US4019628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposal system
Assignee: Dow Chemical Co
•
Filing: 1974-10-30
•
Granted: 1977-04-26
•
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 05:35
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.
References Cited (Backward Citations)
US3012385A
Cited
US3169690A
Cited
US3338665A
Cited
US3249551A
Cited
US3352472A
Cited
US3427368A
Cited
US3723240A
Cited
US3546055A
Cited
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 |