellulose, polyvinylpyrrollidone, sodium ethylcellulose sulphate, zein, or polyvinylacetatephthalate.
Claim 28
Dependent Claim
27 words
The method of claim 18, the pigment particles being FD&C and D&C lakes, titanium dioxide, magnesium carbonate, talc, pyrogenic silica, iron oxides, channel black, or insoluble dyes.
Claim 29
Dependent Claim
42 words
The method of making a dry edible film coating composition of claim 18, the polymer plasticizer being polyethylene glycol having a molecular weight in the range of 200 to 8000, glycerin, propyleneglycol, glycerinetriacetate, acetylated monoglyceride, triethylcitrate, tributylcitrate, acetyltriethylcitrate, acetyltributylcitrate, or diethyl phthalate.
Claim 30
Dependent Claim
12 words
The method of claim 18, the polymer plasticizer being polyethylene glycol 400.
Claim 31
Dependent Claim
12 words
The method of claim 18, the polymer plasticizer being a liquid plasticizer.
Claim 32
Dependent Claim
12 words
The method of claim 18, including mixing a surfactant into the plasticizer.
Claim 33
Independent Claim
65 words
A method of coating edible coated tablets and the like, comprising making a coating dispersion of a cellulosic film forming polymer, pigment particles and plasticizer, the plasticizer being in the range of 1% to 30% by weight of the polymer, and the volume ratio of the polymer to pigment being about 4 to 1 to 10 to 1, and spraying said dispersion on the tablets.
Claim 34
Independent Claim
65 words
A method of coating edible coated tablets and the like, comprising making a coating dispersion of a cellulosic film forming polymer, pigment particles and plasticizer, the plasticizer being in the range of 1% to 30% by weight of the polymer, and the volume ratio of the polymer to pigment being about 4 to 1 to 10 to 1, and spraying said dispersion on the tablets.
Claim 35
Dependent Claim
11 words
The method of claim 27, wherein said dispersion is in water.
Claim 36
Dependent Claim
29 words
The method of claim 27, wherein said cellulosic film forming polymer is selected from the group consisting of methylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, cellulose acetate phthalate, ethylcellulose, and sodium ethylcellulose sulphate.
Claim 37
Dependent Claim
10 words
The method of claim 27, wherein said plasticizer being polyethyleneglycol.
Claim 38
Independent Claim
75 words
A method of making a coating dispersion for use in coating pharmaceuticals, confectionery and food, comprising the steps of making a dry edible film coating composition of a film forming polymer, plasticizer, and powdered pigment particles, and dispersing the elements of said dry edible film coating composition simultaneously into a solvent by dispersing said composition into the solvent to form a coating dispersion adapted for use as a film coating for tablets and the like.
Claim 39
Independent Claim
75 words
A method of making a coating dispersion for use in coating pharmaceuticals, confectionery and food, comprising the steps of making a dry edible film coating composition of a film forming polymer, plasticizer, and powdered pigment particles, and dispersing the elements of said dry edible film coating composition simultaneously into a solvent by dispersing said composition into the solvent to form a coating dispersion adapted for use as a film coating for tablets and the like.
Claim 40
Dependent Claim
15 words
The method of claim 31, including the step of coating tablets with the coating dispersion.
Claim 41
Dependent Claim
24 words
The method of claim 32, including coating the tablets by spraying the coating dispersion onto the tablets, and drying the coating on the tablets.
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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) | 1990-07-27 | 1991-01-26 | 1991-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-27 | 1995-01-26 | 1995-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-27 | 1999-01-26 | 1999-07-28 | $7700.00 | Window Closed / Lapsed |