Organic acid anion containing aluminum salt hydroxide...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

Reexamination Certificate

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C106S402000, C423S600000, C424S059000, C562S597000

Reexamination Certificate

active

07629480

ABSTRACT:
There are provided organic acid anion containing aluminum salt hydroxide particles represented by the following general formula (I):in-line-formulae description="In-line Formulae" end="lead"?Ma[Al1-xM′x]bAzBy(OH)n.mH2O  (I)in-line-formulae description="In-line Formulae" end="tail"?(wherein M is at least one cation selected from the group consisting of Na+, K+, NH4+and H3O+, M′ is at least one metal cation selected from the group consisting of Cu2+, Zn2+, Ni2+, Sn4+, Zr4+, Fe2+, Fe3+and Ti4+, A is at least one organic acid anion, B is at least one inorganic acid anion, and a, b, m, n, x, y and z satisfy 0.7≦a≦1.35, 2.7≦b≦3.3, 0≦m≦5, 4≦n≦7, 0≦x≦0.6, 1.7≦y≦2.4, and 0.001≦z≦0.5, respectively.)The particles are in the shape of grains, pairs, rectangular parallelepiped, disks (go stones), hexagonal plates, rice grains or cylinders and have a uniform particle diameter.

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English abstract and computer translation of JP 2007-039442 published Feb. 15, 2007.
European Search Report dated Jan. 31, 2008 in European Application No. 05 72 0103 corresponding to the present U.S. application.
Komatsu, Yoshinobu et al., “Preparation of composite metal polybasic salts by sulfate anion exchange of complex metal polybasic sulfate particles”, XP002465070, retrieved from STN Database accession No. 2002:63384 & JP 2002 020121 A (Mizusawa Industrial Chemicals, Ltd., Japan), Jan. 23, 2002.
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