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Production of a spongy material, e.g. useful as a carrier for drugs, foods or cosmetics, comprises preparing a polymer solution, adding a compound that removes water, and drying the product
Production of a spongy material, e.g. useful as a carrier for drugs, foods or cosmetics, comprises preparing a polymer solution, adding a compound that removes water, and drying the product
Production of a spongy material comprises preparing a polymer solution, adding a compound that removes water, and drying the product. An Independent claim is also included for a spongy material produced as above.
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