US4382078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel water-based, dimethyl ether-propelled aerosol composition
Assignee: Polaks Frutal Works BV
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Filing: 1981-01-23
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Granted: 1983-05-03
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Expires: 2001-01-23
Abstract
Abstract Water-based aerosol compositions are disclosed which contain dimethylether as propellant and include a block co-polymer of ethylene oxide and propylene oxide as a surfactant to retain the active ingredients in the liquid phase.
Inventors
- 👤 Hendrik J. Berkhoff
- 👤 Rudolf Zagt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:23
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/30; A; A01; A01N; A01N25/00; A01N25/02; A01N25/04; A01N25/06; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/046; A61K8/18; A61K8/72; A61K8/90; A61L; A61L9/00; A61L9/01; A61L9/14; A61Q; A61Q15/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 words
A water-based, dimethyl ether-propelled aerosol composition consisting essentially of: (a) about 0.3 to 5% active ingredients; (b) about 15 to 35% dimethyl ether; (c) about 1 to 6% surfactant, said surfactant being a block copolymer of ethylene oxide and propylene oxide having the general structural formula ##STR2## wherein x+z is a whole number between about 18 and 200, y is a whole number greater than about 21, and the polyethylene oxide blocks constitute about 20 to 80% of the total molecule by weight; and (d) the remainder water.
Claim 2
Dependent Claim
88 words
A water-based, dimethyl ether-propelled aerosol composition consisting essentially of: (a) about 0.3 to 5% active ingredients; (b) about 15 to 35% dimethyl ether; (c) about 1 to 6% surfactant, said surfactant being a block copolymer of ethylene oxide and propylene oxide having the general structural formula ##STR2## wherein x+z is a whole number between about 18 and 200, y is a whole number greater than about 21, and the polyethylene oxide blocks constitute about 20 to 80% of the total molecule by weight; and (d) the remainder water.
Claim 3
Dependent Claim
17 words
A composition according to claim 1 wherein the active ingredient is a perfume or a perfume composition.
Claim 4
Dependent Claim
11 words
A toilet spray formulation comprising a composition according to claim 2.
Claim 5
Dependent Claim
14 words
A composition according to claim 1 wherein the active ingredient is an insecticidal agent.
Claim 6
Dependent Claim
14 words
An aerosol spray container containing an aerosol composition or system according to claim 1.
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) | 1986-05-02 | 1986-11-01 | 1987-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-02 | 1990-11-01 | 1991-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-02 | 1994-11-01 | 1995-05-03 | $7700.00 | Window Closed / Lapsed |