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US4477288A
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Method and compositions for removal of undesirable organic matter
Assignee: Wyeth Holdings LLC
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Filing: 1983-11-28
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Granted: 1984-10-16
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Expires: 2003-11-28
Abstract
Abstract Method for removing undesirable organic matter from a surface which comprises applying to the undesirable organic matter an amount of (1) imidazole, pyrazole or an alkyl or aryl substituted imidazole or pyrazole, and (2) a phenyl glycol ether for a time sufficient to loosen the organic matter from the surface, and removing the loosened organic matter from the surface. Compositions containing the imidazole, pyrazole, substituted imidazole or substituted pyrazole and phenyl glycol ethers as the active ingredients are also within the scope of the invention.
Inventors
- 👤 Thomas F. Kazmierczak
- 👤 Richard Dulina
- 👤 Arthur W. Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:39
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2068; A; A21; A21B; A21B3/00; A21B3/16; C09; C09D; C09D9/00; C09D9/005; C11D3/0005; C11D3/0057; C11D3/26; C11D3/28
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
74 words
A method for facilitating the removal of undesirable organic matter from a surface which comprises contacting said organic matter with a substantially loosening effective amount of a composition comprising (1) at least one compound selected from imidazole, pyrazole, an alkyl or aryl substituted imidazole, an alkyl or aryl substituted pyrazole, and (2) at least one glycol phenyl ether in synergistic proportions, for a time sufficient to effect a substantial loosening of said organic matter.
Claim 2
Independent Claim
74 words
A method for facilitating the removal of undesirable organic matter from a surface which comprises contacting said organic matter with a substantially loosening effective amount of a composition comprising (1) at least one compound selected from imidazole, pyrazole, an alkyl or aryl substituted imidazole, an alkyl or aryl substituted pyrazole, and (2) at least one glycol phenyl ether in synergistic proportions, for a time sufficient to effect a substantial loosening of said organic matter.
Claim 3
Dependent Claim
32 words
The method according to claim 1 wherein the composition is applied to said organic matter in dry form and heated to at least a temperature at which the composition is rendered liquid.
Claim 4
Dependent Claim
31 words
The method according to claim 1 wherein the organic matter-containing surface is first heated to a temperature above the melting point of the composition and the composition is then applied thereto.
Claim 5
Dependent Claim
19 words
The method according to claim 1 wherein the composition is applied to said organic matter in a liquid form.
Claim 6
Dependent Claim
13 words
The method according to claim 4 wherein the liquid form is a solution.
Claim 7
Dependent Claim
67 words
A method according to claim 1 for facilitating the removal of undesirable organic matter from a surface which comprises contacting said organic matter with a substantially loosening effective amount of said composition in dry, dispersion, or part solution-part dispersion form and heating the composition to a temperature at which the composition is rendered liquid for a time sufficient to effect a substantial loosening of said organic matter.
Claim 8
Dependent Claim
25 words
The method according to claim 1 wherein the compound is imidazole, 2-methylimidazole, 4-methylimidazole, 1,2-dimethylimidazole, 2-ethylimidazole, 2-ethyl-4-methylimidazole, 2-isopropylimidazole, or a mixture of two or more thereof.
Claim 9
Dependent Claim
11 words
The method according to claim 1 wherein the compound is imidazole.
Claim 10
Dependent Claim
23 words
The method according to claim 1 wherein said glycol phenyl ether has from 1 to 6 carbon atoms in the glycol carbon chain.
Claim 11
Dependent Claim
21 words
The method according to claim 9 wherein said glycol phenyl ether is ethylene glycol phenyl ether or propylene glycol phenyl ether.
Claim 12
Dependent Claim
34 words
The method according to claim 6 wherein the organic matter-containing surface is first heated to a temperature above the melting point of the composition, and the composition is then applied to the organic matter.
Claim 13
Dependent Claim
20 words
The method according to claim 1 wherein the organic matter is food soil and the surface is an oven surface.
Claim 14
Dependent Claim
20 words
The method according to claim 8 wherein the organic matter is food soil and the surface is an oven surface.
Claim 15
Dependent Claim
60 words
A non-caustic composition for facilitating the removal of undesirable organic matter from a surface which comprises (a) a substantially loosening effective amount of (i) at least one azole compound selected from imidazole, pyrazole, an alkyl or aryl substituted imidazole, an alkyl or aryl substituted pyrazole, and (ii) at least one glycol phenyl ether in synergistic proportions, and (b) a carrier.
Claim 16
Dependent Claim
60 words
A non-caustic composition for facilitating the removal of undesirable organic matter from a surface which comprises (a) a substantially loosening effective amount of (i) at least one azole compound selected from imidazole, pyrazole, an alkyl or aryl substituted imidazole, an alkyl or aryl substituted pyrazole, and (ii) at least one glycol phenyl ether in synergistic proportions, and (b) a carrier.
Claim 17
Dependent Claim
18 words
The composition according to claim 14 wherein (b) is water or water and one or more organic solvents.
Claim 18
Dependent Claim
40 words
The composition of claim 14 further comprising (c) a thickening agent and, optionally, one or more of (d) a surfactant, (e) a finely divided inorganic material, and (f) a water soluble salt of a strong acid and a strong base.
Claim 19
Dependent Claim
85 words
The composition of claim 16 wherein (c) is selected from the group consisting of starch, sodium carboxymethyl cellulose, hydroxymethyl cellulose, methocel, carboxy vinyl polymers, Xanthan gum, magnesium aluminum silicates, and mixtures of two or more thereof, (e) is selected from the group consisting of calcium carbonate, magnesium carbonate, magnesium hydroxide, silica, feldspar, clay, talc, and mixtures of two or more thereof, and (f) is selected from the group consisting of sodium chloride, potassium chloride, sodium sulfate, potassium sulfate and mixtures of two or more thereof.
Claim 20
Dependent Claim
29 words
The composition according to claim 16 wherein (c) is a Xanthan gum, a magnesium aluminum silicate, or a mixture thereof, (e) is calcium carbonate, and (f) is potassium sulfate.
Claim 21
Dependent Claim
26 words
The composition according to claim 14 wherein said azole compound is imidazole, 2-methylimidazole, 4-methylimidazole, 1,2-dimethylimidazole, 2-ethylimidazole, 2-ethyl-4-methylimidazole, 2-isopropylimidazole or a mixture of two or more thereof.
Claim 22
Dependent Claim
12 words
The composition according to claim 17 wherein said azole compound is imidazole.
Claim 23
Dependent Claim
20 words
The composition of claim 14 wherein said glycol phenyl ether is ethylene glycol phenyl ether or propylene glycol phenyl ether.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |