Zinc-containing hydrotalcite
AssigneeSETOLAS Holdings, Inc.
InventorKen HOSOI
Life of this patent
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Abstract
The invention provides hydrotalcite that can inhibit foaming and can exhibit excellent heat stability when added to resins such as chlorine-containing resins, while also inhibiting resin coloration, without the combined use of additives with the resins. The hydrotalcite of the invention is represented by formula (1) and has a specific surface area of 120 m2/g to 250 m2/g as determined by the BET method. M2+xZny·M3+zOx+y+(3/2)z (1) (In the formula, M2+ represents at least one divalent metal ion, M3+ represents at least one trivalent metal ion, and x, y and z represent numbers satisfying 0<x≤ 0.5, 0<y≤ 0.2 and 0<z≤0.4.)
Claims8
A hydrotalcite represented by formula (1) and having a specific surface area of 120 m2/g to 250 m2/g as determined by a BET method,
- M2+xZny·M3+zOx+y+(3/2)z (1)
- In the formula, M2+ represents at least one divalent metal ion, M3+ represents at least one trivalent metal ion, and x, y and z represent numbers satisfying 0<x≤ 0.5, 0<y≤ 0.2 and 0<z≤0.4.
Dependencies are inferred from the claim text.