US5444102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoroiodocarbon blends as CFC and halon replacements
Assignee: JSN FAMILY #3 LP
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Filing: 1994-06-30
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Granted: 1995-08-22
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Expires: 2014-06-30
Abstract
Abstract A new set of effective, environmentally safe, nonflammable, low-toxicity refrigerants, solvents, foam blowing agents, propellants, and firefighting agents is disclosed. The agents are clean, electrically nonconductive, and have short atmospheric lifetimes, zero ozone-depletion potential, and low global warming potentials. The agents comprise at least one fluoroiodocarbon agent satisfying the general formula C a H b Br c Cl d F e I f N g O h , wherein a is between and including 1 and 8; b is between and including 0 and 2; c, d, g, and h are each between and including 0 and 1; e is between and including 1 and 18; and f is between and including 1 and 2, either neat or mixed with additives selected from the group consisting of: alcohols, esters, ethers, fluoroethers, hydrocarbons, hydrofluorocarbons, and perfluorocarbons.
Inventors
- 👤 Joathan S. Nimitz
- 👤 Lance H. Lankford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:43
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/149; A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0057; C09K3/00; C09K3/30; C09K5/041; C09K5/044; C09K5/045; C08J2203/00; C08J2203/12; C08J2203/14; C08J2203/142; C08J2203/146; C08J2207/00; C08J2207/04; C09K2205/00; C09K2205/10; C09K2205/11; C09K2205/112; C09K2205/12; C09K2205/122; C09K2205/128; C09K2205/32; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10S422/00; Y10S422/90; Y10S521/00; Y10S521/909; Y10S521/91
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
121 words
A method of using a foam blowing agent comprising the steps of: a) injecting a foam blowing agent into a monomer, where the foam blowing agent is a fluoroiodocarbon having the general formula C a H b Br c Cl d F e I f N g O h , wherein a is between and including 1 and 8; b is between and including 0 and 2; c, d, g, and h are each between and including 0 and 1; e is between and including 1 and 17, and f is between and including 1 and 2; b) allowing the monomer to polymerize; c) allowing the said foam blowing agent to substantially vaporize; and d) allowing the cell walls to harden.
Claim 2
Independent Claim
121 words
A method of using a foam blowing agent comprising the steps of: a) injecting a foam blowing agent into a monomer, where the foam blowing agent is a fluoroiodocarbon having the general formula C a H b Br c Cl d F e I f N g O h , wherein a is between and including 1 and 8; b is between and including 0 and 2; c, d, g, and h are each between and including 0 and 1; e is between and including 1 and 17, and f is between and including 1 and 2; b) allowing the monomer to polymerize; c) allowing the said foam blowing agent to substantially vaporize; and d) allowing the cell walls to harden.
Claim 3
Dependent Claim
47 words
The method of claim 1 wherein the step of placing a quantity of foam blowing agent comprises placing at least one fluoroiodocarbon selected from the group consisting of bromodifluoroiodomethane, chlorodifluoroiodomethane, difluorodiiodomethane, difluoroiodomethane, fluoroiodomethane, 1,1,1,2,3,3,3-heptafluoro-2-iodopropane, 1,1,2,2,3,3,3-heptafluoro-1-iodopropane, iodoheptafluorocyclobutane, iodopentafluorocyclopropane, N-iodobis(trifluoromethyl)amine, 1,1,2,2,3,3,4,4,4-nonafluoro-1-iodobutane, pentafluoroiodoethane, 1,1,2,2-tetrafluoro-1,2-diiodoethane, 1,1,2,2-tetrafluoro-1-iodoethane, 1,1,2-trifluoro-1-iodoethane, trifluoroiodomethane, and trifluoromethyl-1,1,2,2-tetrafluoro-2-iodoethyl ether.
Claim 4
Dependent Claim
13 words
The method of claim 1 further comprising the step of providing an additive.
Claim 5
Dependent Claim
32 words
The method of claim 3 wherein the step of providing an additive comprises providing an additive comprising a member selected from the group consisting of: ethers, fluoroethers, hydrocarbons, hydrofluorocarbons, ketones, and perfluorocarbons.
Claim 6
Dependent Claim
48 words
The method of claim 4 wherein the step of providing an additive comprises providing pentane and the step of providing a fluoroiodocarbon comprises providing a fluoroiodocarbon selected from the group consisting of: CF 3 I, CF 3 CF 2 I, and CF 3 CF 2 CF 2 I.
Claim 7
Dependent Claim
38 words
The method of claim 4 wherein the step of providing an additive comprises providing an ether selected from the group consisting of: diethyl ether, diisopropyl ether, dimethyl ether, di-n-butyl, di-n-propyl ether, 1,4-dioxane, ethylene oxide, propylene oxide, and tetrahydrofuran.
Claim 8
Dependent Claim
40 words
The method of claim 4 wherein the step of providing an additive comprises providing a fluoroether selected from the group consisting of: bisdifluoromethyl ether, hexafluorodimethyl ether, hexafluorooxetane, methyl trifluoromethyl ether, octafluorodimethoxymethane, octafluoro-1,3-dioxolane, pentafluorodimethyl ether, 1,1,2',2',2'-pentafluoro methyl ethyl ether, and 1-trifluoromethoxy-1,1,2,2-tetrafluoroethane.
Claim 9
Dependent Claim
35 words
The method of claim 4 wherein the step of providing an additive comprises providing a hydrocarbon selected from the group consisting of: butane, cyclopropane, 2,2-dimethylpropane, hexane, isobutane, ligroin, 2-methylbutane, 3-methylpentane, pentane, petroleum ether, and propane.
Claim 10
Dependent Claim
31 words
The method of claim 4 wherein the step of providing an additive comprises providing a hydrofluorocarbon selected from the group consisting of: difluoromethane, 1,1-difluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, pentafluoroethane, 1,1,2,2,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,1-trifluoroethane, and trifluoromethane.
Claim 11
Dependent Claim
30 words
The method of claim 4 wherein the step of providing an additive comprises providing a perfluorocarbon selected from the group consisting of: decafluorobutane, dodecafluoropentane, hexafluorocyclopropane, hexafluoroethane, octafluorocyclobutane, octafluoropropane, and tetrafluoromethane.
Claim 12
Dependent Claim
17 words
The method of claim 4 wherein the foam blowing agent is trifluoroiodomethane and the additive is difluoroethene.
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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) | 1998-08-21 | 1999-02-20 | 1999-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-21 | 2003-02-20 | 2003-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-21 | 2007-02-20 | 2007-08-22 | $7700.00 | Window Closed / Lapsed |