Method for preventing or eliminating water-absorption whitening of a molded article containing an acrylonitrile polymer or copolymer
AssigneeKureha Kagaku Kogyo Kabushiki Kaisha
InventorsMasaki Ohya, Mitsuru Hoshino
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Abstract
A method for preventing or eliminating water-absorption whitening of a molded article containing an acrylonitrile polymer or copolymer which comprises immersing the molded article into an aqueous medium containing a salt.
Claims11
A method for preventing or eliminating the water-absorption whitening of a molded article containing an acrylonitrile polymer or copolymer which comprises immersing said molded article into an aqueous medium containing one or more salts selected from the group consisting of halides excluding iodide, a nitrate and an acetate of one or more element included in Groups I, II, III and VIII, Periods 1 to 4 of the Periodic Table, excluding zinc, and having a solubility in water at the temperature of use of at least about 10% by weight, in an amount of from about 5% by weight to the saturation amount of said salt.
Dependencies are inferred from the claim text.