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US 12,760,188 B2Granted
Composition for blocking radon and method for preparing the same
AssigneeKorea Atomic Energy Research Institute
InventorsJong Seok Park, Sung In Jeong, Joon Pyo Jeun, Jang Geon Lee, Kab Soo Kim
Life of this patent
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Abstract
Provided are a composition for blocking radon and a method for preparing the same, and more particularly, to a composition for blocking radon including ethylene vinyl acetate (EVA); one or more polymer resins selected from the group consisting of polyurethane (PU) and silicone resin; and anionic surfactants, and a method for preparing a composition for blocking radon including irradiating radiation to the composition for blocking radon.
Claims6
A composition for blocking radon, consisting of:
- 40 to 90 wt % of ethylene vinyl acetate (EVA);
- 10 to 50 wt % of one or more polymer resins selected from the group consisting of polyurethane (PU) and silicone resin;
- 1 to 10 wt % of anionic surfactants;
- and
- illite nanopowder having an average particle diameter of 200 to 3,000 nm,
- wherein the illite nanopowder is included in an amount of 0.1 to 20 parts by weight per 100 parts by weight of a mixture including the ethylene vinyl acetate (EVA), the polymer resins, and the anionic surfactants.
3 more elements
Dependencies are inferred from the claim text.