Flexible highly filled composition, resulting protective garment, and methods of making the same
AssigneeLite-Tech, Inc.
InventorsVictoria A. Rebar, Andrew B. Crawford, Nicholas A. Moses, David M. Krug
Life of this patent
Estimating the term…
Abstract
A filled composition for radiation shielding includes at least one polymer ingredient and at least one metal-containing filler. The at least one polymer ingredient is selected from the group consisting of a polyolefin elastomer, a polyolefin co-polymer, a polyolefin ter-polymer, and a combination thereof. The polyolefin elastomer, the polyolefin co-polymer, or the polyolefin ter-polymer includes monomer units derived from ethylene and at least one vinyl monomer having more than three carbon atoms. The at least one metal-containing filler is selected from a metal filler, a metal compound or a combination thereof.
Claims27
A filled composition for radiation shielding, comprising:
- at least one polymer ingredient selected from the group consisting of a polyolefin elastomer, a polyolefin co-polymer, a polyolefin ter-polymer, and a combination thereof, wherein the polyolefin elastomer, the polyolefin co-polymer, or the polyolefin ter-polymer comprises monomer units derived from ethylene and at least one vinyl monomer being butene or an alkene having at least five carbon atoms;
- and
- at least 60 weight percent of at least one metal-containing filler other than BaSO4 the at least one metal-containing filler comprising a metal having an atomic number greater than 50.
A filled sheet for radiation shielding, comprising:
- from about 0.4 wt. % to about 25 wt. % of at least one polymer ingredient selected from the group consisting of a polyolefin elastomer, a polyolefin co-polymer, a polyolefin ter-polymer, and a combination thereof, wherein the polyolefin elastomer, the polyolefin co-polymer, or the polyolefin ter-polymer comprises monomer units derived from ethylene and at least one vinyl monomer being butene or an alkene having at least five carbon atoms;
- from about 60 wt. % to 95.5 wt. % of at least one metal-containing filler other than BaSO4, the at least one metal-containing filler comprising a metal having an atomic number greater than 50;
- and
- from about 0.1 wt. % to about 15 wt. % of an additive package comprising an additive selected from the group consisting of a paraffinic oil, an aromatic oil, an antioxidant, a compatibilizer, an adhesion promoter, a processing aid, and a combination thereof.
A protective garment for radiation shielding, comprising a filled composition comprising:
- from about 0.4 wt. % to about 35 wt. % of at least one polymer ingredient selected from the group consisting of a polyolefin elastomer, a polyolefin co-polymer, a polyolefin ter-polymer, and a combination thereof, wherein the polyolefin elastomer, the polyolefin co-polymer, or the polyolefin ter-polymer comprises monomer units derived from ethylene and at least one vinyl monomer being butene or an alkene having at least five carbon atoms;
- from about 50 wt. % to 95.5 wt. % of at least one metal-containing filler comprising a metal having an atomic number greater than 50;
- from about 0.1 wt. % to about 15 wt. % of an additive package comprising an additive selected from the group consisting of a paraffinic oil, an aromatic oil, an antioxidant, a compatibilizer, an adhesion promoter, a processing aid, and a combination thereof;
- and
- at least one layer of fabric.
Dependencies are inferred from the claim text.