C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
23/281, 400/7001
C01F 5/14 (2006.01) C01F 5/30 (2006.01) C01F 5/38 (2006.01) C08K 3/22 (2006.01) C08K 9/04 (2006.01) C08L 101/00 (2006.01)
Patent
CA 1090537
ABSTRACT OF THE DISCLOSURE A novel magnesium hydroxide of the formula Mg(OH)2 having (i) a strain in the (101) direction of not more than 3.0 x 10-3. (ii) a crystallite size in the (101) direction of more than 800 .ANG., and (iii) a specific surface area of less than 20 m2/g. The magnesium hydroxide, if desired as coated with anionic surfactants, is useful, for example, as fire retardants for thermoplastic synthetic resins and aqueous paints. The novel magnesium hydroxide is prepared by heating in an aqueous medium at an elevated pressure a novel basic magnesium chloride or nitrate of this invention expressed by the formula Mg(OH)2-xA?mH2O wherein A is Cl or NO3. X is a number of more than 0 but less than 0.2, and m is a number of 0 to 6.
253620
Kuroda Masataka
Miyata Shigeo
Okada Akira
Okazaki Tosihumi
Takasu Mitsuo
Kyowa Chemical Industry Co. Ltd.
Smart & Biggar
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