US3609372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped polymeric shield against neutron and gamma radiation
Assignee: Individual
•
Filing: 1968-09-06
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Granted: 1971-09-28
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Expires: 1988-09-06
Abstract
Abstract A polymeric material having a shielding effect against radiation is provided in the form of a shaped body which may be a plate, flexible sheet, or of any other desired shape, which body consists essentially of a synthetic plastic material including synthetic rubber, or of natural rubber, having distributed therethrough and intimately mixed therewith an effective amount of at least one compound of a saturated fatty acid being solid at room temperature and having at least 9 carbon atoms with at least one metal selected from the group consisting of lead, bismuth, tungsten, zirconium, iron, tin, cadmium, lithium and barium.
Inventors
- 👤 Reinhard Ernst Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:49
CPC Classifications
C; C04; C04B; C04B28/00; C04B24/00; C04B24/08; C04B24/085; C04B28/02; G; G21; G21F; G21F1/00; G21F1/02; G21F1/10; G21F1/103
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
14 words
A shaped body as defined in claim 1, and additionally including a boron compound.
Claim 2
Dependent Claim
36 words
A shaped body as defined in claim 2 wherein the content of said boron compound is in the range from about 3 to 10 parts by weight relative to 100 parts by weight of said material.
Claim 3
Dependent Claim
33 words
A shaped body as defined in claim 1, wherein said material is selected from the group consisting of polyurethane, polyamide, polyethylene, polyfluoroethylene, polypropylene, epoxy resins, unsaturated polymerizable polyesters, and natural and synthetic rubbers.
Claim 4
Dependent Claim
35 words
A shaped body as defined in claim 1, wherein the material is selected from the group consisting of polyvinyl chloride, polyvinyl fluoride, copolymers of polyvinyl fluoride and polyvinyl chloride, polystyrene and copolymers thereof, and polymethacrylates.
Claim 5
Dependent Claim
27 words
A shaped body as defined in claim 1, wherein said material is a synthetic rubber selected from the group consisting of chloroprene, butadiene-styrene polymerizates, polyisobutylene and alkyl-polysulfides.
Claim 6
Dependent Claim
27 words
A shaped body as defined in claim 1, wherein said effective amount is equal to between 5 and 60 percent of the weight of said shaped body.
Claim 7
Dependent Claim
27 words
A shaped body as defined in claim 7, wherein said effective amount is equal to between 10 and 40 percent of the weight of said shaped body.
Claim 8
Dependent Claim
49 words
A shaped body as defined in claim 1, and additionally including an effective amount of at least one finely subdivided substance selected from the group consisting of lead and lead compounds, tungsten and tungsten oxides, iron and iron compounds, boron and boron compounds, cadmium, cadmium oxide and cadmium sulfide.
Claim 9
Dependent Claim
21 words
A shaped body as defined in claim 9, wherein the particles of said additional finely subdivided substance are of colloidal dimensions.
Claim 10
Dependent Claim
26 words
A shaped body as defined in claim 9 wherein said boron compound is selected from the group consisting of boron carbide, boric acid and boron trioxide.
Claim 11
Dependent Claim
15 words
A shaped body as defined in claim 1 wherein said shaped body is a plate.
Claim 12
Dependent Claim
15 words
A shaped body as defined in claim 1 wherein said shaped body is a coating.
Claim 13
Dependent Claim
16 words
A shaped body as defined in claim 1 wherein said shaped body is a flexible sheet.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |