US4473492A
Expired / Lapsed
US
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Electrode cream
Assignee: BASF Corp
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Filing: 1983-06-06
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Granted: 1984-09-25
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Expires: 2003-06-06
Abstract
Abstract This invention relates to a stable electrode cream capable of carrying weak electric current comprising an electrolyte in normal electrolyte amounts, a polyoxyethylene-polyoxybutylene block copolymer wherein the polyoxybutylene portion of the compound has a molecular weight of at least about 1000, and the polyoxyethylene portions contribute from about 60 to 90 percent by weight of the compound, the amount of the block copolymer being about 10 to 30 percent by weight and the balance substantially water.
Inventors
- 👤 Irving R. Schmolka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:11
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/181; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/122; H01M6/16; H01M6/162; H01M6/166; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
114 words
A stable electrode cream capable of carrying weak electric current comprising an electrolyte selected from the group consisting of salts, of benzoic, salicylic, tartaric, citric, lactic and malic acids and the chlorides, nitrates, sulfates, citrates, maleates, malonates, oxalates, salicylates, acetates, sorbates, phosphates, benzoates, borates, and carbonates of ammonia, sodium, potassium and lithium and mixtures thereof in normal electrolyte amounts, a polyoxyethylene-polyoxybutylene block copolymer wherein the polyoxybutylene portion of the compound has a molecular weight of at least abut 1000, and the polyoxyethylene portions contribute from about 60 to 90 percent by weight of the compound, the amount of the block copolymer being about 10 to 30 percent by weight and the balance substantially water.
Claim 2
Dependent Claim
114 words
A stable electrode cream capable of carrying weak electric current comprising an electrolyte selected from the group consisting of salts, of benzoic, salicylic, tartaric, citric, lactic and malic acids and the chlorides, nitrates, sulfates, citrates, maleates, malonates, oxalates, salicylates, acetates, sorbates, phosphates, benzoates, borates, and carbonates of ammonia, sodium, potassium and lithium and mixtures thereof in normal electrolyte amounts, a polyoxyethylene-polyoxybutylene block copolymer wherein the polyoxybutylene portion of the compound has a molecular weight of at least abut 1000, and the polyoxyethylene portions contribute from about 60 to 90 percent by weight of the compound, the amount of the block copolymer being about 10 to 30 percent by weight and the balance substantially water.
Claim 3
Dependent Claim
19 words
The composition of claim 1 wherein said electrolyte is at least about 1 percent by weight of the composition.
Claim 4
Dependent Claim
27 words
The composition of claim 3 wherein said composition includes conventional additives selected from the group consisting of bacteria and mold inhibitors, gumming agents, emollients and mixtures thereof.
Claim 5
Dependent Claim
34 words
The composition of claim 3 wherein the amount of said electrolyte is about 1 to 10 percent by weight of the composition and the amount of said additives is about 0.5 to 5 percent.
Claim 6
Dependent Claim
29 words
The composition of claim 4 wherein said electrolyte is selected from the group consisting of sodium chloride, potassium chloride, potassium citrate, ammonium phosphate and potassium sorbate and mixtures thereof.
Claim 7
Dependent Claim
59 words
The composition of claim 1 wherein said polyoxyethylene-polyoxybutylene block copolymer has the formula: HO(C.sub.2 H.sub.3 O).sub.m (C.sub.4 H.sub.8 O).sub.n (C .sub.2 H.sub.4 O).sub.m' H wherein n, m, and m' are integers such that the copolymer consists of 60 to 90 percent by weight polyoxyethylene groups and wherein the molecular weight of the polyoxybutylene groups is about 1000 to 4000.
Claim 8
Dependent Claim
19 words
The composition of claim 6 wherein said electrolyte is at least about 1 percent by weight of the composition.
Claim 9
Dependent Claim
51 words
The composition of claim 7 wherein said electrolyte is selected from the group consisting of salts of benzoic, salicylic, tartaric, citric, lactic and malic acids and the chlorides, nitrates, sulfates, citrates, maleates, malonates, oxalates, salicylates, acetates, sorbates, phosphates, benzoates, borates, and carbonates of ammonia, sodium, potassium and lithium and mixtures thereof.
Claim 10
Dependent Claim
27 words
The composition of claim 8 wherein said composition includes conventional additives selected from the group consisting of bacteria and mold inhibitors, gumming agents, emollients and mixtures thereof.
Claim 11
Dependent Claim
36 words
The composition of claim 9 wherein the amount of said electrolyte is about 1 to 10 percent by weight of the composition and the amount of said additives is about 0.5 to 5 percent by weight.
Claim 12
Dependent Claim
29 words
The composition of claim 10 wherein said electrolyte is selected from the group consisting of sodium chloride, potassium chloride, potassium citrate, ammonium phosphate and potassium sorbate and mixtures thereof.
References Cited (Backward Citations)
US3048549A
Cited
US3665064A
Cited
US3976055A
Cited
US4299231A
Cited
US4364929A
Cited
US4326977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |