Patent US4019628A successfully refreshed from Google Patents.
US4019628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposal system
Assignee: Dow Chemical Co
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Filing: 1974-10-30
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Granted: 1977-04-26
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Expires: 1994-10-30
Abstract
Abstract Hazardous materials such as askarels, chlorinated hydrocarbons or other ecologically undesirable liquids are disposed of by gelling the liquid within a combustible package and subsequently shipping the package to a qualified disposal site, such as an incinerator, which can incinerate halogenated hydrocarbons in an ecologically sound manner.
Inventors
- 👤 Robert L. Derby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:46
CPC Classifications
B; B09; B09B; B09B3/00; B09B3/20; B09B3/21; Y; Y10; Y10S; Y10S588/00; Y10S588/90
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
83 words
A shipping container particularly suited for the disposal of ecologically undesirable polymer swelling chlorinated hydrocarbon liquids, the shipping container comprising a combustible ecologically undesirable chlorinated hydrocarbon polymer swelling liquid-impermeable hollow body defining a space therein, disposed within said space a chlorinated hydrocarbon liquid swellable crosslinked synthetic resinous polymer which swells but does not dissolve in the liquids, the polymer being present in a quantity sufficient to form a gel when an ecologically undesirable polymer swelling chlorinated hydrocarbon liquid is added to the space.
Claim 2
Dependent Claim
83 words
A shipping container particularly suited for the disposal of ecologically undesirable polymer swelling chlorinated hydrocarbon liquids, the shipping container comprising a combustible ecologically undesirable chlorinated hydrocarbon polymer swelling liquid-impermeable hollow body defining a space therein, disposed within said space a chlorinated hydrocarbon liquid swellable crosslinked synthetic resinous polymer which swells but does not dissolve in the liquids, the polymer being present in a quantity sufficient to form a gel when an ecologically undesirable polymer swelling chlorinated hydrocarbon liquid is added to the space.
Claim 3
Dependent Claim
12 words
The container of claim 1 wherein the polymer is a styrene polymer.
Claim 4
Dependent Claim
27 words
The container of claim 1 wherein the hollow body comprises a first or inner layer of a plastic and a second or outer layer of corrugated paperboard.
Claim 5
Dependent Claim
14 words
The container of claim 1 wherein the hollow body has a generally rectangular configuration.
Claim 6
Dependent Claim
13 words
A plurality of containers in accordance with claim 1 disposed within a container.
Claim 7
Dependent Claim
95 words
A shipping container particularly suitable for the disposal of ecologically undesirable polymer swelling chlorinated hydrocarbon liquids, the shipping container comprising a combustible ecologically undesirable polymer swelling chlorinated hydrocarbon liquid-impermeable inner plastic layer and an outer layer of corrugated paperboard defining a space therein disposed within the space chlorinated hydrocarbon liquid swellable crosslinked synthetic resinous polymer particles which swell but do not dissolve in the liquids, the polymer particles being present in a quantity sufficient to form a gel when an ecologically undesirable chlorinated hydrocarbon polymer swelling liquid is added to the space within the container.
Claim 8
Dependent Claim
95 words
A shipping container particularly suitable for the disposal of ecologically undesirable polymer swelling chlorinated hydrocarbon liquids, the shipping container comprising a combustible ecologically undesirable polymer swelling chlorinated hydrocarbon liquid-impermeable inner plastic layer and an outer layer of corrugated paperboard defining a space therein disposed within the space chlorinated hydrocarbon liquid swellable crosslinked synthetic resinous polymer particles which swell but do not dissolve in the liquids, the polymer particles being present in a quantity sufficient to form a gel when an ecologically undesirable chlorinated hydrocarbon polymer swelling liquid is added to the space within the container.
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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) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |