Assertion: hypophosphorous acid | /r/HasProperty | coated with inorganic hydrates
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Source sentences:
text: The present invention relates to a halogen-free flame retardant additive, which essentially comprises metal salts of hypophosphorous acid coated with inorganic hydrates and / or organic salts, useful as a flame retardant for polymer compositions, alone or in combination with other flame retardants and optionally additional conventional components.