US4315831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the conditioning of solid radioactive waste with large dimensions
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1977-08-05
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Granted: 1982-02-16
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Expires: 1997-08-05
Abstract
Abstract Process for the conditioning of solid radioactive waste with large dimensions, constituted by contaminated objects such as cartridge filters, metal chips, tools etc., wherein said waste is incorporated into an ambient temperature-thermosetting resin to which has previously been added at least one inert filler, and the said resin is then cross-linked. One application is the encasing of solid radioactive waste below water, particularly at the bottom of a pond.
Inventors
- 👤 Bruno Morin
- 👤 Daniel Thiery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:20
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/28; G21F9/30; G21F9/301; G21F9/307
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
A process for encasing a solid mass of radioactive waste of large dimensions comprising: (1) premixing an ambient temperature-thermosetting resin with a cross-linking agent, a plasticizer, and an inert filler; (2) suspending said solid radioactive waste mass in said premixed resin; and (3) cross-linking said resin, said inert filler serving to reduce shrinkage and prevent cracking during said cross-linking, wherein said radioactive mass is encased in said resin under water.
Claim 2
Dependent Claim
70 words
A process for encasing a solid mass of radioactive waste of large dimensions comprising: (1) premixing an ambient temperature-thermosetting resin with a cross-linking agent, a plasticizer, and an inert filler; (2) suspending said solid radioactive waste mass in said premixed resin; and (3) cross-linking said resin, said inert filler serving to reduce shrinkage and prevent cracking during said cross-linking, wherein said radioactive mass is encased in said resin under water.
Claim 3
Dependent Claim
81 words
A process for encasing a solid mass of radioactive waste of large dimensions comprising: (1) premixing an ambient temperature-thermosetting resin with a cross-linking agent, a plasticizer, and an inert filler; (2) introducing said premixed resin into a mold; (3) suspending said solid radioactive waste mass in said premixed resin within said mold; and (4) cross-linking said resin, said inert filler serving to reduce shrinkage and prevent cracking during said cross-linking, wherein said radioactive mass is encased in said resin under water.
Claim 4
Dependent Claim
81 words
A process for encasing a solid mass of radioactive waste of large dimensions comprising: (1) premixing an ambient temperature-thermosetting resin with a cross-linking agent, a plasticizer, and an inert filler; (2) introducing said premixed resin into a mold; (3) suspending said solid radioactive waste mass in said premixed resin within said mold; and (4) cross-linking said resin, said inert filler serving to reduce shrinkage and prevent cracking during said cross-linking, wherein said radioactive mass is encased in said resin under water.
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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) | 1985-02-15 | 1985-08-17 | 1986-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-15 | 1989-08-17 | 1990-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-15 | 1993-08-17 | 1994-02-16 | $7700.00 | Window Closed / Lapsed |