Patent US3884828A successfully refreshed from Google Patents.
US3884828A
Expired / Lapsed
US
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Propellants and refrigerants based on trifluoropropene
Assignee: Dow Silicones Corp
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Filing: 1970-10-15
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Granted: 1975-05-20
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Expires: 1990-10-15
Abstract
Abstract Aerosol propellants and refrigerants based on trifluoropropene (CF3CH CH2) are disclosed.
Inventors
- 👤 Anthony J Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:14
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/30; C09K5/00; C09K5/02; C09K5/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
76 words
IN AN AEROSOL PRODUCT WHICH CONSISTS ESSENTIALLY OF AN ACTIVE INGREDIENT, A SOLVENT AND A PROPELLANT IN A CONTAINER, THE IMPROVEMENT COMPRISING EMPLOYING TRIFLUOROPROPENE AS 1 TO 100 PERCENT BY WEIGHT OF THE PROPELLANT, THE BALANCE OF THE PROPELLANT BEING SELECTED FROM THE GROUP CONSISTING OF FLUORODICHLOROMETHANE, DIFLUOROCHLOROMETHANE, FLUOROTRICHLOROMETHANE, DIFLUORODICHLOROMETHANE, 1,2,2-TRIFLUORO1,1,2-TRICHLOROETHANE, 1,1,2,2-TETRAFLUORO-1,2-DICHLOROETHANE, 1,1,2,2,2-PENTAFLUORO-1-CHLOROETHANE, 1,1-DIFLUORO-1CHLOROETHANE, 1,1-DIFLUOROETHANE, OCTAFLUOROCYCLOBUTANE, METHYLENE CHLORIDE, 1,1,1-TRICHLOROETHANE, TETRAFLUOROETHYLENE, VINYL CHLORIDE, PROPANE, N-BUTANE, ISONUTANE, ETHYLENE, DIMETHYL ETHER, NITROGEN, NITROUS OXIDE, CARBON DIOXIDE AND MIXTURES THEREOF.
Claim 2
Dependent Claim
76 words
IN AN AEROSOL PRODUCT WHICH CONSISTS ESSENTIALLY OF AN ACTIVE INGREDIENT, A SOLVENT AND A PROPELLANT IN A CONTAINER, THE IMPROVEMENT COMPRISING EMPLOYING TRIFLUOROPROPENE AS 1 TO 100 PERCENT BY WEIGHT OF THE PROPELLANT, THE BALANCE OF THE PROPELLANT BEING SELECTED FROM THE GROUP CONSISTING OF FLUORODICHLOROMETHANE, DIFLUOROCHLOROMETHANE, FLUOROTRICHLOROMETHANE, DIFLUORODICHLOROMETHANE, 1,2,2-TRIFLUORO1,1,2-TRICHLOROETHANE, 1,1,2,2-TETRAFLUORO-1,2-DICHLOROETHANE, 1,1,2,2,2-PENTAFLUORO-1-CHLOROETHANE, 1,1-DIFLUORO-1CHLOROETHANE, 1,1-DIFLUOROETHANE, OCTAFLUOROCYCLOBUTANE, METHYLENE CHLORIDE, 1,1,1-TRICHLOROETHANE, TETRAFLUOROETHYLENE, VINYL CHLORIDE, PROPANE, N-BUTANE, ISONUTANE, ETHYLENE, DIMETHYL ETHER, NITROGEN, NITROUS OXIDE, CARBON DIOXIDE AND MIXTURES THEREOF.
Claim 3
Dependent Claim
16 words
An aerosol product as defined in claim 1 wherein trifluoropropene constitutes 100 percent of the propellant.
Claim 4
Dependent Claim
19 words
An aerosol product as defined in claim 1 wherein the trifluoropropene constitutes less than 100 percent of the propellant.
Claim 5
Dependent Claim
27 words
An aerosol product as defined in claim 3 wherein the trifluoropropene constitutes less than 100 percent of the propellant, and the balance of the propellant is 1,1,1-trichloroethane.
Claim 6
Dependent Claim
27 words
An aerosol product as defined in claim 3 wherein the trifluoropropene constitutes less than 100 percent of the propellant, and the balance of the propellant is fluorotrichloromethane.
Claim 7
Dependent Claim
27 words
An aerosol product as defined in claim 3 wherein the trifluoropropene constitutes less than 100 percent of the propellant, and the balance of the propellant is 1,1,2,2-tetrafluoro-1,2-dichloroethane.
Claim 8
Dependent Claim
27 words
An aerosol product as defined in claim 3 wherein the trifluoropropene constitutes less than 100 percent of the prOpellant, and the balance of the propellant is 1,2,2-trifluoro-1,1,2-trichloroethane.
Claim 9
Dependent Claim
91 words
In a process of expelling an aerosol product which consists essentially of an active ingredient, a solvent and a propellant from a container by means of the propellant the improvement comprising employing as the propellant a composition consisting essentially of from 1 to 100 percent by weight of trifluoropropene, the balance of the propellant being selected from the group consisting of fluorodichloromethane, difluorochloromethane, fluorotrichloromethane, difluorodichloromethane, 1,2,2-trifluoro-1,1,2-trichloroethane, 1,1,2,2-tetrafluoro-1,2-dichloroethane, 1,1,2,2,2-pentafluoro-1-chloroethane, 1,1-difluoro-1-chloroethane, 1,1-difluoroethane, octafluorocyclobutane, methylene chloride, 1,1,1-trichloroethane, tetrafluoroethylene, vinyl chloride, propane, n-butane, isobutane, ethylene, dimethyl ether, nitrogen, nitrous oxide, carbon dioxide and mixtures thereof.
Claim 10
Dependent Claim
91 words
In a process of expelling an aerosol product which consists essentially of an active ingredient, a solvent and a propellant from a container by means of the propellant the improvement comprising employing as the propellant a composition consisting essentially of from 1 to 100 percent by weight of trifluoropropene, the balance of the propellant being selected from the group consisting of fluorodichloromethane, difluorochloromethane, fluorotrichloromethane, difluorodichloromethane, 1,2,2-trifluoro-1,1,2-trichloroethane, 1,1,2,2-tetrafluoro-1,2-dichloroethane, 1,1,2,2,2-pentafluoro-1-chloroethane, 1,1-difluoro-1-chloroethane, 1,1-difluoroethane, octafluorocyclobutane, methylene chloride, 1,1,1-trichloroethane, tetrafluoroethylene, vinyl chloride, propane, n-butane, isobutane, ethylene, dimethyl ether, nitrogen, nitrous oxide, carbon dioxide and mixtures thereof.
Claim 11
Dependent Claim
16 words
A process as defined in claim 8 wherein the trifluoropropene constitutes 100 percent of the propellant.
Claim 12
Dependent Claim
18 words
A process as defined in claim 8 wherein the trifluoropropene constitutes less than 100 percent of the propellant.
References Cited (Backward Citations)
US3067263A
Cited
US3583921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |