US4409118A
Expired / Lapsed
US
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Tablet forming cleanser composition and method of preparation
Assignee: Warner Lambert Co LLC
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Filing: 1982-05-20
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Granted: 1983-10-11
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Expires: 2002-05-20
Abstract
Abstract A cleansing composition is disclosed that is particularly suited for compaction into tablet form, and comprises a phosphate salt, an optionally added silicate salt, such as a metasilicate and at least one perborate salt, wherein at least a portion of the perborate salt component is present as a compacted, granulated mixture with from about 0.01% to about 0.70% by weight of the perborate salt, of a polymeric fluorocarbon. Preferably, the perborate salt includes sodium perborate monohydrate and anhydrous sodium perborate, and polytetrafluoroethylene comprises the polymeric fluorocarbon used to prepare the granules. When present, the silicate salt is preferably utilized within a particle size ranging from about 1 to about 25 microns. The silicate aids disintegration and assists in mechanical cleaning, when the composition is prepared in tablet form for use as a denture cleanser. The use of the perborate granules reduces the difficulty of compacting the composition to form tablets, without impeding the operation and activity of the tablets as effervescent cleansers.
Inventors
- 👤 Anthony B. J. Eoga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:57
CPC Classifications
A; A61; A61Q; A61Q11/00; A61Q11/02; A61K; A61K8/00; A61K8/02; A61K8/0216; A61K8/022; A61K8/0225; A61K8/18; A61K8/19; A61K8/22; A61K8/23; A61K8/24; A61K8/72; A61K8/81; A61K8/8123; C; C11; C11D; C11D17/00; C11D17/0047; C11D17/0065; C11D17/0073; C11D3/00; C11D3/0005; C11D3/0052; C11D3/0073; C11D3/02; C11D3/04; C11D3/06; C11D3/08; C11D3/16; C11D3/37; C11D3/3746; C11D3/3749; C11D3/39; C11D3/3942; C11D3/48; A61K2800/00; A61K2800/20; A61K2800/22; A61K2800/222
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
117 words
An effervescent cleansing composition in tablet form comprising: A. a phosphate salt in an amount of from about 20% to about 45% by weight; B. a silicate salt in an amount of up to about 20% by weight; and C. at least one perborate salt in an amount of at least 50% by weight: wherein at least a portion of said perborate salt is present in a compacted, granulated mixture in an amount effective to facilitate compaction without substantially sticking to tablet forming equipment and with suitable dimensional stability without prolonged disintegration time when placed in solution, said granulated mixture containing from about 0.01% to about 0.70% by weight of said granulated mixture of a polymeric fluorocarbon.
Claim 2
Dependent Claim
117 words
An effervescent cleansing composition in tablet form comprising: A. a phosphate salt in an amount of from about 20% to about 45% by weight; B. a silicate salt in an amount of up to about 20% by weight; and C. at least one perborate salt in an amount of at least 50% by weight: wherein at least a portion of said perborate salt is present in a compacted, granulated mixture in an amount effective to facilitate compaction without substantially sticking to tablet forming equipment and with suitable dimensional stability without prolonged disintegration time when placed in solution, said granulated mixture containing from about 0.01% to about 0.70% by weight of said granulated mixture of a polymeric fluorocarbon.
Claim 3
Dependent Claim
14 words
The composition of claim 1 wherein said phosphate salt comprises an alkali metal phosphate.
Claim 4
Dependent Claim
12 words
The composition of claim 2 wherein said phosphate salt comprises trisodium phosphate.
Claim 5
Dependent Claim
26 words
The composition of claims 1, 2 or 3 wherein said phosphate salt is present in an amount of from about 25% to about 40% by weight.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein said silicate salt comprises an alkali metal metasilicate.
Claim 7
Dependent Claim
13 words
The composition of claim 5 wherein said alkali metal metasilicate comprises sodium metasilicate.
Claim 8
Dependent Claim
25 words
The composition of claims 5 or 6 wherein said silicate salt is present in an amount of from about 10% to about 20% by weight.
Claim 9
Dependent Claim
24 words
The composition of claims 5 or 6 wherein said silicate salt has a particle size of from about 1 micron to about 25 microns.
Claim 10
Dependent Claim
23 words
The composition of claim 1 wherein said perborate salt is selected from the group consisting of alkali metal and alkaline earth metal perborates.
Claim 11
Dependent Claim
14 words
The composition of claim 9 wherein said perborate salt comprises an alkali metal perborate.
Claim 12
Dependent Claim
26 words
The composition of claim 10 wherein said alkali metal perborate is selected from the group consisting of alkali metal perborate monohydrates and anhydrous alkali metal perborates.
Claim 13
Dependent Claim
13 words
The composition of claim 11 wherein said alkali metal perborates comprise sodium perborate.
Claim 14
Dependent Claim
23 words
The composition of claim 12 wherein said perborate salt is present in an amount of from about 50% to about 70% by weight.
Claim 15
Dependent Claim
22 words
The composition of claim 13 wherein said perborate is present in an amount of from about 50% to about 65% by weight.
Claim 16
Dependent Claim
24 words
The composition of claims 1, 13 or 14 wherein said perborate salt includes at least 20% by weight of an anhydrous alkali metal perborate.
Claim 17
Dependent Claim
23 words
The composition of claim 15 wherein said anhydrous perborate is present in an amount of from about 20% to about 25% by weight.
Claim 18
Dependent Claim
13 words
The composition of claim 15 wherein said anhydrous perborate comprises anhydrous sodium perborate.
Claim 19
Dependent Claim
13 words
The composition of claim 16 wherein said anhydrous perborate comprises anhydrous sodium perborate.
Claim 20
Dependent Claim
14 words
The composition of claim 1 wherein said polymeric fluorocarbon includes at least one fluoroolefin.
Claim 21
Dependent Claim
11 words
The composition of claim 19 wherein said polymeric fluorocarbon comprises polytetrafluoroethylene.
Claim 22
Dependent Claim
25 words
The composition of claims 1, 19 or 20 wherein said polymeric fluorocarbon is present in an amount from about 0.33% to about 0.66% by weight.
Claim 23
Dependent Claim
14 words
The composition of claim 13 wherein said polymeric fluorocarbon includes at least one fluoroolefin.
Claim 24
Dependent Claim
14 words
The composition of claim 15 wherein said polymeric fluorocarbon includes at least one fluoroolefin.
Claim 25
Dependent Claim
11 words
The composition of claim 22 wherein said polymeric fluorocarbon comprise polytetrafluoroethylene.
Claim 26
Dependent Claim
11 words
The composition of claim 23 wherein said polymeric fluorocarbon comprises polytetrafluoroethylene.
Claim 27
Dependent Claim
22 words
The composition of claim 13 wherein said polymeric fluorocarbon is present in an amount from about 0.33% to about 0.66% by weight.
Claim 28
Dependent Claim
22 words
The composition of claim 15 wherein said polymeric fluorocarbon is present in an amount from about 0.33% to about 0.66% by weight.
Claim 29
Dependent Claim
22 words
The composition of claim 22 wherein said polymeric fluorocarbon is present in an amount from about 0.33% to about 0.66% by weight.
Claim 30
Dependent Claim
22 words
The composition of claim 23 wherein said polymeric fluorocarbon is present in an amount from about 0.33% to about 0.66% by weight.
Claim 31
Dependent Claim
26 words
The composition of claim 1 further including at least one material selected from the following: builders, detergents, lubricants, sequestrants, perfumes, flavorings, excipients, disintegrants, and mixtures thereof.
Claim 32
Dependent Claim
24 words
The composition of claim 30 wherein said sequestrant comprises ethylene diamine tetracidic acid and its alkali metal salts, and said builders include sodium carbonate.
Claim 33
Dependent Claim
19 words
The tablet of claim 1 useful as a denture cleanser comprising the composition of claims 1, 5 or 12.
Claim 34
Dependent Claim
16 words
The tablet of claim 1 useful as a denture cleanser comprising the composition of claim 4.
Claim 35
Dependent Claim
16 words
The tablet of claim 1 useful as a denture cleanser comprising the composition of claim 7.
Claim 36
Dependent Claim
16 words
The tablet of claim 1 useful as a denture cleanser comprising the composition of claim 13.
Claim 37
Dependent Claim
16 words
The tablet of claim 1 useful as a denture cleanser comprising the composition of claim 15.
Claim 38
Dependent Claim
16 words
The tablet of claim 1 useful as a denture cleanser comprising the composition of claim 19.
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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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |