US5023010A
Expired / Lapsed
US
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Binary azeotropic compositions of 1,1,1,2,3,3-hexafluoro-3-methoxypropane with methanol or isopropanol or N-propanol
Assignee: EIDP Inc
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Filing: 1990-07-23
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Granted: 1991-06-11
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Expires: 2010-07-23
Abstract
Abstract Azeotropic mixtures of 1,1,1,2,3,3-hexafluoro-3-methoxypropane with methanol or isopropanol or n-propanol, the azeotropic mixtures being useful in solvent cleaning applications.
Inventors
- 👤 Abid N. Merchant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:34
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/032; C11; C11D; C11D7/00; C11D7/50; C11D7/5036; C11D7/504; C11D7/5063
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
103 words
An azeotropic composition consisting essentially of: (a) about 89-99% by weight 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 1-11% by weight methanol, wherein the composition has a boiling point of about 47.1° C. when the pressure is adjusted to substantially atmospheric pressure; (b) about 95-99% by weight, 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 1-5% by weight isopropanol, wherein the composition has a boiling point of about 51.4° C. when the pressure is adjusted to substantially atmospheric pressure; or (c) about 95.9-99.9% by weight 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 0.1-4.1% by weight n-propanol, wherein the composition has a boiling point of about 51.2° C. when the pressure is adjusted to substantially atmospheric pressure.
Claim 2
Dependent Claim
103 words
An azeotropic composition consisting essentially of: (a) about 89-99% by weight 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 1-11% by weight methanol, wherein the composition has a boiling point of about 47.1° C. when the pressure is adjusted to substantially atmospheric pressure; (b) about 95-99% by weight, 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 1-5% by weight isopropanol, wherein the composition has a boiling point of about 51.4° C. when the pressure is adjusted to substantially atmospheric pressure; or (c) about 95.9-99.9% by weight 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 0.1-4.1% by weight n-propanol, wherein the composition has a boiling point of about 51.2° C. when the pressure is adjusted to substantially atmospheric pressure.
Claim 3
Dependent Claim
20 words
The azeotropic composition of claim 1, consisting essentially of about 89-99 weight percent 1,1,1,2,3,3-hexafluoro-3-methoxypropane and about 1.0-11.0 weight percent methanol.
Claim 4
Dependent Claim
20 words
The azeotropic composition of claim 1, consisting essentially of about 95-99 weight percent 1,1,1,2,3,3-hexafluoro-3-methoxypropane and about 1-5 weight percent isopropanol.
Claim 5
Dependent Claim
20 words
The azeotropic composition of claim 1, consisting essentially of about 95.9-99.9 weight percent 1,1,1,2,3,3-hexafluoro-3-methoxypropane and about 0.1-4.1 weight percent n-propanol.
Claim 6
Dependent Claim
20 words
The azeotropic composition of claim 2, consisting essentially of about 94.7 weight percent 1,1,1,2,3,3-hexafluoro-3-methoxypropane and about 5.3 weight percent methanol.
Claim 7
Dependent Claim
20 words
The azeotropic composition of claim 1, consisting essentially of about 97.1 weight percent 1,1,1,2,3,3-hexafluoro-3-methoxypropane and about 2.9 weight percent isopropanol.
Claim 8
Dependent Claim
20 words
The azeotropic composition of claim 1, consisting essentially of about 99.2 weight percent 1,1,1,2,3,3-hexafluoro-3-methoxypropane and about 0.8 weight percent n-propanol.
Claim 9
Dependent Claim
103 words
An azeotropic composition consisting essentially of: (a) about 92-96% by weight 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 4-8% by weight methanol, wherein the composition has a boiling point of about 47.1° C. when the pressure is adjusted to substantially atmospheric pressure; (b) about 96-98% by weight, 1,1,1,2,3,3-hexafluoro-3-methyoxypropane with about 2-4% by weight isopropanol, wherein the composition has a boiling point of about 51.4° C. when the pressure is adjusted to substantially atmospheric pressure; or (c) about 96.9-98.9% by weight 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 1.1-3.1% by weight n-propanol, wherein the composition has a boiling point of about 51.2° C. when the pressure is adjusted to substantially atmospheric pressure.
Claim 10
Dependent Claim
103 words
An azeotropic composition consisting essentially of: (a) about 92-96% by weight 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 4-8% by weight methanol, wherein the composition has a boiling point of about 47.1° C. when the pressure is adjusted to substantially atmospheric pressure; (b) about 96-98% by weight, 1,1,1,2,3,3-hexafluoro-3-methyoxypropane with about 2-4% by weight isopropanol, wherein the composition has a boiling point of about 51.4° C. when the pressure is adjusted to substantially atmospheric pressure; or (c) about 96.9-98.9% by weight 1,1,1,2,3,3-hexafluoro-3-methoxypropane with about 1.1-3.1% by weight n-propanol, wherein the composition has a boiling point of about 51.2° C. when the pressure is adjusted to substantially atmospheric pressure.
Claim 11
Dependent Claim
19 words
A process for cleaning a solid surface which comprises treating said surface with an azeotropic composition of claim 1.
Claim 12
Dependent Claim
19 words
The process of claim 9, wherein the solid surface is a printed circuit board contaminated with flux and flux-residues.
Claim 13
Dependent Claim
12 words
The process of claim 10, wherein the solid surface is a metal.
Claim 14
Dependent Claim
22 words
A process for producing refrigeration which comprises evaporating a mixture of claim 1 in the vicinity of a body to be cooled.
Claim 15
Dependent Claim
22 words
A process for producing heat which comprises condensing a composition of claim 1 in the vicinity of a body to be heated.
Claim 16
Dependent Claim
28 words
In a process for preparing a polymer foam comprising expanding a polymer with a blowing agent, the improvement wherein the blowing agent is a composition of claim 1.
Claim 17
Dependent Claim
22 words
In an aerosol composition comprising a propellant and an active agent, the improvement wherein the propellant is a composition of claim 1.
Claim 18
Dependent Claim
28 words
A process for preparing aerosol formulations comprising condensing an active ingredient in an aerosol container with an effective amount of the composition of claim 1 as a propellant.
Claim 19
Dependent Claim
10 words
The composition of claim 1, consisting of 1,1,2,3,3-hexafluoro-3-methoxypropane and methanol.
Claim 20
Dependent Claim
10 words
The composition of claim 1, consisting of 1,1,1,2,3,3-hexafluoro-3-methoxypropane and isopropanol.
Claim 21
Dependent Claim
10 words
The composition of claim 1, consisting of 1,1,1,2,3,3-hexafluoro-3-methoxypropane and n-propanol.
References Cited (Backward Citations)
US2795601A
Cited
US2862024A
Cited
US2999815A
Cited
US2999816A
Cited
US3291844A
Cited
US3691092A
Cited
US3881949A
Cited
US3976788A
Cited
US3903009A
Cited
US4357282A
Cited
US4482465A
Cited
US4767561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-06-10 | 1994-12-10 | 1995-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-10 | 1998-12-10 | 1999-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-10 | 2002-12-10 | 2003-06-11 | $7700.00 | Window Closed / Lapsed |