C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
C01G 9/00 (2006.01) A01C 1/06 (2006.01) C01B 33/26 (2006.01) C01F 7/00 (2006.01) C01G 3/00 (2006.01) C01G 53/00 (2006.01) C08K 3/00 (2006.01) C08K 3/22 (2006.01) C08K 3/30 (2006.01) C09K 3/00 (2006.01) C09K 5/18 (2006.01)
Patent
CA 2278846
Novel, fine particulate synthetic chalcoalumite, process for preparation thereof, and a heat insulating agent and agricultural film containing said fine, particulate synthetic chalcoalumite. The above objects are met by synthetic chalcoalumite represented by formula (1) below: (M 1 2+)a-x(M2 2+)x Al3+4 (OH)b (A n-)c ~mH2O (1) (in which M1 2+ stands for Zn z+ or Cu 2+, M2 2+ is at least one divalent metal ion selected from Ni 2+, Co 2+, Cu 2+, Zn 2+ and Mg 2+, a is 0.3 < a < 2.0 (with the proviso that M1 and M2 are not the same), x is 0 ~ x <1.0, b is 10 < b < 14, A n- is at least one selected from SO 4 2-, HPO 4 2-, CO 3 2-, SO 3 2-, HPO3 2-, NO 3-, H2PO4-, Cl-, OH- and silicic ion, c is 0.4 < c <2.0 and m is 0-4), which has an average secondary particle diameter of not more than about 3 µm and a BET specific surface area of not more than about 30 m2/g; resin compositions containing the same; and agricultural film composed of said resin compositions.
Okada Akira
Takahashi Hideo
Kyowa Chemical Industry Co. Ltd.
Smart & Biggar
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