US5436007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaper rash lotion
Assignee: Abbott Laboratories
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Filing: 1993-06-15
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Granted: 1995-07-25
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Expires: 2013-06-15
Abstract
Abstract A skin lotion containing a linear polydimethylsiloxane polymer, a non-ionic emulsifier, consisting of polyoxyethylene sorbitan fatty acid esters, sorbitan fatty acid esters, polyoxyethylene alcohols, or polyoxyethylene fatty ethers aloe vera, an alkoxylated ether/ester, sodium citrate, citric acid, a blend of propylene glycol, diazolidinyl urea, methyl paraben and propyl paraben, and water. Most preferably the buffering system results in the lotion having a pH of about 5.2 which neutralizes acidic and basic by-products of urine and fecal matter. The lotion has a preferred viscosity in the range of 10-20,000 centipoise. The lotion is easily washed off with soap and water and is useful in the protection and treatment of diaper rash.
Inventors
- 👤 Donald E. Hartung
- 👤 Murray J. Sibley
- 👤 Steven J. McConaghy
- 👤 Marvin G. Cross
- 👤 Rosalyn Ruland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:58
CPC Classifications
A; A61; A61Q; A61Q17/00; A61K; A61K8/00; A61K8/02; A61K8/0208; A61K8/18; A61K8/72; A61K8/84; A61K8/89; A61K8/891; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/46; A61Q19/00; A61K2800/00; A61K2800/74; A61K2800/75; A61L2300/00; A61L2300/20; A61L2300/21; A61L2300/30; A61L2300/40; A61L2300/452; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/172; Y10T442/184; Y10T442/198; Y10T442/20
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
167 words
A skin lotion having viscosity of about 10 to 20,000 centipoise and a pH of about 3.5 to 6.5, said lotion comprising: (a) a linear polydimethylsiloxane polymer in a concentration by weight of about 1 to 30%; (b) a non-ionic emulsifier in a concentration by weight of about 1 to 10%, selected from the group consisting of polyoxyethylene sorbitan fatty acid esters, sorbitan fatty acid esters, polyoxyethylene alcohols, and polyoxyethylene fatty ethers; (c) sodium citrate in a concentration by weight of about 1 to 10%; (d) citric acid in a concentration by weight of about 0.17 to 1.7%; (e) a blend of propylene glycol, diazolidinyl urea, methyl paraben, and propyl paraben in a concentration by weight of about 0.2 to 3%; (f) disodium ethylene diamine tetraacetic acid in a concentration by weight not greater than about 1%; (g) water in a concentration by weight of about 50 to 95%; and (h) polypropylene glycol myristyl ether propionate in a concentration of not greater than about 5% by weight.
Claim 2
Dependent Claim
167 words
A skin lotion having viscosity of about 10 to 20,000 centipoise and a pH of about 3.5 to 6.5, said lotion comprising: (a) a linear polydimethylsiloxane polymer in a concentration by weight of about 1 to 30%; (b) a non-ionic emulsifier in a concentration by weight of about 1 to 10%, selected from the group consisting of polyoxyethylene sorbitan fatty acid esters, sorbitan fatty acid esters, polyoxyethylene alcohols, and polyoxyethylene fatty ethers; (c) sodium citrate in a concentration by weight of about 1 to 10%; (d) citric acid in a concentration by weight of about 0.17 to 1.7%; (e) a blend of propylene glycol, diazolidinyl urea, methyl paraben, and propyl paraben in a concentration by weight of about 0.2 to 3%; (f) disodium ethylene diamine tetraacetic acid in a concentration by weight not greater than about 1%; (g) water in a concentration by weight of about 50 to 95%; and (h) polypropylene glycol myristyl ether propionate in a concentration of not greater than about 5% by weight.
Claim 3
Dependent Claim
33 words
A skin lotion according to claim 1 wherein said sodium citrate and said citric acid cooperate to form a buffering system having a pH in the range of between about 3.5 and 6.5.
Claim 4
Dependent Claim
33 words
A skin lotion according to claim 2 wherein said sodium citrate and said citric acid cooperate to form a buffering system having a pH in the range of between about 4.5 and 6.0.
Claim 5
Dependent Claim
29 words
A skin lotion according to claim 2 wherein said sodium citrate and said citric acid cooperate to form a buffering system having a pH of about 5.0 and 5.5.
Claim 6
Dependent Claim
16 words
A skin lotion according to claim 1 wherein said skin lotion has a neutral olfactory sensation.
Claim 7
Dependent Claim
41 words
A skin lotion according to claim 1 wherein said skin lotion is soluble in soap and water, said sodium citrate and said citric acid cooperating to form a buffering system having a pH in the range of between 3.5 and 6.5.
Claim 8
Dependent Claim
20 words
A skin lotion according to claim 1 which includes aloe vera in concentration by weight of about 0 to 5%.
Claim 9
Dependent Claim
34 words
A skin lotion according to claim 1 wherein said lotion is delivered to skin by means of a wipe, a diaper, a spray from an aerosol or pump dispenser, a roll-on or a dabber.
Claim 10
Dependent Claim
134 words
A skin lotion according to claim 1 having a viscosity of about 10 to 500 centipoise and a pH of about 4.5 to 6.0, wherein said linear polydimethylsiloxane polymer is of a concentration of about 5 to 20% by weight, said emulsifier is of a concentration of about 2 to 6% by weight, said sodium citrate is of a concentration of about 1 to 8% by weight, said citric acid is of a concentration of about 0.1 to 1.3% by weight, said water is of a concentration of about 60 to 90% by weight, said sodium ethylenediamine tetraacetic acid is of a concentration of about 0 to 0.5% by weight, and said blend of propylene glycol, diazolidinyl urea, methyl paraben, and propyl paraben is of a concentration of about 0.2 to 2% by weight.
Claim 11
Dependent Claim
134 words
A skin lotion according to claim 1 having a viscosity of about 10 to 100 centipoise and a pH of about 5.0 to 5.5, wherein said linear polydimethylsiloxane polymer is of a concentration of about 8 to 12% by weight, said emulsifier is of a concentration of about 3 to 5% by weight, said sodium citrate is of a concentration of about 2 to 5% by weight, said citric acid is of a concentration of about 0.33 to 0.83% by weight, said water is of a concentration of about 70 to 85% by weight, said sodium ethylenediamine tetraacetic acid is of a concentration of about 0 to 0.3% by weight, and said blend of propylene glycol, diazolidinyl urea, methyl paraben, and propyl paraben is of a concentration of about 0.5 to 1.5% by weight.
Claim 12
Dependent Claim
134 words
A skin lotion according to claim 1 having a viscosity of about 1,000 to 20,000 centipoise and a pH of about 3.5 to 6.5, wherein said linear polydimethylsiloxane polymer is of a concentration of about 15 to 30% by weight, said emulsifier is of a concentration of about 1 to 10% by weight, said sodium citrate is of a concentration of about 1 to 10% by weight, said citric acid is of a concentration of about 0.1 to 1.7% by weight, said water is of a concentration of about 60 to 90% by weight, said sodium ethylenediamine tetraacetic acid is of a concentration of about 0 to 0.1% by weight, and said blend of propylene glycol, diazolidinyl urea, methyl paraben, and propyl paraben is of a concentration of about 0.2 to 3% by weight.
Claim 13
Dependent Claim
134 words
A skin lotion according to claim 1 having a viscosity of about 8,000 to 18,000 centipoise and a pH of about 4.5 to 6.0, wherein said linear polydimethylsiloxane polymer is of a concentration of about 15 to 30% by weight, said emulsifier is of a concentration of about 2 to 6% by weight, said sodium citrate is of a concentration of about 1 to 8% by weight, said citric acid is of a concentration of about 0.1 to 1.3% by weight, said water is of a concentration of about 60 to 90% by weight, said sodium ethylenediamine tetraacetic acid is of a concentration of about 0 to 0.1% by weight, and said blend of propylene glycol, diazolidinyl urea, methyl paraben, and propyl paraben is of a concentration of about 0.2 to 2% by weight.
Claim 14
Dependent Claim
134 words
A skin lotion according to claim 1 having a viscosity of about 10,000 to 15,000 centipoise and a pH of about 5.0 to 5.5, wherein said linear polydimethylsiloxane polymer is of a concentration of about 18 to 22% by weight, said emulsifier is of a concentration of about 3 to 5% by weight, said sodium citrate is of a concentration of about 2 to 5% by weight, said citric acid is of a concentration of about 0.3 to 0.9% by weight, said water is of a concentration of about 70 to 90% by weight, said sodium ethylenediamine tetraacetic acid is of a concentration of about 0 to 0.1% by weight, and said blend of propylene glycol, diazolidinyl urea, methyl paraben, and propyl paraben is of a concentration of about 0.5 to 1.5% by weight.
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