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US 2024/0087764 A1Published application
Lead-containing flexible radiation-protective compositions and protective articles
AssigneeBurlington Medical, LLC.
InventorsAnita T. Broach, David Arnold, Eric Cornavaca, Lee Ann Fachko
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Abstract
Certain embodiments are described that are directed to lead containing compositions including radiation absorption metals in combination with a polymeric material. In some aspects, a composition includes lead, optionally at least one additional heavy metal known to have shielding capability against ionizing radiation and at least one polymer, polymer blend or co-polymer. Sheets and articles including the compositions are also described.
Claims21
A lead containing radiation-shielding metal-filled elastomeric composition comprising:
- lead and at least one metal selected from heavy metals known to have shielding capability against ionizing radiation and having atomic (Z) number of at least 50;
- a matrix comprising at least one polymer, polymer blend or co-polymer selected from the group consisting of thermoplastic polymers, thermoset polymers, elastomeric polymers, visco-elastic polymers, and combinations thereof,
- wherein the lead and the at least one metal are together in the range from 50 wt % to about 90 wt % based on the weight of the lead containing radiation-shielding metal-filled elastomeric composition, and wherein the lead and the at least one metal are arranged in the matrix to provide protection from both primary X-rays and scatter X-rays.
21-24. (canceled)
Dependencies are inferred from the claim text.