US3856534A
Expired / Lapsed
US
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Anti-fog composition
Assignee: National Aeronautics and Space Administration
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Filing: 1971-09-08
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Granted: 1974-12-24
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Expires: 1991-09-08
Abstract
Abstract A composition for the prevention of fogging on surfaces comprising a surface active agent, water, and an oil time extender.
Inventors
- 👤 J Fletcher
- 👤 H Morrison
- 👤 D Carmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:05
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
110 words
AN ANTI-FOG COMPOSITION FOR APPLICATION TO VIEWING SURFACES CONSISTING ESSENTIALLY OF FROM ABOUT 6.8 TO 23.8 PARTS BY VOLUME OF A SURFACE ACTIVE AGENT; FROM 11.7 TO 62.3 PARTS BY VOLUME OF WATER; AND FROM 0.5 TO 15 PARTS BY VOLUME OF AN OIL TIME EXTENDER SELECTED FROM THE GROUP CONSISTING OF A SUBSTANTIALLY WATER-INSOLUBLE ORGANOPOLYSILOXANE HAVING THE FORMULA (R2SIO)N WHEREIN R IS AN ALIPHATIC OR AROMATIC HYDROCARBON GROUP HAVING FROM ABOUT 1 TO 8 CARBON ATOMS AND WHEREIN N RANGES FROM 2 TO 20 AND AN ORGANOPHOSPHATE ESTER HAVING THE FORMULA R3PO3 WHEREIN R IS AN ALIPHATIC OR AROMATIC HYDROCARBON GROUP HAVING FROM ABOUT 1 TO 8 CARBON ATOMS.
Claim 2
Dependent Claim
110 words
AN ANTI-FOG COMPOSITION FOR APPLICATION TO VIEWING SURFACES CONSISTING ESSENTIALLY OF FROM ABOUT 6.8 TO 23.8 PARTS BY VOLUME OF A SURFACE ACTIVE AGENT; FROM 11.7 TO 62.3 PARTS BY VOLUME OF WATER; AND FROM 0.5 TO 15 PARTS BY VOLUME OF AN OIL TIME EXTENDER SELECTED FROM THE GROUP CONSISTING OF A SUBSTANTIALLY WATER-INSOLUBLE ORGANOPOLYSILOXANE HAVING THE FORMULA (R2SIO)N WHEREIN R IS AN ALIPHATIC OR AROMATIC HYDROCARBON GROUP HAVING FROM ABOUT 1 TO 8 CARBON ATOMS AND WHEREIN N RANGES FROM 2 TO 20 AND AN ORGANOPHOSPHATE ESTER HAVING THE FORMULA R3PO3 WHEREIN R IS AN ALIPHATIC OR AROMATIC HYDROCARBON GROUP HAVING FROM ABOUT 1 TO 8 CARBON ATOMS.
Claim 3
Dependent Claim
39 words
The composition of claim 1, wherein said surface active agent is selected from the group consisting of anionic surface active agents, nonionic surface active agents, cationic surface active agents, amphoteric surface active agents, and ionic charge compatible mixtures thereof.
Claim 4
Dependent Claim
16 words
The composition of claim 2, wherein said surface active agent is an anionic surface active agent.
Claim 5
Dependent Claim
122 words
The composition of claim 3, wherein said anionic surface active agent is selected from the group consisting of the sodium, potassium and amine alkyl sulfates having from about 8 to 22 carbon atoms in the alkyl chain; the sodium, potassium and amine alkyl aryl sulfonates having from about 8 to 22 carbon atoms in the alkyl chain; the sodium, potassium and amine alkyl polyalkyleneoxy sulfates having from about 8 to 22 carbon atoms in the alkyl chain and from about 1 to 6 alkyleneoxy groups; the sodium, potassium and amine alkylaryl polyalkyleneoxy sulfates having from about 8 to 22 carbon atoms in the alkyl chain and from about 1 to 6 alkyleneoxy groups; and the alkyl glyceryl ether sulfonates having the formula:
Claim 6
Dependent Claim
18 words
The composition of claim 4, wherein the cation of said anionic surface active agent is sodium or potassium.
Claim 7
Dependent Claim
10 words
The composition of claim 4, wherein said cation is sodium.
Claim 8
Dependent Claim
16 words
The composition of claim 2, wherein said surface active agent is a non-ionic surface active agent.
Claim 9
Dependent Claim
202 words
The composition of claim 7, wherein said non-ionic surface active agent is selected from the group consisting of a polyalkylene oxide condensate of from about 1 to 6 alkylene oxide units with straight chain alcohols having from about 8 to 22 carbon atoms, a polyalkylene oxide condensate of from about 1 to 6 alkylene oxide units with a phenol; a polyalkylene oxide condensate of from about 1 to 6 alkylene oxide units with an alkyl phenol having from about 8 to 22 carbon atoms in the alkyl chain; a condensation product of an alkylamine having from about 8 to 22 carbon atoms in the alkyl chain with from about 1 to 6 moles of an alkylene oxide; a diloweralkyl alkyl amine oxoxide having from about 8 to 22 carbon atoms in the alkyl chain and from about 1 to 4 carbon atoms in the lower alkyl chain; a fatty acid amide, said fatty acid amide having from about 8 to 22 carbon atoms in said fatty acid; and a N-loweralkyl subsTituted fatty acid amide, said fatty acid amide having from about 8 to 22 carbon atoms in said fatty acid and from about 1 to 4 carbon atoms in said loweralkyl group.
Claim 10
Dependent Claim
16 words
The composition of claim 2, wherein said surface active agent is a cationic surface active agent.
Claim 11
Dependent Claim
82 words
The composition of claim 9, wherein said cationic surface active agent is selected from the group consisting of a quaternary ammonium salt having at least one alkyl group of from about 8 to 22 carbon atoms; a diloweralkyl alkyl benzyl ammonium salt, said alkyl group having from about 8 to 22 carbon atoms and said loweralkyl group having from about 1 to 4 carbon atoms; and an alkyl heterocyclic ammonium salt, said alkyl group having from about 8 to 22 carbon atoms.
Claim 12
Dependent Claim
17 words
The composition of claim 1, wherein said organophosphate ester is a triaryl phosphate derived from cresylic acid.
Claim 13
Dependent Claim
11 words
The composition of claim 1, wherein said water is deionized water.
Claim 14
Dependent Claim
70 words
The composition of claim 1, wherein said surface active agent is a mixture of a sodium, potassium, or amine alkylpolyalkyleneoxysulfate having from about 8 to 22 carbon atoms in the alkyl chain and from about 1 to 6 alkyleneoxy groups, a diloweralkyl alkyl amine oxide having from about 1 to 4 carbon atoms in the loweralkyl chain, and a sodium, potassium, or amine alkyl glyceryl ether sulfonate having the formula:
Claim 15
Dependent Claim
59 words
The composition of claim 13, wherein said surface active agent is present in an amount of from about 6.8 to about 23.8 parts by volume, wherein the weight ratio of said surface active agent mixture is about 25 parts of said alkylpolyalkyleneoxysulfate to about 5 parts of said amine oxide to about 4 parts of said alkylglyceryl ether sulfonate.
Claim 16
Dependent Claim
13 words
The composition of claim 14, wherein said alkylpolyalkyleneoxy sulfate is an alkylpolyethyleneoxy sulfate.
Claim 17
Dependent Claim
47 words
The composition of claim 13, wherein said oil is a fire resistant oil present in an amount of from about 2 to about 6 parts by volume, said oil comprising a triaryl phosphate derived from cresylic acid and having a viscosity of approximately 220 SUS at 100*F.
Claim 18
Dependent Claim
22 words
The composition of claim 16, wherein said water is present in an amount of from 19.0 to about 31.3 parts by volume.
Claim 19
Dependent Claim
24 words
The composition of claim 17, wherein said alkyl chain of alkylpolyalkyleneoxysulfate and alkyl glyceryl ether sulfonate has from about 10 to 14 carbon atoms.
Claim 20
Dependent Claim
30 words
The composition of claim 1, wherein said surface active agent is an ionic charge compatible mixture of anionic surace active agents, cationic surface active agents, and nonionic surface active agents.
Claim 21
Dependent Claim
114 words
An anti-fog composition for application to viewing surfaces consisting essentially of 35 parts by volume of an aqueous detergent which comprises 34 percent surface active agent mixture and 53.3 percent water; 5 parts by volume of deionized water; and 4 to 10 parts by volume of an oil time extender selected from the group consisting of a substantially water-insoluble organopolysiloxane having the formula (R2SiO)n wherein R is an aliphatic or aromatic hydrocarbon group having from about 1 to 8 carbon atoms and wherein n ranges from 2 to 20 and an organophosphate ester having the formula R3PO3 wherein R is an aliphatic or aromatic hydrocarbon group having from about 1 to 8 carbon atoms.
Claim 22
Dependent Claim
114 words
An anti-fog composition for application to viewing surfaces consisting essentially of 35 parts by volume of an aqueous detergent which comprises 34 percent surface active agent mixture and 53.3 percent water; 5 parts by volume of deionized water; and 4 to 10 parts by volume of an oil time extender selected from the group consisting of a substantially water-insoluble organopolysiloxane having the formula (R2SiO)n wherein R is an aliphatic or aromatic hydrocarbon group having from about 1 to 8 carbon atoms and wherein n ranges from 2 to 20 and an organophosphate ester having the formula R3PO3 wherein R is an aliphatic or aromatic hydrocarbon group having from about 1 to 8 carbon atoms.
Claim 23
Dependent Claim
70 words
The composition of claim 20, wherein said surface active agent is a mixture of a sodium, potassium, or amine alkylpolyalkyleneoxysulfate having from about 8 to 22 carbon atoms in the alkyl chain and from about 1 to 6 alkyleneoxy groups, a diloweralkyl alkyl amine oxide having from about 1 to 4 carbon atoms in the loweralkyl chain, and a sodium, potassium, or amine alkyl glyceryl ether sulfonate having the formula:
Claim 24
Dependent Claim
39 words
The composition of claim 21, wherein the weight ratio of said surface active agent mixture is about 25 parts of said alkylpolyalkyleneoxysulfate to about 5 parts of said amine oxide to about 4 parts of said alkylglyceryl ether sulfonate.
Claim 25
Dependent Claim
11 words
The composition of claim 22, wherein said alkylpolyalkyleneoxysulfate is an alkylpolyethyleneoxysulfate.
Claim 26
Dependent Claim
15 words
The composition of claim 20, wherein said oil time extender is said substantially water-insoluble organopolysiloxane.
Claim 27
Dependent Claim
14 words
The composition of claim 20, wherein said oil time extender is said organophosphate ester.
Claim 28
Dependent Claim
26 words
The composition of claim 25, wherein said organophosphate ester comprises a triarylphosphate derived from cresylic acid and having a viscosity of approximately 220 SUS at 100*F.
Claim 29
Dependent Claim
20 words
The composition of claim 26 wherein said alkyl chain in said alkylpolyalkyleneoxysulfate has from about 10 to 14 carbon atoms.
Claim 30
Dependent Claim
17 words
The composition of claim 25, wherein 4 parts by volume of said oil time extender is present.
Claim 31
Dependent Claim
16 words
The composition of claim 1, wherein said oil time extender is said substantially water insoluble organopolysiloxane.
Claim 32
Dependent Claim
14 words
The composition of claim 1, wherein said oil time extender is said organophosphate ester.
Claim 33
Dependent Claim
134 words
A process for preventing fogging on viewing surfaces which comprises; applying to said viewing surface a thin coat of an anti-fog composition consisting essentially of from about 6.8 to 23.8 parts by volume of a surface active agent; from 11.7 to 62.3 parts by volume oif water; and from 0.5 to 15 parts by volume of an oil time extender selected from the group consisting of a substantially water-insoluble organopolysiloxane having the formula (R2SiO)n, wherein R is an aliphatic or aromatic hydrocarbon group having from about 1 to 8 carbon atoms and wherein n ranges from 2 to 20, and an organophosphate ester having the formula R3PO3, wherein R is an aliphatic or aromatic hydrocarbon group having from about 1 to 8 carbon atoms and thereafter buffing said viewing surface until it is clear.
Claim 34
Dependent Claim
134 words
A process for preventing fogging on viewing surfaces which comprises; applying to said viewing surface a thin coat of an anti-fog composition consisting essentially of from about 6.8 to 23.8 parts by volume of a surface active agent; from 11.7 to 62.3 parts by volume oif water; and from 0.5 to 15 parts by volume of an oil time extender selected from the group consisting of a substantially water-insoluble organopolysiloxane having the formula (R2SiO)n, wherein R is an aliphatic or aromatic hydrocarbon group having from about 1 to 8 carbon atoms and wherein n ranges from 2 to 20, and an organophosphate ester having the formula R3PO3, wherein R is an aliphatic or aromatic hydrocarbon group having from about 1 to 8 carbon atoms and thereafter buffing said viewing surface until it is clear.
Claim 35
Dependent Claim
54 words
The process of claim 31 wherein said anti-fog composition consists essentially of an emulsified mixture of 35 parts by volume of an aqueous detergent which comprises 34 percent surface active agent and 53.3 percent water; 5 parts by volume of deionized water; and 4 to 10 parts by volume of said oil time extender.
Claim 36
Dependent Claim
70 words
The process of claim 31, wherein said surface active agent is a mixture of a sodium, potassium, or amine alkylpolyalkyleneoxysulfate having from about 8 to 22 carbon atoms in the alkyl chain and from about 1 to 6 alkyleneoxy groups, a diloweralkyl alkyl amine oxide having from about 1 to 4 carbon atoms in the loweralkyl chain, and a sodium, potassium, or amine alkyl glyceryl ether sulfonate having the formula:
Claim 37
Dependent Claim
40 words
The process of claim 33, wherein the weight ratio of said surface active agent mixture is about 25 parts of said alkylpolyalkyleneoxysulfate to about 5 parts of said amine oxide to about 4 parts of said alkyl glyceryl ether sulfate.
Claim 38
Dependent Claim
17 words
The process of claim 34 wherein 4 parts by volume of said oil time extender is present.
Claim 39
Dependent Claim
16 words
The process of claim 35, wherein said oil time extender is said substantially water insoluble organopolysiloxane.
Claim 40
Dependent Claim
14 words
The process of claim 33, wherein said oil time extender is said organophosphate ester.
Claim 41
Dependent Claim
16 words
The process of claim 37, wherein said organophosphate ester is a triarylphosphate derived from cresylic acid.
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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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |