US4503034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paste for protecting the skin
Assignee: Laboratoires Merck Clevenot SA
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Filing: 1983-09-02
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Granted: 1985-03-05
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Expires: 2003-09-02
Abstract
Abstract Paste for protecting the skin, fundamentally comprising: at least one hydrocolloid, insolubilized carboxymethylcellulose and/or another superabsorbent product derived from hydrocolloids, and a polyvinylpyrrolidone having a molecular weight of the order of 25,000 to 30,000, as thickeners, demineralized water as a binder, and to fix the latter, a suitable oil and a suitable stearate, and also crosslinked and insolubilized polyvinylpyrrolidone, and advantageously sorbitol and/or polyethylene glycol. Application, in particular, for providing protection against weeping wounds and/or against matter flowing out of stomata from the urinary or digestive tract.
Inventors
- 👤 Philippe Maupetit
- 👤 Bernard Demoulin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:35
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0014; A61L; A61L24/00; A61L24/001; A61L24/0031; A61L24/04; A61L24/043; A61L2400/00; A61L2400/14
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
58 words
A skin-protecting composition which is in paste form and comprises (in effective amounts): (a) at least one hydrocolloid and/or another superabsorbent derived from hydrocolloids, (b) an insolubilized carboxymethylcellulose, (c) a polyvinylpyrrolidone having a molecular weight in the order of 25,000 to 30,000, (d) demineralized water, (e) an oil, (f) a stearate, and (g) a crosslinked and insolubilized polyvinylpyrrolidone.
Claim 2
Dependent Claim
58 words
A skin-protecting composition which is in paste form and comprises (in effective amounts): (a) at least one hydrocolloid and/or another superabsorbent derived from hydrocolloids, (b) an insolubilized carboxymethylcellulose, (c) a polyvinylpyrrolidone having a molecular weight in the order of 25,000 to 30,000, (d) demineralized water, (e) an oil, (f) a stearate, and (g) a crosslinked and insolubilized polyvinylpyrrolidone.
Claim 3
Dependent Claim
14 words
A paste as claimed in claim 1, which also contains sorbitol and/or polyethylene glycol.
Claim 4
Dependent Claim
26 words
A paste as claimed in claim 2, wherein the crosslinked and insolubilized polyvinylpyrrolidone constitutes at most 3% by weight of the weight of the final paste.
Claim 5
Dependent Claim
14 words
A paste as claimed in claim 2, wherein the hydrocolloid contains an alkali-metal alginate.
Claim 6
Dependent Claim
14 words
A paste as claimed in claim 2, wherein the oil is a paraffin oil.
Claim 7
Dependent Claim
13 words
A paste as claimed in claim 2, wherein the oil is vaseline oil.
Claim 8
Dependent Claim
47 words
A paste as claimed in claim 2, wherein the stearate is a fatty alcohol stearate selected from the palmitostearate of glycerol and of polyoxyethylene glycol, the palmitostearate of ethylene glycol and of polyethylene glycol and the palmitostearate of glycols in combination with a polyoxyethyleneated fatty alcohol phosphate.
Claim 9
Dependent Claim
42 words
A paste as claimed in claim 1, wherein the paste comprises components in the following ratios and proportions by weight/weight: powder/water: 1 to 3 approximately, stearate/(water+oil+sorbitol and/or polyethyleneglycol)≧0.10, and PVP/water: 0.5 to 2 approximately, the term "powder" denoting all pulverulent components together.
Claim 10
Dependent Claim
26 words
A paste as claimed in claim 1, wherein the crosslinked and insolubilized polyvinylpyrrolidone constitutes at most 3% by weight of the weight of the final paste.
Claim 11
Dependent Claim
15 words
A paste as claimed in claim 1, wherein the hydrocolloid contains an alkali metal alginate.
Claim 12
Dependent Claim
14 words
A paste as claimed in claim 1, wherein the oil is a paraffin oil.
Claim 13
Dependent Claim
48 words
A paste as claimed in claim 1, wherein the stearate is a fatty alcohol stearate chosen from amongst the palmitostearate of glycerol and of polyoxyethylene glycol, the palmitostearate of ethylene glycol and of polyethylene glycol and the palmistostearate of glycols in combination with a polyoxyethyleneated fatty alcohol phosphate.
Claim 14
Dependent Claim
13 words
A paste as claimed in claim 11, wherein the oil is vaseline oil.
Claim 15
Dependent Claim
30 words
A process for protecting skin against body discharges which comprises applying an effective amount of a paste as claimed in claim 1 to skin subject to attack by body discharges.
Claim 16
Dependent Claim
29 words
A process according to claim 14 wherein the skin is subject to attack by weeping wounds and/or by matter flowing out of stomata from the urinary or digestive tract.
Claim 17
Dependent Claim
30 words
A process for protecting skin against body discharges which comprises applying an effective amount of a paste as claimed in claim 2 to skin subject to attach by body discharges.
Claim 18
Dependent Claim
29 words
A process according to claim 16 wherein the skin is subject to attack by weeping wounds and/or by matter flowing out of stomata from the urinary or digestive tract.
Claim 19
Dependent Claim
18 words
A paste as claimed in claim 8 wherein the ratio of stearate/(water+oil+sorbitol and/or polyethylene glycol) is about 0.15.
Claim 20
Dependent Claim
17 words
A paste as claimed in claim 8 wherein the ratio of powder/water is from 1.5 to 1.9.
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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) | 1988-03-04 | 1988-09-03 | 1989-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-04 | 1992-09-03 | 1993-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-04 | 1996-09-03 | 1997-03-05 | $7700.00 | Window Closed / Lapsed |